Automatic lost foam pattern curtain-coating device and method

Abstract

The invention relates to an automatic lost foam pattern curtain-coating device and a lost foam pattern automatic curtain-coating method. The device comprises a coating supply device, a feeding pipeline, an automatic curtain-coating joint, an automatic curtain-coating chamber, a manual curtain-coating chamber, a spraying gun, a curtain-coating pond, a material returning pipeline and two sets of automatic curtain-coating equipment, wherein the automatic curtain-coating equipment is arranged inside the automatic curtain-coating chamber; the spraying gun is arranged inside the manual curtain-coating chamber; the coating supply device is correspondingly connected to the automatic curtain-coating joint and the spraying gun by virtue of the feeding pipeline; the automatic curtain-coating joint is connected to the automatic curtain-coating equipment; the two sets of automatic curtain-coating equipment are arranged, and the two sets of automatic curtain-coating equipment are respectively correspondingly arranged at the left and right sides of the automatic curtain-coating chamber; and the coating supply device is connected to the curtain-coating pond by virtue of the material returning pipeline. The method comprises the following steps: (1) preparing for loading pieces; (2) curtain-coating; (3) inspecting; and (4) recovering. The curtain-coating device and method disclosed by the invention have the advantages of reasonable structural design, high automation degree and the like; the automatic curtain coating of lost foam pattern workpieces is achieved, the curtain-coating efficiency is improved and the working environment of workers is improved.

Description

technical field [0001] The invention relates to a flow coating device, in particular to an automatic flow coating device and method for a lost foam white mold. Background technique [0002] In the production of solid mold casting, in order to improve the quality of the casting surface, a layer of refractory material should be coated on the surface of the polystyrene white mold, which has achieved the change of the surface's heat resistance, metal liquid sand resistance, and chemical stability. , mold release and anti-sand sticking properties. In foundry production, such coatings are generally water-based coatings. On the one hand, it can change the sand resistance of castings and obtain good surface quality; on the other hand, after the coating is dried, a layer of The shell with high hardness can effectively prevent the influence of the external environment on the white mold during the transportation of the white mold and prevent the deformation of the white mold during th...

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Problems solved by technology

[0003] At present, the method of spraying the paint on the surface of the white mold is generally manual spraying with the nozzle, which is time-consuming and labor-intensive, and the poor working environment has a great impact on the physical and mental health of the workers.

[0004] For example, the Chinese patent application number is ZL201410366865X, which is a full-form casting paint spraying equipment, including a paint supply device, a spray gun connected to the paint supply device, and a shower pool for accommodating white molds. The shower pool includes a base and The coaming board is vertically arranged on the base. The base is provided with a placement surface for placing the white mold casting and an inclined diversion surface connected to the edge of the placement surface. The combination of a paint supply device and a spray gun is used for spraying. The surface of the white mold in the coating pool is sprayed with paint, but this patent application is to manually use the spray gun to complete the spray coating on the white mold, which is time-consuming and laborious, and the working environment is poor, which has a great impact on the physical and mental health of workers. lower, less efficient

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