SU60119A1 - Apparatus for closing and unfolding two halves of molds in centrifugal casting machines - Google Patents

Description

In the known centrifugal casting machines, the closing of the molds is carried out by special levers under the action of the centrifugal force of the associated loads. At the same time, however, in the case of casting parts With a large surface, the pressure of the molten metal turns out to be so significant that the mold halves are necessary, in order to avoid metal flowing out between their adjoining edges to the outside, to be bolted, which takes a certain time, slow down this process work. In addition, in existing machines, the centrifugal force itself is set forth by the force that counteracts locking.

To eliminate these inconveniences, the proposed device is intended: It consists in that the opening halves of the molds in centrifugal molds are each provided with two shanks, one pair belonging to both halves of the mold, is designed under the action of

centrifugal force, which develops when it rotates, for ulara in a wedge bearing the shape of the carousel, in order to press one half of the form to the other, and the other pair - to rest in the other WEDGE: carousels, with the aim of their accumulation from one another . on / in it casting to cease the action of centrifugal force, when the rotation of the carousel slows down and finally stops.

Thus, the closure of the forms is carried out directly under the influence of the centrifugal force of the forms themselves and of the metal in them, the action of which is directed, therefore, just in the right direction.

In FIG. 1 shows a vertical section through the entire centrifugal machine — for casting the mold as a whole; FIG. 2 is a view of one W half of the form in section along the line BB of FIG. four; FIG. 3 - view form for front; FIG. 4 is a cross-section along the line AA of FIG. 2

On a vertical spindle I (Fig. 1), Bo is rotation

using text | Belt gear transmission 2. 3, 4 from e; hectroid-igatel 5 with vertical mounting shaft 1M 6, jammed up

disk 7, software circumference KOTO1 CSO

several, for example, four or one pinch-shaped forms 8, each consisting of two notovinas 8a, 8b (ft. 2-4), are hingedly fortified.

Both -TRAWNERS pivotally mounted on vertical trunnions 9 {FIG. 4) placed in the horizontal beam 10. end; which have the shape of axes 11, rotating in p-gaps 12, fortifications on a carousel disk 7.

Thus, entirely positioned radially relative to the disk 7, the form 8, consisting of rotatable pa vertical axles x 9 halves 8a, 81), can rotate in place with beam 10 on the horizontal axis: b 11 - II, move under the weight of its own weight, lower down.

Each half 8a. 8b of the shape of the XB01-STS: wik 13 (Fig. 4) and a free gap is left between the shanks. The same interval is left for the m: Between parts of the 14 halves of the form on the other side of the trunnions 9.

Two clicks 15 and 16 are attached to the carousel disk 7, which are included in these interlaces, and in the form of a clause; 8, proven on

under the action of centrifugal force, the highest position in which the trunnions 9 are vertical, a wedge 15, the entrance to the hgro gap between the shanks 13 (Fig. 4), acts on them by extending the shape of halves 8a and 81) of the form p. to each other, and vice versa, the action of centrifugal si. (b (not able to overcome the moment of t.pty of form and ebb, and the shape of Fig. 2 will be turned left, wedge 16 will spread apart; 8a and 8b from one another.

In the drawing, numeral 17 also indicates that the ladle DL fills molten metal, 18 - the channel through which the met. T from the casp: and enters the forms, and 19 - gating forms 8.

VcTpoiicTBo for closed operation and operation:; of the two halves of the forms in the centrifugal masks for the elbow, in which the halves of the forms are supplied X in the infrared light, on the basics of m and n p-: rotation of the forms under the action of centrifugal force for an emphasis of 15, with the purpose of pressing the halves 8a to the halves 81), and in CLI | L 16, with the goal of their separation from the other.

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