【作者】 陈伟；

【导师】 曾孝宇； 张建国；

【作者基本信息】 天津科技大学 ， 机械设计及理论， 2002， 硕士

【摘要】 玻璃作为一种包装材料具有很多不可替代的优越性，表现在原材料丰富、加工方便、价格低廉、化学性质稳定、不与包容物发生反应等方面，因而广泛地应用于食品、饮料和化工产品等的包装上。而目前国内玻璃制品的生产方式却制约了玻璃行业的发展。现有玻璃瓶型和玻璃模具的设计工作，还完全依靠手工进行，使得产品的设计周期较长、成本较高、精度难以保证，因而降低了玻璃材料的竞争力。 玻璃瓶的瓶型设计是玻璃瓶生产的第一个环节。在进行瓶型设计时，不仅要求外形美观、满足盛装物品的各种要求，而且对瓶子的容积也有较严格的限制。这就使得设计人员在设计过程中需采用分段测量累加计算的方法反复计算瓶子的容积，这种繁琐的重复性工作浪费了设计人员宝贵的时间和精力，对于企业来说就意味着失去市场。而利用计算机进行玻璃瓶型的设计则会有很多优越性，比如修改方便、计算快速准确，而且用计算机确定的瓶型结构，描述更准确。 本文利用Visual C++6.0和AutoCAD 2000的二次开发工具ObjectARX 2000开发了用于玻璃回转体瓶型的CAD系统。该系统具有的平面图形、立体图形以及设计结果模拟展示功能，可以使设计者快速、直观地观测到设计结果；另外该系统所具有的容积计算功能，可快速准确地计算出瓶子容积，从而有效地缩短了瓶型的设计周期，提高了设计精度，降低了成本。 由于采用了面向对象的程序设计思想，对瓶型的特征数据进行了封装，因而，可以在此瓶型设计的基础上利用数据共享很方便地开发出玻璃模具设计的功能，从而完成从玻璃瓶型到玻璃模具设计的所有工作。更多还原

【Abstract】 As a packing material, glass has many advantages that cannot be substituted, such as having plenty of raw material, being produced easily, low price, stable chemical quality, not reacting with its content and so on. So it is widely used in the packing of food, beverage and chemical things. But the producing way of glassware in our country hampers the development of glass industry. Now both design of glassware and design of glassware’s module have been done by manual working. It prolongs the design period, augments the cost and makes it difficult to ensure the precision; therefore it weakens the glass competition strength as a packing material.The bottle design is the first phase of the glass bottle production. In this phase, designer has to make not only the bottle beautiful and fit to contain specific things but also its cubage meet some strict demand. Thus designer has to calculate the bottle’s volume repeatedly by dividing the bottle into many small parts, measuring the diameters of each parts one by one, calculating the volume of them approximately by treating them as cylinders, and finally summing up those volume to get the total volume of the bottle. Such boring and repeated work wastes the precious time of designer and may mean losing market to the enterprise. Designing with the computer can bring many advantages such as modification easily, calculation rapidly and exactly, and description the configuration precisely.This paper introduces a glassware design CAD system programmed with Visual C++ 6.0 and ObjectARX 2000 SDK. This system can show the plane and solid drawings of the bottle and also can simulate the finished product appearance, thus the designer can get the design bottle immediately. Besides these this system can calculate the cubage of the bottle rapidly and exactly. So it can shorten the design period, reduce the cost and improve the precision effectively.As the thinking of Object Oriented Programming is applied in this system, the characteristic data that describe the shape of glass bottles are packed in each class respectively. Therefore it is very convenient to realize the data share and add module design function to this system. Then it can finish all the work from glassware design to module design.更多还原