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Home / News / Product Knowledge / The design principle of the can making mold of the can making equipment

The design principle of the can making mold of the can making equipment

Can sealing machine As different molds have been used in many fields, and combined with mold manufacturing technology in recent years, there have been a certain number of changes and developments in this part, a general rule of vacuum forming mold design.
1. Shrinkage deformation, plastic shrinkage (such as pe), plastic deformation of some works, in any case, to prevent, in the cooling stage, plastic parts will be deformed. In this case, we should change the mold shape to suit the geometric deviation of the plastic part. For example: Although the wall of the plastic part remains straight, the reference center deviates by 10mm; raise the mold base to adjust the shrinkage deformation. Filling equipment
2. Shrinkage. The following shrinkage factors must be considered when manufacturing plastic molds. Molding shrinkage. If the shrinkage rate of the plastic cannot be known, it must be sampled, or the shape of the mold obtained by similar experiments. Note: The shrinkage rate obtained by this method is the size without deformation. Intermediate media that adversely affect shrinkage, such as ceramics and silicone rubber. The shrinkage of mold materials, such as cast aluminum shrinkage.
Can sealing machine 3. Dimensional stability. During the molding process, the contact surface between the plastic part and the mold is more dimensionally stable than the mold part. If the thickness of the material is changed in the future due to the requirement of material rigidity, it will cause the death of males to females. The dimensional tolerance of non-plastic parts is less than 10% shrinkage. Filling equipment
4. The plastic surface forms the range of material wrapping. The surface structure of the plastic parts can meet the contact with the mold. If possible, plastic parts and mold surfaces are in contact with a smooth surface. It is not that women's molds make bathtubs and washtubs.
5. Modification: If the plastic part of the jaw cut by a saw is used mechanically horizontally, there must be at least a 6 ~ 8mm edge in the height direction. Choose others, such as grinding, laser cutting, or jet, and there must be a margin. The gap between the edge cutting lines and the trimming punching die with distributed width is very small, which should be paid attention to.
In Experiment 6, the batch size and mold production can be made of wood or resin. However, if the mold shrinkage rate of the product, dimensional stability, and cycle time data are obtained from the experiment, the experiment with a single cavity mold should be used to ensure that it can be used in production conditions. Generally, plaster molds are made of copper, aluminum, or aluminum alloy steel, and aluminum resin is rarely used.
Can sealing machine 7. Geometric design, design should consider, dimensional stability and surface quality. For example, product design and dimensional stability require the use of concave molds (molds), but high surface gloss is required but male use (punching) is required. As a result, plastic parts ordering considers these two aspects, so that the product can be produced under certain conditions.
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