自动加液印刷装置

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An automated diluent-adding printing device that integrates a diluent-adding component and a doctor blade ink return component solves the printing quality problem caused by changes in paste viscosity, achieves efficient and precise diluent addition, and improves automation and production efficiency.

CN224510644UActive Publication Date: 2026-07-17JIANGSU RUNERGY CENTURY PHOTOVOLTAIC TECH CO LTD

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: JIANGSU RUNERGY CENTURY PHOTOVOLTAIC TECH CO LTD
Filing Date: 2025-07-14
Publication Date: 2026-07-17

AI Technical Summary

Technical Problem

In the current printing process of crystalline silicon solar cells, changes in the viscosity of the paste lead to a decline in printing quality. Manually adding diluents is inefficient and inaccurate, affecting printing quality and the degree of automation.

Method used

Design an automatic liquid-dispensing printing device that integrates a diluent dispensing component and a doctor blade/ink return blade component. The spray pipe is horizontally positioned below the doctor blade. The diluent is quantitatively sprayed by a dispensing pump. Combined with the precise movement of the doctor blade and ink return blade, the diluent is added evenly.

Benefits of technology

It improves the stability of printing quality, reduces labor intensity and production costs, enhances the automation level of the printing process, and reduces the risk of operational errors.

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Abstract

本实用新型提供了一种自动加液印刷装置，其包括机台、移动设于机台上的刮刀回墨刀组件、设于机台上的印刷网版及稀释剂加液组件，所述刮刀回墨刀组件包括水平驱动组件、设于水平驱动组件上的安装架、设于所述安装架上的刮刀及回墨刀，稀释剂加液组件包括加液容器、喷淋管、连接所述加液容器与所述喷淋管的管道及设于所述管道上的打液泵，喷淋管水平设于安装架下方，刮刀、回墨刀及喷淋管的长度方向与水平驱动组件的移动方向垂直。本实用新型通过将稀释剂加液组件与刮刀回墨刀组件集成，喷淋管水平设于安装架下方，在印刷过程中能够及时、精准地向印刷浆料喷洒稀释剂，有效解决了浆料粘度变化的问题，保证了印刷质量的稳定性，避免断线等缺陷。

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Claims

1. An automatic liquid dispensing printing device, characterized in that: The device includes a machine base, a doctor blade and ink return blade assembly movable on the machine base, a printing screen and a diluent dispensing assembly on the machine base. The doctor blade and ink return blade assembly includes a horizontal drive assembly, a mounting bracket on the horizontal drive assembly, a doctor blade and an ink return blade on the mounting bracket. The diluent dispensing assembly includes a dispensing container, a spray pipe, a pipe connecting the dispensing container and the spray pipe, and a dispensing pump on the pipe. The spray pipe is horizontally positioned below the mounting bracket, and the length direction of the doctor blade, ink return blade and spray pipe is perpendicular to the moving direction of the horizontal drive assembly.

2. The automatic liquid printing device of claim 1, wherein: In the horizontal direction, the spray pipe is located between the doctor blade and the ink return blade.

3. The automatic liquid printing device of claim 1, wherein: In the vertical direction, the lowest point of the spray pipe is 7-15 cm higher than the lowest point of the scraper.

4. The automatic liquid printing apparatus as claimed in claim 1, wherein: The spray pipe is cylindrical, with a row of equally spaced spray holes on its downward-facing side.

5. The automatic liquid printing apparatus as claimed in claim 4, wherein: The length of the spray pipe is greater than or equal to the length of the scraper, the inner diameter of the spray pipe is 10-15mm, and the inner diameter of the spray hole is 1-3mm.

6. The automatic liquid printing apparatus as claimed in claim 1, wherein: The spray pipe sprays diluent into the printing paste on the machine intermittently every 20-30 minutes, with each spraying amount being 5-10 ml.

7. The automatic liquid printing apparatus as claimed in claim 1, wherein: The doctor blade and the ink return blade are respectively mounted on the mounting frame via independent cylinders, and the doctor blade and the ink return blade are raised and lowered relative to the mounting frame under the drive of the cylinders.

8. The automatic liquid printing apparatus of claim 1, wherein: The machine includes a base, a carrier plate with a rectangular groove disposed on the base, and a bracket disposed on one side of the carrier plate, and the horizontal drive assembly is disposed on the bracket.

9. The automatic liquid printing apparatus of claim 8, wherein: The dispensing pump and the diluent bottle are fixed to the bracket in sequence, one above the other.

10. The automatic liquid printing apparatus of claim 1, wherein: The horizontal drive component is a linear motor module.