Piston pressure meter for 3D printing platforms in semi -solid mass extrusion (Machine-translation by Google Translate, not legally binding)

• Main Authors: Díaz Torres, Eduardo, Fariña Espinosa, José Bruno, Santoveña Estévez, Ana María
• Format: Patent
• Language: English; Spanish
• Published: 22.06.2022
• Subjects: ADDITIVE MANUFACTURING TECHNOLOGY; ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; PERFORMING OPERATIONS; PHYSICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TESTING; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The piston pressure meter for 3D printing platforms is applicable in various 3D printing fields (tissue bioimpression, food, pharmaceutical, ceramic industry). Its utility is that it allows continuously controlling the pressure applied throughout the printing process, thanks to the instrumentalization of the piston. In this way, it allows to improve quality and detect in situ errors and can apply corrective actions during the process. Through the use of an extensiometric gauge, the pressure value exerted by the component of the printing platform on the plunger is obtained and, therefore, on the mass to be extruded. This continuous control allows to characterize the semi -solid mass that is printed and can establish the most appropriate in situ printing parameters, being able to completely automate the process. (Machine-translation by Google Translate, not legally binding) El émbolo medidor de presión para plataformas de impresión 3D es aplicable en diversos campos de impresión 3D (bioimpresión de tejidos, industria alimentaria, farmacéutica, cerámica). Su utilidad radica en que permite controlar de forma continua la presión aplicada durante todo el proceso de impresión, gracias a la instrumentalización del émbolo. De esta forma, permite mejorar la calidad y detectar errores in situ pudiendo aplicar acciones correctoras durante el proceso. Mediante el uso de una galga extensiométrica se obtiene el valor de presión que ejerce el componente de la plataforma de impresión sobre el émbolo y, por tanto, sobre la masa a extruir. Este control continuo permite caracterizar la masa semisólida que se imprime pudiendo establecer los parámetros más adecuados de impresión in situ, pudiendo llegar a automatizar completamente el proceso.