An additive printing tool head having a mouth plugging mechanism and an additive printer

By combining independently controlled extrusion motors, lifting motors, and switching motors with a nozzle-plugging mechanism, the problems of nozzle filament overflow and lack of independent control in existing technologies have been solved, achieving high-quality printing and improved automation levels.

CN122401876APending Publication Date: 2026-07-17SHENZHEN TUOZHU TECH CO LTD
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Patent Information

Application Number
CN202510065037.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing dual-printer units are prone to unwanted filament overflow when not in operation, affecting print quality. Furthermore, their complex drive mechanism and transmission structure result in large size, lack of independent control, and difficulty in achieving high automation.

Method used

Independent extrusion motors, lifting motors, and switching motors are used to control the lifting, extrusion, and switching of the printhead. Combined with a nozzle-blocking mechanism, the printhead is blocked when it is not in operation. Magnetic elements and guiding magnetic elements ensure accurate switching of the nozzle-blocking baffle.

Benefits of technology

It effectively avoids filament overflow, improves print quality, enables independent control and detection, enhances the automation level of the equipment, and reduces the size and complexity of the drive mechanism.

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Abstract

The application relates to an additive printing tool head which comprises a mounting body, a first nozzle, a second nozzle and a wire channel; the mounting body is provided with a lifting mechanism, the first nozzle and the second nozzle; the lifting mechanism comprises a lifting motor; the lifting motor is mounted on the first side of the mounting body, and the lifting motor drives the first nozzle to lift; the tool head further comprises a plug nozzle mechanism which comprises a swing rod and a plug nozzle; one end of the swing rod is in transmission connection with the output shaft of the lifting motor, and the other end is provided with the plug nozzle; the plug nozzle is driven by the lifting motor to move and switch between the first nozzle and the second nozzle, so as to block the first nozzle or the second nozzle in a non-working state. The use of the plug nozzle mechanism can block the nozzle in the non-working state, thereby avoiding the accidental overflow of the wire, and improving the printing efficiency and effect.
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Citation Information

Patent Citations

  • Double nozzle device and 3D printing equipment

    CN115091750B

  • Dual filament feeder assembly for an additive manufacturing system

    US20240009927A1