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Abroad to improve the quality of corrugated board and productivity trends Commentary


Rate and weight of the board for different power levels of infrared radiation of different test methods. From the obtained data on the function of the infrared heat and humidity Distributor (Note: Infrared humidity distribution, the energy density up to 0.45MJ/s/m., Equivalent to 135.000BTU / h / ~) and the double corrugated board production line surface hot plate heating zone machine comparable, however, this must not mean that only in the considerable heat energy can be easily replaced by a single hot plate according to the role. Such as corn starch and other binders as needed at a certain temperature and a certain time to paste their full adhesion. Test proved insufficient time to process requirements under the central heating in the infrared device adhesives, will make it crystallize while the risk of failure. So. In order to improve the heat and add the hot plate so that the full sticky paste Taiwan Jing, places the infrared moisture distribution unit rack mounted on both sides before the heating section is appropriate. (C) corrugated backing the possibility of calibration temperature distribution. Determine the distribution of infrared devices used in energy very dichotoma key. Dichotoma in the test and decided to launch the appropriate power, as shown in Figure l distributor should stand the humidity and temperature measuring device located in the heating section of double-sided machine that has been heated before the hot plate corrugated backing on both sides in the test, infrared infrared ray device aimed only at the operator side of the backing piece of paper across the edge of the depth to width of 0.3m at the launch of the. Test methods are in the corrugated board production line speed was 183 ~ 198m/rain range, the infrared transmission power of its rated power, respectively, 50,100,[link widoczny dla zalogowanych],1 o0%,[link widoczny dla zalogowanych], 100 and disconnected five cases measured the edge and center mount zone temperature. F measured from the results listed in the table data shows that the distribution of such infrared humidity calibration device has enough energy left after the village paper preheater temperature differences. Confirmed in the test mount in the regular production line than the center of the edge of the temperature were low l6 ℃, all at full power in the device, its edge of the center of the temperature were higher than 33 ℃. Thus, in a cardboard double-sided cooling section conveyor when the sticky table at the edge of the intensity of a significant improvement. See F table. After using infrared humidity distribution results table mount device temperature (℃) built edge of the center m / min (percentage of total ratings) (infrared radiation at) away from the infrared at) off 95509618310O% 12996l0085 (d) automatic warping control System (AWC) in the corrugated board production line application. From the above arguments and experimental data show that the complete set of corrugated board production line distribution of infrared heating system (in-fra-redprofilingsystem) to prevent the design of corrugated board warpage is feasible to study data from a number of foreign countries, it is Design of an inevitable trend. See Figure 2 below. The figure revealed by the heating system for such distribution made in Pina's entire three-layer corrugated cardboard production line of automatic warping control system (AWC) in the configuration. Including at least three humidity scanner; which two to detect mount (board of the humidity. Rejection of such a computer scanner to control the operation of the site for production information, and then issued a directive by the computer to the pre-heater wrap angle drive alignment, glue roller and placed in pre-heater on the mount at the distribution of 2 sets of infrared heater frame. The adjustment mechanism as follows: First, the controlling of computers are pre-heater package roll angle and position sizing to make the surface mount and back mount, the average moisture content to minimize the difference; then again the infrared drying method two kinds of backing for further processing in order to reheat humidity by the uneven distribution of bands formed by differences in local humidity is also minimized. This eliminates the corrugated board across to the humidity, temperature difference and prevent warping generation. VI Conclusion corrugated cardboard, cardboard in the packaging industry can be said to have a long history,[link widoczny dla zalogowanych], still occupies an important position. Where there is a product storage, transportation and sale of office,[link widoczny dla zalogowanych], corrugated boxes can be everywhere,[link widoczny dla zalogowanych], nothing to do. Appears to be simple in its structure and shape, but in reality not. To improve its performance, such as compressive strength, it must be in the most basic materials, structure and process conditions do a lot. Warp of corrugated board is also said to light, sounds simple, but in fact the cause of their complex, difficult to eliminate; Jufan production rate, product quality and printability etc, relevant. This article in accordance with the relevant materials on corrugated board production lines overseas to eliminate product temperature and humidity differences to reduce and eliminate warping of the theory of corrugated board and measures are introduced in order to arouse the concern about gay. - China Packaging I9, 92 』on Volume 2 of / ss

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