Method for fixing cold iron on wood mold

Abstract

The invention discloses a method for fixing cold iron on a wood mold. The method for fixing the cold iron on the wood mold is characterized in that the cold iron is attracted and fixed on the wood mold through a magnet, after all the cold iron is well placed on the wood mold at a time, modeling and core making are carried out; and a hole groove is formed in the position where the cold iron needs to be arranged on the wood mold, and the magnet is fixed in the hole groove through screws. The method comprises the following operation steps that 1) the wood mold is manufactured, and a cold iron contour line is carved; 2) the hole groove is drilled within the range of the cold iron contour line; 3) the magnet is placed in the hole groove; 4) the magnet is fixed into the hole groove; 5) the coldiron is attracted on the magnet and is tightly attached to the surface of the wood mold; 6) the wood mold is placed on a sand mixer, and modeling and core making are carried out; and 7) after moldingsand is hardened, the wood mold is taken out. According to the method, the cold iron can be reliably positioned, the cold iron arrangement process is simplified, the production man-hour is reduced, the purposes of improving the operation efficiency and optimizing modeling and core making process are achieved, meanwhile, the advantages of being simple in device, convenient to operate and wide in application range are achieved, the method is particularly suitable for the situation that the cold iron is located on the side surface, is suspended or is required to be stacked in height.

Description

technical field [0001] The invention relates to a casting molding process, in particular to a method for fixing a cold iron on a wooden mold, and belongs to the technical field of casting. Background technique [0002] During the production of castings, in order to ensure that the thick parts and complex shapes of the castings have a good structure and no defects such as shrinkage and shrinkage, it is often necessary to arrange chilled iron at corresponding specific positions to improve the quality of the castings and avoid the risk of product scrapping. [0003] However, in actual production, due to factors such as parting surface layout and casting shape, the chill iron is located on the side of the wooden mold or suspended in the air during molding and core making. Or the cold iron needs to be stacked at a higher height, thus causing the installation of the cold iron to be unstable, and it is easy to topple or skew when pounding sand, and deviate from the expected cooling...

AI Technical Summary

Problems solved by technology

[0003] However, in actual production, due to factors such as the parting surface layout and the shape of the casting, the chill iron is located on the side of the wooden mold or suspended in the air during molding and core making.

Or the cold iron needs to be stacked at a high height, which leads to the unstable installation of the cold iron, and it is easy to dump or skew when pounding sand, which deviates from the expected cooling position, thus failing to achieve the original purpose of setting the cold iron

[0004] In the traditional molding production, in order to prevent the cold iron from being biased, artificial hands can only be used to hold the cold iron, and at the same time put sand to tighten the surrounding of the cold iron; so repeated, laying cold iron layer by layer, sanding pounding, which leads to cumbersome molding and core-making operations, consumes a lot of manpower and time, and reduces work efficiency. At the same time, it cannot effectively prevent the cold iron from shifting or falling off.

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