Equipment for lost foam casting

Abstract

The invention belongs to the technical field of evanescent mode, and particularly relates to equipment for evanescent mode casting, which comprises a base, a walking mechanism, a mounting sliding plate, a guide rod, a reinforcing frame, a sand box, a lifting adjusting mechanism, a baffle plate and a plug strip. When a positioning block is in contact with the bottom surface of the sand box, a sliding block in a pushing structure is also aligned and matched with the upper end of a transmission block, at the moment, a first limiting block is controlled to move outwards to release connection between a fixing sleeve and a baffle, in the outward moving process of the first limiting block, the transmission block loses pushing force, and the elastic force of a fifth spring is smaller than that of a first spring; and at the moment, the sliding blocks in the pushing structures are inserted into the corresponding clamping grooves under the action of the fifth springs to connect the sand box with the baffle.

Description

technical field [0001] The invention belongs to the technical field of lost foam, and in particular relates to a device for lost foam casting. Background technique [0002] Lost foam casting is to first make a foam model according to the process requirements, apply a special high temperature resistant coating, dry it, put it in a special sand box, and then fill it with dry sand according to the process requirements. When the molten metal is poured, the model vaporizes and disappears, and the molten metal replaces the model to reproduce the same casting as the foam model. [0003] The existing lost foam casting has the following problems: [0004] First, the sand box needs to meet different workstations. If the sand and the lost foam are also added during the movement, the sand will squeeze the lost foam, and the unstable movement will easily lead to the deformation of the lost foam. [0005] Second, in the existing casting, the suction pipe is often arranged in the sand so...

AI Technical Summary

Problems solved by technology

[0004]First, the sand box needs to meet different work positions. When moving, if the sand and the lost foam are added, then the sand will squeeze the lost foam In the case of unsteady movement, it is easy to cause the deformation of the lost foam

[0005]Second, in the existing casting, suction pipes are often arranged in the sand so that the gas generated by the lost foam gasification during casting can be discharged, but often due to the suction pipe The layout is often uneven, causing the gas to fail to discharge in time, resulting in the failure of the casting of the parts

[0007] Fourth, in the prior art, the first problem is often solved by adding partitions, but because of the addition of partitions, the distance between the partitions and the lost foam The space is reduced, so it is not easy to use auxiliary tools to ensure that the sand completely covers the lost foam when filling the sand

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