SU1168328A1 - Press mould for die casting - Google Patents

Abstract

PRESS-FORM FOR CASTING UNDER PRESSURE, having several connector planes and containing a fixed half-form, and a movable half-form with a solid mounting, a punch plate, a removal plate, a yoke connected by limiting bars with a fixed half-form, columns fixed in the punch plate sleeves, interacting with the speakers and placed in the holder and the device for fixing the holder, characterized in that, in order to increase the reliability in operation, the device for fixing the holder is made in the form of an electromagnet, installed around the guide sleeve and step-down transformer, the secondary winding of which is connected on one side with the electromagnet, and on the other through detachable contact with the fixed half-form, while the elements of the fixed half-form, limiting rods, sleeve, columns and guide bushings are made of non-magnetic conductive material.

Description

The invention relates to the field of foundry, in particular, it relates to molds for casting pores, pressures of the horizontal type, and can also be used in the manufacture of parts from a formation of masses, mainly from thermoplastics. The aim of the invention is to improve the reliability of the operation of the mold. In FIG. 1 shows a mold, a cut; in fig. 2 - the same, in the closed state before pressing in, side view; in fig. 3 is the same at the time of opening along the plane of the connector 1J in FIG. 4 is the same at the time of opening along the planes of the connector 1 and Tj in FIG. 5 - the same J at the time of opening along the plane of the connector 1 - 111 and removing the part from the mold with a plate

removal.

The mold consists of a movable and fixed half-form and has three planes of the connector. The movable half-form contains an anvil plate 1 connected to the plate 2 of the pushers by screws 3, pushers 4 connecting the plate 5 to the plate 2 to the pushers, a flange 6 which is connected to the intermediate plate 7 by screws 8. The guide columns are fixed to the plate 7 and the plate 9 10, the rod 11 and the divider 12. The coaxiality and accuracy of the plates 7 and 9 are ensured by the pins 13. The columns 10 move in guide sleeves 14 fixed from being turned and displaced by screws 15. The sleeves 14 are mounted in the sleeve 16 in which the working cavity 17 is formed. Motionless floor the form contains a flange 18 connected to the fixed plate 19 of the fastening and the thrust plate 20 by screws 21. The clip 16 is connected to the fixed half-form by restrictive bars 22, on which a moving contact 23 is installed, which interacts with the fixed contact 24. On the sleeve 14 there is an annular electromagnet 25, included in the secondary winding 26 step-down transformer 27. This forms

details the process of manufacturing parts takes place in 3 stages. In the first stage (Fig. 3) of the mold opening, a connector is made along plane 1, which ensures that the central sprue 30 is removed from the fixed half of the mold. As a result of the magnetic field around the sleeve 14 and the column 10, the sleeve 16 is held on the column 10 until it leaves the fixed half-form.

Upon further movement of the movable half-form to the left, the cage 16 will be braked by the plate 20 with the help of a gland 22. the fixed half-form along plane 1, with the contact 23 coming out of the contact 24, the electrical circuit is opened and the magnetic field from the side of the electromagnet 25, the column 10 and the sleeve 14 on the sleeve 16 stops its action. In the third stage (Fig. 4), when the column 10 leaves the cage 16, the movable half-form opens completely with the fixed half-form. The removal plate 5 is moved from the pushers of the machine system, and extracts parts 17. a chain consisting of wires 28 and 29, columns 10, plates 19 and 20, and guide sleeves 14. Central gate 30 is made in runner BTyjv 31. Fixed flange 18 , plates 19 and 20, Tga 22j divider 12 and gating bushing 31 are made of conductive non-magnetic steel of ausmena class. The mold works as follows. In the closed state of the mold, the electrical circuit; the connecting wires 28 and 29, the plates 19 and 20, the sleeve 16, the sleeve 14, the columns 10, the electromagnet 25 and the contacts 23 and 24 are closed. After pressing the mold with plastic or metal pouring and subsequent solidification

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Claims (1)

PRESS-FORM FOR PRESSURE CASTING, having several connection planes and containing a fixed half-mold, and a movable half-mold with a fastened plate, a punch plate, a removable plate, a clip connected by restrictive rods with a fixed half-mold, columns fixed in the punch plate, guides bushings interacting with the columns and placed in the cage and the clip fixing device, characterized in that, in order to increase the reliability in operation, the clip fixing device is made in the form of an electromagnet, installed around the guide bush and the step-down transformer, the secondary winding of which is connected on one side with an electromagnet, and on the other, by means of detachable contact with the fixed half-mold, while the elements of the fixed half-mold, restrictive rods, clip, columns and guide bushings are made of non-magnetic conductive material. SU „., 1168328