Sewing machine for automatically adjusting line taking for thickness of sewing material and line taking adjusting method thereof

Abstract

The invention provides a sewing machine for automatically adjusting line taking for the thickness of a sewing material and a line taking adjusting method thereof. The machine comprises a sewing material thickness detecting assembly for detecting the thickness of the sewing material, a line take-up mechanism and a controller, and the sewing material thickness detecting assembly comprises a detecting sensor; the line take-up mechanism comprises a line take-up rod, a connecting rod assembly and a fixedly arranged driving member, the line take-up rod is a bent member, the bending part is rotatablyarranged, a threading hole is formed in one end of the line take-up rod, one end of the connecting rod assembly is connected with the driving member, the other end of the connecting rod assembly is connected with the other end of the line take-up rod, the driving member drives the connecting rod assembly to reciprocate and swing, and the threading hole of the line take-up rod is at the lowest point or at the highest point; the driving member and the detecting sensor are both connected to the controller. By controlling the action time of the driving member, the machine changes the line take-uptime when the stroke of the threading hole of the line take-up rod is constant, so that the line taking is adjusted in real time with the thickness of the sewing material.

Description

technical field [0001] The invention relates to the technical field of sewing machines, in particular to a thread take-up mechanism for sewing machines and the sewing machine. Background technique [0002] A sewing machine is exactly a machine that sews sewing materials by sutures, including a needle bar mechanism, a thread take-up mechanism, a feeding mechanism, a thread hook mechanism, a pressing mechanism, and a thread clamping device. The thread take-up and passing mechanism is to guide and transport the suture on the thread reel to the sewing needle, and cooperate with the needle bar mechanism to feed the suture. [0003] Existing sewing machine, head 1 is provided with thread take-up mechanism, see figure 1 and figure 2 As shown, the thread take-up mechanism generally includes: a thread take-up lever 30 and a thread take-up crank 40. The thread take-up lever 30 is provided with a thread passing hole 301 through which sutures can pass. One end of the thread taking-up...

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a sewing machine and a method for automatically adjusting the take-up of the thread according to the thickness of the sewing material, which are used to solve the problem that the thread take-up mechanism of the sewing machine in the prior art cannot adapt to the cloth. thick question

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