Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1982-02-22
1984-12-04
Moon, Charlie T.
Metal working
Method of mechanical manufacture
Assembling or joining
29789, 29235, 52405, B23P 1102, B23P 2100
Patent
active
044855460
DESCRIPTION:
BRIEF SUMMARY
In the construction industry various types of hollow blocks are used which now to a great extent contain haydite pellets. In order to increase the heat-insulation properties of the block, the cavities therein can be filled with insulation material.
The method of filling the cavities can vary somewhat, depending on the type of the insulation material, i.e. whether a material is used which, like for example mineral wool, has a defined consistency, or a chemical material, which entirely or partially is foamed in the cavity.
The present invention relates to the handling of the first-mentioned type of material, and its object is to provide a method and an apparatus, which make it possible to rapidly and safely fit pre-cut pieces of compressible insulation material, for example mineral wool.
The present invention, thus, relates to a method of introducing into hollow blocks pre-cut pieces of compressible insulation material, comprising the introduction of said pieces into a drum and to pass one piece to a cavity in the block. The method is characterized in that the piece is compressed transversely to its longitudinal direction, that a pressure difference is established between the end of the piece which is located closest to the hollow block and the opposed end of the piece, which pressure is lowest at said firstmentioned end, whereby a force on said piece is produced, so that the piece in compressed state is introduced into a block cavity located beneath the drum.
According to a preferred embodiment of the method of the inventions at least one material piece is introduced into the drum above the material piece to be introduced into the hollow block, so that said piece lying above also is compressed transversely to its longitudinal direction at least as regards its portion located closest to the piece lying beneath. The piece lying above is compressed to a higher degree than the piece lying beneath, and compressed air is supplied adjacent to the upper edge of the piece lying beneath.
It is also possible, though not preferable, to introduce at the upper end of the material piece lying beneath a sealing element instead of an additional compressed material piece lying above.
The invention also relates to an apparatus for packing pre-cut pieces of a compressible insulation material into hollow blocks, comprising a drum, which passes material pieces to cavities in the block. The apparatus includes a press plate, which is movable laterally relative to the drum and has substantially the same height as the cavity. Means are provided for moving the press plate in lateral direction into the drum for compressing a material piece, and air distribution is provided to supply compressed air in connection to the upper end of the material piece subsequent to the compressing movement.
According to a preferred embodiment of the invention, the apparatus further is characterized in that the air distribution member is attached to said press plate, that it has a greater extension into the drum than the press plate and is provided with at least one outflow opening in connection to the level, at which the upper end surface of a material piece to be passed out of the drum is located.
The invention is described in greater detail in the following, with reference to a preferred embodiment shown in the accompanying drawings, in which
FIG. 1 is a perspective view of a hollow block provided with insulating filling,
FIG. 2 is a section through the lower end of a drum immediately prior to the compressing movement,
FIG. 3 is the same section after completed compressing movement, and
FIG. 4 shows schematically an arrangement for actuating three clamping plates simultaneously.
FIG. 1 shows a hollow block of relatively conventional type, which is manufactured of haydite pellets and provided with three rows of cavities 11, into which pieces 12 of heat-insulation material are inserted. The block is provided at each short side with a groove 13 having the same dimension as half a cavity 11. In bricking, an insulation piece 12 can be positioned in grooves
REFERENCES:
patent: 1733610 (1929-10-01), Leipert
patent: 2199112 (1940-04-01), O'Leary
patent: 2361783 (1944-10-01), McLaughlin
patent: 3139677 (1964-07-01), Goldstein
patent: 3343251 (1967-09-01), Augsburger
patent: 3546833 (1970-12-01), Perreton
Farila Lattblock AB
Moon Charlie T.
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