SU100106A1 - Molding for forming hollow blocks with non-through cavities - Google Patents

Description

The known molds with forcibly moved rods for forming blocks with non-through voids did not justify themselves in practice. This is explained by the fact that to create a jumper above the internal emptiness of the rods, vertical movement is reported, as a result of which the weight / t located above them is compacted. However, it is impossible to link the movement of the rods directly to the movement of the stamp, since this would result in unequal pressing of the mass above and around the rod, and the exit of the rods beyond the level of the table when pushing the product would prevent removal of the product.

Attempts to restrict the course of the rods when pushing out with the preservation of the n. Iridity of their movement from the die led to the creation of very complex devices that were not used in production.

In the proposed mold, the vertical change of the rods for pressing the mass, which is located them, is achieved by the fact that the tapes are installed with the possibility of their displacement in the direction of pressing under the action of only the friction forces of the extruded stamp on the lateral surface of the rods.

The proposed transformation, shown schematically in the drawing, is made in the form of a stamp 1 with an overlay 2. In the stamp there are two sockets in which the rods 3 are planted, freely shifted, ayun1ies in the direction of pressing. A horizontal jumper 4 passes through the rod, and connects the cutouts of the plates 5 of the inner shape of the mold. The height of the cut-outs in the plates determines the magnitude of the possible turning of the jumper 4, and consequently, of the rods 3.

Jumper 4 consists of two paired traverse bars, which can be cut, shortening the jumper, or diluted, extending it, which is carried out by turning the small pox 6. The jumper is shortened so that you can remove the die from the mold without disassembling the last ( blended for cleaning and lubrication).

Pressing from this device is the origin of 1;

During filling the mold into the mold, the stamp is in the lower position. The rods are also in the 1H1 position, defined by the cutout in plastips 5.

When the mold in the process of rotation of the press table comes to the pressing position, where it overlaps with a pressure-receiving plate, the stamp starts to rise under the action of the press-and-rod mechanism of the press and presses on the mass located by the pack of 2 stamps, i.e. .

With this: M shtaMP does not press directly on the rods. However, between the pressed upwardly moving mass and the lateral stegkamp rods 3, a large tre1P1 force develops, which pulls up the rods, causing them to sress the masses}, which is located above them.

In the process of pressing the stamp goes up the path, determined by the depth of filling and the height of the brick. For example, with backfilling of 100 mm and a brick height of 65 L1m, this essence is 35 mm. The rods move until i-ie, an equilibrium is reached between the force of the trench mass on their walls, on the one hand, and the pressure of the pressing mass above them, on the other hand. If, for example, the height of the backfill — above the rods was 15 mm, and by the end of the press-seam, the thickness of the web of the rods was 10 mm, while the stamp passed 35 mm, the rods passed 5 mm, which . ko, it is enough for high-quality crimping to be found by their “masses”.

After the end of pressing, when the product is pushed out of the mold, the stamp moves further up, the rods do not accompany it, because the web 4, moving together with the rods 3, reaches the upper end of the cut in the facing plates 5 and prevents further movement of the rods . In this way.

the rods never extend above the level of the press table.

The rods in the upper part have a taper, which makes it easier for the product to slide off the product from its shape.

After removing the brick, the rods fall down under the action of their weight. In the event of a sticking, they bring the AiecTo down onto the die, which rests against the end of the stroke down the lintel with its pad.

PREMIUM invented and

A mold for forming hollow blocks with non-through voids, containing a stamp and movable rods for forming voids during molding, characterized in that, with a simplified construction, the rods are installed in the punch holes with the possibility of their displacement in the direction of pressing under the action of the friction forces of the extruded mass on the side surface of the rods for pressing the mass, is located above them.

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