Designing corrugated rolls with science and technology

The amount of paper used in corrugating rolls is an important factor that affects the cost of production technology for corrugated paperboard manufacturing. Some foreign countries with relatively advanced packaging industry have attached great importance to the economic indicators of corrugated roller paper consumption. For example, Mitsubishi Japan has designed the same type of corrugated roller type as standard type and economic type separately. Therefore, although the height is the same, but the number of turns per 300 mm is different, the paper consumption rate (also known as buckling, shrinkage and corrugation, etc.) is completely different.
Taking a three-layer corrugated paperboard production line with an annual output of 10 million square meters as an example, if the paper consumption rate is reduced by 1%, then more than 100,000 square meters of corrugated base paper can be saved, and the larger the output, the thicker the paperboard (such as five floors). Seventh floor), the more potential savings are. The paper consumption rate is the ratio of the length of a single tooth profile curve to the length of a single tooth. That is, the ratio of the length of the corrugated fiber to the length of the corrugated base paper after forming. Its rationality is an important economic indicator for directly measuring the quality of corrugating rollers.
The new process is computer-aided and scientifically designed. Users can directly participate in the design when repairing and making new corrugating rollers. The software can be used to evaluate and select the economy, rationality and quickness of various types of stencils.
With the rapid development of the carton industry, corrugating rollers tend to have wide widths, large diameters, and high speeds, and the equipment tends to be versatile. Some production lines will increase E-cardboard, F-type, G-type, etc.
It is determined by the forming mechanism of the corrugation that the corrugating must be single-tooth meshing. When designing the corrugated type, it must be controlled within a certain range of wrapping angles (where the wrapping angle is the sum of the wrapping angles of the running paper on the tops of the contacting teeth). ) If the system is reformed blindly, the angle of the corrugated paper is too large, and the corrugating base paper cannot slide between the tooth profiles to supplement the amount of paper needed for corrugation molding. This will impede the forming of the cardboard and cause the corrugated paper to break.
The design software calculates the roll angle of the roll while designing the roll shape, and can adjust it through calculation to design a scientific, economical, reasonable, and reliable micro cardboard.
The old roller repair process The above process is also used to repair various corrugated rollers and pressure rollers, which greatly improves the durability of the repair roller. At the same time, the diameter, length, corrugation roller height, middle height and runout of the repair roller must be maintained. , hardness, surface appearance and other comprehensive cleaning inspection, all damage areas and data are recorded in the incoming report to the factory, in order to promptly contact the customer in detail repair content.
Computer-aided design of enamel type and preparation of relative special precision diamond rollers. In addition to the repair of the roller surface and the repair and repair of bearing positions and other axial positions, it is also possible to modify and replace the entire shaft head. The repaired rollers leave the factory with detailed inspection reports of various technical indicators for users' reference and filing. At the same time, the old roller will be mapped for calculation and preparation so that new rollers can be made for customers at any time.
The new manufacturing and repairing process of alloy steel corrugating rollers has prolonged the service life of corrugating rollers, improved economic performance, ensured various precision indexes of corrugating rollers, guaranteed the quality of cardboard, and at the same time also satisfied the import of high-speed production lines above 250 M/min. Upper corrugated roller repair and manufacturing needs.