In medical applications, specifically in the handling of mechanical utensils, hygiene and safety must be ensured, which implies a complete cleaning and sterilization of these, as well as the absence of burrs on support edges, in order that there are no harmful cuts of the tissues that are being examinated or manipulated. In such a way, the so-called mirrors or vaginal dilators are very useful elements in the review of women's health and should not be exempt from the minimum quality of hygiene and safety. These devices, are developed using a special polymer, which are commonly elaborated through plastic injectors using molds, due to, they are implemented using different parts, generate the creation of sharp edges and shavings that must be eliminated. The geometry of the mirrors implies a certain complexity in the elimination of the cutting elements. In the present work the design of a polishing machine is presented, which is designed under the principle of fusion of sharp edges and shavings by applying heat from butane gas flames. The proposed machine transports the mirrors to the position to the location of the heating source, with the proper orientation, in order to eliminate the edges and shavings.
Gas sensors are widely used in devices known as electronic Noses. Which are used for the detection of gas leaks, environmental quality and food, etc. However, it is necessary to perform a quantitative and qualitative analysis of these sensors based on the measurement of their response to obtain their characterization. In the present work is shown the design and implementation of a measurement system for gas sensors response. Therefore, a sealed stainless-steel chamber that internally contains the sensors is designed. On the other hand, a temperature controller is implemented using a PID controller governed by an interface developed using virtual instrumentation software. Particularly, this system has the ability to measure the response of gas sensors, such as: metal-oxide and quartz crystal microbalance. The development of this project, presents an alternative to measure the response of sensors to commercial, contemplating a lower cost and same functionality. Measurements were performed at different temperatures, applying samples of ethanol, obtaining typical results in the response of this type of gas sensors. Therefore, it can be said that the system operates satisfactorily.
Flexible Manufacturing Systems (FMS) are more commonly used in modern industry due to the benefits offered, such as: low-cost production, easy adaptation to elaborate different products according to the client necessities. A Flexible Manufacturing Cell (FMC) has two or three workstations; moreover, a system to control and manipulate de process. Industrial communications protocols are used to communicate workstations of a FMC, such as: Profibus, Ethernet, Device Net, etc. For the case of not have such protocol to communicate devices, due to an incompatibility between protocols, an alternative solution has been implemented in order to perform the same function. In this work, is presented the obtained results of a preliminary development of a system capable to manipulate and monitoring a flexible manufacturing cell using a communication card using a microcontroller to communicate a HAAS VF2 machining center and a FANUC robot M6iB. Moreover, an user interface is developed using LabVIEW with a web cam, which communicates with the microcontroller via RS-232, with the capability of monitoring the system via internet.
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