초록 ▼

Disclosed is a process for the industrial manufacture of a formwork panel in a continuous manner. In this process, a corrugated reinforcing metal core is manufactured in the form of a continuous metal core band. The metal core band is supplied onto a main conveyor. Simultaneously, a mixture of compo

Disclosed is a process for the industrial manufacture of a formwork panel in a continuous manner. In this process, a corrugated reinforcing metal core is manufactured in the form of a continuous metal core band. The metal core band is supplied onto a main conveyor. Simultaneously, a mixture of components that react with each other to make an insulating foam, is prepared and continuously injected at the inlet of the main conveyor. The foam that is being formed and expands along the main conveyor, is compressed so as to form to a continuous main body band having a given height and given thickness. This continuous main body band incorporating the continuous metal core band. Last of all, the continuous main body band and the continuous metal core band incorporated therein are cut at the outlet of the main conveyor to obtain the requested panels.

대표청구항 ▼

1. A process for the industrial manufacture of insulated formwork panels, each of said panels having a main body made of insulating foam and having a given length, a given height with opposite edges and a given thickness, each of said main body incorporating a corrugated reinforcing metal core embed

1. A process for the industrial manufacture of insulated formwork panels, each of said panels having a main body made of insulating foam and having a given length, a given height with opposite edges and a given thickness, each of said main body incorporating a corrugated reinforcing metal core embedded into the foam, said metal core being of substantially the same height as said main body and extending within said main body over all the length thereof, said process comprising the steps of:(a) manufacturing the metal cores of said formwork panels in the form of a continuous metal core band, said manufacturing step comprising:positioning straight rods in spaced apart relationship, said straight rods each having a height substantially equal to the height of main bodies of panels;positioning other rods onto the straight rods, said other rods being spaced apart and extending in a direction perpendicular to said straight rods;connecting said other rods to the straight rods; andcorrugating said other rods to form V-shaped zigzags of such a depth that the resulting metal core band is of an average thickness close to the thickness of the main bodies of the panels,(b) supplying said band onto a main conveyor having an inlet in which said band is continuously fed, and an outlet;(c) preparing a mixture of components that react with each other to make the insulating foam;(d) continuously injecting said mixture at the inlet of the main conveyor;(e) compressing the foam that is being formed and expands along the main conveyor by means of a secondary conveyor extending on top of the first conveyor so as to form a continuous main body band having said given height and given thickness, said continuous main body band incorporating the continuous metal core band; and(f) cutting at said given length the continuous main body band and the continuous metal core band incorporated therein at the outlet of the main conveyor to obtain said requested panelswherein said process comprises the additional steps of:supplying a continuous T-shaped bar into the inlet of the main conveyor, said bar having a too portion with two opposite sides and a leg portion and being supplied in such a manner that one side of its top portion and its leg portion extend fiat onto one side of the continuous main body band and onto one of the opposite edges of said continuous main body band, respectively;positioning a bottom layer of supporting material onto the main conveyor upstream of the inlet thereof so that the metal core band and the mixture of compounds be respectively supplied and injected on too of said bottom layer, said bottom layer being continuous and having side edges;positioning a too lever of supporting material onto the secondary conveyor so as to cover said metal core band and foam that is being formed, said top layer being continuous and having side edges;folding and positioning the side edges of said bottom and top layers so as to control expansion of the foam and height and thickness adjustment of said continuous main body ban; andcutting the continuous T-shaped bar together with the continuous main body and said continuous metal core band incorporated therein at the outlet of the main conveyor. 2. The process of claim 1, comprising the additional step of:making regularly spaced apart perforations into the leg portion of the continuous T-shaped bar. 3. The process of claim 2, comprising the additional step of:forming said continuous T-shaped bar prior to supplying it into the inlet of the main conveyor by successive folding of a flat band of metal. 4. The process of claim 3, wherein the mixture of compounds is selected to from a polyurethane or polyisocyanurate foam. 5. The process of claim 2, wherein the mixture of compounds is selected to form a polyurethane or polyisocyanurate foam. 6. The process of claim 1, wherein the mixture of compounds is selected to form a polyurethane or polyisocyanurate foam.