Novel intelligent template sewing machine and automatic induction sewing method

Abstract

The invention belongs to the technical field of sewing machines and particularly relates to a novel template sewing machine. The novel template sewing machine comprises a machine shell, the machine shell is provided with a cloth drag mechanism, a template photoelectric sensor and a controller, a needle plate of the template sewing machine is provided with a lower guide sleeve, a sewing needle penetrates through the lower guide sleeve, a thread is hooked by the lower guide sleeve, and the lower guide sleeve can be embedded in a guide groove in a template to be adapted. The novel template sewing machine further comprises an induction device. The induction device is used for sending out a control signal to the controller when it is detected that the sewing needle penetrates out of cloth upwards, and the controller controls a stepping motor of the cloth drag mechanism to be started according to the signal; the induction device sends out a control signal to the controller when the sewing needle penetrates into the cloth downwards, the controller controls the stepping motor of the cloth drag mechanism to be suspended according to the signal, and a motor shaft of the stepping motor drives a drag wheel to rotate through a universal coupling. When the sewing needle penetrates into the cloth, the cloth drag mechanism can be controlled by the controller to be suspended, so that cloth tear caused by non-correspondence of the cloth drag mechanism and the sewing needle is avoided.

Description

technical field [0001] The invention belongs to the technical field of lockstitch sewing machines, in particular to a novel intelligent template lockstitch sewing machine and an automatic induction sewing method based on the template locket sewing machine. Background technique [0002] ZL201320885396.3 discloses a template sewing machine, which includes a casing, an upper mop mechanism is arranged on the casing, a motor mounting frame of the upper tugwheel mechanism is arranged on the casing, a stepping motor is arranged on the motor mounting frame, and a stepping motor is arranged on the casing. The front end is pierced with a pressing rod, and the lower end of the pressing rod is connected with a tugboat installation frame, and the tugboat installation frame is connected with a tugboat through a tugboat shaft, and also includes a lower mop mechanism, and the lower tugwheel mechanism is arranged on the installation bottom plate of the casing, It is arranged symmetrically wi...

AI Technical Summary

Problems solved by technology

[0003] This technology has the following disadvantages: 1. The upper and lower tugboat mechanisms are used to cooperate with each other to prevent the formwork from slipping. The structure is complex and the cost is high; 2. The design of the floating presser foot will hinder the movement of the formwork. Phenomenon; 3. When the needle moves to the lower side of the fabric, the upper and lower tugwheel mechanisms are still running, resulting in a potential safety hazard of fabric being torn; 4. After the template is sewn, the presser foot of the sewing machine is lifted and the template is replaced. In this case, the presser foot and the tug wheel of the sewing machine are always in a raised state, which wastes electric energy, and the motor is easily damaged due to heat

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