Anti-drip spray gun structure for new energy battery casing coating
By setting a third air channel and air guide groove in the spray gun, combined with a pneumatic structure and a limiting ejector pin, the problems of paint dripping and uneven coating in traditional spray guns are solved, achieving uniform spraying of high-viscosity paint and meeting the spraying precision requirements of new energy battery casings.
CN224423268UActive Publication Date: 2026-06-30ANHUI HOULI TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI HOULI TECH CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-06-30
AI Technical Summary
Technical Problem
Traditional spray guns suffer from paint dripping when spraying high-viscosity coatings, and existing improvement solutions rely on gravity collection, which is inefficient and results in uneven coatings.
Method used
A drip-proof spray gun structure was designed. By setting a third air channel and air guide groove in the middle of the gun needle, the paint discharge speed is controlled by a pneumatic structure. Combined with the limit pin to adjust the piston stroke, the paint is ensured to be completely discharged and dripping is avoided.
Benefits of technology
It effectively avoids paint dripping, ensures the uniformity of the coating and the spraying accuracy, and meets the high-precision spraying requirements of new energy battery casings.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224423268U_ABST
Abstract
This utility model relates to the field of spraying equipment technology, specifically to an anti-drip spray gun structure for spraying new energy battery casings. It includes: a spray gun body, comprising a shell, a needle channel axially extending through the center of the shell, a needle assembly within the needle channel, and a nozzle at the head of the needle channel. This utility model, by setting a third air passage in the middle of the needle and supplying air to the second air passage through the second and fourth air passages, can blow out residual material in the nozzle, preventing material dripping. By setting an air guide groove, air can still enter the fourth air passage when the piston rotates. By rotating the limiting pin, the distance between the end face of the limiting pin and the tail end of the piston can be controlled, thereby controlling the piston's stroke and thus the paint discharge speed. Simultaneously, the plug does not move, ensuring no impact on the pressure of the elastic element on the piston.
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