SU1133027A1 - Press mould for molten metal pressing of hollow articles - Google Patents

Abstract

PRESS-FOSCH FOR LIQUID STRAWING OF HALF CREAMS containing a spring-loaded matrix, a base and a punch, characterized in that, in order to obtain a casting with a layer (inner surface), the punch is provided with holders, in which the sign parts for the lifting rod are made.

Description

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The invention relates to a foundry, namely, to stamping castings with complex internal cavities. A known detachable form for a liquid punch, comprising a punch associated with the upper hydraulic press, a lifting conical matrix embedded in the cone of the yoke and secured on four spring-loaded racks mounted on the mounting plate, on which the floating metal spring is mounted on the spring elements, and mounted on the mounting plate, on which the floating metal spring is mounted on the spring elements, and mounted on the mounting plate, on which the floating metal is installed, by means of spring elements, and mounted on the mounting plate, on which the floating metal core is installed by means of spring elements, and mounted on the ejector plate, on which the floating metal core is installed by means of spring elements, and mounted on the ejector plate, on which the floating metal core is installed by means of spring elements, and mounted on the ejector plate, on which the floating metal core is installed by means of spring elements, and on the ejector plate, on which is installed the floating metal-tube, by means of spring elements, and mounted on the ejector plate, on which the floating metal-wire is mounted by means of spring elements, and on the ejector plate, and on the floating plate, the floating earthing elements are fixed by means of spring elements and mounted on the ejector plate. , screwed onto the stock of hydraulic pumping press. . After the metal is poured into the matrix, the punch is lowered into it, displaces the metal and forms a casting. & The tickler raises the die, which comes out of the cage and is opened, since each part of it has a protrusion on the tapered surface, a swallow of tail tail that goes into the groove on the holder cone. Such a matrix makes it possible to obtain parts with a complex external surface 1. The disadvantage of this device is the impossibility of obtaining hollow castings with internal surfaces of a complex configuration. The closest to the technical solution proposed is a mold for a liquid (A spring with a spring loaded). die, pusher, punch, removable ring. The mold is designed for deep casting of the molds. The matrix with the base forms a working cavity and a continuous metal receptacle f 2 Disadvantage The well-known mold is that it is impossible to produce hollow castings with a complex inner surface and with a subroutine. Entire inventions are to produce castings with a complex inner surface. The aim is to ensure that the mold is molded into hollow castings. containing a spring-loaded matrix, a base and a punch, the latter is provided with holders in which sign portions for a single rod are made. FIG. t depicts a mold in its original position; in fig. 2 shows section A-A in FIG. I; in fig. 3 - the same in the final position at the moment of the installation of the casting; in fig. 4 shows a section BB in FIG. 2; on . FIG. S - mold at the time of extraction casting. The mold contains a punch |, provided with holders 2, supporting sign parts 3 for a single rod 4 and a conically dismountable vertical matrix consisting of parts 5 with protrusions 6 mounted in a conical yoke 7 fixed on four spring-loaded racks 8, mounted on. mounting plate 9. A floating metal reservoir 10 is installed on the plate 9 by means of spring struts 11. The metal base (and the receiver 10 is decorated with an ejector 12. The holders 2 are made matching with the inner surface of the matrix (Fig. 4) with the internal surface of the matrix, holders 2 and a punch 1, a working cavity 13 is formed for forming the outer surface of the casting. Outside the punch there are made ledges 14 for closing the matrix parts 5 installed with the possibility of movement along guide rails 15, like a dovetail, which are fixed in the cage 7. The device operates as follows: In the initial position, a one-time rod 4 is installed in the holders 2 of the punch 1, for example, made of an instant-soluble mixture.The liquid metal 16 is poured into the metal receiver 10, the punch is lowered, 1 together with the rod 4, until the ledges to come into contact with the matrix portions 5. Continuing to move down, the punch 1 causes the matrix portions to fall along the guides 15 into the taper of the yoke 7. When closed, the matrix portions 5 form a cavity 3, inside which there is an evolving rod 4 that forms the outer the morning hole or undercut in the casting 16. The rod is fixed with parts of the die and significant parts 3. Continuing to move as one, the punch 1 and the matrix carry the sleeve 7, compressing the spring of the pillars 8, with the projections 6 entering the metal receptacle 10. The metal 17 is displaced into the working cavity 13. The downward movement continues until the end of the molding of the casting. When the punch is stationary, the metal is compacted about its complete solidification. At the end of the hardening, the punch 1 and the pusher 12 move upwards; at the same time, the yoke 7 rises under the action of the springs of the uprights 8, selecting a free wheeling against the stop in the uprights and stops. The punch with the casting 16 and the pressure rails 18 continues to run upwards, and draws behind itself the portions 5 of the die from the yoke 7. The die, moving along the dovetail type guides 5, breaks and releases the casting. The casting for Press residue 18 is removed from the punch. The use of the invention allows to produce castings with holes of complex configuration, which completely eliminates machining in the manufacture of parts.

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Claims (1)

PRESS FORM FOR LIQUID STAMPING OF HOLLOW CASTINGS / containing a spring-loaded matrix, base and punch, characterized in that, in order to obtain castings with a complex inner surface, the punch is equipped with holders in which the iconic parts for a single core are made.