Apparatus for gumming and straightening foundry moulding shells and cores

摘要

The invention relates to an apparatus for gumming moulding shells and cores split into two parts and at the same time for straightening them in a precise manner and is intended for use in the casting industry. The apparatus comprises a lower and an upper receiving plate (a, f) fitted with spring bolts (b, g), lower and upper mask or core halves (d, h) and one or more clamping cylinders (e) and is characterised in that straightening pins (c) are arranged in the mask or core region, on the parting faces of the mask or core halves (d, h). Using the apparatus according to the invention, it is possible, for example, for two hot Croning mask halves to be bonded gummed, these mask halves, which undergo a process of deformation which cannot be influenced exactly and in practice cannot be controlled during the cooling process from the time of removal from the machine to the beginning of pressing under the bonding press, simultaneously being straightened again in a precise manner. <IMAGE>