The change and trend of carton die-cutting plate production technology
1. The structure is developing in a more reasonable direction
The traditional form of the carton die-cut plate is a hand-made cast lead plate, usually using a certain periphery of a special wooden box as the reference for the arrangement of lead blocks, using a number of lead blocks of different sizes and soft iron lining to cut the knife line and press The trace line is fixed according to the size of the drawing, and the corners and arc parts are casted with lead solution, supplemented by a liner to make up for the lack of size, and then the wooden box is fixed with adhesive. Since the manufacturing process is mainly manual operation, the work efficiency is low, the dimensional accuracy is poor, and the randomness is large. In addition, lead is a heavy metal and harmful to humans. At present, this die-cut version has been eliminated.
In the future, the use of wood veneer to replace the cast lead plate, its structure is much more reasonable than the cast lead plate, not only reduces the cost of plate making, reduces the plate making time, avoids lead pollution, but also solves the problem that the cast lead plate is likely to be crossed and dropped , Loose version and loose knife connection. However, wood veneers are susceptible to deformation due to changes in ambient temperature and humidity, and poor dimensional stability. At present, it is also popular to use fiber plastic plates and sandwich plates as the base materials of die-cut plates abroad, and its performance structure is more reasonable. Compared with wood veneers, fiber plastic plates and sandwich plates are minimally affected by changes in temperature and humidity, not only have high dimensional accuracy, but also have a long service life, which are 3 times and 6 times more than wood veneers, respectively.
2. The production process is developing in a more advanced direction
The key to making wood veneers and other substrate plates is to groove the substrate plate. As early as 1995, whether to scribe a line on the substrate plate, or to drill holes at each corner of the box line and the beginning of the line segment, and insert the saw blade into the hole along the box line saw slot, it was manual operation. Although this process is one step ahead of the production of cast lead, it still has the disadvantages of low production efficiency, high labor intensity, and inaccurate grooving.
The application of computer drawing technology and the development of wood prototypes have made the production of carton die-cutting plates into a semi-mechanized stage. Paste the unfolded graphics of the carton drawn by the computer to the substrate version, and you can drill holes and saw slots in the wood prototype. The scribing and sawing slots are freed from the original state of manual operation, reducing labor intensity and improving work efficiency. In the processing of mechanical saw grooves, it is still necessary to manually push the substrate plate to control the direction of the saw groove, so the quality of the saw groove has a great relationship with the operator's operating technology, and the dimensional accuracy, straightness, and repeatability of the saw groove cannot be very good. The labor intensity is still high. This kind of processing technology is still widely used in China due to small equipment investment and low manufacturing cost. With the continuous advancement of science and technology, the production process of carton die-cut plates is developing in a more advanced direction.
3. The introduction of high technology has improved the quality and automated processing level of the carton die-cutting plate
The application of high-tech technologies such as laser technology, CNC technology, CAD / CAM, etc. has made a new leap in the production technology of carton die-cut plates. As early as the early 1990s, developed countries in the world have successively developed CAD / CAM systems for advanced carton die-cutting plates. Take the carton die-cutting version CAD / CAM system developed in Japan as an example. This system includes CAD-MARK carton design software, carton sample cutting, plotter with dual functions of drawing and proofing, dedicated to carton die-cutting plate processing Laser cutting machine, automatic cutter and automatic bending machine. Because the system adopts computer numerical control technology and new laser grooving technology, the shape of the graphics is accurate and repeatable. The grooves cut are smooth and straight, with high dimensional accuracy and fast grooving speed. Several times to dozens of times, so that the production cycle of die cutting plate is greatly shortened.
CAD-MARK software can design the carton structure and draw accurate graphics according to user requirements. The carton sample cutting machine can process the design results into carton samples. Quality graphic cutting. According to the input data, the automatic cutter can accurately cut the cutting material, and the automatic bending machine can automatically bend it into the desired shape, so as to ensure that the knife arrangement system produces a high-precision die cutting plate.
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