矿泉水瓶瓶坯塑料模具设计-毕业论文（设计）.docVIP

PAGE l 内容摘要 为了保证制造出理想的注射塑件，在这矿泉水瓶瓶坯塑料模具设计中必须考 虑塑件的成型工艺。瓶坯的成型工艺性与模具设计有直接的关系，只有塑件的设计能适应成型工艺要求，才能设计出合理的模具结构。 塑件的材料是聚对苯二甲酸乙二醇酯。由于此塑件必须大批量生产并且塑件的外观为较长的壳体，因此该设计采用新型的热流道技术和点浇口的单分型面结构形式。考虑到矿泉水瓶瓶坯开口端有一段螺纹结构，因此需要设计侧向分型抽芯机构，该机构由斜导柱与滑块共同实现。其优点在于简化模具结构，大大降低了模具的制造成本。最后对模具与注射机的有关尺寸进行了校核，通过对模具的设计计算表明该设计能满足塑件的质量和加工工艺要求。 通过对这矿泉水瓶坯塑料模具的设计，从而对注塑模具有一个初步的认识，注意到设计中的某些细节问题，了解模具结构及工作原理。 关键词：PET 注射模具 侧向抽芯 推出机构 三维造型 Abstract An injection mold for the mineral water bottle perform is designed in this paper. Plastic material is PET.This is due to the high volume production of plastic parts and the exterior of plastic parts shell for longer, so the design uses a new type of hot runner technology and the single surface structure of the pin-point gate. Taking into account thread structure in the open end of the mineral water bottle perform, so it is need design lateral sub-type core-pulling mechanism, which is achieved by both oblique columns and slider guide. The advantage of the core-pulling mechanism is to simplify the mold structure and reduce the manufacturing costs greatly. The dimension of the mold and the pressure machine has been checked finally. This design shows that the mold can achieve the quality and processing demands of the product. Through this design, may to cast the mold to have a preliminary understanding, notes in the design certain detail question, understands the mold structure and the principle of work. KEY WORDS: PET Injection mold Side core pulling Three-dimensional modeling 目 录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc291407672 内容摘要……………………………………………………………………………………… PAGEREF _Toc291407672 \h I HYPERLINK \l _Toc291407673 Abstract……………………………………………………………………………………… PAGEREF _Toc291407673 \h II HYPERLINK \l _Toc291407675 前 言………………………………………………………………………………………… PAGEREF _Toc291407675 \h 1 HYPERLINK \l _Toc291407676 第一章 塑件的特性与工艺性 PAGEREF _Toc291407676 \h 2 HYPERLINK \l _Toc291407677 1.2 产品工艺性与结构分析 ………………………………………………………………… PAGEREF _Toc291407677 \h 2 HYP