SU389881A1 - CASTING MACHINE - Google Patents

Description

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The invention relates to foundry, in particular to machines for casting under pressure.

The known casting machine, comprising a body and a frame suspended from it on elastic elements, is mounted on a mold with a locking mechanism and a vibrator.

The disadvantages of the known machine are the impossibility of obtaining castings without gas porosity, as well as the necessity of turning the reinforcement before installing it into the mold.

The purpose of the invention is to improve the quality of castings. This is achieved by the fact that the frame is rotatable and provided with a pressing unit placed coaxially with the form, the form being equipped with the directing element for the orientation of the reinforcement.

FIG. 1 shows the proposed injection molding machine; in fig. 2 is the same, view A in FIG. one; in fig. 3 - the same, “id B in FIG. 2

The injection molding machine comprises a housing 1, on which it is hinged through elastic elements 2, for example, rubber shock absorbers, and pins 3 are installed to pivot paiMa. The pivoting frame consists of upper and lower traverse 4 and 5, which are fixedly connected to each other by guide columns 6. In the lower traverse there is an ejector 7.

The casting frame, the locking mechanism, the pressing unit and the vibrator are placed on the rotary frame. The locking mechanism includes a movable yoke 8 and power cylinders 9. The movable half-form 10 is installed on the yoke 8, and the fixed half-form // is on the yoke 4. Enter the yoke 8 by sliding the column 6. For the orientation of the reinforcement (rotor) in the fixed half-form // fixed guide columns 12, free ends

which are passed through the movable zero shape 10. The pressing unit consists of the body 13, mounted on the crosspiece 4, the pressing chamber 14, the replaceable plunger 15 and the power cylinder 16. The vibrator contains

electric motor 17 and debalance 18 fixed on its shaft.

The machine works as follows. The pivoting frame is raised for loading (angle a: 130-140 °). The rotation is carried out, for example, by an electric hoist 19 fixedly mounted on the monorail 20. Heated armature 21 heated to 400-500 ° C is directed onto the guide columns 12 so that the shaft of the mandrel 22 is directed toward the side

the movable half-mold 10. Then the half-molds 10 and 11 are closed by means of power cylinders 9. After understatement of the form, the electric hoist 19 is given a command, for example, by means of a limit switch to move the rotary frame to the lower position (angle 0 °). When the turning of the frame through the specified angle (), the switch switches the dispenser to issue a certain portion of the melt to the pressing chamber 14 through the filling hole 23. The filling and lowering speed of the rotating frame is coordinated so that the output of the turning frame in the vertical position (angle) is ahead of the end of the pouring . Then, a vibrator and a pressing cylinder are turned on, producing a sub-press molding. After the melt crystallizes, the vibrator is turned off and the swing frame is raised to the unloading position (angle).

In the process of lifting, the mold opens and consistently ejects the casting from the mold half 11 by plunsler 15, and from

the molds 10 by the ejector 7. The casting is removed from the guides of the OlonOK 12 and transported to the post-processing position. The casting cycle is complete and the mask is ready to repeat the cycle.

The subject invention

A casting machine containing a case and a frame mounted on it on elastic elements, on which a form with a locking mechanism and a vibrator are fixed, characterized in that, in order to improve the quality of the castings, the frame is rotatable and equipped with a pressing unit mounted coaxially with a form, the form being provided with guides for mounting the reinforcement fixed in its fixed part.

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