SU391902A1 - CHICKEN MACHINE - Google Patents

Description

one

The invention relates to the field of foundry, namely, to chill machines mainly for casting under low pressure.

Chill machines are known, including split chill molds, movable chuck plates and mechanisms for chill casting and ejecting the casting with pusher plates.

However, in these machines, with the open position of the chill mold, the pushers protrude above the working surface of the chill mold, making it difficult to clean and color. In addition, during the subsequent closing of the chill mold, a layer of paint, scraping off the pushers, enters the cavity of the chill mold and then into the casting.

The purpose of the invention is to reduce the load on the mechanism of the chill parts connector and provide ease of maintenance.

This is achieved by the fact that on the opposite pusher plates there are opposite pushers interacting with each other at the ends.

FIG. 1 shows a chill machine, general view; FIG. 2 - section along the AL on the fit. 1 (at the moment of undermining the left half-cocoon); in fig. 3 is a section along BB in FIG. one.

On the basis of the chill machine, the mechanism 2 for moving the lateral tuck plates and the mechanism 3 for lifting and turning the upper rod are mounted. The mechanism 2 of the movement of the side plates consists of four transport cylinders 4, 5, rods 6, 7, which are connected with cross-pieces 8 with the corresponding side peck plates 9, 10, on which the left 11 and the right 12 semi-hems are fixed. Hydrocylins. 4, 5 are designed only for the force of pressing and the movement of semicokili after their explosion. On PLITs 9, 10, they are mounted on an under-tearing hydrocipdry, respectively, 13, 14, calculated for the force of detonation of semicokiliy 11, 12, much higher than the force required to move semicoquille after detonation.

The rods 15, 16 of the hydraulic cylinders 13, 14 are connected to the pusher plates 17, 18, on which the pushers 19, 20 and the counter thrusters 2 / are located. 22. Moreover, the counter thrusters 21, 22 are located opposite to each other, and

the closed position of the noulocilli //, 12 abut one another at the ends.

When using a low-pressure die casting machine, a casting device 23 is placed under the machine.

After the metal is poured from below (under low pressure by means of a casting device 23), from the top (by the usual gravitational method) and crystallization of the casting 24 is fed, the piston cavities 13, 14 are blown into the piston cavities.

the transport cylinders 5 are thereby connected to the drain, and the cavities of the hydraulic cylinders 4 are locked.

Ta: since the rod / 5 hydrocylide 13 cannot move forward (this is done by locking the cavities of the hydraulic cylinders 4), then the hydraulic cylinder 13 itself moves with the left side plate 9 and half-cocoon 11 relative to the stationary rod 15.

By pushing away the pushers 19 from the casting 24 and the counter-pushers 2 from the counter-pushers 22, the half-nut 11 is undermined by a short distance. At the same time, the rod 15, the pushing plate 17 and the pushers 19, the counter pushers 21, the casting -24, and therefore the mechanism 3 for moving the upper rod, and the filling device 23 do not perceive the forces of detonation and remain stationary.

At the end of the undermining of the left semi-coconut 11, a similar switching of the transport and blasting hydraulic cylinders 4, 5, 13, 14 takes place; at the same time, the right half-cocoon is undermined. Since during the undermining of both half-kills, 12, the counter thrusters 21, 22 rest on each other, the force required to move the semi-coal 11, 12 at the time of the undermining is not transmitted to the casting 24.

AND

The full opening of the semicokyls //, 12 is carried out by the transport hydraulic cylinders 4, 5, after which pressure is applied to the pinholes of the blasting hydraulic cylinders 13, 14; the pushers 19, 20 and the counter pushers 21, 22 are retracted flush with the working surface of semi-kills //, 12. Then the upper rod, lifting together with the casting 24, separates it from the filling device 23 and turns, after which it rises further, at the end of which casting 24 collides.

Subject invention

Chill machine mainly for low pressure casting, including split chill mold, movable under-chill mold

plates and mechanisms of the chill mold connector and pushing out of the casting with pusher plates, characterized in that, in order to reduce the load on the chuck mechanism of the chill parts and ease of maintenance, it is equipped with counter pushers mounted on the pusher plates in a vertical plane opposite to each other and interact one With the other ends.

Fig.Ch

Aa

Van. 2