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首页> 外文会议>2016 IEEE 37th International Electronics Manufacturing Technology amp; 18th Electronics Materials and Packaging Conference >Activity on arrow (AOA) network model to enable mold productivity optimization
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Activity on arrow (AOA) network model to enable mold productivity optimization

机译：箭头活动（AOA）网络模型可实现模具生产率的优化

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摘要

This paper is to discuss an engineering optimization method to fully utilize the mold equipment and deliver its maximum productivity yet no compromising on both product and equipment quality. A network model, which using activity on arrow (AOA), is constructed for the activities in the entire molding process starting with loading till offloading of the magazine. The network becomes complicated when 2 mold presses are in production mode simultaneously where only a universal toolset, such as preheater and degator is required to accommodate both presses concurrently. In this case, slack times often happen where certain activities need to wait for the activities to complete before it starts. This non-productive waiting time is one of the seven wastes in lean manufacturing concept. A “dummy” is used to indicate as a precedence activity of another activity in this network model. By considering all the activities time of the entire network, the “critical path” can be identified. Critical path illustrate focus area of the entire mold process which reflecting the opportunity for productivity improvement. By tabulating down the time for each activity in the critical path, a decision can be made when the opportunity is identified. The model can be further expanded to 3 presses model where the critical path and the slack time vary accordingly. A simple program are developed with entry data of the mold equipment capability and process parameter to ease the calculation. The output of the program will present the critical path and expected crashing area.
机译：本文将讨论一种工程优化方法，以充分利用模具设备并提供最大的生产率，同时又不影响产品和设备的质量。建立了一个网络模型，该模型使用箭头上的活动（AOA）从加载到弹匣卸载到整个成型过程中的活动。当两台模具压力机同时处于生产模式时，仅需通用工具集（例如预热器和温度降低器）即可同时容纳两台压力机，则网络变得复杂。在这种情况下，松弛时间通常发生在某些活动需要在开始之前等待活动完成的地方。这种非生产性的等待时间是精益生产概念中的七种浪费之一。 “虚拟”用来表示此网络模型中另一个活动的优先活动。通过考虑整个网络的所有活动时间，可以确定“关键路径”。关键路径显示了整个模具过程的重点领域，反映了提高生产率的机会。通过列出关键路径中每个活动的时间，可以确定机会时做出决定。该模型可以进一步扩展到3压机模型，其中关键路径和松弛时间会相应变化。使用模具设备功能和工艺参数的输入数据开发了一个简单的程序，以简化计算。程序的输出将显示关键路径和预期的崩溃区域。

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