Ingeniería en Sistemas, Electrónica e Industrial

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    Plan de mantenimiento para la maquinaria crítica de Curtiduría Tungurahua S.A. basado en la Filosofía TPM
    (Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Carrera de Ingeniería Industrial, 2024-02) Constante Sánchez, Sergio David; Tigre Ortega, Franklin Geovanny
    The study presented is oriented to elaborate a maintenance plan for the critical equipment of the company Curtiduría Tungurahua S.A. by means of continuous improvement tools such as the TPM philosophy, due to the urgency of optimizing and maximizing the productive availability of the essential machinery installed in the plant. The starting point of the research is a deep analysis of the maintenance management through surveys and maintenance audits to better highlight the opportunities for improvement in the deficiencies found in each area of the department in question such as tooling policies, labeling and blocking systems, investigation of failures and breakdowns, among others described throughout the document. Subsequently, 9,6 % critical equipments were identified out of a total of 52 installed in the company, taking into account frequency and consequence factors; allowing to focus and prioritize the improvement and action efforts on these equipments for the elaboration of a maintenance plan based on failure modes and effects (FMEA). This modal analysis allows reducing a total of 83 shutdowns per year, which translates into approximately 8460 more minutes available for productive activities in the equipment established as critical which represents a reduction in inactivity of 18%.
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    Optimización de los procesos productivos de cuero Wet - Blue en la empresa Hidalgo Curtiduría aplicando herramientas de Manufactura Esbelta
    (Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Maestría en Producción y Operaciones Industriales, 2023-04) Bautista Romero, Milton Andrés; Ortiz Guerrero, Daysi Margarita
    El presente trabajo de investigación está enfocado en la optimización de los procesos productivos de cuero curtido Wet-Blue aplicando herramientas de manufactura esbelta. Se identificó los desperdicios generados en el proceso y las herramientas a utilizar, se definió la propuesta de aplicación a través de un sistema de manufactura esbelta. Con la información que se obtuvo en el diagrama de flujo, ficha de observación, estudio de tiempos, diagrama de recorrido (Lay Out) se constató la existencia de actividades que no están correctamente distribuidas y controladas y que no agregan valor al proceso, lo que ocasiona un proceso desbalanceado. Con el análisis realizado y el estudio de las herramientas de manufactura esbelta se seleccionaron los métodos adecuados para cambios importantes en el proceso de producción que permitan reducir tiempos de ciclo mediante la eliminación de actividades que no agregan valor. Se propuso la aplicación de herramientas de manufactura esbelta basado en la eliminación de actividades innecesarias que representaría para el proceso de cuero curtido Wet-Blue un aumento de su producción del 24,07%. Además, con el tiempo de ciclo propuesto el proceso tarda 1206 segundos por unidad, con una brecha del 4% respecto del takt time que es de 1317 segundos por unidad, en este sentido se podrá satisfacer las capacidades del mercado al ser el tiempo del ciclo menor que el tiempo del takt time. La gestión estratégica de la curtiduría Hidalgo es importante para lograr el éxito y la sostenibilidad en el tiempo, en este sentido la propuesta de implementación del mantenimiento productivo total TPM tiene influencia significativa en la productividad, confiabilidad y disponibilidad de los equipos de producción.
