a sewing machine

Abstract

The invention provides a sewing machine, belongs to the technical field of sewing devices, and solves the problem that an existing sewing machine easily affects sewing quality when adjusting a fabric.The sewing machine comprises a needle plate, an adjusting plate is slidably connected with the lower portion of the needle plate, two material clamping seats are connected at two ends of the adjusting plate, two yielding notches are formed in the needle plate, the two material clamping seats penetrate upwards the two yielding notches, material clamping rods are slidably connected on the materialclamping seats, a plurality of material clamping wheels are rotatably connected at the lower ends of the material clamping rods, material clamping springs are arranged on the material clamping seats,the material clamping wheels fall by the material clamping springs, fabrics are closely clamped on the material clamping seats by the material clamping springs, an adjusting motor is arranged below the needle plate and can drive the adjusting plate to reciprocate when the fabrics are closely clamped by the material clamping wheels, and a releasing mechanism is arranged on the adjusting plate and can drive the material clamping wheels to rise and release the fabrics when the fabrics are adjusted in place. According to the sewing machine, a sewing path of a large fabric can be adjusted, and thesewing quality is improved.

Description

technical field [0001] The invention belongs to the technical field of sewing equipment, and relates to a sewing machine. Background technique [0002] The sewing machine is a relatively common garment processing equipment, and the sewing machine is becoming more and more intelligent. A position sensor is installed on the sewing machine to monitor the cloth on the sewing path. When the cloth deviates, the cloth can be corrected by the relevant mechanism. At present Usually it is operated by a friction wheel. A swing arm is installed on the sewing machine, and a friction wheel is connected to the end of the swing arm. The cloth passes under the swing arm. When the position sensor detects that the cloth is shifted, the swing arm descends to make the friction The wheel presses against the fabric, and then the friction wheel rotates to drag the fabric through friction. This mechanism is suitable for small or small-width fabrics. When the fabric is large, local force applied by t...

AI Technical Summary

Problems solved by technology

[0002] The sewing machine is a relatively common garment processing equipment, and the sewing machine is becoming more and more intelligent. A position sensor is installed on the sewing machine to monitor the cloth on the sewing path. When the cloth deviates, the cloth can be corrected by the relevant mechanism. At present Usually it is operated by a friction wheel. A swing arm is installed on the sewing machine, and a friction wheel is connected to the end of the swing arm. The cloth passes under the swing arm. When the position sensor detects that the cloth is shifted, the swing arm descends to make the friction The wheel presses against the fabric, and then the friction wheel rotates to drag the fabric through friction. This mechanism is suitable for small or small-width fabrics. When the fabric is large, local force applied by the friction wheel will easily cause fabric wrinkles. Affect sewing quality

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