SU54577A1 - Tool for ejecting and pulling out blanks from molds - Google Patents

Description

There are known devices for ejecting and pulling out the ingots from molds in the form of tick-borne grippers fixed on a common frame and rotated 90 ° relative to each other, some of which serve to grip the pig and others to grip the mold, using a screw as the ejector.

A distinctive feature of the proposed fixture is that, in order to automatically turn off the clamping of the pincers with a screw, a coupling coupled to it is used, which acts when lifting the screw on the rocker supporting the pliers.

In FIG. 1 shows a general view of the proposed fixture on crane pliers; FIG. 2 is a section taken along line EF of FIG. one; FIG. 3- the same along the line ABCD of FIG. one.

The device for ejecting and pulling the blanks out of the molds is mobile, mounted on the crane tongs 16 (Fig. 1). In the middle of the metal frame 7, four metal posts 2 and two cast-iron heads 3, having screw holes 4, are reinforced.

(Fig. 1). In the lower part of the frame there are on each side two pillars 5, which, when ejecting the blanks from the closed molds, abut the edges of the latter. two cast iron heads 3 have a nut for screw 4, made in the shape of gear 6. On the upper threaded part of screw 4, the cross-shaped coupling 14 is fixed, moved by a screw and guided by struts 2. The upper part of the screw without cutting passes through the central hole of the rocker arm 7, on which There are tongs 8 that capture the blank when pushing the last of the closed (with bottom) molds. The initial lower position of the rocker is supported by transverse straps 9 (Fig. 1).

The motor 10, located in the upper part of the frame, rotates the nut-bristle b by means of a belt 11, pin 12 and bevel gear 3. When the nut-gear 6 rotates in the direction of cutting the screw, the latter rises and the screw lowers in the opposite direction; while the cast iron heads 3 perform the role

to the author's testimony of V. F. Bogdanov

No. 54577

fig jii