Today very few Peruvian agribusiness companies have automated packaging systems to complete the process of forming and filling boxes. The most of companies use manual packaging systems generating bottle-necks and low production flows which are a disadvantage in the competitive world market and do not allow to take benefit of the Free Trade Agreements the Peruvian government has recently implemented. This is the case of lemons, oranges and mangoes export companies which mostly use manual packaging systems.
This project seeks to present an alternative solution to this problem by developing a prototype system for the automatic shaping, filling and sealing of cartoon boxes. The automated packaging system has been designed and implemented using an electro-pneumatic system controlled by a PLC (programmable logic controller). The results show that the packaging time can be reduced from 15 seconds to 9 seconds meaning an improved production rate of over 60%.
Thermal forming is a process for transforming the shape of plastic products. It consists in the heating of a plastic sheet which takes the shape of the mold where it is introduced. Thermal forming processes can be carried out through vacuum techniques or through variable pressure and temperature techniques. The thermal forming is commonly used in industry because it is easy to implement, it requires few tools and instruments, it is fast and of low cost.
In this project, it is designed and implemented an automated prototype system for thermal forming of polystyrene applied to the fabrication of plastic containers. The thermal forming system is designed using CAD techniques and constructed using an steel structure where all the components are fixed. Electrical resistances are used to generate controlled to provide proper temperature level for the adequate forming of the plastic containers. The holding, positioning and transport of the plastic materials are carried out using pneumatic elements which are controlled using a PLC (programmable logic controller). The effectiveness of the thermal forming systems has been tested and verified for different shapes of molds and operating conditions.
The automatic selector of materials and colors is an industrial automation project that seeks to reduce costs and production time in the process of selection and distribution of materials. Uses a method of detection using optical and inductive sensors which recognize the material and color of pieces and then send a signal to the Programmable Logic Controller (PLC) to activate an automatic actuator for doing the selection and distribution of material obtaining more speed of selection and classification of 491 materials per hour and reduction of workers from 4 to 1.
Therefore we have an optimized of time and selection and additionally a cost reduction.
The USB memory is a low-cost digital storage device commonly used for diverse applications. Most of USB memory shapes and designs are similar and easily portable. Actual designs of USB memory devices have caps that easily get lost or the device itself fails and turns to be useless losing all the storage digital information with a significant economical damage for the person holder of the memory.
In this project, a solution is developed through the design and construction of a USB memory casing of easy use and transport which provides more protection and robustness to these memory devices. The casing was designed considering ergonomics, portability and scalability factors using CAD/CAM techniques. High-density polyethylene was selected as the material for the casing which was finally fabricated using a CNC milling machine properly programmed to complete de proposed design.
The Laboratory of Computer Integrated Manufacturing CIM of Ricardo Palma University is a place commonly used by students and faculty to develop and complete design projects and laboratory experiences. In order to assure the proper operation of the CIM Laboratory, it is required to control de access of people who get-in and get-out from the laboratory. For this, an electronic card, CIMCARD, has been designed and constructed to be carried by students and faculty who are authorized to access the CIM Laboratory.
The CIMCARD is made from acrylic and shaped using a programmable CNC milling machine to contain a magnetic signal emitter. These signals are detected by a sensor fixed in the door of the laboratory to detect if a person is passing through it. This detecting sensor is connected to a computer which registers the code of the person holding the CIMCARD, and analyze if it is authorized to get-in or get-out from the laboratory. If the person is non-authorized, the computer emits and acoustic signal so that the faculty in charge of the laboratory can take the proper action. An application software registers the name and code of the people accessing the laboratory as well as the time when they get-in or get-out. The system has been tested and its operability verified for different working conditions. The system is planned to be applied to other restricted areas of the university.
BMX is a special sport carried out in bicycles and it is getting more acceptance among young people. It is considered an Olympic sport since 2008. In BMX, the driver rides a bicycle making several acrobatic movements to avoid obstacles or for performing synchronized and artistic movements. To develop these movements, the driver should position their feet on the pegs fixed in the shaft of the front and rear wheels. Special and expensive BMX bicycles are equipped with pegs at both sides of the wheels.
In this project, it is proposed the design, construction and fixing of pegs for converting conventional and non-expensive bicycles in to BMX bicycles. The pegs are designed using CAD techniques and fabricated using a CNC lathe machine programmed to complete the proper sequence to delineate the shape of the peg. The fabricated peg has been fixed in the rear wheel of a conventional bicycle through a screwed hole, and tested by a driver performing diverse movements. The peg supports driver weight, it is robust and safe to perform BMX sports.
An academic institution like a university, college or school require to make a control of their assets, equipment, furnishing and goods in order to achieve a better use of them. In that sense, this project develops a software application to register, monitor and control all the actions and changes implemented on the assets: date of acquisition, physical placing, rotation and moving, repairing, removal and replacement. The software application performs as a goods catalog constantly updated.
The modeling of the processes and data was carried under a UML platform using Case Rational Rose toolbox. The software was developed using Visual Studio and a SQL data base.