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    Manufactura esbelta como metodología para reducir desperdicios en el proceso de faenamiento de ganado bovino del Camal Municipal de Ambato
    (Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Carrera de Ingeniería Industrial, 2023-03) Muylema Heredia, Henry Ramiro; Naranjo Chiriboga, Israel Ernesto
    The lean manufacturing methodology is an excellent way to reduce waste by identifying, measuring and controlling it. Several companies have made use of this methodology that encompasses all those involved in the processes of an organization, generating as a product an organized and standardized culture. The Municipal slaughterhouse of Ambato, dedicated to the slaughter of large and small cattle, has seen the convenience of improving its processes in relation to existing waste, time in its processes, standardization of its activities. The objective of this research project is to propose improvement proposals through the application of tools belonging to the lean manufacturing methodology to mitigate or eliminate waste related to this methodology such as: unnecessary transports and movements, waiting times, defects, over-processing, within the processes of cattle slaughtering. For which a collection of information of the current slaughtering processes is developed with the help of industrial engineering tools, thus knowing which are the activities, tools, machines, personnel and current documentation used. Additionally, by means of a time study, the standard time of each of the processes was obtained as well as their respective cursograms and plant layout. These times are used for the development of the current VSM, with which the waste and activities that really add value in the production process can be identified in order to subsequently establish the most critical waste through a Pareto diagram with the use of tools such as the 5'S used to maintain order, cleanliness and discipline; TPM to maintain the equipment and tools in an optimal state to avoid plant stoppages and defects. To reduce the time of some critical processes, activities such as knife affiliation were eliminated and the proposal to acquire a pneumatic skinning machine was also made, reducing the slaughter time per bovine from 8.77 min to 6.01 min. Likewise, for traceability, improvements have been proposed in the activities, developing a process diagram for the same.
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    Análisis de los niveles de desperdicio desde la perspectiva de lean manufacturing en la empresa Renova
    (Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Carrera de Ingeniería Industrial, 2023-03) Freire Guevara, Jonathan Santiago; Naranjo Chiriboga, Israel Ernesto
    This research project is based on classic Lean Manufacturing wastes analysis that are present in production processes at RENOVA Company and is focused on proposing an action plan through Lean Manufacturing philosophy tools and methodologies application contemplated in a manual that allows the resources optimization, achieving a better productive flow and greater efficiency in the products delivery to final customer. From sales history between January and October of 2022 and through an ABC analysis the most profitable product was known, on which the information gathering of existing processes was carried out and later a time study was developed for the current VSM trace that allowed to determine initial production plant situation, where the present wastes were known as: defects of which 44% were associated to the machine factor and 56% to the human factor; reprocesses with a higher incidence of stitch jumps with 23.44% compared to the other causes; unnecessary movements by the warehouse and docking operator adding a total of 52.53% of unproductive time; waits mostly in the warehouse for finished product with 67.25% and inventory where a total of 240 garments were detected in season at the end of November. Through a cause analysis, improvement opportunities were established for each identified waste, which were complemented by a literature review of the advantages and contributions of each tool for its subsequent selection, resulting in the following methodologies: JIDOKA, TPM, APU and HEIJUNKA. By tools applying, a reduction in defects per unit percentage is established, an increase in the overall efficiency index of the equipment of 40.94%, a reduction of displaced meters of 72.86%, and finally, the elimination of waits and inventories by producing what is necessary in required time which brings an improvement of 77.27% in product delivery days to the final customer.
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    Herramientas de manufactura esbelta para el mejoramiento de la productividad en la fábrica de peluches Lily Toy´s
    (Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Carrera de Ingeniería Industrial en Procesos de Automatización, 2022-09) Lalaleo Torres, Jessica Paola; Sánchez Rosero, Carlos Humberto
    This research work proposes the improvement of productivity through lean manufacturing tools application proposal, for which a current situation of company analysis is carried out through methods study use, time study and VSM, determining that existing production plant waste are unnecessary movements, material transport, waiting, defective products and unnecessary processes, which generates low productivity at company. A study was carried out based on bibliographic and field research through which a descriptive matrix was established in which the possible causes of waste and lean manufacturing tools that can reduce or eliminate them in each area are placed, also the weighted factors method was used for tools selection and it was found that the 5'S, Kaizen, Jidoka and TPM are the best option. After tools identification, a productivity improvement plan was proposed and the procedure to be followed for each tool was described in manuals. In the case of the 5'S, resources in production plant were classified and ordered, in the case of Kaizen the work methods were improved and activities that do not add value to the product were eliminated, in the case of Jidoka and TPM manuals were established to help in the correct implementation. Through the simulation of the current and proposed situation, it was possible to present the improvement of the weekly production capacity of the medium sized piglet by 27.84% and the improvement of the delivery time of a batch of the final product by 37.07%, therefore, the improvement of productivity.