本科论文目录摘要Abstract.....引言1塑料管材挤出机.21.1挤出机介绍.21.2挤出机分类1.3挤出机的现状及研究趋势31.4研究内容2塑料管材挤出机整体设计.…2.1塑料管材挤出机工作原理及其特性2.2塑料管材挤出机主要技术参数和规格2.3塑料管材挤出机结构设计构思.73塑料管材挤出机主要零部件设计3.1挤出机电机的选择…83.2带传动设计…83.3齿轮减速器设计103.4螺杆设计.223.5机筒设计…283.6料斗设计.304塑料管材挤出机控制系统设计314.1加热系统314.2电气控制系统315数字化建模结论37参考文献38致谢40本科论文摘要在塑料制品成型加工工业中，塑料挤出机是其中重要组成部分之一，应用广泛，具有广阔的发展前景。挤出作为一种聚合物加工技术出现在十九世纪初，通过连续加热、加压使塑料成为熔融状态，然后通过机头挤出成型的技术。本文介绍了一种热塑性挤出机的设计步骤、工作原理和结构设计。本设计的目的是通过三维建模的方式直观的展示塑料管材挤出机的传动方式，结构特点，利用学生自制的机器介绍聚合物加工技术，介绍制造原理。作为工业上使用的塑料管材挤出机，在设计过程中，需要选择挤出机挤出所用的原材料，以此来进行挤出机设计。除了加压、熔融、泵压等一系列通用工艺外，还要考虑到最重要的成本效益原则。通过合理的结构设计、材料选取，减少螺杆和机筒的损耗，提高效益。关键词：挤出机；设计；三维建模；塑料本科论文AbstractThe plastic extruder is one of the important parts in the plastic productsforming and processing industry.Extrusion as a polymer processing technologyappeared in the early 19th century,through continuous heating,pressure to makeplastic into a molten state,and then through the head extrusion moldingtechnology.This paper introduces the design procedure,working principle and structuredesign of a thermoplastic extruder.The purpose of this design is to intuitivelydisplay the transmission mode and structural characteristics of plastic pipeextruder by means of 3D modeling,introduce polymer processing technologyand manufacturing principle by using the machine made by students.As a plastic tube extruder used in industry,it is necessary to select the rawmaterial used by the extruder in the design process so as to carry out the designof the extruder.In addition to a range of common processes such aspressurization,melting and pumping,the most important cost-benefit principlemust be considered.Through reasonable structural design and material selection,the loss of screw and barrel can be reduced and the benefit can be improved.Keywords:extruder;design;three-dimensional modeling;plastic