SU1444054A1 - Die-casting mould for making investment patterns - Google Patents

Abstract

The invention relates to a foundry and can be used on automatic machines for the manufacture of models produced. The purpose of the invention is to expand the range and improve the quality of manufactured modems. This goal is achieved by the fact that the mold containing a movable mold with a pressing channel, a mounting plate 1, a block of plates 2 and 3 with forming inserts 11, a fixed mold with 13 sprue channel 14 and an ejector system 15, 16, 17 are equipped with a locking ring 12 and inserts 9 in the form of vertical shaped rods with inclined surfaces. The implementation of the invention improves the quality of the melted models, while reducing the labor intensity of producing the melted models, 3 sludge. with ."

Description

eight

/ 7

The invention relates to a foundry and can be used on automatic machines for the manufacture of models produced.

The purpose of the invention is to expand and improve the quality of manufactured models.

Figure 1 presents the proposed mold, front view; figure 2 is the same, top view; figure 3 - section aa in fig „1 (along the locking ring),

The mold consists of a movable half-form with a mounting plate 1 and an O-plate plates 2 and 3, which can, under the action of springs 4, keep the shaping cavity 5 closed until the end of the free stroke of the stop screws 6, the clamp 7 with the pressing channel 8, inserts 9, vertical shaped rods with inclined surfaces that are hingedly connected to the fastening plate 1 by the shoulders 10 and interacting with the surfaces of the molding inserts 11 and the locking ring 12 which have a fixed half-shape with different angles of inclination 13 with gating channels 14, ejector 15 and

16 and counter shooters 17.

one

The mold works as follows.

The model mass through the pressing channel 8 and the gating channels 14 e located outside the plane of the connector enters the shaping cavities 5. When the mold is opened under the action of springs -4, the block of plates 2 and 3 remains pressed to the fixed mold 13, while moving - .. the fastening plate 1 of the movable half-form with inserts 9. Due to the different inclination angle of the planes of the forming inserts 11 and the locking rings 12 when the end surfaces of the inserts 9 move with the fastening plate 1, the resulting gap allows turn the inserts 9 on the cylindrical shoulders 10 and go out with undercuts

0

five

five

0

0

five

0

five

shape inserts 1 1. The free stroke of the screws 6 is selected and the mold is opened along the main i plane of the connector. The models are removed by the pushers 15 and 16. When the mold is closed, the pushers are returned to their original position using the knobs 17. The Diclion is repeated.

The implementation of the invention allows for the use of the above design when supplying the model mass to the thickened parts of the melted model located outside the connector, ensures the quality of the models of the models, due to the exclusion of chips, breaks and deformation; At the same time, the labor intensity of manufacturing the models produced is further reduced by 12%, since removal of sprues from massive surfaces having a complex configuration is carried out using high-performance tools outside the mold "

Claims (1)

Invention Formula A mold for the manufacture of molded models, comprising a movable half-form with a pressing channel, a mounting plate, a block of plates with forming inserts, a fixed half-form with a sprue channel and a system of ejectors, with the aim of expanding the range and increasing the quality of the manufactured models by providing a supply of model mass to the forming cavities outside the plane of the connector; it is equipped with a locking ring; the inserts are made in the form of vertical shaped rods with inclined surfaces placed in the undercuts of the shaping cavities and pivotally connected to the fixing plate of the movable half-form, , and the block of plates at this time is made spring-loaded. dd Fig.Z FIG. 2: