Automatic waistband sewing machine

Abstract

The invention discloses an automatic waistband sewing machine which comprises a machine sewing main body consisting of a sewing machine and an active pressing wheel arranged below the sewing machine.The automatic waistband sewing machine also comprises an elastic stretching device, wherein the elastic stretching device comprises an elastic, an assisting wheel, a fabric supporting steel plate, anarc-shaped steel sheet, a deviation rectification wheel seat, a first step motor and a lead screw module; the first step motor provides power for the lead screw module; and the deviation rectificationwheel seat is arranged on the lead screw module. The automatic waistband sewing machine further comprises an elastic alignment device, wherein the elastic alignment device comprises an elastic alignment wheel, a seam detection sensor, a first synchronous wheel, a first synchronous belt and an alignment wheel step motor. According to the automatic waistband sewing machine, the displacement sensoris used for detecting seams on waistband elastic bands, so that starting points of machine sewing are always consistent. The effect of high self friction of a belt in a belt deviation rectification device is used for driving pants, so that the size of seam allowances is adjusted during machine sewing. The automatic processing of a waistband sewing process is realized through the cooperation of thedeviation rectification device and a transmission wheel, so that the production efficiency and the sewing effect are improved.

Description

technical field [0001] The invention relates to the technical field of garment processing equipment, in particular to an automatic waist-topping machine. Background technique [0002] The common situation in the waist upper process is to first put the waist elastic on the interlock sewing machine, and then put the inner side of the elastic into the trousers body. When putting the trousers on, the sewing position of the elastic itself must be aligned with the center of the back waist of the trousers. In the process of sewing, workers need to use their hands to assist (i.e. clamp the elastic and trouser body to be sewn firmly with fingers), this auxiliary action needs to be repeated until the sewing is completed, so that the elastic band and trouser body The length is always consistent and there can be no deviation in the horizontal position at the start and end of the sewing, so the worker's operating level directly affects the production efficiency of the process. [0003] ...

AI Technical Summary

Problems solved by technology

[0003] At present, in the garment industry, there is only a movable support that stretches the waist elastic to assist workers in stitching underwear of various sizes, but this cannot effectively reduce the dependence of the process on the worker's auxiliary gestures; therefore, this equipment is designed to stretch the waist After the elastic band and trouser body are put on the interlock sewing machine, a series of sensors and mechanical structures are used to adjust the relative position of the elastic band and the trouser body in the sewing process to achieve the effect of the worker's auxiliary gesture on the sewing machine

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