| dc.rights.license | All rights reserved | en_US |
| dc.contributor.advisor | Nieves Castro, Rafael A. | |
| dc.contributor.author | Fernández Burgos, David A. | |
| dc.date.accessioned | 2021-03-18T15:15:42Z | |
| dc.date.available | 2021-03-18T15:15:42Z | |
| dc.date.issued | 2020 | |
| dc.identifier.citation | Fernández Burgos, D. A. (2020). Plc modification for fill and close stopping sequence improvement [Unpublished manuscript]. Graduate School, Polytechnic University of Puerto Rico. | en_US |
| dc.identifier.uri | http://hdl.handle.net/20.500.12475/1091 | |
| dc.description | Design Project Article for the Graduate Programs at Polytechnic University of Puerto Rico | en_US |
| dc.description.abstract | From November 2020 to January 2021,
an analysis was made looking for the best way to
increase the yield of the machines in charge of the
dry process when making a contact lens. In this
analysis, it was discovered that there was
overwhelming evidence that the biggest offender was
curing losses. Curing losses are defined as all molds
out of the curing ovens divided by the amount picked
up by the CUA (Control Unit Acquisition). An
analysis of the PLC code that corresponded to the
affected areas determined that best course of action
to save the greatest number of molds possible and
reduce or possibly eliminate curing losses. After
implementation of only a plc code modification an
expected improvement on the curing losses should be
between 1-2%.
Key terms ⎯ contact lenses, fill & close, PLC,
SCADA | en_US |
| dc.language.iso | en_US | en_US |
| dc.publisher | Polytechnic University of Puerto Rico | en_US |
| dc.relation.ispartof | Manufacturing Engineering; | |
| dc.relation.ispartofseries | Winter-2020; | |
| dc.relation.haspart | San Juan | en_US |
| dc.subject.lcsh | Programmable logic devices | en_US |
| dc.subject.lcsh | Programmable controllers | en_US |
| dc.subject.lcsh | Polytechnic University of Puerto Rico--Graduate students--Research | |
| dc.subject.lcsh | Polytechnic University of Puerto Rico--Graduate students--Posters | |
| dc.title | Plc Modification for Fill and Close Stopping Sequence Improvement | en_US |
| dc.type | Article | en_US |
| dc.rights.holder | Polytechnic University of Puerto Rico, Graduate School | en_US |
