SU1061924A1 - Mould for die casting - Google Patents

Abstract

PRESS FORM FOR CASTING UNDER PRESSURE, containing movable and stationary half-molds, split mold-forming VKL4DShSh1, filled with a conical outer surface and guiding elements and installed in the conical slots of the movable half-form, and shtangi with shoulders, mounted in a fixed half-shape, equipped with a frame. In order to increase reliability in operation, the movable half-form is equipped with spacer columns installed with the possibility of axial displacement. and spring-loaded latches, interacting with the forming inserts, while on the inserts are made shoulders, interacting with the shoulders of the rods, and the rods are equipped with collet, interacting with the spacer columns.

Description

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The invention relates to foundry, in particular to injection molding. Known mold for injection molding. containing a movable half-form with a fixed stem and a non-movable half-form with formative detachable liners, have a conical outer surface for their reliable closing. The inserts are removed together with the casting, and then with the help of devices) the blemish is removed from it (1. The disadvantage of this mold is that the extraction of liners and castings is laborious, which reduces the productivity of the process. The closest to the invention to the technical essence and the achieved result is a mold for pressurized, containing sub-and fixed half-molds, detachable formative liners made with a conical outer surface, mounted in conical heights of the movable half-form and equipped with plane-mounted levers that interact with the shoulders of rods fixed in a fixed half-form. inserts and half-molds are made guide elements 2 The disadvantage of this mold is low reliability of construction Applicants' presence hinged r1chagov interacting with shoulders schtang fixation and absence of forming the inserts in the open state. When operating such a mold, jamming of the hinged pinions and a shift in the forming molds is possible, which leads to the release of the mold from the system. The purpose of the invention is to increase the reliability of the mold. This goal is achieved by the fact that in a mold for casting under pressure, containing a movable and stationary half-form, detachable form-bearing inserts made with a conical outer surface, tü and guide elements and installed in the conical slots of the movable floor of the form, and rods with shoulders, mounted in a fixed half-form, movable half-form syabzhz {and spacer columns installed with the possibility of movement in the axial direction, and the spring-loaded clamps, interacting with the form vkladsch1ami them, np this vkladyshfs formed on the shoulders, shoulders interact with conductive bars, and rods provided with figs interacting with spacer; columns. 924J FIG. 1 shows a movable half-form, a general view; in fig. 2 shows section A-A in FIG. 1. In the conical slots of the lower half-form 1 there are installed detachable shaping inserts 2 having a conical outer surface 3 on which the recesses 4 are made. The inserts are moved along the guides 5 made in the form of projections and inserts 2 and grooves in the mobile half-form 1. Fixing inserts in the opened state are made by clamps 6 podpryazhenes 1 spring 7. Springs preloaded by nuts 8. Lia liners 2 are shoulder 9, interacting with the shoulders of the rods 10. Boards of the rods 10 are equipped with collet 11, interacting ones with the spacer columns 12 .ustanovlennymi a moveable die 1 to be axially displaced within the gap b. Rod 10 with collet 11 is installed in a fixed half-form. A rod 14 is mounted in the bottom mold half 13. The mold works as follows. After the working cavity is filled with metal and its crystallization, the mold is opened. During the opening, the casting is separated from the fixed half-mold 13, then the shoulders of the rod 10 gains the length of the shoulders 9 of the molding inserts 2 and carry them along, while the spacer column 12 mixes with the collet 11 in the gap. B The inserts 2, by mixing along the guides 5 and the conical surface 3, remove the castings from the rod 14 and open, freeing the side surfaces of the castings. Upon further disclosure of the mold, after the spacer column 12 selects its turn in the gap, the collet 11 will be released from the engagement with the spacer column. At this time, the liners 2 are fixed in the open position by the clips 6, by entering them in the recesses 4, and the shoulders of the rod 10 are released from the 1 lining with the shoulders 9 of the insert 2 in the opened state, a gap is provided between the liners and the collet when the mold is closed. After the casting is removed, the mold is closed. At this time, the collet 11 extends into the gap between the inserts 2. Then, due to an emphasis on the fixed half-mold 13, the inserts 2 are removed from the retainers and installed in the conical slots of the movable half-form 1. The collet 11 fixed on the rod 10 unlocks the cable 12. The mold is ready for a new cycle. The invention allows to increase the reliability of the mold performance in comparison with the basic object by 2 times.

GE

Claims (1)

PRESS-FORM FOR PRESSURE CASTING, containing a movable and fixed half-mold, detachable forming inserts made with a conical outer surface and guide elements and installed in the conical slots of the moving half-mold, and rods with shoulders installed in the fixed half-mold, characterized in that, with In order to increase reliability in operation, the movable half-mold is equipped with spacer columns installed with the possibility of axial movement, and spring-loaded clamps, interaction yuschimi with the forming inserts, wherein the inserts are made on the shoulders co-operating with shouldered rods and the rods are provided with collets interacting with the spacer columns. SU ,,,. 1061924 1 1061924 2