Lost foam automatic line

Abstract

The invention belongs to the field of casting of machines and particularly relates to a lost foam automatic line. The lost foam automatic line is divided into a plurality of process sections which are used for conveying sand boxes and realizing corresponding processes, wherein all the process sections are connected sequentially and are respectively provided with a power mechanism for driving the sand boxes to act along the conveying direction of the sand boxes; each process section comprises a casting section and a heat preservation section which is positioned behind the casting section and is joined with the casting section; the casting section consists of at least two casting lines; a plurality of groups of casting lines of the casting section are extended towards a subsequent process section and are collected into a group finally; and the gathered part of the plurality of groups of casting lines is positioned in the heat preservation section or at the joint of the heat preservationsection and the casting section. The lost foam automatic line has a simple structure, and reduces field requirements, lowers production operation cost, fulfills the aims of effective use of existing resources and greatly improves the production efficiency at the same time compared with a plurality of independent production lines in the conventional mode.

Description

technical field [0001] The invention belongs to the field of mechanical casting, and in particular relates to an automatic lost foam line. Background technique [0002] Lost foam casting, also known as dry sand solid mold negative pressure casting, or EPC abroad, is one of the most advanced casting processes in the world. According to the process requirements, the foam plastic model is first made, coated with special high-temperature resistant paint, dried, placed in a special sand box, and then filled with dry sand according to the process requirements, vibrated and compacted, and the molten metal is cast in a vacuum state. At this time, the model evaporates and disappears, and the molten metal replaces the model, replicating the same casting as the foam plastic model. With the development of society, lost foam casting has realized mechanized production. The existing automatic lost foam casting lines are composed of multiple single production lines in parallel, and a sing...

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Problems solved by technology

In practical application, the above method still has the following defects: on the one hand, the existing automatic line uses hydraulic cylinders as the power source of the entire production line and pushes the sand boxes to make them move forward one by one, which is not only difficult to control their heat preservation. At the same time, it often takes a lot of time to cast molten metal in a vacuum state, causing the entire production line to stop and wait, and a large number of idle sand boxes are congested and idle on the production line, resulting in waste of resources and a reduction in production efficiency; on the other hand, due to A single production line independently bears and completes the entire process. If you want to increase the output, you can only solve it by increasing the number of production lines, and the expansion of the number of production lines must increase the area of ​​the factory building. How to get the maximum between production and operation costs and output profits value, it has become a difficult problem that manufacturers are eager to solve

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