Investment casting shell-making complete equipment and shell-making method thereof

Abstract

The invention discloses investment casting shell-making complete equipment and a shell-making method thereof. The investment casting shell-making complete equipment comprises a mechanical arm, a wax mold frame, a slurry mixing device and a mixing and spraying device. The shell making method comprises the steps of wax mold taking, primary slurry dipping, primary sand spraying, primary drying and hardening, secondary slurry dipping, secondary sand spraying, secondary drying and hardening, later slurry dipping and drying and hardening. The equipment is simple in structure and reasonable design, and is used for mixing an investment casting slurry. The number of material mixing barrels is reasonably planned, material mixing division is performed, the material mixing barrels and stirring bladesare in rotating linkage, synchronous and stable, the material mixing barrels and the stirring blades rotate independently and are opposite in direction, mixing efficiency can be improved, mixing uniformity can be improved, slurry quality can be guaranteed, and a wax mold slurry sticking and shell making effect can be improved.

Description

technical field [0001] The invention relates to the technical field of special casting equipment, in particular to a complete set of investment casting shell-making equipment and a shell-making method. Background technique [0002] Investment casting, also known as lost wax casting, includes processes such as pressing wax, repairing wax, forming trees, dipping slurry, melting wax, casting molten metal and post-processing. Shell is an important shell-making process of investment casting. [0003] When making shells, wax mold dipping requires high mixing uniformity of the slurry, and in order to ensure the continuous dipping operation, the slurry needs to be continuously replenished, otherwise, the effect of shell making and the dipping operation will be affected. Moreover, during sand showering, dipping and sand showering often need to be repeated many times. Sand showering operations are usually carried out manually, and the sand material is evenly sprinkled on the wax mode...

AI Technical Summary

Problems solved by technology

[0003] When making shells, wax mold dipping requires high mixing uniformity of the slurry, and in order to ensure the continuous dipping operation, the slurry needs to be continuously replenished, otherwise, the effect of shell making and the dipping operation will be affected. Moreover, during sand showering, dipping and sand showering often need to be repeated many times. Sand showering operations are usually carried out manually, and the sand material is evenly sprinkled on the wax model by manual methods, and the degree of automation is low. , and this operation has very high requirements on the proficiency of the operator, otherwise it will have a great impact on the uniformity of the sand shower, which will seriously affect the subsequent shell making, and a little carelessness will cause accidental injury and lead to the scrapping of the wax model. Moreover, the labor intensity great

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