一种共轭凸轮提刀传动机构及提花机

By adopting a conjugate cam design in the jacquard machine, the peak time of the shedding trajectory curve is extended, solving the problem of shuttle friction against warp yarns and realizing high-speed weaving and efficient production of the jacquard machine.

CN224513730UActive Publication Date: 2026-07-17ZHEJIANG SUN JACQUARD LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG SUN JACQUARD LTD
Filing Date
2025-07-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The short peak time of the opening trajectory curve of the eccentric wheel structure in existing jacquard machines causes the shuttle to easily rub against the warp yarn, resulting in malfunctions and affecting the speed increase of the loom.

Method used

By adopting a conjugate cam design, the peak curve time of the opening trajectory curve is extended. Through the conjugate relationship between the first and second cams, the stable reciprocating motion of the knife lifting frame is achieved, reducing mechanical parts and lowering weight and energy consumption.

Benefits of technology

It extends the time for the shuttle to enter and exit the shed, avoids friction on the warp yarns, improves weaving efficiency, and enables high-speed weaving.

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Abstract

本实用新型涉及提花机技术领域,尤其是一种共轭凸轮提刀传动机构,在机架上间隔设置有第一提刀摆架和第二提刀摆架,在机架的一端设置有竖直方向的动力输入轴,在动力输入轴上设置有第一凸轮和第二凸轮,所述第一凸轮与第二凸轮形成共轭关系,在动力输出轴上设置有一个支架,所述支架上转动设置有第一滚轮和第二滚轮,在动力输入轴上设置摆动板,摆动板的两端分别转动连接有第一推进杆和第二推进杆。同时还公开了一种采用上述传动机构的提花机。本实用新型通过共轭凸轮改善凸轮曲线,将峰值曲线延长数倍,延长了开口张开时间,从而使梭子进入和退出梭口时都不会摩擦到经纱,有利于提速,实现高速织造,提高了织造效率。
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Claims

1. A conjugate cam-driven knife-lifting transmission mechanism, comprising a frame, wherein a first knife-lifting swing arm and a second knife-lifting swing arm are spaced apart on the frame, characterized in that: The first cam and the second cam are coaxial, the first roller and the second roller are coaxial, the first push rod and the second push rod are coaxial, and the first swing frame and the second swing frame are coaxial.

2. A jacquard machine, characterized by: The use of the reaping mechanism transmission mechanism as claimed in claim 1.