SU470362A1 - Die casting mold - Google Patents

Description

The mold is designed to produce castings with holes, undercuts, windows, the axes of which are not parallel to the motion of the fixed half-mold. Known injection molding molds include fixed plate, holder and forming insert, forming a fixed half-form, and racks, base plate, holder, forming inserts, ejector plate, rotary pushers, rods and wedges, forming a movable semi-form. The mold with a wedge-finger mechanism is reliable and has proven itself to work. The disadvantage of such a press form is the difficulty of securing the wedge on the fixed form. In order to simplify in the proposed mold, the wedge-fingers are made with through-slots for the passage of the side rods, cuts in sections of the molds that form a wedge for withdrawing the side rods from the casting, and protrusions in the form of a wedge for inserting the side rods into the mold cavity are connected plate and interact with the ejector and the fixed half-form, and the side rods are equipped with shaped flanges with sections that interact with the corresponding sections on the wedge of the x-fingers. FIG. 1 shows the proposed mold in section; in fig. 2 shows the flipper. The mold includes fixed pl "TU 1, the holder 2 and the forming insert 3, forming a fixed half-form; as well as pillars 4, backing plate 5, clip 6, inserts 7 for forming the outer contour of the casting 8, plate 9 with ejectors 10, counter pushers 11, drive plate 12 receiving forces from the pushers 13 of the machine, wedge finger fingers 14, each of which has a through groove a, a cut forming a wedge 15, and protrusions 16, made in the form of a wedge, and side rods 17, forming a movable half-form. Each of the rods 17 has a shaped bead 18, a slice 19 corresponding to the slice forming a wedge 15 and a slice 20 corresponding to the slice on the projections 16. When the mold is opened, the movable mold half moves to the left, while the drive plate 12 abuts against the ejectors 13. Maschiny and keeps the wedge fingers 14 from moving. The side bars 17, which are located in the forming inserts 7 and through the groove a. move together with the movable half-form, the sliding side surfaces in the grooves a, and in slices 19 but the wedge 15, and exit ich

The castings, after which the plate 9, abuts against the drive plate, the ejector 10 pushes the casting 8 out of the mold, removing it from the rod 21.

When the mold is closed, the wedge-fingers abut against the fixed half-form, return the drive plate 12 to its original position, while the projections 16 grab the side rods behind the shaped beads 18, which by a cut 20, slides along the wedge surfaces of the projections 16, the rods enter the cavity of the form fixing them in the starting position. Plate 9 and pushers 10 are retracted to the initial position by counter-pushing 11.

Subject invention

Die casting mold, including fixed plate, holder and forming insert, forming a fixed half-form, and racks, backing plate, holder, forming insert, pusher plate, counter pushers, rods and wedges, forming a movable half-shape, featuring so that, in order to simplify it, the wedge-fingers are made with through-grooves for the passage of the side rods, cuts in the sections of the grooves forming a wedge for withdrawing the side rods from the casting, and protrusions in the form of a wedge for entering the side The new rods into the cavity of the mold are connected by a drive plate and interact with the pushers and the fixed half-form, and the side rods are provided with shaped collars with cuts interacting with the corresponding cuts on the wedge of the x-fingers.

LD

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FIG. 2