A device for sand hole prevention coating spraying on surface of castings

By using a mechanically linked spraying device and a hydraulically driven rotating clamping plate, the problems of uneven paint distribution and blind spots in spraying are solved, achieving uniform spraying and high-quality coating formation on the surface of castings, and improving the protective performance of the coating.

CN224475176UActive Publication Date: 2026-07-10SANGROOVE JIANGSU MACHINERY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SANGROOVE JIANGSU MACHINERY
Filing Date
2025-06-27
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

In existing technologies, direct reciprocating spraying results in uneven coating distribution, and changes in spray gun pressure damage the coating before it dries, causing problems such as coating peeling and wrinkling. Furthermore, traditional clamping methods cannot cover the spraying blind spots of complex castings.

Method used

The mechanically linked spraying device achieves continuous single-pass spraying through the cooperation of the insert plate and the baffle. Combined with the rotation of the clamping plate driven by the hydraulic cylinder, it realizes multi-directional spraying of the casting, ensuring that the paint covers the casting layer by layer in one direction and provides sufficient drying time during the spraying process.

Benefits of technology

It achieves a smooth, dense coating with excellent anti-peeling and anti-wrinkle properties, avoids paint waste, covers the blind spots of traditional clamping methods, and improves the integrity and protective performance of the coating.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224475176U_ABST
    Figure CN224475176U_ABST
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Abstract

The utility model relates to a kind of casting surface sand hole preventive coating spraying devices, comprising: rack, spray gun, connecting pipe, plugboard, reciprocating screw, nut seat, first motor and baffle;Reciprocating screw is rotatably installed on rack;First motor drives reciprocating screw to rotate;Nut seat is slidably installed on rack along the length direction of reciprocating screw, and nut seat is threadedly connected with reciprocating screw;Spray gun is installed on nut seat, connecting pipe is communicated with spray gun, to provide coating towards spray head;Plugboard slides through connecting pipe, to cut off the two sides of connecting pipe, and the sliding direction of plugboard is set along the length direction of reciprocating screw;Plugboard is provided with through hole on the upper side, to communicate the two sides of connecting pipe;And the two sides on the stroke of plugboard are respectively provided with baffle, and baffle is installed on rack. Thus it can avoid the coating superimposed stress caused by traditional reciprocating spraying, ensure to form flat, dense and anti-peeling, anti-wrinkling excellent protective coating.
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