A three-inch thermal label printer mechanism

CN224428233UActive Publication Date: 2026-06-30中山市立泽金属制品有限公司

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: 中山市立泽金属制品有限公司
Filing Date: 2025-09-08
Publication Date: 2026-06-30

AI Technical Summary

Technical Problem

Existing thermal label printer mechanisms have shortcomings in terms of structural stability, detection and control, operation and maintenance, and electrostatic protection, resulting in problems such as low printing accuracy, easy wear, and difficult maintenance.

Method used

It adopts a multi-limit design of rubber roller bracket and sensor bracket, combined with through-beam sensor and multiple paper detectors, optimizes the operation structure, increases electrostatic protection, and achieves a stable connection and convenient maintenance through combined fastening and mechanical linkage.

Benefits of technology

It improves the stability and accuracy of label printing, reduces the probability of paper shortage misjudgment and wear, simplifies the maintenance process, and extends the service life of the printing mechanism.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of thermal label printer technology and discloses a three-inch thermal label printer mechanism, including a three-inch rubber roller, a label body frame, a conductive sheet, a rubber roller bracket, a sensor bracket, a hardware switch plate, and a cover-opening rocker. The three-inch rubber roller is rotatably supported on the label body frame by components at both ends; the label body frame is used to fix the TPH (Tissue Power Handler) and the motor, and is equipped with a paper detector; the conductive sheet is installed on the label body frame to release static electricity; the rubber roller bracket and the sensor bracket cooperate to limit and provide auxiliary support for the three-inch rubber roller, and the sensor bracket is equipped with a through-beam sensor; the hardware switch plate cooperates with the label body frame to form a channel groove for the label paper to pass through and fixes the TPH; the cover-opening rocker is rotatably set on the label body frame to control the opening and closing of the TPH and the rubber roller. This mechanism achieves stable label feeding, accurate detection, and clear printing through the coordinated work of its components. It has a robust structure, is easy to operate and maintain, and improves printing quality and efficiency.

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