An on-machine smearing device

By setting baffles and staggered through holes in the upper liquid box of the foil forming machine to form a flow channel, the problem of uneven electrolyte flow is solved, and the electrolyte is evenly distributed in the upper liquid box, which improves the consistency of copper foil weight and the production quality of circuit boards.

CN224531077UActive Publication Date: 2026-07-21DONGQIANG (LIANZHOU) COPPER FOIL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGQIANG (LIANZHOU) COPPER FOIL CO LTD
Filing Date
2025-08-18
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The uneven flow rate of electrolyte in the liquid box of the existing copper foil production machine leads to uneven copper foil weight, which affects the quality of copper clad laminates and circuit board production.

Method used

A first partition is installed inside the liquid inlet box to divide the cavity into multiple liquid inlet areas, and a second strip-shaped through-hole is staggered to form a flow channel, so that the electrolyte can be turned multiple times to achieve uniform flow.

Benefits of technology

Through the design of the baffle channel, the electrolyte flow is more uniform after multiple turns in the upper liquid box, which solves the problem of uneven electrolyte flow and improves the consistency of copper foil weight and the production quality of circuit boards.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224531077U_ABST
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Abstract

The utility model relates to electrolytic copper foil production field discloses a kind of liquid feeding device on green foil machine, including liquid feeding box and liquid distribution cylinder, and one end of the liquid distribution cylinder is equipped with electrolyte delivery pipe, and the other end is equipped with multiple shunt pipes, and multiple the shunt pipe is communicated with the bottom of the liquid feeding box, the liquid feeding box has first direction, the liquid feeding box is equipped with cavity, the middle part of the top surface of the liquid feeding box is equipped with first strip through-hole, the first strip through-hole is communicated with the cavity, the liquid feeding box is equipped with multiple first baffle, multiple the first baffle is arranged in cavity from top to bottom, multiple the first baffle separates the cavity into multiple liquid feeding area, the first baffle is equipped with second strip through-hole, and adjacent the liquid feeding area is communicated by second strip through-hole, and the second strip through-hole on adjacent the baffle is misaligned arrangement, and the length direction of the first strip through-hole and the second strip through-hole extends along first direction. The present liquid feeding device can uniformly output electrolyte.
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