Browsing by Author "Naranjo Chiriboga, Israel Ernesto"

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Alternativa sustentable para el aprovechamiento de lodos activados residuales, generados en plantas de tratamiento de aguas residuales (PTAR) de empresas de alimentos
(Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Maestría en Producción y Operaciones Industriales, 2022) Toapaxi Mayorga, Eduardo Santiago; Naranjo Chiriboga, Israel Ernesto
This research proposes a sustainable alternative for the use and final disposal of residual activated sludge generated in wastewater treatment plants of food companies, through the elaboration of compost. The residual sludge was stabilized through composting in piles with mechanical turning, using sawdust as support material, to improve its conditions. Six piles were made, 5 of which with different amounts of residual sludge and sawdust, and 1 pile only with residual sludge. Variables such as: temperature, humidity and pH were measured, the data was taken based on a completely randomized experimental design. To determine the best treatment, it was only based on the temperature data obtained, in this way, it was determined that the pile made up of 7000kg of residual sludge and 3000kg of sawdust was the best, since it fulfilled the entire process, with the appropriate parameters. and obtaining a quality, stable and mature compost that contained the essential nutrients for agriculture. With this research, it was shown that it is possible to take advantage of the residual activated sludge from PTAR´s of food companies, protecting the environment, with cleaner production techniques and obtaining a highly useful product in the agricultural field with great benefits.
Análisis de factibilidad para la ubicación de un centro de distribución para la empresa Rectima Industry Cia Ltda.
(Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Carrera de Ingeniería Industrial, 2024-02) Narváez Farfán, Gabriela Juliana; Naranjo Chiriboga, Israel Ernesto
This research project focuses on optimizing distribution costs at RECTIMA INDUSTRY CÍA. LTDA., through the location and implementation of a Distribution Center (CEDI). By means of an analysis of the company’s current situation, the aim is to reduce distribution costs and meet customer demand. The methodology used includes the formulation of a mixed integer nonlinear programming mathematical model that achieves an optimal assignment of customers to the Ambato plant and the new CEDI, based on customer demand and geographical location, by calculating the distance using the Haversine Theorem. In addition, criteria and sub criteria were outlined according to bibliographic research to formulate the hierarchical multi-criteria decision model (AHP). This model allowed the evaluation and comparison of different location options close to the center of gravity delivered by the mathematical model, and, through the analysis of decision groups in the Expert Choice software, the best alternative was chosen. By applying these models, a substantial reduction of 15.43% of the $159,409.95 valued at the beginning of the study was obtained, this percentage includes the analysis of operating costs of installing the CEDI. The study concludes that the strategic location of the CEDIS can significantly improve efficiency and reduce costs in the supply chain.
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.
Aplicación móvil multiplataforma para la gestión de información georreferenciada de sitios turísticos de interés social y cultural de la ciudad de Ambato
(Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Carrera de Ingeniería en Sistemas Computacionales e Informáticos, 2020-11) Torres Barrionuevo, Bryan Stalyn; Naranjo Chiriboga, Israel Ernesto
ABSTRACT In a world where the information and communication technologies ICTs have become very important within the communities, it is possible to show how computer tools have started to stand out, as the case of the geographic information systems SIG and its applications for the easy access to the geographic information. The tourism sector has seen in the ICTs an important means of diffusion due to their massive reach for the promotion of their attractions, as well as to make known relevant aspects of local culture and customs. Taking advantage of the increasingly frequent use of mobile devices, tourism-related companies and entities have made use of applications that allow them to repower their activities and thus achieve substantial economic income through tourism. This research project has been developed with the aim of promoting tourist sites of social and cultural interest in the city of Ambato, as well as the dissemination of its history, customs and traditions through an application for mobile devices, which presents a catalogue of relevant sites in the urban area in combination with the use of 2D and 3D maps. The application has been developed using the Ionic framework in its version 5 in conjunction with Angular, using Typescript as the programming language. The resources for the visualization of maps have been made using the Leaflet and Mapbox libraries. Additionally, the services required for the operation of the application were developed using Node.js, as well as MongoDB as a database management system, which were deployed on a Digital Ocean VPS.
