3D printing precision forming machine for sand mold of side-wall-free sand box

Abstract

The side-wall-free sand box sand mold 3D printing precision forming machine comprises a main body frame and a sand box, and the sand box comprises a printing flat plate; a transfer mechanism, a bracket, a lifting mechanism for driving the bracket to lift, a sanding mechanism and a printing mechanism are respectively arranged on the main body frame, the bracket is lapped on the transfer mechanism, and the lifting mechanism is connected with the bracket; the sand box is conveyed in place, the lifting mechanism drives the bracket to ascend, the bracket supports the sand box to ascend to a printing station, the sand laying mechanism and the printing mechanism print the side wall and the sand mold of the sand box, a layer is formed on the printing flat plate, the lifting mechanism descends by the thickness of one layer, and printing descending is repeated till printing is completed. Therefore, the sand box, the sand paving mechanism, the printing mechanism and the lifting mechanism are arranged in a split mode, the sand box does not need to be lifted during cleaning, the paving mechanism and the printing mechanism do not need to be operated, and the running reliability of all the mechanisms is guaranteed; and due to the arrangement of the transfer mechanism and the flat plate type structure of the sand box, the sand box can be freely transferred for production, and various production requirements are met.

Description

technical field [0001] The invention relates to the technical field of sand mold manufacturing, in particular to a sand mold 3D printing precision forming machine without a sidewall sand box. Background technique [0002] Existing printers mostly use metal sand boxes with side walls, which are produced by lifting the bottom plate of the sand box. The production cost of the metal sand box is high, the sealing is difficult, and the sand box is heavy, which increases the load and cost of the transfer facility; it also needs to lift the sand box during cleaning The bottom plate of the box has certain requirements for the supporting facilities of the cleaning station. In view of the above technical problems, in the prior art, the production is carried out by printing the side wall of the sand box. The bottom plate of the sand box has a driving mechanism and can be moved, but it cannot be transported independently and freely. Performance, accuracy, etc. are greatly affected, and ...

AI Technical Summary

Problems solved by technology

[0002] Existing printers mostly use metal sand boxes with side walls, which are produced by lifting the bottom plate of the sand box. The production cost of the metal sand box is high, the sealing is difficult, and the sand box is heavy, which increases the load and cost of the transfer facility; it also needs to lift the sand box during cleaning The bottom plate of the box has certain requirements for the supporting facilities of the cleaning station

In view of the above technical problems, in the prior art, the production is carried out by printing the side wall of the sand box. The bottom plate of the sand box has a driving mechanism and can be moved, but it cannot be transported independently and freely. Performance, accuracy, etc. are greatly affected, and multiple sand boxes cannot be printed in turn

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