Automatic edge-aligning sewing machine

Abstract

The invention relates to an automatic edge-aligning sewing machine. When a lower-layer cloth piece is detected from a lower-layer light hole, a signal is fed back to control a lower-layer air blow pipe to blow air; when a cloth signal is detected by an edge-aligning sensor, a signal is fed back to a lower-layer feeding motor to stop the motor from rotating; a cloth detection automatic deviation adjusting device is used for performing Y-direction deviation adjustment on the lower cloth piece; a cloth driving wheel device above an upper-layer cloth support plate is provided with a driving wheel supporting seat; the lower part of the driving wheel supporting seat is connected with a cylinder; the driving wheel supporting seat can be driven to move up and down through the extension and retraction of a cylinder carrier rod in order that a cloth driving wheel comes into contact or is separated from the cloth; when an upper cloth piece is detected through an upper-layer light hole, a signal is fed back to control the cylinder to pull down, and the driving wheel supporting seat is driven to move downwards; meanwhile, a signal is fed back to control an upper-layer air blow pipe I and an upper-layer air blow pipe II to blow air; when the cloth signal is detected by the edge-aligning sensor, a signal is fed back to an upper-layer feeding motor to stop the motor from rotating; cloth detection automatic deviation adjusting device is used for performing Y-direction deviation adjustment on the upper cloth piece.

Description

technical field [0001] The invention relates to a sewing machine, in particular to a sewing machine with automatic material feeding and automatic edge alignment, and belongs to the field of industrial sewing machine automation. Background technique [0002] A sewing machine requires a sewing machine operator, which requires a high level of sewing machine operator, and the labor intensity of the workers is high. During the sewing process, the material may cause the wrong side of the cloth, resulting in the scrapping of the two pieces of cloth. [0003] When the traditional sewing machine sews arc-curved cloth pieces, it not only requires a high level of operators, but also the stitches sewn by the cloth pieces are still not ideal, which increases the production cost of this process, but further affects the product quality. No improvement. [0004] The automatic edge-to-edge sewing machines on the market now use reflective sensors to control the edge-to-edge accuracy by contr...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: the existing automatic edge-to-edge sewing machine, due to the use of reflective sensors, needs to replace different edge-to-edge sensors according to the thickness of the sewing cloth, and the edge-to-edge machine has strict requirements on the thickness of the cloth; the edge-to-edge sensor replacement, The installation increases labor cumbersomeness, increases working hours, and reduces production efficiency; the sewing speed of the sewing machine is generally low, the sewing efficiency is low, the edge-to-edge effect is not ideal, the edge-to-edge accuracy is not high, and the sewing range is narrow, and only one can be completed. Or several working procedures; the degree of automation is not high enough to complete a series of coherent sewing actions

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