A separate upside-down double-thread lock stitch sewing device

Abstract

The invention relates to a separated inverted filling double-thread locking stitch sewing device which comprises a needling thread leading module and a thread penetrating and hooking module. The thread penetrating and hooking module and the needling thread leading module are arranged in a separated manner and provided with independent driving mechanisms, the needling thread leading module is arranged below a fabric to be sewn for completing needling thread leading, and the thread penetrating and hooking module is arranged above the fabric to be sewn and used for hooking a thread and shuttle threading. According to the device, by the aid of a separated inverted filling structure, the needling thread leading module is arranged below the fabric to be sewn, the thread penetrating and hooking module is arranged above the fabric to be sewn, the boundary dimension of a sewing module in a conical die is shortened, and a structure with large size is mounted outside the die. The sewing device can be applied to three-dimensional sewing of lager-size cones and solves the problem that a conical groove is provided with small inner space and large in sewing size and has a certain close performance under the condition. Sewn stitches are two equidistant double-thread locking stitches, and sewing strength can be ensured.

Description

technical field [0001] The invention relates to the field of sewing devices, in particular to a separate flip-chip double-thread lock stitch sewing device. Background technique [0002] At present, unilateral suture technology is mainly used for three-dimensional suturing, including OSS unilateral suture technology and Aerotiss03S unilateral suture technology. Among them, OSS unilateral suture technology forms single-thread chain suture stitches, and the sutures of Aerotiss 03S unilateral suture technology are buried in There are no interlocking knots within the fabric. [0003] At present, in the conventional double-sided sewing device, the components under the sutured fabric are mainly the rotary hook and the related transmission structure. Due to the small size of the suture groove of the three-dimensional mold, the structure under the fabric in the conventional double-sided suture technology cannot be placed in the suture of the three-dimensional mold. in the slot. In ...

AI Technical Summary

Problems solved by technology

[0003] At present, in the conventional double-sided sewing device, the components under the sutured fabric are mainly the rotary hook and the related transmission structure. Due to the small size of the suture groove of the three-dimensional mold, the structure under the fabric in the conventional double-sided suture technology cannot be placed in the suture of the three-dimensional mold. In the tank

In the conventional double-sided stitching technique, the positions of the upper and lower parts of the fabric correspond to each other. If it is to be applied to large-scale tapered stitching, the sewing parts of the cloth need to match the size of the tapered mold, which leads to excessive size and volume of the sewing parts. , not suitable for industrial mass production

Therefore, conventional bilateral suturing devices cannot be applied to large-scale three-dimensional suturing

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