Molding technology is mainly used for die cutting and indentation of various paperboards, and can also be used for die cutting and indentation processing of leather, plastics and other materials.
Molding processing is easy to operate, low in cost, low in investment, good in quality and quick in effect. It plays an important role in improving the grade of processed products and increasing the added value of product packaging. These characteristics of the molding process make it more and more widely used in the molding processing of various printing cardboards, and have become an indispensable important technology for the molding processing of printing cardboards.
1. Product classification and characteristics
At present, the main products of the molding process are various types of paper containers. The paper container mainly refers to the carton and the carton (both are formed by folding and joining the cardboard). It is difficult to separate the two. However, people usually use the size of the container, the thickness of the cardboard, and the packaging material. To distinguish between the nature, the complexity of the container structure and whether the type is standardized.
According to the characteristics of its processing and forming, carton can be divided into two categories: folding carton and paste carton.
The folding carton is made of various types of cardboard or small colored corrugated cardboard. At the time of production, mainly through printing, surface processing, die-cutting indentation, box making and other work processes, its flat unfolding structure is composed of contour cutting lines and indentation lines, and is formed by die-cutting calendar technology, and molding is its main Process characteristics. This kind of carton has high requirements for the quality of die-cutting indentation, so the specification and size requirements are strict. Therefore, the die-cutting indentation is one of the key processes of the carton manufacturing process and the basis for ensuring the quality of the carton.
The pasting carton is made of pasting materials and pasting the substrate cardboard together. In the molding of substrate paperboard, it is sometimes necessary to use the method of molding.
The raw material for making the corrugated cardboard box is corrugated cardboard. During the processing, the disc-type paper knife is often used for cutting, and the folding line is rolled out with the crimping wheel. However, die-cutting indentation is also an effective production method, especially for some non-linear profiled and functional structures, such as the unequal height of the inner and outer rocker covers and the opening of handle holes, ventilation holes, window openings, etc. Only the molding method is adopted to facilitate the molding.
Second, the molding principle
Before molding, according to product design requirements, use a steel knife (ie die cutting knife) and copper wire (ie crimping knife) or steel die to form a die cutting indentation plate (referred to as a compression plate), and install the compression plate to the molding On the machine, under the action of pressure, the cardboard blank is cut and formed and the folding line or other patterns are pressed out.
Rolling and cutting of steel knives is a physical process of shearing; the steel wire or steel mold exerts pressure deformation on the blank; rubber is used to make the finished products or scraps easily separated from the die cutting blade; the role of the pad Similar to chopping board. According to the different materials used in the pad, die cutting can be divided into soft cutting method and hard cutting method.
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Jiangxi Yingkai Wood Products Co., Ltd. , https://www.anjufurniture.com