System of coolers and means for their assembly on casting moulds

Abstract

The system of coolers is foreseen for its use in sand moulds in which cast pieces are obtained. The coolers are constituted by several units or modules ( 5 ) which are mounted in a support ( 4 ), with certain play and are fastened to this by means of a bar ( 7 ), forming a multiple cooler that, arranged on a pallet ( 3 ) on which in turn is superimposed a support pallet ( 1 ) of the mould, allows the displacement of the whole in the casting production line. That is, the assembly of the multiple cooler on the mould, as well as its extraction and separation with regard to the casting that is obtained, is carried out in an automatic way. Each unit or module ( 5 ) of the cooler is capable of being constituted by a single piece, by two pieces ( 5′ ) or by three pieces ( 5″ ), and assembly thereof on the corresponding support ( 4 ) will be carried out with play ( 6 ) to absorb the expansions and contractions caused by the heat transmitted by the molten metal.

1 . System of coolers and means for their assembly in casting moulds, which being applicable in the processes of casting aluminium pieces, such as engine blocks, the casting being carried out in sand moulds by means of pouring aluminium therein, and in those in which coolers are used to cool quickly certain parts of the piece to be obtained, characterised in that it comprises a series of coolers ( 5 ) that as a whole determine a multiple cooler mounted on a support ( 4 ) or cooler holder, the different modules or units ( 5 ) of the coolers being coupled to the support ( 4 ) itself by means of a bar or similar, running through all of them; it having been foreseen that the support ( 4 ) of the coolers is mounted on a pallet ( 3 ) that can be handled by robotic means moveable in the corresponding production line together with the respective support pallet ( 1 ) of the corresponding mould, all of which permitting the automatic assembly of the coolers ( 5 ), as well as their separation or disassembly with regard to the casting (P) that is obtained.  
     
     
         2 . System of coolers and means for their assembly on casting moulds, according to  claim 1 , characterised in that the modules or units of coolers ( 5 ) are mounted on the support ( 4 ) with play ( 6 ), to absorb the expansions and contractions originated by the heat transmitted by the molten metal.  
     
     
         3 . System of coolers and means for their assembly on casting moulds, according to previous claims, characterised in that each unit or module of coolers ( 5 ) is capable of being constituted in a single piece, in two pieces ( 5 ′) or in three pieces ( 5 ″), with play ( 6 ′) between them in order to determine escape paths for the air, in the pouring of the molten metal into the mould.  
     
     
         4 . System of coolers and means for their assembly in casting moulds, according to previous claims, characterised in that the units or modules constituting the coolers ( 5 ) present an appropriate configuration to grasp the casting (P) in a such way that the cooling of the latter takes place both on its front part and on its side and adjacent parts.