US 6,148,898 AGranted

Pouring method and plant therefor

AssigneeSelcom AB

InventorsEric Sjodahl, Soren Nilsson

Life of this patent

Estimating the term…

Loading patent…

Abstract

A pouring method and a pouring plant are described. Mould sections (15) are produced piecewise with cavities at two opposite ends thereof. The mold sections are combined in a line (15A-15D), wherein the cavities define a mold cavity (15a) having an exposed pour cup (30). The line of mold sections is advanced incrementally by drive means (16, 162) through an increment length that corresponds to the length of the mold sections (15), to and through a molding station (50). The true lengths of the produced sections (15) are measured and registered. The difference in length between the first mold section (15D) in the line (15A-15D) that lies immediately upstream of a pour cup (30), where a pouring operation was last carried out, and the last mold section (15A) in the line is calculated. The pouring machine (20) is moved from its latest pouring position along the line through a distance corresponding to this length difference while the line (15A-15D) is advanced towards the pouring station (50) to an end position (18) of the line advancing means (16, 162).

Claims4

Dependent claims

In a machine for filling molds with molten metal, a method for controlling pouring position of a pouring machine based on an actual thickness of each mold section, comprising:

fabricating a series of cooperating mold sections, whereby two cooperating mold sections define in respective contact regions a mold cavity, each mold cavity having a recessed pour cup on an upper side thereof arranged for receiving molten metal;
measuring a length of each last fabricated mold section upon fabrication thereof;
moving the series of cooperating mold sections downstream along a predetermined path of travel to a mold pouring station having a pouring machine, the pouring machine being movable longitudinally along the path of travel;
calculating a length difference between a mold section lying immediately upstream of the pouring machine in the pouring station, and the last fabricated mold section in the series;
moving the pouring machine from its previous pouring position through a distance that corresponds to said length difference such that the pouring machine is placed in alignment with an anticipated final position of a pour cup of a next mold to be advanced into the pouring station.

2 more elements

Dependencies are inferred from the claim text.