In recent years, especially the introduction of some advanced foreign mold design and manufacturing technology, Chinese and foreign technology has been effectively combined, and its multi-station plastic molds have developed rapidly. For example, mobile phones, notebooks, printers and other plastic products, their products use hot runner molds and plastics. Multi-station cavity mold, up to dozens of products in one injection molding, for efficient production. On the other hand, the transformation of the design and manufacturing technology and application of metal precision stamping dies has been developed from the previously scattered single-step stamping and multi-step stamping die forming to the current multi-station continuous stamping die automation, which is mainly analyzed and discussed here. Manufacturing technology and development status of multi-station precision stamping die at home and abroad. Multi-station continuous precision stamping metal molds are mainly composed of mold base, concave mold, punch, spring pressure discharge plate, strip guide, step precision control structure, mold safety protection mechanism, etc. These mold parts have strict precision requirements, such as stamping. The thimble and product forming die hole precision is accurate to 2μm, the position precision of continuous precision stamping die is controlled at 5μm, the parallelism of forming die is controlled within 0.01mm, and the continuous precision die is designed by means of CAD, CAM design, analysis, programming and so on. The structure has been serialized, standardized, standardized, and combined with advanced numerical control equipment such as CNC lathes, machining centers, internal and external round grinding, slow wire cutting, electric spark (EDM), coordinate grinding, etc., to produce qualified mold parts, will The mold parts are assembled and debugged. For example, a computer main body casing is completed through a series of continuous processes: up and down punching, punching, trimming, bending, shaping and the like. Some metal stamping product samples, in the early stage, product development, process equipment preparation, production and commissioning need to closely cooperate, therefore, through multi-station continuous precision stamping metal mold for batch forming products production, with high efficiency, stable quality, The advantage of a short cargo cycle. Multi-station molds are designed and developed according to product complexity. In the modern market, especially electronic products, the update cycle is short, the market competition is fierce, the customer pursues higher cost performance and shorter delivery cycle, so the company requires designers to complete the design, processing and equipment debugging in the shortest time. The department completes the processing, assembly and commissioning at the fastest speed, and delivers qualified products to the users. Here, first, the designer not only needs to understand the processing technology, assembly process, but also has professional software knowledge; second, the manufacturing process and equipment requirements are strict. Processing must be reasonably configured according to the accuracy requirements of the drawings. For example, the key mold components must be heat treated, and have high hardness. The thimble and punching end must be sharply processed to ensure dimensional accuracy and shape tolerance requirements. Third, mold commissioning personnel requirements specialization. In the process of multi-station mold debugging or production of products, the product is prone to burrs or flashing, and the production process is prone to punching, punching or fracture. Therefore, the commissioning personnel are required to have relevant correlations in the production process. Problems, faster problem analysis, processing and problem solving. Since China's accession to the WTO, domestic and foreign markets have been relatively open, and the product market is highly competitive, such as computers, automobiles, aviation, and electronic communication equipment. These products are mostly prominent in many metal parts, and their finished products are multi-station. Continuous precision die stamping is realized, but some continuous stamping dies have some gaps compared with foreign countries such as Germany, Canada, and the United States. Some high-end precision molds still rely on import purchase, which requires the enterprise or leadership to play talents. Advantages, innovation, learning, breakthroughs in multi-station precision stamping die design and manufacturing technology. The whitening component extracts a tyrosinase inhibitor such as ferulic acid or ligustrazine and a free radical scavenger such as polyphenol from a plant to inhibit melanocyte production and achieve a whitening effect. Whitening Agent Jinan huijinchuan trading Co. LTD , https://www.hjcchemical.com
Guilin Jinge Electrical and Electronic Materials Technology Co., Ltd. Technology Department Wen Delin Multi-station continuous precision stamping die features
Difficulties in R&D and manufacturing technology of multi-station continuous stamping die
Development trend of multi-station continuous stamping die