SU1018790A1 - Chill mould - Google Patents

Abstract

COKILE; containing a movable half-form with a spring-loaded grip and a thrust, a fixed half-form with a hinged lever, and a sand core with a retainer installed in the half-form connector, characterized in that, in order to expand the range of the castings, the fixed half-form is equipped with a copy-groove bracket, - a cylindrical shank placed in the arm groove of the bracket and connected to the lever by means of an oval hole made in the lever.

Description

eight

figure 1

(L

00 vj

with

eight

596

The invention relates to foundry, namely to the design of metal molds - chill molds.

The closest to the proposed technical essence and the achieved effect is a metal mold containing a movable half-form with a spring-loaded grip and a thrust, a fixed half-form with a pivotally fixed lever, and a sand core installed in the connector with a retainer rigidly connected to the lever. Extraction of the casting in this chill is carried out by rotating the lever. In this case, all its points and the points of the clamp rigidly connected with it move along an arc of a circle around the axis of rotation of the lever. Therefore, it is impossible to extract castings, the configuration of which is different from the bodies of rotation, for example, castings, the outer walls of which are parallel to the axis of rotation and perpendicular to the plane of the connector of the mold 1.

The disadvantage of this chill is a limited range of molded products.

The purpose of the invention is to expand the range of the castings.

This goal is achieved by the fact that in a mold containing a movable half-form with a spring-loaded grip and a thrust, a fixed half-form with a hinged lever, and a sand core with a retainer installed in the half-form connector, the fixed half-form is provided with a bracket with a copy groove, and the fix-rod pin has a cylindrical shank placed in the copy groove of the bracket and connected to the lever by means of an oval hole made in the lever.

FIG. 1 shows a metal mold, a vertical section along the plane of the connector; in fig. 2 is a section AA in FIG. one; in fig. 3 shows a section BB in FIG. 1 at the end of the rectilinear movement of the lock; in fig. 4 - the same at the end of the stroke of the movable half-form.

The mold contains a fixed half-form 1, a movable half-form 2, a sand core 3 with a latch 4 fitted with a cylindrical shank 5, a bracket 6 with a copy groove 7, a lever 8 with an oval hole 9. Shank 6 of the clamp 4 is passed through the copy groove 7 of the bracket 6, as well as through the oval hole 9 of the lever 8, whereby the latch 4 has mobility relative to the lever 8. The lever 8 is fixed at one end pivotally on the axis 10 in the fixed half-form 1. The mobile half-form 2 is equipped with a pull 11 and a C-shaped clamp 12 with a bevel 13 spring-loaded with respect to the movable half-form 2 spring 14 and rotationally fixed on the axis 15. At the ends of the lever 8 and ti 11 mounted rollers 16 and 17.

Kokil works as follows.

After pouring the melt and crusting on the casting 18, the movable mold half is retracted. In this case, the gripper 12, interacting with the lever 8, rotates the latter around the axis 15.

Since the cylindrical shank 5 of the retainer 4 is passed through the copy groove 7 of the bracket 6 and through the oval hole 9 of the lever 8, the shank 5 is forced to move simultaneously along the copy groove 7 and the oval hole 9, and the movement path of the lock 4 completely repeats the configuration of the copy groove 7. Shape The copier groove 7 is such that the length of the latch 4 with the casting 18 moves in a straight line, and then along the arc of a circle of radius R around the axis 10. At this time, the roller 16 is disengaged from the C-shaped gripper 12 and further moved e arm 8 with a clamp 4 is effected t goy disclosure 11. After casting chill mold 18 is removed upward.

The chill is assembled as follows. After the sand core 3 is installed on the clamp 4, gyuloforms 1 and 2 are clamped, while the movable half-form 2 interacts with the lever 8 through the roller 16, and turning the lever 8 around the axis 10 returns the clamp 4 with the rod 3 to the initial position. In this case, the shank 5 of the retainer 4 falls into the copy groove 7 of the bracket 6, which is guaranteed by the configuration of the copy groove 7 and the dimensions of the oval hole 9 of the lever 8, through which the shank 5 is passed. Finally, the retainer 4 is exposed by half-shapes 1 and 2 when they are fully closed. The wedging of the lever 8 when closing is eliminated due to the mobility of the spring-loaded C-shaped grip 12, equipped with a bevel 13. The rollers 16 and 17, mounted on the lever 8 and t 11, are designed to reduce the wear of the chill elements.

The invention makes it possible, using rotation of the lever, to carry out the necessary linear movement of the rod retainer with the casting in the direction of movement of the movable half-form, and thereby solve the problem of extracting castings of any configuration, obtained in a chill mold with a single plane of the connector.

The expected economic effect of 50.0 thousand rubles. in year.

/ 7

/ Jf

Claims (1)

COGIL; comprising a movable half-mold with a spring-loaded grip and traction, a fixed half-mold with a pivotally mounted lever, and a sand rod with a clamp installed in the half-mold connector, characterized in that, in order to expand the range of the obtained castings, the fixed half-mold is equipped with a bracket with a copy groove, and a rod retainer - a cylindrical shank placed in the copier groove of the bracket and connected to the lever by means of an oval hole made in the lever. figure 1 i