A double needle linking machine

By changing the position of the double needles and using single-row double-thread sewing, the problem of large edging width when sewing thick fleece-lined fabrics with double-needle overlock sewing machines was solved, resulting in a smaller edging width and lower production costs.

CN224378415UActive Publication Date: 2026-06-19TAIZHOU LONGQI SEWING MACHINE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TAIZHOU LONGQI SEWING MACHINE CO LTD
Filing Date
2025-07-10
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing double-needle overlock sewing machines produce a wide overlock width when sewing thick fleece-lined fabric edges, which causes the garment to rub against the skin and is costly.

Method used

By swapping the positions of the two needles, the main needle and the auxiliary needle can work simultaneously. The needle spacing is reduced through the dual-needle drive assembly, and a single-row double-thread sewing is adopted. The needle hole positions of the presser foot and needle plate are changed to reduce the width of the fabric binding seam.

Benefits of technology

The width of the fabric binding is reduced, making the garment more comfortable and reducing fabric waste and production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of double needle strip overlock machines, belong to overlock machine technical field, including base, casing, the casing is fixedly arranged at base top, the base top edge is fixedly provided with needle plate, the needle plate top is provided with presser foot, the casing inside is provided with the presser foot handle component for driving the lifting of presser foot, the casing inside is provided with double needle drive assembly, the casing outer end is provided with the double needle head opposite up and down with the presser foot and needle plate, the double needle drive assembly is used to drive the synchronous movement of the double needle head, the casing outer end side edge is provided with the thread cutting component for cutting line, the base inside is provided with the feeding assembly for feeding cloth, the utility model changes double needle overedge interval position, so that the overall clothing overedge is made smaller, wear more comfortable, while reducing the production cost of clothing overedge width reduction cloth waste reduction.
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