Device and method for automatically sewing lock-type stitches made of super-thick and special materials

Abstract

The invention discloses a device and a method for automatically suturing locking stitches made of super-thick and special materials, and the device comprises a pre-pricking assembly which comprises a pre-pricking needle used for puncturing a prefabricated body; the suturing assembly comprises a suturing needle used for suturing the prefabricated body; the third driving unit is used for switching the positions of the suture needle and the pre-pricking needle; in any suture process of forming the lock stitch, the pre-puncturing needle punctures the prefabricated body, and then the suture needle sutures the prefabricated body. The sewing needle and the pre-pricking needle which are arranged in an up-and-down hiding mode are changed into the sewing needle and the pre-pricking needle which are arranged in a left-and-right hiding mode, the sewing needle does not need to be lifted up by 100 mm for parallel hiding, the upper thread penetrating through the sewing needle can be reduced to 50-60 mm after the sewing needle is lifted up, the sewing needle only needs to be lifted up to exceed the thickest sewing material, and friction damage to the thread is much smaller.

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