Waste reduction in printing process by implementing a video inspection system as a human machine interface

Pérez Juárez Carlos Alberto, Pérez Juárez Sonia Karina, Soler Anguiano Francisca Irene, Ramos Álvarez Adrielly Nahomee
2021 Procedia Computer Science  
Human mistakes are the main cause of most of the production failures and rejections for bad impressions in the printing industry, for this reason the industry has been working on the development and design of complementary equipment with the aim of reducing the rejections caused by these errors using human-centered design that allows focusing on reducing these mistakes, improving interaction and cooperation between the user, the machine and the process. Contextual research showed that there is
more » ... owed that there is currently qualitative evidence regarding the improvement of prints by having a machine video inspection system, but there is no quantitative analysis of the true cost-benefit that exists from having a video inspection and justify its implementation. Therefore this work defines a preliminary study of a video inspection system, used as a complementary equipment to a flexographic rotary printing machine, to improve the printing process focus on machine-human interaction, in a printing company of Mexico City after a notable need for an effective improvement in the printing process in order to reduce waste in production and in rejections for poorly printed jobs. Five representative jobs will be selected, and the cost per meter of linear printing will be evaluated, to give a value to the waste, later the decrease due to production and rejections of a run will be counted for each of the five selected jobs, with and without the system of video inspection, and finally with a comparative analysis of costs, the profitability of the equipment will be determined, obtaining as a result the viability of the equipment, which is directly related to the value of the decrease, since there is an equilibrium point between this value and the value of the equipment, where from there the implementation of the video inspection system is justified; due to the current situation of COVID 19, it was not possible to carry out the necessary measurements to validate the system. Therefore, only the proposed methodology will be described. Abstract Human mistakes are the main cause of most of the production failures and rejections for bad impressions in the printing industry, for this reason the industry has been working on the development and design of complementary equipment with the aim of reducing the rejections caused by these errors using human-centered design that allows focusing on reducing these mistakes, improving interaction and cooperation between the user, the machine and the process. Contextual research showed that there is currently qualitative evidence regarding the improvement of prints by having a machine video inspection system, but there is no quantitative analysis of the true cost-benefit that exists from having a video inspection and justify its implementation. Therefore this work defines a preliminary study of a video inspection system, used as a complementary equipment to a flexographic rotary printing machine, to improve the printing process focus on machine-human interaction, in a printing company of Mexico City after a notable need for an effective improvement in the printing process in order to reduce waste in production and in rejections for poorly printed jobs. Five representative jobs will be selected, and the cost per meter of linear printing will be evaluated, to give a value to the waste, later the decrease due to production and rejections of a run will be counted for each of the five selected jobs, with and without the system of video inspection, and finally with a comparative analysis of costs, the profitability of the equipment will be determined, obtaining as a result the viability of the equipment, which is directly related to the value of the decrease, since there is an equilibrium point between this value and the value of the equipment, where from there the implementation of the video inspection system is justified; due to the current situation of COVID 19, it was not possible to carry out the necessary measurements to validate the system. Therefore, only the proposed methodology will be described.
doi:10.1016/j.procs.2021.01.131 fatcat:jp4s7ovcdbhhfc25dyrh6ngaru