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橡塑技术与装备（塑料） CHINA RUBBER/PLASTICS TECHNOLOGY AND EQUIPMENT (PLASTICS)

北京 ：化工出版社，2017。 ［4］ 刘晓梅 . 汽油机缸体压铸模设计［J］，桂林 ：模具工业，1998
［3］ 文根保，文莉，史文 .“ 托板 ” 压铸模的设计［J］，深圳 ：模 年第 10 期 :35-37.
具制造，2009(8):70-75.

Structure design of injection mold for medical sucker

Yuan Kaibo, Wen Genbao
(AVIC Aerospace Life-Support Industries Co. LTD., Xiangyang 441002, Hubei, China)
Abstract: Through the analysis of the shape of medical sucker, it is found that there are two triangular
holes and 8×Φ2 mm×30 mm holes in the shape of medical sucker. The cores of the two kinds of holes are
perpendicular to each other, and interference occurs when core pulling is carried out. In order to improve
the machining efficiency, the injection mold adopts three-mold structure with one mold and two cavities.
For forming the two kinds of holes, the core pulling mechanism is no doubt to be used. In order to avoid the
interference of core pulling movement, the method is to avoid each other. Namely the core pulling of 8×Φ2
mm×30 mm holes should be carried out before the triangular hole core, and reset after forming the triangular
hole core. If the mechanical way is used to avoid, its structure is very complex. The core pulling mechanism of
oil cylinder is used for core pulling with 4 triangular holes, and the core pulling of two cavities of 8×Φ2 mm×30
mm holes is inclined guide pillar slider core pulling mechanism. Through the programming of computer or
single board computer, it is only necessary to be able to control two kinds of core pulling movement: That is
cores of 8×Φ2 mm×30 mm holes are pulled out first → cores of triangular holes are pulled out later → cores of
triangular holes are reset first → cores of 8×Φ2 mm×30 mm holes are reset later. In this way, the core pulling
and demoulding of the medical sucker can be carried out smoothly.
Key words: medical sucker; shape analysis; hole element; motion interference element; core pulling
mechanism
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Samyang 公司将致力于开发生物降解聚碳酸酯
Samyang will focus on the development of biodegradable polycarbonate

Samyang 公司 5 月 25 日宣布，它将同时开发一种基于异山梨酯的可生物降解聚碳酸酯和基于该聚碳酸酯的
商用组件。
目前，聚碳酸酯的物理性回收在成本上没有优势，使用后一直被掩埋或焚烧。这些处理方法导致了有毒物质
的产生和环境污染。
Samyang 是第一家成功地自行生产聚碳酸酯的韩国公司。自 1991 年取得这一成就以来，该公司开发了先进
的聚碳酸酯产品，包括阻燃、透明的、和耐高温产品，以及在低温冲击强度、耐化学性等方面有了很大提高的有
机硅聚碳酸酯。
2014 年，Samyang 公司在韩国首次开发了一种商业化异山梨醇的生产技术，并在全球范围内第二次开发。
这种淀粉基化合物是一种生物材料，能够取代双酚 A 作为聚碳酸酯的主要成分。
摘编自 “PUWORLD”
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