CZ20023986A3 - Device for filling hollow blocks with lightweight granulate - Google Patents

Abstract

The present invention relates to a device for filling hollow blocks with lightweight granulate, said device comprising a filling mold (3) with thickness ranging from 5 to 50 percent of hollow (2) depth in the blocks (1). The filling mold has holes of identical shape and distributed identically with holes in the blocks to be filled. The filling mold can be optionally provided in its bottom portion with a soft elastic layer (6). The invented device also comprises punches (4) having identical shape and dimensions as holes in the filling mold and which can move in the filling mold holes so that the bottom of the punches and the top of the block nears to each another to a distance being less than 10 mm when the filling material (5) is pressed in.

Description

Technical field

The invention relates to a device for filling cavity fittings with a light, small bulk material mixed with a binder.

BACKGROUND OF THE INVENTION

EP 0 049 348 A1 discloses hollow blocks with an integrated thermal insulating insert, a filling material, a filling process and a device for carrying out the process. There is described a device for filling the cavities of blocks with a light granulate or a light foamed material. The disadvantage of this solution is that the filling material must be sufficiently free-flowing or fluid. However, if the filler material is a very light fine material mixed with a binder that is not sufficiently free-flowing and compacted by vibration, such a device according to EP 0 049 348 A1 is not possible to fill. SUMMARY OF THE INVENTION

These drawbacks are largely overcome by the solution of the present invention. The essence of the invention is that the material is pressed into the mold cavities by means of a filling mold and punches moving in the holes of the filling mold. The correct fill material required to achieve the required compaction rate is ensured by the optimally thick filling mold.

The advantage of the solution according to the invention is that it is possible to fill into the cavities in the fittings and subsequently compact the bulk material mixed with the binder so that it fills the entire volume of the cavities and is sufficiently strong and stable immediately after pressing. Overview of pictures

Fig. 1. 1 is a vertical section through the apparatus of Example 1

Fig. 1. 2 A vertical section through the device according to example 2

DETAILED DESCRIPTION OF THE INVENTION

Example 1

Apparatus for filling cavity fittings with the light granulate shown in Figure 1. The filled fittings 1 have cavities 2 of 235 mm depth. The device comprises a filling mold 3 80 mm thick and punches 4. The openings in the filling mold have the same shape, size and distribution as the cavities in the fittings that are filled. The filling mold is moved over the fittings so that the holes in the mold are above the holes in the fitting and the mold is less than 2 mm above the upper level of the fittings. The cavities in the fittings and the holes in the filling mold are filled with the filling material by shifting the filler material over the mold and by vibration. The punches then travel into the filling mold, reach the upper level of the fittings and press the filling material from the filling mold into the cavities in the In Example 1, the punches are shown in the phase before the material is pressed into the cavities in the fittings.

Example 2

Device for filling cavity fittings with light granulate. The filled fittings 1 have cavities 2 of 247 mm depth. The device comprises a filling mold 3 of 83 mm thick and punches 4. The filling mold has a flexible rubber layer 6 of 10 mm thick at the bottom. The openings in the filling mold and the flexible layer have the same shape and distribution as the cavities in the filled fittings but are 1 mm smaller around the circumference. The filling mold is moved over the fittings so that the holes in the mold are above the holes in the fitting and the mold is pressed against the upper surface of the fittings so that the rubber layer is slightly compressed. The mold cavities and holes in the fill mold are filled with filler material by shifting the filler material over the mold and by vibration. In Example 2, the punches are shown in phase at the end of the molding of the material into the cavities in the fittings.

AND

Industrial applicability

The filling device according to the invention can be used for the production of masonry cavity fittings filled with a very light free-flowing thermal insulation material.

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PATENT CLAIMS

Claims (3)

PATENT CLAIMS Apparatus for filling cavity fittings with a light granulate, characterized in that it comprises a filling mold (3) having a thickness of 5 to 50% of the depth of the cavities (2) in the fittings (1) having openings of the same shape, size and spacing as which is displaced above the fittings so that the holes in the mold are above or in contact with the holes in the fittings and the mold is less than 20 mm above or touches the fittings, and the device also comprises punches (4) having a sodium shape and dimensions such as holes in the filling mold and which can move in the holes of the filling mold so that the lower level of the punches and the upper level of the fitting are brought closer to each other by less than 10 mm when the filler material (5) is pressed. Apparatus for filling cavity fittings with a light granulate according to claim 1, characterized in that the filling mold has openings of the same size or, if circumferentially, less than 5 mm smaller than the openings in the filled fittings. Light granulate filler device according to claims 1 and 2, characterized in that the filling mold is provided at the bottom with a soft elastic layer (6) with openings of the same shape and equally spaced as the openings in the filling mold, wherein the elastic modulus of the flexible layer is less than 50% of the modulus of elasticity of the fill mold material.