Modularized round head buttonholing machine needle plate assembly

By using modular design and a motor-driven threaded rod mechanism, the problems of high replacement cost and complex operation of small needle plates in the keyhole machine needle plate assembly are solved, enabling fast and low-cost replacement of small needle plates.

CN223921750UActive Publication Date: 2026-02-17CHONGQING BOHAO CLOTHING CO LTD
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Patent Information

Application Number
CN202520095824.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-16
Publication Date
2026-02-17
Estimated Expiration
2035-01-16

AI Technical Summary

Technical Problem

The existing keyhole machine needle plate assembly has a fixed base and a small needle plate that are integrally molded. This means that when the small needle plate is replaced, the entire fixed base needs to be replaced, which is costly, cumbersome, time-consuming and labor-intensive.

Method used

The modular design allows for the individual replacement of the small needle plate through a moving mechanism and a sliding disassembly mechanism. The motor drives the threaded rod to move the fixed base, and the combination of spring and clamping plate structure simplifies the installation and disassembly process of the small needle plate.

Benefits of technology

It enables quick and low-cost replacement of small needle plates, simplifies the operation process, and saves time and manpower.

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Abstract

The utility model discloses a modularized round head buttonholing machine needle plate assembly which comprises a buttonholing machine base, a plate needle assembly is movably installed on one side of the upper end face of the buttonholing machine base through a moving mechanism, the plate needle assembly comprises a fixing base, and a through groove is formed in the upper end face of the fixing base in a penetrating mode. Transverse grooves are formed in the front end face and the rear end face of the inner wall of the through groove correspondingly, a connecting plate is movably installed on the upper end face of each transverse groove through a sliding disassembly mechanism, each sliding disassembly mechanism comprises pressing plates, and the pressing plates are installed on the two sides of the corresponding transverse groove through first strip-shaped grooves; the pressing plates are movably connected with the inner walls of the first strip-shaped grooves through first springs, clamping plates are installed on the opposite sides of every two pressing plates, and two clamping grooves are symmetrically formed in the opposite sides of the outer surfaces of the two connecting plates. The small needle plate can be conveniently and independently replaced, the cost is saved, and time and labor are saved.
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