Description
High-precision plastic molds have relatively high design requirements, and the complexity of mold design is also higher than that of ordinary molds. Therefore, before confirming the start of construction, all processes must be determined, so that there will be no confusion during processing. problems occurred during the process. So what issues should be paid attention to when designing high-precision plastic molds? Engineers from Huanke Precision will take everyone to understand.
1. The precision injection mold design engineer conducts a feasibility analysis on the plastic product drawings provided by the customer, determines the mold structure, and strictly regulates the product design process. This is the most important step. Pay attention to completing it carefully and conscientiously. This will also save a lot of time for the next step of work.
2. Analyze the product expansion diagram according to the precision injection mold design, and prepare various materials required for precision injection mold design. Preparing materials based on product expansion diagrams can improve efficiency and accuracy of material preparation, reduce errors, and facilitate the rapid completion of design work.
3. Determine the mold opening direction and parting line position of the high-precision plastic mold; each plastic product needs to determine its mold opening direction and parting line at the beginning of design to ensure that the core slider is minimized mechanism to reduce the impact of the parting line on the appearance. After determining the mold opening direction of the high-precision plastic mold, try to make the product’s reinforcing ribs, bayonet, bulges and other structural designs consistent with the mold opening direction to avoid core pulling, reduce seams, and extend the molding time.
4. After determining the mold opening direction of the high-precision plastic mold, you can select an appropriate parting line to avoid undercuts in the mold opening direction and improve the appearance and performance of the mold.
5. Properly adjust the draft angle of high-precision plastic molds to avoid damage such as white edges, deformation, and cracks on the top of the product. When designing products with deep cavity structures, the slope of the outer surface should be greater than the slope of the inner surface as much as possible to ensure that the core of the plastic injection mold will not move, thereby obtaining a uniform product wall thickness while ensuring material strength and product opening time.
6. Each different plastic has a certain wall thickness range, generally 0.54 mm. When the wall thickness exceeds 4 mm, it will cause problems such as long cooling time and shrinkage of plastic products. In this matter, you should consider changing the product. structure. Uneven wall thickness can cause surface shrinkage. and air holes and weld lines. In addition, the rational use of reinforcement ribs can increase the stiffness of the product and reduce deformation.
The above are the issues that need to be paid attention to when designing and manufacturing high-precision plastic molds. Whether designing or processing high-precision molds is a very technical project, so you must find a professional mold design and development company. Shenzhen Huanke Precision Manufacturing Co., Ltd. is a company specializing in mold development, design and manufacturing, product injection molding and other services. We have a professional mold design team and high-precision mold manufacturing equipment imported from Germany and Japan. The businesses involved include: mold development and manufacturing, plastic mold design, mold injection processing, injection molding processing and other services. Our services cover shell injection molding processing and precision gear mold injection molding production in the automotive field, medical equipment field, beauty instrument field, 3C digital field, electronic equipment and other industries.