SU908505A1 - Metal mould - Google Patents

Description

one

The invention relates to foundry and can be used on die-casting machines.

The closest to the proposed technical essence is a chill mold, containing a fixed and movable extreme and intermediate pho | mooring parts with parallel planes of a connector, a shell for a casting bowl rigidly connected to the fixed part, and runner inserts movable in direction along the gate relative to the shaping parts G1.

However, this design is inoperative in cases where the chill mold contains more than two shape plates with parallel connectors, and, moreover, is not applicable to chill molds intended for installation on serial single-position chill machines.

The purpose of the invention is the expansion of technological capabilities.

This goal is achieved by the fact that a known chill mold containing fixed and movable extreme and intermediate molds with parallel separating planes, a shell for the casting bowl rigidly connected to the stationary part, and gating contributions moving in the direction across the gate relative to the forming parts are provided with upper

to rolling pins for axial movement of the shaping parts through them, the lower rolling pins rigidly connected with the intermediate part and mounted on the free ends of the skallers between one

IS of gating inserts and a fixed part on the upper rolling pin with adjustable stops, while the gating inserts are mounted on the upper rolling pins, one of which is made with a longitudinal groove for moving the finger, which is provided with the second sprue insert, and the lower rolling pin is fitted with an intermediate and

fixed parts of the swiveling bolt.

FIG. 1 shows a closed die in FIG. 2 - chill mold with a gap formed between the intermediate and stationary parts of the chill mold; in fig. 3 - fully open metal mold.

The die contains the movable part 1, the fixed part 2 and the intermediate part 3, the upper rolling pins 4 and the lower rolling pins 5. The rolling pin is rigidly connected with the intermediate part 3 of the chill mold. On the fixed part 2 there is a shell 6 for the sprue bowl. A sprue liner 7 containing a finger 8, moving in a groove 9 of the upper rolling pin 4, and a sprue liner Yu freely mounted on the rolling pin 4 are mounted on the upper rolling pin. Adjustable stops 11 are mounted on the rolling pin 4, On the rolling pin 5 there is a rotary latch 12 with a tooth 13, and in the rolling pin 5, a groove 14 is made for the latch 12,

Kokil works as follows.

After solidification of the castings 15 and 16, the moving part 1 of the mold is moving (in the drawing it is to the left). Due to the fact that the latch 12 is inserted into the grooves located on the fixed part 2 and the intermediate part 3, the mold is moved together with the movable part 1 until the latch 12 accepts the horizontal position in the groove 14 of the lower rolling pin 5, Together with the parts 1 and 3 the chill mold is moved by the gating insert 7 with the finger 8, the sprue with the casting 15, located in the movable part 1 and the intermediate part 3., Is cut off from the sprue bowl.

Upon further movement of the movable part 1, the mold 17 stop of the rolling pin S stops the intermediate part of the mold through the rolling pin 5, turning the latch 12 to a horizontal position in the groove 14 of the rolling pin 5. When the movable part 1 is further moved, when the finger 8 reaches the left edge of the groove 9, the sprue insert 7 with the casting stops, pushing it out of the moving part 1 of the mold,

If the casting 15 remains in the intermediate part 3 of the chill mold, it is removed as follows.

The stop 18 is installed on the upper rolling pin 4 so that when the moving part of the chill mold to the left in the same direction moved the upper rolling pins 4, the Groove 9 upper

the rolling pin t is not a finger 8 with a gating element and a casting 15 to the left, removed from the part of the three-hour mold. Due to the reverse bias on the runner, the latter is not detached from the casting.

The removal of the second casting is carried out as follows. The stop 11 on the rolling pin 4 when the latter moves to the left cuts the sprue from the sprue bowl and pushes the casting through the sprue element.

In the intermediate part 3 chills

the casting cannot remain when moving parts 1 and 3 of the chill mold due to the presence of reverse gradients on the casting and runner liner 1O,

After the castings are removed, the chill mold is assembled by a rolling run. Part-1 chill to the right. The latch 12 returns to a vertical position due to the sliding of the tooth 13 along the inclined plane of the groove 14,

The use of the proposed device provides complete mechanization of operations for the removal of castings in metal molds, consisting of three or more formative parts with parallel connectors.

Claims (1)

1. USSR author's certificate No. 407638, cl. At 2211 15/00. 1972. (Figure 1 (fu.2