ES450611A1 - Machine to manufacture aseptic masks of a single use. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Machine for making single-use aseptic masks, of the type comprising a body of laminar structure, such as paper or filtering, conveniently pleated and kept stable by adherent or rubber tapes fixed to the ends of said pleating, and whose tapes retain a turn to elastic loops that integrate the fastening means of the mask in the ears of the user, essentially characterized by the fact of comprising a hollow cylindrical table rotating on its axis, inside which a constant emptying suction is made; because the outer surface of said cylindrical table is divided into sections with housings, according to the dimensions of the masks to be obtained; two feeders are provided for each adhesive paper tape, with their corresponding guides, whose tapes are deposited transversely on the surface of the table, remaining with its adherent or gummed area in the air; two elastic wire feeders are provided, integrated by two cones-coils, whose threads are driven by respective guide-threads distributors in simple back and forth, loading the wire to a collector in zigzag, forming a wave, with what remains the thread on spikes that in their moment of delivery are made to coincide, one end of the wave being deposited on the strip of paper, by its mordant surface, while the other end of the wave is deposited in an area of the table where the thread is retained by suction; by providing a supply coil of filtering fabric in band, which suitably guided, longitudinally to the table, is forced to pass through a shaper where it is apllyed along the band; by providing a first set of cylinders of constant drag of the belt, and a second set of cylinders of intermittent tow; because said second game commands a blade transverse to the band, which is sectioned, resulting from said cut a pleated format that is deposited on the area destined to join with the adhesive or rubber tapes, while the format on the table is linked., by suction; by having two tapes of adhesive paper or gummed, delivered by a procedure similar to that described above on the pleated format, completing the assembly of the components of the mask; because there is a set of elastic rollers that press against the table the complex formed at each end of the format, integrated by the adhesive or adhesive tape, elastic thread, filter sheet and the second tape or adhesive, all linked to the table by suction and continuously until reaching a transversal blade that cuts in its incidence to paper-thread-paper brewing, leaving the mask free of the points of incidence that have formed it, until it reaches a detachment area, resulting from eliminating its suction, with which it falls by gravity towards a conveyor belt to the effect. (Machine-translation by Google Translate, not legally binding)