Disposable paper cups, paper plates, paper bowl food container are widely used all over the world, the market is very broad, usage, due to the requirements of environmental protection, food, drinks, lunch boxes will gradually blocking using environmentally friendly water-based ink to printing, and paper cups, paper plates, paper bowl molding process, from paper to the finished product production process.
Xi 'an black cattle machinery co., LTD., in the domestic first developed flexographic printing presses, after more than ten years of research and exploration, has formed a powerful technology advantage and rich practical experience, nearly three years as paper cups, paper plates, paper bowl industry gradually adopted flexo printing die cutting process of blocking, professionally developed flexible printing paper cups, paper plates, die cutting machine.
The type of machine to spread out the original process, and integrated into a one-time process. Adopted the flexible printed version of the water-based ink and has reached the requirement of environmental protection. And using continuous printing and cutting with one, the new punching positioning has been declared national patent, the whole machine structure also declare a national patent, the patent technology changes the traditional method, make the world can reach speeds of more than 250 times/min, the speed of up to 400 times/min. So as to achieve the world leading level of the industry, will be to production technology of paper cups, paper plates, paper bowl PiCai a leap, is a revolution of traditional craft.
First of all, we are now commonly used methods and new technique are compared and the following:
The traditional method is to use a single film paper used offset printing machine production, offset printing ink printing with oil of first, have certain toxicity and smell, is accelerating, another is to reserve water sheet-fed production die cutting knife, for paper cups, paper plates, paper bowl; Its shape is arc shape, such products with sheet-fed production, production with continuous image shape methods, more waste as much as 4.2% of the material, causing the waste during the production. As per shift with base paper 4000 kg, 200 kg waste paper, laminating paper, 7500 yuan per ton, which lost 1500 yuan, and printing quality of turnover, piled up, manual cleaning after die cutting, the time consumption, the consumption of the factory, the human consumption, the consumption of energy, is not detailed in this clearing of its value, but think you if my wife is industry, will know.
In the past two years to the requirements of environmental protection, the unit type flexographic printing press to enter the industry of paper cups, paper plates, paper bowl, also can realize continuous printing and die cutting continuously, but because of the die cutting tool manufacturing complex, cost 150000 yuan each, such as a cutting tool is arranged to cross five weeks eight, each tool can produce only 40 turns, grinding turn three times for a total of 10 million, production of paper cups total of 400 million pieces, its each piece cost also has 0.04 points, this kind of tool is temperamental, accidentally will have the possibility of damage, it will be unimaginable. In addition to segment circular die cutting tool in the process of production of finished products and pick out waste hard to complete, mechanical speed could not open. Collect high failure rate, so from rolling to drench the membrane paper printing and continuous circular die cutting flexo attachment process due to the high cost, difficult, is not accepted by the industry, only die cutting area is slightly larger varieties have rare use (such as KFC, McDonald's use of square plate).
The force of the market is to promote technological progress, domestic manufacturers in nearly a year to accept and adopt the good printing coil, secondary upper die tangent method. Secondary upper die tangent driven by servo motor, photoelectric registration with flat pressing punching method to complete the processing of paper cups, paper plates, paper bowl, this method adopted by the bank acceptance and gradually. But this kind of technology and printing process is divided into two, more out of the production process, and now all positioning is through the photoelectric tracking, servo feed, each cup unit feed cutting operations, most can only achieve 250 beats per minute, which can do 300 times, if it is to use wooden knife version of die cut at most only do 70 times per minute, affiliates and stripping efficiency is not high, due to a single paper cup height is only 90 mm, cutting 250 beats per minute, the feeding speed is only 22.5 meters per minute, if use die cut each board for four only and only 360 mm, 70 beats per minute to reach the feeding speed of 25.2 m, even if such as cutting speed and printing machine, in addition to control difficult, also seriously affect the normal work of the printing press, because flexible printing speed printing quality amounted to less than 30 meters above will produce such as dry plate, overprint instability and so on. How to change traditional intermittent paper feed positioning methods both at home and abroad, to make every minute to send paper cites 400 ~ 500, and each stability accurately to printing and die cutting together effectively, so that the printing and die cutting process for one time. After two years of exploration, this problem has been overcome. Guangzhou labels show in March, 2008, our company unveiled the first prototype, cutting speed reached 400 beats per minute, after the design of optimized in testing the limits in the factory, reached 500 times per minute, small mechanical vibration, stable printing, waste normal continuous, industrial production will ensure production operation from 350 to 400 beats per minute.
As a result of the rich experience of company position we have adopted mechanical intermittent mechanism and its positioning precision at high speeds can guarantee to achieve the level of + / - 0.2 mm, is faster than servo positioning precision frequency. Has applied the patent of the agency and the continuous production of the whole machine has applied the patent. In order to make the industry insiders are not only just cutting method is a kind of choice, we also will soon sell a wood die cutter line version of die cutting method. Two methods have their advantages and disadvantages. Every time when cutting operation can only be one line, although life is very long, but to invest die-cutting knife for each group of 4 to 50000 yuan, but the product type is good, without human waste, less production batch big specification is more appropriate, wooden die cutting we use each printing unit circle method, 3 ~ 4 row for each die cutting length between 300 mm to 400 mm, 150 times per minute, this approach products behind one's hand to tear rolled off the production waste cleaning process, has a tool cost is low, the characteristics of variety change fast. But no matter choose that way all can make the printed at speeds up to 35 m ~ 60 m or higher, won't produce flexible printing fault.
With the gradually popularization of this type of machine and use, will be for paper cups, paper plates, paper production enterprises, reduce fuel efficiency, energy conservation, environmental protection provides an efficient way of production, will give your the commanding heights of the enterprise in competition, for you to win more profit and competitive advantage.
