Automatic cloth single-layered separation and fetching method and mechanism of sewing machine

Abstract

The invention relates to an automatic cloth single-layered separation and fetching method of a sewing machine. In a working process, a cloth sticking wheel and a cloth fetching device are pressed down together; firstly, the cloth sticking wheel is in contact with cloth; when pressure reaches a pre-set value of a pressure sensor, the cloth fetching device stops pressing down and the cloth sticking wheel is spliced with the cloth; after the cloth is stuck, the cloth fetching device ascends for a proper height; meanwhile, when the cloth sticking wheel swings upwards to be parallel to a fetching movement part, the cloth is separated in a singe layer to be fetched; the cloth sticking wheel continually ascends to be released from the cloth to be ready for secondary layering work; after each time of layering is finished, the cloth sticking wheel is driven by a sticking wheel stepping motor to roll for a certain angle to keep a new sticking surface; when the cloth sticking wheel is detected by a sensor assembly to rotate for one circle, a swinging motor drives the cloth sticking wheel to wholly swing to enter a cloth sticking wheel washing device to be washed; after the washing is finished, the cloth sticking wheel is oppositely driven by the swinging motor to wholly swing, and is detected by the sensor assembly to swing in place so as to enter a to-be-layered working state.

Description

technical field [0001] The invention relates to a sewing machine automatic cloth single-layer separation and taking method and mechanism, belonging to the technical field of sewing machine cloth taking. Background technique [0002] In the sewing industry of automatic sewing machines, the layering process when the fabric is automatically picked up is inseparable from human participation. Manual participation in the layering of the fabric is required. The labor intensity of people is high. The fabric is a flexible object with large differences in thickness and weight, and is breathable. There is also a large difference in sex, due to the combined action of gravity and applied force, the fabric cannot maintain a fixed shape during the moving process, which brings certain difficulties to automatic sewing. Layering of fabrics has always been an urgent problem to be solved in the sewing industry. Some machines are semi-automated, but not fully automated. The reason for this is th...

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Problems solved by technology

[0002] In the sewing industry of automatic sewing machines, the layering process when the fabric is automatically picked up is inseparable from human participation. Manual participation in the layering of the fabric is required. The labor intensity of people is high. The fabric is a flexible object with large differences in thickness and weight, and is breathable. There is also a large difference in sex, due to the combined action of gravity and applied force, the fabric cannot maintain a fixed shape during the moving process, which brings certain difficulties to automatic sewing. Layering of fabrics has always been an urgent problem to be solved in the sewing industry. Some machines are semi-automated, but not fully automated. The reason for the layering and movement of the fabric has not been solved.

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