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Technical characteristics of special sewing machine

Technical characteristics of special sewing machine

Special sewing machineIt belongs to a kind of professional sewing machine that can realize special sewing process. At present, its technical characteristics are mainly divided into two categories, namely the sewing technology to realize the sewing function and the control technology to realize the cycle sewing. In order for everyone to better understand the characteristics of special sewing machines, the following Dongguan Huaxin Sewing Equipment Co., Ltd. analyzes some of their common technical characteristics through several common models.

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The first is a flat-head lock machine. This type of special sewing machine was originally designed for sewing thin materials such as shirts, and the sewing pattern is firm and clean. Therefore, in the design, without exception, the rotary hook is used to hook the thread to form a lock-type thread loop, the iron rod is used to swing to achieve the zigzag stitch, and the variable-speed feeding realizes the requirements of different feeding amounts for different sewing parts.

The second is a sewing machine with round head buttonhole features. In order to meet the requirements of thick material buttonholes, a round head buttonhole machine with double-chain loops that can be threaded is designed. The sewing pattern is full and beautiful. The needle, looper, fork needle and dial needle combine to form a double-thread chain. Type thread loop, using the needle bar to swing to achieve zigzag stitches, the rotation of the needle bar and the needle bar frame to form round head stitches, the X and Y directions of variable speed feeding realize the different feeding amount of different sewing parts of the special sewing machine Claim.

The third is the tacking machine. The original design of the tacking machine was to improve the efficiency of reinforcement sewing on special parts of clothing. The design of the bar tacking machine basically adopts the lock loop of the oscillating shuttle hook thread; the variable speed feeding in the X and Y directions realizes the requirements of different feeding amounts for different sewing parts.

Another special type of sewing machine is a button sewing machine, which is a special sewing machine specially designed for the button sewing process. Most of the loopers are used to hook the thread to form a single-thread chain loop. