Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/2017

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dc.contributor.authorSilva, Luís F.-
dc.contributor.authorLima, Mário-
dc.contributor.authorCarvalho, Helder-
dc.contributor.authorRocha, A. M.-
dc.contributor.authorFerreira, Fernando-
dc.contributor.authorMonteiro, João L.-
dc.contributor.authorCouto, Carlos-
dc.date.accessioned2005-06-08T10:05:48Z-
dc.date.available2005-06-08T10:05:48Z-
dc.date.issued2003-
dc.identifier.citation"Transactions of the institute of measurement and control". ISSN 0142-3312. 25:5 (Dec. 2003) 418-431.eng
dc.identifier.issn0142-3312-
dc.identifier.urihttp://hdl.handle.net/1822/2017-
dc.description.abstractSewing is one of the most important processes in the apparel industry for the production of high-quality garments. Although some research and improvements have been carried out in this area, the sewing process has remained almost unchanged throughout the years, staying largely dependent on the operator skills to set up sewing parameters and to handle the fabrics being sewn. Slight changes in sewing machine settings can influence the quality of seams, as well as sewing operation time. To avoid these empirical settings, reduce set-up times and improve machine performance, flexibility and sewing quality, an electromagnetic actuated presser foot, based on the use of a proportional force solenoid, was developed and implemented on an industrial overlock sewing machine. The compression force and displacement waveforms from the presser foot bar will be studied in this paper, as well as the admiss ible displacement limits used to monitor (on- and offline) fabrics’ feeding efficiency. Following this analysis, a new research programme was established to enable a PC-based open- and closed-loop control of the presser foot system. This paper also highlights these recent developments, presenting and discussing, in detail, a PID closed-loop control strategy. The obtained results show that the presser foot closed-loop control has improved performance for a wide speed variation range.eng
dc.language.isoengeng
dc.publisherThe Institute of Measurement and Controleng
dc.rightsopenAccesseng
dc.subjectSewingeng
dc.subjectPreser-footeng
dc.subjectFeeding systemeng
dc.subjectMonitoringeng
dc.subjectControleng
dc.subjectfeeding efficiency monitoringpor
dc.subjectoverlock sewing machinepor
dc.subjectpresser foot closed-loop controlpor
dc.subjectpresser foot systempor
dc.subjectelectromagnetic actuated presser footpor
dc.titleActuation, monitoring and closed-loop control of sewing machine presser footeng
dc.typearticleeng
dc.peerreviewedyeseng
oaire.citationStartPage419por
oaire.citationEndPage432por
oaire.citationIssue5por
oaire.citationVolume25por
dc.identifier.doi10.1191/0142331203tm0097oapor
dc.subject.wosScience & Technologypor
sdum.journalTransactions of the Institute of Measurement and Controlpor
Appears in Collections:CAlg - Artigos em revistas internacionais/Papers in international journals
DET/2C2T - Artigos em revistas internacionais com arbitragem científica

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