Leather/thick material embroidery machine

Abstract

The invention relates to a leather / thick material embroidery machine which comprises a frame, a head arranged on the frame, upper and lower shafts transversely arranged on the frame, a needle bar box which is arranged on the head and can move transversely, a plurality of needle bars which are arranged on the needle bar box and can move up and down, a color switching driving mechanism which is connected with the needle bar box and drives the needle bar box to move transversely so as to select a needle bar to work, and a needle bar driving mechanism which is connected with the needle bars and drives the needle bars to move up and down, wherein the lower end of the needle bars is provided with a machine needle, a needle foot bar which is arranged on the head and can move up and down, a needle foot driving mechanism which is connected with the needle foot and drives the needle foot to move up and down, and a shearing device and a trapping device which are applicable to thick threads. By improving the arrangement and drive of the needle foot and matching with the shearing device and trapping device applicable to thick threads, the embroidery machine can be used for embroider a thick material or leather.

Description

technical field [0001] The invention relates to an embroidery machine, in particular to an embroidery machine suitable for sewing and embroidering leather and thick materials. Background technique [0002] Embroidery machines generally include a frame, a machine head arranged on the frame, upper and lower shafts arranged transversely on the frame, a needle bar box that can be moved laterally on the machine head, and a needle bar box that can be moved up and down on the needle bar. A number of needle bars on the box, a color-changing drive mechanism connected to drive the needle bar box to move laterally to select a needle bar to work, and a needle bar drive mechanism connected to drive the selected needle bar to move up and down, the traditional embroidery machine presser feet are all attached On the needle bar, a retaining ring is set on the needle bar, and the presser foot is set on the needle bar so that it can move up and down through the supporting member. The needle ba...

AI Technical Summary

Problems solved by technology

[0002] Embroidery machines generally include a frame, a machine head arranged on the frame, upper and lower shafts arranged transversely on the frame, a needle bar box that can be moved laterally on the machine head, and a needle bar box that can be moved up and down on the needle bar. A number of needle bars on the box, a color-changing drive mechanism connected to drive the needle bar box to move laterally to select a needle bar to work, and a needle bar drive mechanism connected to drive the selected needle bar to move up and down, the traditional embroidery machine presser feet are all attached On the needle bar, a retaining ring is set on the needle bar, and the presser foot is set on the needle bar so that it can move up and down through the supporting member. The needle bar is sleeved with a presser foot spring between the retaining ring and the supporting member. The rod is driven by the needle rod driving mechanism to move up and down, the needle rod descends, the presser foot is pressed tightly on the fabric, and the pressure is provided by the presser foot spring; The spring force of the presser foot is small, which is generally only suitable for embroidering thin materials. When embroidering thick materials and leather, the upper thread needs to be thick thread. The friction between the needle, thick thread and sewing material is too large. If the foot pressure is insufficient, the fabric will be lifted up by the needles, resulting in skipped stitches, thread breakage, and material displacement.

In view of the above problems, there are currently an embroidery machine presser foot independent drive mechanism with a patent number of 200910113690.0 and an embroidery machine with a patent number of 200810082757.4. Both patents solve the above problems through independent drive of the presser foot, but the presser foot of the above patent The components are all arranged on the needle bar box, which determines that each needle bar must be equipped with a set of presser foot components, which not only has high cost but also has a complicated structure. In addition, thick threads are used for embroidering leather and thick materials, which is not applicable in the prior art. Thread trimmer and clamping device for thick threads

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