Desarrollo de la metodología lean Healthcare como estrategia de mejora y reducción de desperdicios en la bodega de medicina y farmacia del IESS Ambato
(Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Carrera de Ingeniería Industrial, 2024-08) Gallo Sánchez, Marlon Andrés; Naranjo Chiriboga, Israel Ernesto
In investigating the wastes at the Instituto Ecuatoriano de Seguridad Social (IESS) Ambato, specifically the request for medications outside the scheduled dispatch day in the medicine warehouse and errors in the preparation of medication cassettes in the inpatient pharmacy such as medications requiring others for administration, indicated but not prescribed medications, or under-dosing the aim is to develop the Lean Healthcare methodology as a strategy for improvement and waste reduction in both areas of IESS Ambato. Through analysis of orders, reports, and medication documentation from March and April 2024, coupled with a time study, a Value Stream Map (VSM) was created to evaluate the current situation. Various quantifications of wastes employed Pareto diagrams and U control charts for analysis. Among the wastes identified in both areas were defects, unnecessary transportation, waiting times, and overproduction (exclusively in the pharmacy). To mitigate these issues, manuals were developed explaining the use of tools such as poka-yoke for defects, the 5S methodology with continuous flow for waiting times, and kanban for unnecessary transportation and overproduction. The implementation of the Lean Healthcare methodology is an effective strategy to identify and eliminate these wastes, potentially reducing waiting times by an estimated 13% and minimizing errors in medication preparation and distribution by approximately 7%. Through the application of Lean tools, the aim is to improve operational efficiency and medical care for patients.
Diseño de la metodología Lean Logistics para la gestión eficiente del proceso de despacho en la distribuidora Dismar
(Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Carrera de Ingeniería Industrial, 2024-08) Mayorga Zapata, Adrián Gustavo; Naranjo Chiriboga, Israel Ernesto
Dispatch process management at Distribuidora DISMAR faces significant challenges that impact operational efficiency and customer satisfaction. The central problem lies in the existence of activities that do not add value to the final customer, as well as the presence of waste such as waiting times, unnecessary movements, and defects in the process. Therefore, this project objective is to design a Lean Logistics based methodology to tackle these challenges and improve the dispatch process management at DISMAR. To achieve this objective, a methodology that included identifying non-value-adding activities, designing Lean tools such as Value Stream Mapping (VSM), Kaizen, and JIDOKA was employed, as well as evaluating and selecting specific solutions to enhance the dispatch process. Main results show a significant improvement in process efficiency, with reductions in waiting times, unnecessary movements, and defects. Additionally, specific solutions were implemented, such as warehouse layout redistribution, automated billing software introduction, proper warehouse signage, and the use of barcode reading equipment to avoid defects during product selection. These solutions proved effectiveness in optimizing the dispatch process. Regarding transportation, the initial monthly cost was reduced by 58.88%, from $1,627.13 to $669.19; the initial monthly waiting cost was reduced by 51.46%, from $250.23 to $128.77 and the time spent was reduced by 51.48% compared to the initial situation. Additionally, estimated annual savings from implementing the proposed solutions is $13,040.52, which justifies cost of proposals amounting to $1,200.40. These results highlight the effectiveness of Lean Logistics methodology as a solid foundation for optimizing processes and achieving more efficient management at DISMAR.
Diseño de un modelo logístico para la gestión de costos de distribución en la empresa Rectima Cia. Ltda
(Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Carrera de Ingeniería Industrial en Procesos de Automatización, 2022-03) Cepeda Espín, Luis Enrique; Naranjo Chiriboga, Israel Ernesto
This research work purpose is to carry out a logistic model for product distribution costs management in auto parts distribution company Rectima Cía. Ltda. with the purpose of identifying the exact cost of merchandise distribution to final customers, considering that at present this service is outsourced and a total of $32,978.78 was invested, for this purpose all the information regarding number of shipments, number of packages, assumed costs and customers involved in the process of the provinces in which the study was conducted is collected. Trough the carried out bibliographic research, fixed costs were identified, which are equivalent to $60,87 and the variable costs, which add up to $2,10, considering that they are ideal data for the proposed project. At the same time, with field research and factor method application, enough information was collected to establish what type of vehicle would be ideal to transport the merchandise, resulting in a Chevrolet NMR 613 truck with a load capacity of 3.5 tons, this with the experience of observing and collecting information on daily number of shipments made to Pichincha, Tungurahua and Cotopaxi provinces, likewise, with the help of the web tool Google maps, the distances in which customers are located from the distribution center were determined. With all this data obtained, an Excel database was created that allows the company to identify the cost of sending merchandise to a client or a specific route, resulting in a cost of $16,415.62 to transport the merchandise identified in the study period. The program also stores accurate information about all expenses incurred in the use of a company-owned vehicle and allows to generate indicators that measure the costs assumed by the company and the performance of all vehicle accessories, especially the tires, which have been proposed a minimum performance of 32500 km of useful life of the 6 tires used and fuel consumption, which should yield 21,057 km per gallon.
