Three aspects of economic and technical indicators for embossing machine molds

　　1. The accuracy and stiffness of molds ① The accuracy of molds includes dimensional accuracy, shape accuracy, positional accuracy, and surface roughness. The accuracy of molds is mainly reflected in the precision of mold parts and fitting accuracy. The accuracy of the working part of the mold is higher than that of the product part, for example, the accuracy of the punching edge size is higher than that of the product part, and the numerical size and uniformity of the punching clearance between the punching convex and concave molds are also one of the main accuracy parameters. The accuracy measured usually refers to the accuracy under non working conditions (such as punching clearance), that is, static accuracy. In the working state, under the influence of working conditions, static accuracy changes and becomes dynamic accuracy. Dynamic accuracy is the truly meaningful data. The accuracy of general molds should be coordinated with the accuracy of the product, and is also constrained by mold processing technology. With the development of manufacturing technology and the improvement of mold processing technology, the accuracy of molds will also be correspondingly improved. The interchangeability of mold working parts will also become a reality in production The stiffness of the mold is important for high-speed stamping molds, large-scale stamping forming molds, precision plastic molds, and large-scale plastic molds. It not only requires high accuracy, but also good stiffness. This type of mold has a high workload. When there is significant elastic deformation, it not only affects the dynamic accuracy of the mold, but also relates to whether the mold can work normally. Therefore, in mold design, while meeting the strength requirements, the stiffness of the mold should be ensured, and additional deformation caused by improper processing should also be avoided during manufacturing.

　　2. The production cycle of a mold refers to the time it takes from receiving the order task of the mold to delivering qualified molds after mold trial evaluation. Currently, mold using enterprises require the production cycle of the mold to be shorter and shorter. Therefore, the length of the mold production cycle is one of the comprehensive indicators to measure the production capacity and technical level of the mold enterprise, and also relates to whether the mold enterprise has a foothold in fierce market competition. The length of the mold production cycle is also a measure of a country's level of mold technology management. The main factors affecting the mold production cycle include: ① the standardization level of mold technology and production; ② The degree of specialization of mold enterprises; ③ The advanced level of mold production technology; ④ The operational management level of mold production.

　　3. The production cost of molds refers to the total amount of expenses paid by enterprises for the production and sales of molds. The production cost of molds includes raw material costs, purchased parts costs, outsourced parts costs, equipment depreciation costs, operating expenses, etc; In terms of nature, it can be divided into production costs, non production costs, and external production costs. Generally speaking, mold production costs refer to the production costs directly related to the mold production process. The main factors affecting the production cost of molds include: ① the complexity of the mold structure and the level of mold function; ② The accuracy of the mold; ③ Selection of mold materials; ④ Mold processing equipment; ⑤ The standardization level of molds and the specialization level of enterprise production.

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