Development of a package of dies for the covers of the twist-off system
DOI:
https://doi.org/10.15276/opu.2.72.2025.03Keywords:
cold stamping, tin, die package, punch, die, bendingAbstract
Cold stamping of metals is widely used in mechanical engineering and other industries for the production of parts and products from thin plates. The advantages of this method are high productivity of equipment and relatively low energy consumption. Stamping is carried out on vertical or horizontal presses using interchangeable stamping equipment. However, it is not possible to simply take and reduce the thickness of the tin of existing products, for example, twist-off covers, since reducing the thickness of the metal will immediately negatively affect the reliability of the sealing of the seal. Precautions must be taken that could adequately compensate for the decrease in the thickness of the metal. These measures are mandatory changes to the existing design of the covers, and therefore to the stamping equipment. The article discusses the design of a package of transfer press dies for the production of twist-off system lids for tin glass containers. The technology for manufacturing lids is given and the operation of each stamp from the bag is described separately. The designs of each die included in the package and the sequential development of technical documentation for stamping equipment are shown. The designs of the most important parts of dies are given, which have undergone changes during the transfer of the production of covers to tinplate of reduced thickness. Justification is provided and structural changes in the most important parts of dies are explained.
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