Distribución de instalaciones en la Planta de Producción de la Empresa Tenería San José Cía. Ltda.
(Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Carrera de Ingeniería Industrial en Procesos de Automatización, 2020-10) Calapiña Caguana, Oscar Fabricio; Naranjo Chiriboga, Israel Ernesto
ABSTRACT The Project of investigation shows a new Facility Layout for the company Tenería San José CIA. LTDA in a new building, this as a strategy for improvement and corporate growth. The investigation has several stages of which it emphasizes the differentiation of products, information survey of the productive process, development of study of times, application of methodologies of distribution of facilities and simulation. Because of to the many number of products offered by the company, ABC analysis was selected as tool to segment the articles based on importance, the results was that Fendi, Nubuck, Vitello and Nuvola are considered important with 81 percent of contribution of total products. The generation of improvement proposals is done through the Systemic Layout Planning (SLP) method, which are later evaluated through the Load-Distance analysis as a theoretical method; these in turn are taken to the simulation in the Flexsim software where variables such as distances traveled by operators, time spent on transporting materials, machinery occupation time, work in process (WIP) and production capacity are evaluated, this in a simulation time of three months. Finally, the study proposes a new facility layout where the distances traveled between work stations are reduced by 35.50 percent, the cost of transporting materials is reduced by 60.75 percent, the use of the machine considered the bottleneck increases by 1.11 percent, the work in process is reduced by 69 average hides in the wet area and the production capacity presents a growth of 1.79 percent which represents an increase of 5 leather belts per day.
Distribución de instalaciones para la empresa Vinos D. Diaz
(Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Carrera de Ingeniería Industrial, 2024-08) Labre Yugcha, Melida Abigail; Naranjo Chiriboga, Israel Ernesto
The present research entitled "Distribution of facilities for the company D. Diaz wines" is focused on solving the problem of inefficient distribution of facilities, which generates excessive travel distances and interrupted work flow. The main objective of this work is to design a plant layout that optimizes the use of space, reduces travel distances and improves production flow in the new facility. To achieve this objective, a methodology is employed that includes an initial diagnosis of the current facilities, data collection through direct observation, interviews as well as time and activity analysis. The dimensions and characteristics of the spaces needed for each production area are evaluated, using software such as AutoCAD and FlexSim to simulate and analyze the proposal. The main results of this research reveal that the proposed layout of the facilities, validated by means of a simulation model, achieves a significant reduction of the distances traveled and the elimination of intersections in the production process. These changes significantly improve the production flow, reducing the distance traveled by 67.22% and increasing the operational efficiency in its production capacity to 6,000 bottles per year. In conclusion, the implementation of the new distribution model, analyzed through simulation in FlexSim, significantly optimizes the use of space in the plant and ensures a continuous production flow.
