China's packaging machinery industry, was formed in the late 1970s, early 1980s, 90 years into the period of rapid development, has now entered the whole product structure adjustment and improving innovative capacity period. China's heavy bag packaging machinery development also with cement bags and other large-capacity bag improvement and continuous development. Cement packaging, for example, with iron, wooden, straw bags, sacks and subsequent multi-seam paper, the development of today with new materials, new bags of bagged cement type-based, has come a long History.
Currently, the world's most advanced packaging machinery development has emerged in machine, electricity, gas, liquid, light, magnetism, born as one of the momentum, the production of high-efficiency, energy-saving products recyclable technology, high-tech and practical, intelligent already into a trend, this should also be the mainstream of China's packaging machinery industry development direction. In the product structure adjustment, to quickly change to low-tech oriented status, to learn foreign advanced technology, development and production of high efficiency and low consumption, marketing LO large complete sets of equipment and high-tech products, according to the conditions developed for packaging equipment, accelerate the upgrading of packaging machinery to further develop domestic and international markets.
A plastic woven bags and plastic textile machinery Situation and Development Direction
The late 1970s, China's introduction of plastic woven bags, followed by the introduction of textile equipment. Plastic woven packaging for its rugged, low cost, rapid and simple fabrication process used in many fields, especially for large-capacity transport packaging. Plastic bags for cement packaging from 1982 began. Hundreds of plastic bags production line imported from different countries, of which more complete, high level of equipment also has twelve ten. From the mid-1980s, China's Zhejiang, Jiangsu and other places have successfully developed domestic equipment and large quantities on the market for our plastic bags packaging industry made great contributions.
90 plastic bags for the packaging has been developing rapidly, to 1995 plastic bags for cement packaging has reached 5.6 billion, accounting for two-thirds of the total cement packaging. GB9774-1996 "cement bags" implementation of the standard, and gave plastic bags and plastic bag making equipment manufacturing companies launched a shot of stimulants, various grades of plastics and plastic weaving equipment manufacturer Bianzhi springing up like appearance. But from the plastic bags industry as a whole industrial structure and scale, there is a scattered and small phenomenon, most companies only one production line. As small-scale enterprises, the production capacity is insufficient, difficult with international standards, difficult to form a series woven products, it is difficult to achieve technological innovation. In recent years, many entrepreneurs see this, set up a woven group, some areas such as the city has emerged woven pattern loose collaborating organizations. After years of excellent storage inferior elimination, so that some have certain advantages, well-managed, innovative companies capable foothold, to achieve development, but also make a lot of weak companies out of business.
FIBC production of plastic woven much later than in developed countries about 20 years, is currently in rapid development period. But our FIBC enterprise scale, there is an independent product development capabilities, very few companies can only produce low-grade, low value-added products. For the production of high-grade waterproof, breathable, mildew, sun, flame safe, environmentally friendly, and many other features and trays FIBC bags, there are no specialized equipment and advanced testing equipment.
Similar products in the digestion and absorption of foreign technology, based on over ten years of development, China's plastics machinery manufacturing woven basically over imported equipment history, and Chinese products have been out of the country, in the Middle East, Southeast Asia, Russia and even the United States and other countries, to performance price advantage, occupy a certain market share. But it should be soberly aware that China's plastics compared with foreign products, there are still gaps weaving machinery, a considerable number of low-grade plastic weaving machinery, automation level is not high, poor reliability, urgent upgrade file.
At present, China's plastic weaving equipment shall develop the following aspects: Drawing machines and laminating machines and other centralized control unit uses a microprocessor, process parameter setting and display of digitized, perfect temperature control system, internal coating technology; circular loom : To improve manufacturing precision, ease of rolling shuttle wheel Biansi reduce the shuttle drive power, increase speed and reduce breakage rate and increase the weft weft stop motions End sensitivity; sided multicolor presses to development; accessories specialization of production; FIBC on the grade, special equipment development is a priority.
Two paper bags, composite bags and bag-making equipment status and development
Seam multilayer paper bags are heavy bags packed traditional pouch type, are also part of the cement, chemicals, food and feed industries. Its equipment bag basically follows the early years of high barrel roll forming machine is playing, and then sewing the seam. Seam bag with valve port, its corner with the valve port, this pouch type has also been used for many years, the trend is gradually being phased out, the device has also been aging, need to be updated.
Bottomer international fashion bags are the preferred type bags It has the following ten characteristics of a heavy bag in the crowd: high solid, low cost, improve loading speed, ease of implementation pocket automation, environmental performance, improve system bag production efficiency, improve the stability stack full use of warehouse transport capacity, self-reliance and strong, easy identification.
From the 1980s onwards, industrial countries have basically completed the paste from the bottom seam to the end of the transition. Since 1989, China has imported from Germany has the world's advanced level of the 1980s bottomer paper bag production line, the end of our hand-paste bag of history. Abandoned sewing changed paste achieved certain results, development of special equipment also made progress.
Bottomer bags can be used to hold powder, granules, tablets, wadding, viscous materials, such as cement, grain, seeds, starch, feed, fertilizer, chemicals, mineral powder, tea, herbs and so on. In recent years, with the improvement and packaging used to contain bitumen, paraffin wax, paint, coatings and other viscous materials can partially substitute steel drums.
Current multiply paper paste bag equipment development, mostly from digesting and absorbing foreign technology, domestic generic device is already in Jilin, Henan, Guangdong, Shandong and production levels close to 80 years abroad, basically meet the requirements of the domestic production of multilayer paper bags.
Laminating plastic woven bags are dressed bottomer chemicals, fertilizers and other materials ideal packaging bags for domestic use mostly bottom seam bags. As imports paste bag equipment is expensive, domestic enterprises unbearable, hindering export products with international standards process. China has independently developed the first domestic life equipment multifunction plastic bags in Qingdao successful trial production, indicates that China will no longer be dependent on imports of similar products.
New composite paper material?? Folder tendons international and domestic paper to fill the gaps, but to paste bag unit to bring new issues, the existing multi-layered paper paste bag machine menu settings can not meet the applicable domestic equipment production line .
New subordinated transport packaging?? Paper-based bulk liquid materials packaging bags (referred to liquid packaging bags) is the traditional drums and plastic drums of major reforms.
Liquid packaging bags with three anti-(moisture, corrosion, seepage), three anti-(anti-extreme pressure, impact resistance, anti-aging) of the outstanding advantages to overcome the drums and plastic drums for many drawbacks. Many of the original use of drums and plastic drums of material, you can directly use liquid packaging bags, the developed countries have started to promote and continue to expand the scope in the country just emerging nationally appropriate professional equipment have been developed.
In summary, paper bags, composite bags and direction of development of special equipment has the following characteristics: paste bag and multifunction devices to development; paste bag equipment development to implement high-grade type and the popularity for SMEs while simultaneously; complex Film woven bag paste bag device To replace the adhesive bonding process using heat method process direction; develop special equipment manufacturing cylinder; continue to improve liquid packaging Bag Making equipment performance, making it stronger support to meet the huge market requirements.
3 intelligent direction of development of plastic machinery
Experts predict that intelligence will develop a new direction for plastic machinery. In recent years, the rapid development of specialized production, as feeding device, screw, barrel, reducer and quick changer devices, zero production parts can own production. Delivery period has been shortened to 6-9 months, which is about 13 times the past; product variety to variety development, such as a variety of injection molding machines, extruders and blow molding machines, injection molding machines in particular, large, very large product after another. Experts pointed out that the development of high-precision presses goal is to incorporate more electronic technology, network technology, to achieve automatic control of machinery will become the protagonist of the future market.