Automatic mark calibration method, mark calibration mechanism and elastic-band sewing machine

Abstract

The invention provides an automatic mark calibration method, a mark calibration mechanism and an elastic-band sewing machine. The automatic mark calibration method includes the steps of S1, acquiring a mark pattern through an image sensor and forming a pattern template in a control system; S2, determining location of the image sensor and positioning the same according to location of the mark pattern on a finished band; S3, conveying a raw band, positioning the raw band when the image sensor detects that the mark pattern is the same with the pattern template; taking the end, which is disposed at a position of a cutter, of the raw band as a head end of the finished band; cutting off the raw band to form the head end of the finished band if the end of the raw band excesses the position of the cutter; S4, conveying the raw band and cutting off the raw band to form the tail end of the finished band according to the length of the finished band; and S5, repeating the steps of S3 and S4 during cutting of the finished bands in same specification, and repeating the steps from S2 to S4 during cutting of the finished bands in different specification.

Description

technical field [0001] The invention relates to the technical field of elastic band processing, in particular to an automatic marking method, a marking mechanism and an elastic machine. Background technique [0002] In the process of making trousers, elastic bands (also known as elastic bands) are usually used. By sewing the elastic bands to the ring at the upper end of the trousers, the trousers have elasticity. Pants with elastic bands are more commonly sports pants or panties. The elastic band can be sewn and wrapped in the trouser material or directly sewn outside the trouser material. Especially for some trousers for the sake of aesthetics or trademark pattern exposure, the elastic band is directly sewn on the trouser material and exposed, which is equivalent to a belt. In this way, it is necessary to consider the position of the exposed icon on the elastic band, so that the trousers have a better viewing angle after wearing them, for example, the trademark pattern is ...

AI Technical Summary

Problems solved by technology

The elastic band is made by the elastic machine. The existing elastic machine can only make one size of the elastic band fixedly. For example, each time the elastic band is cut with a total length of 50cm, ensure that the distance between the logo pattern and the head end is 25cm, so , the position of the logo pattern interval on the original rubber band that needs to be supplied is fixed correspondingly, and it is correspondingly used to cut the 50cm long rubber band; but different groups of peo...

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