SU1248844A1 - Mould for manufacturing articles from expanding materials - Google Patents

Description

The invention relates to devices for the manufacture of articles made of expandable materials, in particular to form M for the i-product development of rigid polyurethane foam.

The aim of the invention is to expand the technological capabilities of the form and ease of operation.

FIG. 1 shows the shape, general appearance; in fig. 2 is a view A of FIG. I; in fig. 3 - form in the open.m state; in fig. 4 shows a section BB in FIG. one; in fig. 5 shows a section B-B in FIG. 3; in fig. 6 - section G-Y in FIG. 3

The form contains side walls I, which are formed by a continuous strip of curved sheet spring material, made with the possibility of connecting the ends of the strip by means of a fastening connection, including screw 2, provided with a supporting surface a and a conical surface b, abutting on one end of the strip made with the conical notch hung threaded part g, screwed into the block 3, is rigidly fixed first on the other end of the strip.

Double hooks 4 and two ears 5 are rigidly fixed on the outer surface of the side walls I, loops 8 and 9 are rigidly fixed on covers 6 and 7, Ears 5 and loops 8 and 9 are mounted on axis 10 and form a hinged connection of side walls and covers, which, by means of the lugs and loops, rotate on the axis 10. The axis 10 is fixed in the mounting support 11.

The lid 6 is rigidly fixed to the axis 12, on which the levers 13 are mounted, and to the axis 14, the grip 15 is mounted, and the levers 13 to the grip 15 are pivotally connected by a pull 16. On the lid 7, the fixed axes 17 are fixed on , and on axis 19 a handle 20 is mounted, and the levers 18 with the handle 20 are hingedly hinged 21. On the outer surface of the cover 6 the support 22 is rigidly fixed, and on the inner surface there are clamps 23, made with a conical surface W, on the outer surface the cover 7 is rigidly fixed support 24, and on the inner surface and - latches 25, made with a conical surface.

The form works as follows.

By turning the knob 15 around the axis 14 in a clockwise direction, through the arms 16, the levers 13 turn on axles 12 and turn out of the engagement with double hooks 4, thereby releasing the cover 6 from fixing to the sides of the walls 1. Next, lifting the handle 15 upwards, the cover 6, through the hinges 8, rotates around the axis 10 fixed in the mounting support 11, and rests on the support 22. Turn the handle 20 around the OS-1 19 counterclockwise (Fig. 2) through the t gu 2 turn on axis x 17 levers 18 and get out of engagement with double hooks 4, thereby freeing cover 7 from fixation with side walls 1.

Then the side walls 1 are rotated

through the lugs 5 around the axis 10 and installed in a vertical position (Fig. 3), while the clamp 7 remains stationary, resting on the support 24. To remove the rigid product, they are released from fixation and

the ends of the strip forming the side walls 1 are moved away, this is done by unscrewing the screw 2, in this case the threaded surface of its g comes out of block 3, the conical surface b releases the conical notch at one end of the strip and the surface moves aside one end of the strip from the other.

The ends of the strip forming the side walls 1 are fixed by screwing in screw 2, while the threaded surface of its g enters the block 3, the conical surface b, interacting with the conical notch at the end of the generator, fixes both ends of the strip of the side walls 1. When preparing the mold for shaping the product, the side walls 1 are rotated from the vertical position through the lugs 5 around the axis 10 (Fig. 3) and placed on the lid 7, while the mold is closed by the lid 6. If necessary, when preparing the mold molded articles, for example, specular reflection band of the sheet material of the side wall 1 can be rotated from a vertical position (FIG. 3) and laid on kryschku 6 and then nakryvaets

, on top of the lid 7. In both cases, the fixing of the covers 6 and 7 relative to the side walls 1 is carried out in the reverse order of their release from fixation.

The proposed form design allows you to make products with embedded parts. Embedded parts are fixed on the inner surface of the cover b with the help of retainers 23, which, with their conical surfaces, enter the holes in the holes of the washing parts and fix them, and during the manufacture of the specular reflection part the embedded parts are fixed on the inner surface of the ratchet 7 during IOMO1CI clamps 25 which, with their contingent surfaces, fit into the holes of the laid-in parts and fix them.

The proposed form permits the manufacture of products of different configurations and sizes without casting slopes and, if necessary, with undercuts.

5The form is convenient to operate, notch

hard products are achieved with fairly simple means and do not need to be pushed out. This is achieved by the fact that

five

the side walls rotates around an axis fixed in the mounting support and is made of sheet spring material //

la, the ends of which are connected by a screw, allowing for the removal of these ends.

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21

18

7

Srig.

bb

ery g l

Yu

in-in

7 j

FIG. five

23.25

FIG. 6

Claims (2)

1. FORM FOR MANUFACTURING PRODUCTS FROM FOAMING MATERIALS, including side by side covers, characterized in that, in order to expand the technological capabilities of the form and ease of use, the side walls are formed by a continuous strip of curved sheet spring material with the possibility of connecting the ends of the strip using a fastener and mounted with the possibility of rotation in a swivel, made in the form of ears mounted on a common axis, mounted on the side walls, and loops fixed to the lid Oh. 2. The form in π. 1, characterized in that, for the purpose of manufacturing products with embedded parts, the inner surfaces of the covers are provided with conical clamps for fasteners. 1