Custom Nylon Chair Feet Base Manufacturers

How to ensure the precision level of the mold (such as IT5-IT8) for the complex structure of the nylon 5-star foot of the office chair (such as the curvature of the foot and the accuracy of the connection hole)? Is a multi-slide mold or hot runner technology used?

Multi-dimensional strategy for mold precision assurance
High-precision design and simulation
In the mold design stage, high-precision design solutions are the primary link to ensure mold precision. Zhejiang Lubote Plastic Technology Co., Ltd. adheres to the core values ​​of innovative design. Its professional design team uses advanced 3D modeling software, such as UG, Pro/E, etc., to accurately model the nylon 5-star foot of the office chair. Through these software, the geometric features of complex structures such as the curvature of the foot and the connection hole can be accurately captured, and the design error can be controlled within a very small range.
At the same time, with the help of finite element analysis (FEA) technology, the stress and deformation of the mold during the injection molding process are simulated. By analyzing the performance of the mold under different working conditions, the design solution is optimized in advance to avoid mold precision problems caused by unreasonable design. For example, when designing the curvature of the legs, the curvature parameters are adjusted by simulating the injection pressure and cooling shrinkage process to ensure that the curvature of the legs after molding meets the design requirements and has good mechanical properties during use. This design optimization based on simulation analysis can effectively improve the initial design accuracy of the mold and lay the foundation for subsequent manufacturing links.
Advanced processing equipment and technology
In the mold manufacturing process, advanced processing equipment and technology are the key to ensuring mold accuracy. Equipped with advanced production equipment, high-precision CNC machine tools such as five-axis linkage machining centers are used in mold processing. This equipment can achieve high-precision processing of complex surfaces. For the curvature processing of the legs of the nylon 5-star foot mold of the office chair, it can achieve extremely high precision and ensure the consistency and accuracy of the curvature.
In terms of connecting hole processing, special processing technologies such as EDM and wire cutting are used. EDM can process high-precision small holes on hard mold materials, and the processing accuracy can reach the micron level, meeting the strict requirements of connecting hole accuracy. Slow wire cutting can ensure the surface roughness and dimensional accuracy of the hole wall, and avoid affecting the mold accuracy and product quality due to uneven hole wall or dimensional deviation. Through these advanced processing equipment and processes, the manufacturing accuracy of the mold can be controlled within the IT5-IT8 level range to ensure the dimensional accuracy and surface quality of the mold.
Strict process control and testing
In addition to the design and manufacturing links, strict process control and testing are also important means to ensure the accuracy of the mold. Zhejiang Lubote Plastic Technology Co., Ltd. has established a complete testing system, and multiple process tests will be carried out during the mold processing. For example, after rough processing, the key dimensions of the mold are preliminarily tested using a three-coordinate measuring machine to promptly detect and correct the processing deviation. After the fine processing is completed, a comprehensive test is carried out again to ensure that the dimensional accuracy, form and position tolerances of the mold meet the design requirements.
At the same time, the company adopts a modern management model to strictly control the quality of the mold manufacturing process. From raw material procurement to mold assembly, each link has clear quality standards and operating specifications. Through real-time monitoring and data recording of the production process, potential quality problems can be discovered in a timely manner and corrective measures can be taken. For example, the hardness and purity of mold steel are strictly tested to ensure the stability of raw material quality; during the mold assembly process, the matching accuracy of each component is checked to ensure the overall accuracy of the mold. This strict process control and detection mechanism can effectively ensure that the mold accuracy reaches the expected goal.
Application analysis of multi-slider mold and hot runner technology
Application of multi-slider mold
The structure of the nylon 5-star foot of the office chair is complex, with multiple undercuts, lateral core pulling and other structures. The use of multi-slider molds can effectively solve these molding problems and ensure mold accuracy. The multi-slider mold realizes the molding of complex structures through multiple movable slider mechanisms. In the nylon 5-star foot mold of the office chair, the undercut structure of the connection between the support leg and the main body, as well as the lateral molding of the connection hole, can be completed by setting the corresponding slider.
The professional production and technical team of Zhejiang Lubote Plastic Technology Co., Ltd. has rich experience in mold design and manufacturing, and can reasonably design multi-slider molds according to the structural characteristics of the product. During the design process, the parameters such as the stroke and core pulling force of the slider will be accurately calculated to ensure the reliability and stability of the slider action. At the same time, by optimizing the guide mechanism and locking mechanism of the slider, the positioning accuracy of the slider is improved to avoid the decrease in mold accuracy caused by the slider movement error. For example, high-precision guide rails and wear-resistant blocks are used to reduce friction and wear during the movement of the slider and ensure the repeated positioning accuracy of the slider. Through the application of multi-slider molds, not only can the complex structure of the nylon 5-star foot seat of the office chair be formed, but also the mold accuracy and product quality can be effectively guaranteed.
Application of hot runner technology
Hot runner technology has the advantages of improving molding efficiency and ensuring product quality in injection molding, and is also of great significance for the production of nylon 5-star foot seats for office chairs. Hot runner technology keeps the plastic melt between the injection molding machine nozzle and the mold cavity in a molten state, reduces the condensation of the casting system, and improves material utilization and production efficiency. Because the hot runner system can accurately control the melt temperature and pressure, the flow of the plastic melt in the mold cavity is more uniform, which helps to improve the molding accuracy and surface quality of the product.
In the process of pursuing product quality and production efficiency, hot runner technology is likely to be used to produce nylon 5-star foot seats for office chairs. In the design of the hot runner system, the position and number of the hot runner nozzles will be reasonably arranged according to the product structure and injection molding process requirements to ensure that the plastic melt can evenly fill the mold cavity. At the same time, an advanced temperature control system is used to accurately control the temperature of each part of the hot runner to avoid defects such as product deformation and shrinkage caused by uneven temperature. For example, by using thermocouples and temperature controllers to monitor the hot runner temperature in real time, and automatically adjust it according to actual conditions, to ensure that the melt temperature is stable within the appropriate range. Through the application of hot runner technology, it is possible to improve production efficiency while ensuring the molding accuracy and quality of the nylon 5-star foot of the office chair.