Removable side wall system for a casting mould

Details Removable side wall system for a casting mould Removable side wall system for a casting mould

1999-03-23

2001-08-21

Nguyen, Nam (Department: 1722)

Static molds

Container-type molding device

Having plural mold sections

C249S168000, C249S139000, C425SDIG003

Reexamination Certificate

active

06276657

ABSTRACT:

TECHNICAL FIELD
This invention relates to a side wall system for a casting mould including a side part which is removably attachable to a casting bed by means of one or several magnets.
BACKGROUND ART
Removable sides which are provided with different kinds of fastener arrangements for a casting mould for elements to be cast from concrete have been disclosed in the prior art. These sides can be placed in desired positions on the casting bed, depending on the size and the shape of the piece to be cast.
Usually, when casting wall elements from concrete, a table mould, i.e. a tilt mould with side walls, is used as the horizontal mould. A casting machine moves above the table and applies a certain amount of mass into the mould. Once the concrete is hardened, the table is tilted about a tipping shaft provided on one side, almost into an upright position. That side wall of the mould that ends up in the upper position is removed and the element is lifted away from the table using loops provided on its sides. The position of the upper side wall has to be alterable according to the size of the element to be cast. Removable side walls can be used for this purpose.
Furthermore, removable and adjustable side parts enable door and window openings to be formed in desired places in the element.
Use of magnets for fastening of removable element sides is well known in the art. They are very suitable for the fastening of a side as they fasten to the smooth steel surface of the casting bed. In order to fasten the side tightly, strong magnets have to be used. However, removal of the magnets from the casting bed after casting may be quite difficult in some systems.
DISCLOSURE OF THE INVENTION
The side wall system according to the invention is characterized in that the body of the magnet part that carries the magnet comprises a gripping loop or a downwardly open gripping hook through which a release lever can be pushed in order to detach the magnet from the casting bed.
The invention provides a side wall system arrangement that can easily and quickly be modified in a normal factory workshop. The basic frame is formed by readily available steel and magnet parts ex stock, while the non-uniform casting and supporting parts are sawn from plywood locally. Assembly is easy and simple. The system is a suitable arrangement for side and opening moulds for all the present products of different thicknesses manufactured in the concrete industry.
The system according to the invention can be composed of three standard components ex stock, i.e. of a lower side wall frame, of a supporting profile for the upper edge of the side wall and of a fastening magnet. In addition, the system includes mould and support panels made of plywood. They are made separately for each case locally.
The entity formed by a side and a magnet according to the invention is light, compact and easy to use. Besides, is does not take much time to construct it. The side can be fastened and removed easily and quickly. The system is simple and reliable.


REFERENCES:
patent: 3154833 (1964-11-01), Kimball
patent: 3319989 (1967-05-01), Ross
patent: 3667880 (1972-06-01), Malet et al.
patent: 5277396 (1994-01-01), Vappula
patent: 6082701 (2000-07-01), Reymann
patent: 2907508 A (1980-09-01), None
patent: 639686 A2 (1995-02-01), None

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