复杂螺杆的参数化设计CAD

Parameterized Design CAD of the Complex Screw

双螺杆塑料挤出机中的螺杆较为复杂,螺杆的结构和参数对挤出过程起决定作用.详细分析了螺杆的主要结构形式和螺纹参数的确定方法.以VB为工具研究开发的螺杆参数化设计系统可根据挤出机的用途、产量、原料等使用要求,快速实现双螺杆参数化设计CAD过程,并能方便地根据某些特别要求做出局部调整.

The screw of twin-screw plastic extruder is complex, its structure and parameters determine extrusion process. The main configuration and technical parameter of the screw are analyzed. Adopting Visual Basic program language, parameterized design system is exploited based on operation requirements of the use, output, extrusion material, and it can realize fleetly the CAD process of twin-screw parameterized design, and can make the partial adjustment expediently for certain special request.