Developing a method for evaluating color changeover in a hot-runner multi-cavity injection mold
Quality control, which nowadays almost always involves the integration of online measurement methods into the production process, is of paramount importance for injection molding. Online pressure and temperature measurement is already widespread and essential for quality and production control. On t...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-11-01
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| Series: | Polymer Testing |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S014294182200280X |
| _version_ | 1811211546904231936 |
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| author | Dániel Török Tatyana Ageyeva Róbert Boros Ágnes Kovács József Gábor Kovács |
| author_facet | Dániel Török Tatyana Ageyeva Róbert Boros Ágnes Kovács József Gábor Kovács |
| author_sort | Dániel Török |
| collection | DOAJ |
| description | Quality control, which nowadays almost always involves the integration of online measurement methods into the production process, is of paramount importance for injection molding. Online pressure and temperature measurement is already widespread and essential for quality and production control. On the other hand, monitoring the appearance, color, or surface defects of products is less common. It is usually carried out with a camera system installed on a conveyor belt independently of the injection molding process. However, color defects in injection molded products, which are caused by the poor distribution of the colorant, are common defects that usually occur after color changeover in injection molding. Color changeover is currently not a well-controlled procedure, and it is associated with high additional costs. It also requires a large amount of material and causes extended downtime of the injection molding equipment. Color changeover can be even more complicated due to the specific design of the injection unit, the presence of static or dynamic mixers, and the hot runner system design of the molds. In this study, we develop a measurement method to monitor color change and the amount of material and time needed to clean the injection system. This method is based on digital image processing. It can be very useful in the plastic industry and can greatly help manufacturers to develop and produce more efficient injection molding systems. |
| first_indexed | 2024-04-12T05:14:37Z |
| format | Article |
| id | doaj.art-575d1a6a3f2e43fea6ec208cc1b8811d |
| institution | Directory Open Access Journal |
| issn | 0142-9418 |
| language | English |
| last_indexed | 2024-04-12T05:14:37Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Polymer Testing |
| spelling | doaj.art-575d1a6a3f2e43fea6ec208cc1b8811d2022-12-22T03:46:39ZengElsevierPolymer Testing0142-94182022-11-01115107759Developing a method for evaluating color changeover in a hot-runner multi-cavity injection moldDániel Török0Tatyana Ageyeva1Róbert Boros2Ágnes Kovács3József Gábor Kovács4Department of Polymer Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111, Budapest, Hungary; MTA-BME Lendület Lightweight Polymer Composites Research Group, Műegyetem rkp. 3., H-1111, Budapest, HungaryDepartment of Polymer Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111, Budapest, Hungary; MTA-BME Lendület Lightweight Polymer Composites Research Group, Műegyetem rkp. 3., H-1111, Budapest, HungaryDepartment of Polymer Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111, Budapest, HungaryDepartment of Biostatistics, University of Veterinary Medicine Budapest, István utca 2, H-1078, Budapest, Hungary; Department of Applied Analysis and Computational Mathematics, Eötvös Loránd University, Pázmány Péter sétány 1/C, H-1117, Budapest, HungaryDepartment of Polymer Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111, Budapest, Hungary; MTA-BME Lendület Lightweight Polymer Composites Research Group, Műegyetem rkp. 3., H-1111, Budapest, Hungary; Corresponding author. Department of Polymer Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111, Budapest, Hungary.Quality control, which nowadays almost always involves the integration of online measurement methods into the production process, is of paramount importance for injection molding. Online pressure and temperature measurement is already widespread and essential for quality and production control. On the other hand, monitoring the appearance, color, or surface defects of products is less common. It is usually carried out with a camera system installed on a conveyor belt independently of the injection molding process. However, color defects in injection molded products, which are caused by the poor distribution of the colorant, are common defects that usually occur after color changeover in injection molding. Color changeover is currently not a well-controlled procedure, and it is associated with high additional costs. It also requires a large amount of material and causes extended downtime of the injection molding equipment. Color changeover can be even more complicated due to the specific design of the injection unit, the presence of static or dynamic mixers, and the hot runner system design of the molds. In this study, we develop a measurement method to monitor color change and the amount of material and time needed to clean the injection system. This method is based on digital image processing. It can be very useful in the plastic industry and can greatly help manufacturers to develop and produce more efficient injection molding systems.http://www.sciencedirect.com/science/article/pii/S014294182200280XInjection moldingColor changeoverQuality controlMulti-cavity mold |
| spellingShingle | Dániel Török Tatyana Ageyeva Róbert Boros Ágnes Kovács József Gábor Kovács Developing a method for evaluating color changeover in a hot-runner multi-cavity injection mold Polymer Testing Injection molding Color changeover Quality control Multi-cavity mold |
| title | Developing a method for evaluating color changeover in a hot-runner multi-cavity injection mold |
| title_full | Developing a method for evaluating color changeover in a hot-runner multi-cavity injection mold |
| title_fullStr | Developing a method for evaluating color changeover in a hot-runner multi-cavity injection mold |
| title_full_unstemmed | Developing a method for evaluating color changeover in a hot-runner multi-cavity injection mold |
| title_short | Developing a method for evaluating color changeover in a hot-runner multi-cavity injection mold |
| title_sort | developing a method for evaluating color changeover in a hot runner multi cavity injection mold |
| topic | Injection molding Color changeover Quality control Multi-cavity mold |
| url | http://www.sciencedirect.com/science/article/pii/S014294182200280X |
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