Distribución de instalaciones para la mejora del sistema de almacenamiento en la bodega de materias primas de la empresa de calzado Gamo´s
(Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Carrera de Ingeniería Industrial, 2022-09) Calderón Castillo, Washington Alfonso; Naranjo Chiriboga, Israel Ernesto
The problem arises from the need to have a distribution of facilities that provides adequate spaces, properly distributed areas and a storage system according to the requirements of the company, since the current distribution of facilities is not adequate and generates problems in the logistic processes of storage. For the development of the project, the methodology of logistics diagnosis of warehouses and distribution centers was used to identify the current conditions of the warehouse, obtaining as a result deficiencies in floor quality, lack of loading-unloading docks, inadequate distance between aisles and lack of indicators, triggering problems in the processes of reception, storage and dispatch of raw materials, likewise, a categorization of products was made based on the level of consumption and analyzing the criticality of raw materials, identifying the most critical materials thanks to the use of tools such as: ABC, BOM and criticality matrix. On the other hand, the PRISMA methodology was used to obtain applicative criteria related to storage principles and distribution techniques that allowed the design of a new distribution of facilities with which a reduction of about 3,000 meters is foreseen, limiting internal movements by applying a heuristic allocation method. The estimated investment for the implementation is US$59.758,56 and an annual saving of US$1.779,32 is estimated, which represents 2.98% of the total investment, allowing a recovery of the investment in 33,6 months. Finally, the results are corroborated through the simulation of the storage logistics processes using FlexSim software.
Distribución de instalaciones para la nueva planta de producción de la empresa de Calzado CASS
(Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Carrera de Ingeniería Industrial en Procesos de Automatización, 2020-01) Yuccha Cuno, Edgar Aníbal; Naranjo Chiriboga, Israel Ernesto
El trabajo de investigación tiene como finalidad la presentación de una propuesta de distribución de instalaciones para la nueva planta de producción de la empresa de calzado CASS, propuesta que es rentable y de gran utilidad al permitir evaluar los principales factores que afectan a la productividad como las grandes distancias recorridas e inadecuado uso del espacio. Para el proyecto se considera tres etapas, el levantamiento de la información del proceso productivo actual, aplicación de técnicas de distribución de instalaciones y toma de decisiones con una herramienta multicriterio. La generación de alternativas de distribución se llevó a cabo empleando el método SLP el cual emplea una visión cualitativa del problema; para la validación de la primera disposición física, se utilizó el método carga distancia permitiendo tener un resultado más técnico. Con la ayuda del software WinQSB especializado en resolución de problemas de la investigación operativa se genera una segunda alternativa de distribución tomando en cuenta las mismas restricciones físicas. En apoyo a la determinación de la distribución que brinde la mayor eficiencia para el proceso productivo, se optó por analizar ambas alternativas a través del proceso analítico jerárquico como técnica multicriterio para la toma de decisiones en el entorno del software Expert Choice. La propuesta de distribución se enmarca en el interés de diseñar una nueva disposición física con un criterio técnico y sustento tecnológico, por lo que el presente proyecto obtuvo ahorros considerables alcanzando una disminución de 232,50 metros en la distancia total recorrida, lo que equivale a 5,17 minutos menos en el tiempo total de fabricación. he work of investigation has as purpose the presentation of a proposal of distribution of facilities for the new plant of production of the company of footwear CASS, proposal that is profitable and very useful when allowing of evaluating the main factors that affect the productivity as the great whole ranges and inadequate use of the space. For the project one considers three stages, the rise of the information of the present productive process, application of techniques of distribution of facilities and decision making with a tool multicriterial. The generation of distribution alternatives was carried out using the method SLP which uses a qualitative vision of the problem; for the validation of the first physical disposition the method was used loads distance allowing to have a result more technician. With the aid of software WinQSB specialized in resolution of problems of the operations research one second alternative of distribution is generated taking in account the same physical restrictions. In support to the determination of the distribution that offers the greater efficiency for the productive process, it was chosen to analyze both alternatives through hierarchic analytical process as technical multicriterial for the decision making in the surroundings of software Expert Choice. The distribution proposal is framed in the interest to design a new physical disposition with a technical criterion and technological sustenance, reason why the present project obtained considerable savings reaching a diminution of 232.50 meters in the crossed total distance, which is equivalent less to 5.17 minutes in the total time of manufacture.
Gestión de aprovisionamiento para las materias primas e insumos empleados en los procesos productivos de la Empresa Bioseborganics Cía. Ltda.
(Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Carrera de Ingeniería Industrial, 2024-02) Núñez Carrera, Melanie Carolina; Naranjo Chiriboga, Israel Ernesto
Procurement management of raw materials and supplies at BIOSEBORGANICS CÍA. LTDA. is a central challenge that requires immediate attention due to its direct impact on the quality and availability of essential supplies for bioproduct production. In response to this problem, a Kraljic matrix is employed to distinguish obtained information for each product based on its characteristics and nature, as well as the peculiarities that surround its suppliers. This tool not only allowed the classification of raw materials and supplies in terms of acquisition complexity and financial impact, but also laid the groundwork for procurement strategy proposals, which have a dual purpose: to strengthen part of the existing activities in the company and to direct others towards a comprehensive transformation to infer in terms of availability and quality. Thus, by contrasting the gathered information, a process characterization and a procedure manual were created, which denote the processes that support the corresponding model. However, a second manual focused on the supplier selection and evaluation process was elaborated, which aims to reinforce the procurement structure, since its relevance has been identified at the root of challenges. It is finally highlighted that timely procurement depends on both executed activities, and the actors involved on them.
Gestión de inventarios para mejorar el control interno de materiales en la empresa “Saibe Construcciones”
(Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Carrera de Ingeniería Industrial, 2022-09) Salinas Oñate, Christian Emmanuel; Naranjo Chiriboga, Israel Ernesto
An inventory management model application makes it possible to maintain materials and equipment available in the right place and at the right time, which is essential to maximize the expected profits of any company, much more so for a construction company that works continuously with large quantities of materials, so SAIBE CONSTRUCCIONES has considered appropriate the application of an inventory management model that reduces the costs inherent to them. For model aplication, the last project carried out in the company, which was the construction of a house, was selected as the basis. Initially, used materials were classified by applying a Pareto diagram (also called ABC) that divides them into 3 categories that allow identifying the ones that represent the greatest amount in economic terms, so that they are the objective of the study. In A category, the economic order quantity (EOQ) model was applied, which allowed determining the number of orders to be placed and the quantity that these should have to minimize storage and order costs. For B and C categories, it was suggested to only place one order with all needed materials at the start of the project or the stage of construction where they will be used; as a result, when comparing total inventory costs for traditional method and using proposed models, an overall savings of $567,71, equal 12,47% of traditional cost, was obtained, demonstrating effectiveness of the proposed methods. The proposal also includes the use of a maritime container as a temporary warehouse for materials that can be reused in each of the company's projects. By comparing these costs to those of the current method, which entails building these storage facilities for each project, an annual savings of $1292,16 was calculated. Proposal will make it possible to ensure effective resources management, which will enable the company to focus on the best possible development of its work while maintaining customers satisfaction and bringing it one step closer to establishing itself as one of the nation's most reliable and efficient builders.
Gestión operativa en Bioalimentar Cía. Ltda. mediante la integración de Sales and Operations Planning (S&OP) y Theory of Constraints (TOC)
(Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Carrera de Ingeniería Industrial, 2024-08) Taipe Bravo, Gabriela Monserrath; Naranjo Chiriboga, Israel Ernesto
This project focuses in the need of minimizing production planning errors at BiOALIMENTAR Cía. Ltda., which faces challenges in the accuracy of its demand forecasts. The objective is to evaluate Sales and Operations Planning (S&OP) and Theory of Constraints (TOC) methodologies integration in operational management, aiming to improve forecast accuracy and market competitiveness. Methodology includes an exhaustive literature review based on Fink, divided into four phases: research design, information collection, data extraction and execution, and analysis and interpretation of the collected information. The literature review allowed the establishment of a conceptual framework to integrate both methodologies through capacity buffers, inventory, and the concept of the red line as the maximum available capacity value. The main results, obtained through the MAPE indicator, showed a comparison with the initial situation, which has a 24% error. Various scenarios were evaluated, including: Average Daily Consumption with S&OP, which presented a 19% error and lower cost; Weighted Averages, with a 16% error; Difference between S&OP and Red Line + Target Stock, with a 20% error; and Balanced Production with Median Adjustment, with a 30% error. These results demonstrated optimal forecast accuracy and operational efficiency. In conclusion, S&OP and TOC integration offers a robust and adaptive solution to BiOALIMENTAR's operational challenges, allowing it to face demand variations and optimize inventory levels, contributing to more agile management.
