SU1430177A1 - Die-casting mould for investment patterns - Google Patents

Abstract

The invention relates to a foundry, and therefore to an in-situ casting of model m. The purpose of the invention is to reduce the changeover time of a press mold. The mold contains base plate I, fixed o6oih: 8, cover 1 1 fixed holder, butt-free holder 2. spring 5 movable oboy.my. iodk, 1ad plate 14, adjusting frames 15, onorium frame 20, pillars 21, p, 1t basis P1 22, pressing plate 24, push out mechanism with central rod 19 in sleeve 18. Mobile and stationary oboy.my made opening, for example in the form of a folding. This gives the opportunity, do not remove the Ness form with. manitin, to change shifts; 11) With this requirement, the height of the zero form is compensated by the appropriate choice of shims. 1 zi f-ly, 4 ill.

Description

/ / t

3 3 S) (IS 20 g;

FIG.

(L

with

22

The invention relates to casting production, and more specifically to precision casting on produced models.

The purpose of the invention is to reduce its changeover time.

FIG. 1 shows a mold; in fig. 2 - the same, side view; in fig. 3 - mold with clips; in fig. 4 - half-form.

The mold contains a support plate 1, a movable sleeve 2 with a clamping device 3, flaps 4 and a lid 5, which is one of the sides: the sleeve 2 and can be rotated around the axis 6, installed in the internal cavity A of the sleeve 2 semi-: form 7; the fixed holder 8 with the entrance of 1 into its composition with the clamping device 9, the hinged screw 10, the lid 41 of the rotary axis 12, and is one of the sides of the fixed holder 8, into the internal cavity E of which the foam half of the mold 13 is installed, base plate 14, adjustment frames 15, ejector plate 16 with pushers 17, central bushing 18 and central rod 19, intermediate support frame 20, pillars 21, p; 1t base 22 with fixer 23; clamping plate 24 with clamping screws 25.

The transfer of the mold and its preparation for work is carried out without removing the || ress () molds from the casting machine as follows.

D.: | the installation of half-molds 7 and 13 in the cage 2 and 8, it is necessary to open the press; for this, the flaps 4 and 10 are folded back, the covers 5 and 11 rotate axles x 6 and 12 in the radial direction, opening the cavities A and B. In cavity A, the mold half is installed 7 and the clamp 5, turning around axis 6, closes the perimeter clips 2 by means of a hinged screw 4 and preliminarily fixed (for preventing PI from falling out of the mold half) by a clamping device 3. Then the mold 3 is set into the cavity 5, the mold 1 is inserted, the ejector plate 16 with the pushers 17, central core 19. Pre-ejector plate screw screws 25 to the presser plate 24.

about 5

0 5

0

five

Between the backing plate and the support intermediate frame 20, adjusting the frame 15 is established, by which the required height of the half-mold 13 is selected. Then, turning the cover 11 on the axis 12, close the perimeter of the sleeve 8 with the help of the folding screw 10. The half-form is fixed in advance by a clamping device 9. When the half-mold 13 is installed in cavity B, the central rod 19 with sleeve 18 is passed into the opening of the pressure plate 24 and inserted with the shank into the opening of the base plate 22, where it is fixed against axial movement by the lock 23. the mold smykaets, self-centering of the mold halves occurs, after which they are permanently secured clamping devices 3 and 9, the ejector plate 16 from the jacks 17 is tightened with screws 25. The mold is ready for operation. Removing the half-molds is carried out in reverse order.

The proposed mold design dramatically shortens the changeover time and prepares it for work, since it does not require removal of the mold from the injection molding machine, its complete disassembly and assembly, and the replacement of half-molds with the appropriate adjustment knobs selected. Mows are made through open cage covers. This eliminates the need for spare molds, since the change of the half-form in the mold of the proposed design is simple and fast.

Claims (2)

Invention Formula . A mold for melted models, comprising a base plate, a movable and fixed cage with half-molds, pillars, a base plate, a pusher plate and adjustment frames, characterized in that, in order to reduce its changeover time, one of the sides of the movable cage and with it in the flat plane, the side of the fixed cage is made rotatable in the form of hinged lids. 2. A mold according to Claim 1, characterized in that it is provided with hinged screws designed to cooperate with hinged lids. FIG .. / / 239815 15 20 Fig.Z h / ll1 FIG. 14 ; 22 i 18 h  /9