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The design and manufacture of mass production equipment for a pencil with a seed

机译:设计和制造带有种子的铅笔的批量生产设备

摘要

Autosprout is the mass manufacturing equipment envisioned to produce Sprout, a pencil with a seed. This pencil concept was developed by MIT students a successful round of funding and first production run through Kickstarter. The goals for Autosprout are to fully automate the manufacturing process, and to reduce the manufacturing costs from eighty cents per pencil to less than thirty, while also producing a completely assembled pencil every five seconds. The original assembly process was slow and required a lot of manpower. However, it laid a foundation to design the automated process described in this thesis. The new system will feature two carousel systems. The first carousel will load the cedar pencil, cut a shoulder using a specially designed router, and finally add a dab of glue around the shoulder. The second carousel will load a pill capsule body and fill it with soil and two to three seeds. At the end of each carousel process the pill capsule and pencil will come together and the capsule will be placed onto the shoulder and the glue will hold it in place. Before the capsule is loaded into the carousel, it must be sorted and properly aligned. Models for a vibratory feeder were first designed and tested, but, due to the inconsistent performance of the models, an industrial vibratory feeder was purchased and modified. The modification consists of a chute leading to a vacuum system that removes the capsule from the feeder, rotates, and finally loads the capsule into the carousel by switching a valve making the vacuum into a stream of high air pressure. A similar system will be used for removing seeds from a hopper and placing them in the capsule.
机译:Autosprout是设想用于生产Sprout(带有种子的铅笔)的大规模生产设备。这种铅笔的概念是由麻省理工学院的学生开发的,它在Kickstarter上获得了成功的一轮资助并首次投入生产。 Autosprout的目标是使制造过程完全自动化,并将制造成本从每支铅笔八十美分降低到少于三十美分,同时还每五秒钟生产一次完全组装好的铅笔。最初的组装过程很慢,需要大量人力。但是,它为设计本文描述的自动化过程奠定了基础。新系统将配备两个轮播系统。第一个轮播将加载雪松铅笔,使用专门设计的router刨机切开肩膀,最后在肩膀周围添加一点胶水。第二个传送带将装入药丸胶囊主体,并用土壤和两到三粒种子填充。在每个轮播过程结束时,药丸胶囊和铅笔将合在一起,并将胶囊放在肩膀上,胶水将其固定在适当的位置。在将胶囊装入圆盘传送带之前,必须将其分类并正确对齐。最初设计和测试了振动给料机的模型,但由于模型的性能不一致,因此购买并修改了工业振动给料机。修改包括一个通向真空系统的斜槽,该真空系统通过将阀门转换成使真空变为高压气流的阀,将胶囊从进料器中取出,旋转并最终将胶囊装载到转盘中。类似的系统将用于从料斗中取出种子并将其放入胶囊中。

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