Herramientas de manufactura esbelta para la reducción de tiempo de ciclo en la Empresa de Confección de Jeans BETOJUNIOR
(Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Carrera de Ingeniería Industrial en Procesos de Automatización, 2020-09) Chicaiza Cali, Mónica Katherine; Naranjo Chiriboga, Israel Ernesto
SUMMARY The non-optimized processes together with the activities that do not add value to the product and the different types of waste in the textile industry make “BetoJunior” choose to carry out an analysis of the current state of its production processes; The main objective of this research is to apply the necessary Lean Manufacturing tools in order to correct the problems mentioned above, in addition to reducing the cycle time of the production line. The project has a qualitative-quantitative approach because it handles three types of Lean Manufacturing tools; to manage waste and eliminate unnecessary objects, the 5 "S" tool was applied, so that work performance is not affected by problems in the physical work area. On the other hand, through the SMED tool and its study of times in the sewing process, it was sought to reduce the cycle time of the same. In order to eliminate the defects in the product, the third tool corresponding to Jidoka was applied, for which the fault in the garment and later its root cause was located. According to the data obtained, there is a great demand for PK2 size 10 women's pants, the same one that in its production processes wastes and disorder were found in the work area; In addition to having external and internal operations that do not add value to the product, the same ones that were combined in order to reduce cycle time. Defects were found in the final product that mostly pertain to sewing failures and stitch failure. It is concluded that women's trousers with their model called PK2 size 10 are the most representative, generating an appreciation of $ 435,282.00 in 2018. Similarly, the total standard time of the production process of the jean studied is 442.89 min / batch, the same time as once the proposed tools have been used, its value decreases to 427.58 min / batch, that is, there is an increase of 9 garments per day, turning the improvement proposal into an opportunity for “BetoJunior” increase your productivity.
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.
Manufactura esbelta para el mejoramiento en la planta de producción de la Empresa Bioalimentar Compañía Limitada
(Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Carrera de Ingeniería Industrial en Procesos de Automatización, 2020-10) Mosquera Guamanquispe, Patricio Germán; Naranjo Chiriboga, Israel Ernesto
ABSTRACT The company Bioalimentar Compañía Limitada, having new infrastructure, generates waste in the process due to the disorganization of the production plant, in addition to the high times in the change of tooling in the machinery, so that this research aims to make a proposal for improvement through the Lean Manufacturing methodology. The methodology used for the analysis of the process is based initially on the determination of the operating times to obtain the respective production capacities, the same data that are used for the realization of diagnostic tools such as the Value Stream Mapping (VSM ) that allows to identify waste and opportunities for improvement, and by means of the Ishikawa Diagram to determine the cause of them. On the other hand, waste is categorized using a Lean Matrix in order to decide which tool is best suited to the identified problems. With the determination of the cycle times, it is established that the grinding process defines the rhythm of the system with a time of 0,102 minutes / unit due to the change of tooling that is made to the hammer mill machine, generating waits for the others products that the company manufactures, being one of the main wastes identified in the applied lean matrix where others can also be found such as: defects and incorrect processing, which can be eliminated with the application of tools such as: 5's, SMED and Participation System of the personnel, being these chosen as proposal for the study. Applying the aforementioned tools, with the 5's the order and cleanliness of the production plant is improved, while, with the SMED, the tool change time is reduced, improving its cycle time to 0,071 minutes / unit, thus having an increase production capacity.
