How to optimize the flow channel design to improve the performance of the roadblock rotomolding mold?

In the design process of the barricade rotomolding mold, the flow channel design plays a vital role. As the channel for the plastic raw material to enter the mold, its shape, size and layout directly affect the flow state and filling effect of the raw material in the mold. If the flow channel design is unreasonable, it may cause the raw material to flow poorly in the mold, resulting in defects such as bubbles and shrinkage marks, which seriously affect the quality and appearance of the roadblock product. Therefore, optimizing the flow channel design is one of the important means to improve the performance of the roadblock rotomolding mold.

Core elements and considerations of flow channel design
Flow channel shape: The shape design of the flow channel should follow the flow characteristics of the raw material to ensure that the raw material can smoothly enter all parts of the mold. Generally speaking, the flow channel should be designed to be gradually tapered so that the flow rate can be gradually reduced during the flow of the raw material to avoid excessive shear force and friction. At the same time, the corners of the flow channel should be designed as rounded corners or transition shapes to reduce the stagnation and eddy current phenomenon of the raw material at the corners.
Flow channel size: The size design of the flow channel should be determined according to the flow rate of the raw material and the size of the mold. Too large a flow channel size will cause the raw material to stay in the flow channel for too long, increasing the risk of raw material degradation; while too small a flow channel size may limit the flow rate of the raw material, resulting in uneven filling. Therefore, designers need to reasonably control the size of the flow channel while ensuring the smooth flow of the raw material.
Flow channel layout: The layout design of the flow channel should take into account the overall structure of the mold and the shape of the product. Reasonable flow channel layout can ensure that the raw material is evenly distributed in the mold to avoid local overheating or uneven cooling. The layout of the flow channel should also take into account the filling sequence and filling pressure of the product to ensure that the product can be filled smoothly and achieve the expected physical properties.

Methods and practices for optimizing flow channel design
Simulation analysis: With the continuous development of computer technology, simulation analysis has become an important means to optimize flow channel design. By using advanced simulation analysis software, designers can simulate the flow process and filling effect of raw materials in the mold, thereby predicting possible defects and problems. Based on the simulation results, designers can adjust and optimize the flow channel design to improve the performance of the mold and the quality of the product.
Experimental verification: In addition to simulation analysis, experimental verification is also an important method for optimizing flow channel design. By making actual molds and conducting trial mold experiments, designers can intuitively observe the flow state and filling effect of raw materials in the mold. According to the experimental results, designers can further adjust and optimize the flow channel design to achieve the best results.
Experience accumulation: In the long-term mold design and production process, designers will accumulate rich experience and knowledge. These experiences and knowledge are of great guiding significance for optimizing flow channel design. By drawing on previous successful cases and summarizing lessons learned, designers can more accurately judge the rationality and feasibility of flow channel design, thereby improving the performance of the mold and the quality of the product.

Optimizing the flow channel design can not only ensure that the plastic raw materials flow evenly in the mold, reduce the generation of defects such as bubbles and shrinkage marks, but also improve the filling efficiency of the mold and product quality. Reasonable flow channel design can also reduce the manufacturing cost and maintenance cost of the mold and improve production efficiency. Therefore, optimizing the flow channel design is one of the important ways to improve the performance of roadblock rotational molding molds.