Automatic edge controller for industrial sewing machines

Abstract

The invention relates to an automatic edge controller for an industrial sewing machine, comprising a platform on which a pressing plate is fixedly arranged; the feeding direction of the sewing material is the X direction, and the horizontal and vertical direction thereof is the Y direction; the lower part of the platform is fixedly arranged The motor, electromagnet, the motor drives the synchronous belt to rotate, the synchronous belt is installed on the rigid rocker arm, and the ejector rod of the electromagnet pushes the rigid rocker arm upward, so that the upper end of the ratchet presses the cloth on the lower end surface of the pressing plate, The friction force between the sewing material and the pressing plate is much smaller than the friction force between the ratchet and the fabric; a pair of photoelectric switches are arranged along the Y direction near the sewing part on the platform. When the inner photoelectric switch cannot detect the sewing material, the motor is turned on. When the outer photoelectric switch senses the sewing material, the motor works in the reverse direction, and the synchronous belt drives the ratchet wheel to rotate in the reverse direction until the outer photoelectric switch cannot sense it. When sewing material, the motor stops working.

Description

technical field [0001] The invention relates to an industrial sewing machine, in particular to an automatic edge control device for an industrial sewing machine, which belongs to the technical field of edge control for industrial sewing machines. Background technique [0002] Existing industrial sewing machines, in the process of sewing the edge of the fabric, some control the edge according to the "backing", and some rely on computer programs and servo motors to control the sewing track. [0003] When the edge of the fabric to be sewn is in a straight line, the "backing" is used for alignment, and the edge can be manually controlled, and the effect can also meet the general requirements. However, when the edge of the fabric to be sewn is arc-shaped or other irregular lines, it is more difficult to control the edge manually, and the sewing effect is poor and the consistency is low. [0004] However, relying on computer programs and servo motors to control the sewing traject...

AI Technical Summary

Problems solved by technology

However, when the edge of the fabric to be sewn is arc-shaped or other irregular lines, it is more difficult to control the edge manually, the sewing effect is poor, and the consistency is low

[0004] However, relying on computer programs and servo motors to control the sewing trajectory requires a large cost investment, and is suitable for mass production of special parts, such as patch pockets on shirt pockets, and for some customized, non-batch clothing, or personalized For edge parts with a high degree of irregular curves, it is generally impossible to use computer programs and servo motors to control the sewing trajectory

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