Mejora de los procesos de control de calidad entrante en una planta ensambladora de puertas para congeladores verticales
(Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Maestría en Producción y Operaciones Industriales, 2023) Achache Telenchana, Alex Santiago; Naranjo Chiriboga, Israel Ernesto
El presente trabajo es resultado de la necesidad de mejorar los procesos de control de calidad entrante en la planta ensambladora de puertas para congeladores verticales en la empresa FAIRIS C.A., siendo la inexistencia de un sistema de inspección de materiales la causa principal de la problemática central; es así como la presente investigación tiene como objetivo mejorar los procesos de control de calidad entrante en la planta ensambladora; para ello se utilizó una metodología enfocada en la investigación cuantitativa, experimental y bibliográfica documental, así como herramientas de análisis y recolección de información como las 8D´s, diagrama de Ishikawa, 5 por qué y diagrama de Pareto con los que se identificaron que la materia prima llegaba defectuosa por parte de los proveedores. Como resultado de la investigación se propuso un sistema de inspección de control de calidad entrante que permitió registrar los suministros críticos entregados por los proveedores; además, detectar fallas del material previo al ingreso al área de almacenamiento y posterior entrada al área de producción. Este sistema propuesto se conformó de varias etapas; desde la determinación del proceso de ingreso de la materia prima, la descripción de procesos basados en las normativas ISO 9001:2015, ISO 2859 y NTE INEN-ISO 2859-1:2009, identificación del personal responsable, los resultados finales de inspección hasta la metodología para la evaluación de los proveedores, permitió mejorar los procesos de producción lo cual se evidenció en la realización de un proceso de inspección-ensayo comprobando que por medio de la implementación de este sistema los reclamos disminuyeron en promedio de 8.75 a 2.75 reclamos mensuales en los meses de marzo a junio del año 2021 – 2022; llegando a concluir que el sistema de inspección de control de calidad entrante contribuye a la disminución de los reclamos de los clientes y minimiza los problemas de calidad en el producto terminado.
Mejora en la planeación de producción de la empresa D´Christian Maryuri utilizando un plan de requerimiento de materiales
(Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Carrera de Ingeniería Industrial en Procesos de Automatización, 2022-03) López Rivas, Alexis Xavier; Naranjo Chiriboga, Israel Ernesto
This research work details the development of a material requirement plan for a medium-sized company in the textile sector, which is dedicated to the manufacture of underwear for men, women, boys and girls, located in the Santa Rosa parish. , from the province of Tungurahua. Various industrial engineering techniques focused on the field of production planning are applied, such as: time study, calculation of forecasts with trend factor, calculation of production capacity, analysis and calculation of production costs, aggregate planning, a production master plan. Within a structured list of materials, costs for acquisition and supply of material, costs per order and delivery times are involved, information of great importance for the development of an MRP, which has been carried out at three levels, 1) determination of an aggregate production plan through the analysis of three traditional models corresponding to leveling capacity with inventories, matching demand and subcontracting, the latter being the most suitable for the company based on its economic activity, internal capacity, available labor and number of orders by the customer with a cost of $128,980.20, 2) a master production plan, in which the batch size to be produced per week in a period of 3 months is determined and whose feasibility is determined by the capacity requirement calculation and 3) a list of the gross material requirements to cover the monthly demand, resulting in a p issued whose releases consist of exact amount and date. The application of this MRP system allows greater coordination and control in the management and supply of raw material and supplies for the manufacture of articles, optimizes material and economic resources, generating with the proposed model an improvement of 11% corresponding to economic savings. of $102,124.18 in relation to production costs.
Mejoramiento de la productividad empleando manufactura esbelta en la línea de fabricación de carrocerías
(Universidad Técnica de Ambato. Facultad de Ingeniería en Sistemas, Electrónica e Industrial. Maestría en Producción y Operaciones Industriales, 2021) Alarcón Chávez, Christian José; Naranjo Chiriboga, Israel Ernesto
The purpose of this work is to study the construction process line of VM6 urban model bodywork, documenting necessary times in its manufacture, starting with preparation of chassis and advancing through each of the processes in which quality control must be involved until the final inspection. The research will denote the existence of bottlenecks in the finishing area since it has the longest production time, so a viable solution is given to eliminate this bottleneck. In this way it becomes relevant to create strategies that decrease the manufacturing times without the total variation of processes. Nowdays, finding a linear production system that helps and leverages the competitiveness in terms of national car bodies production is very limiting; VARMA, has been consolidated as one of the main car body industries at nationally, has a distribution of processes that has not been updated, becoming very alien to the production, for this reason it is necessary to reduce the total time of car body manufacturing. In a simple way this research work aims to achieve through an analysis of times and movements to denote that along the linear process there are several procedures that can be overlapped improving the total production times without affecting its quality, in addition to a plant layout that contributes to the reduction of walking times.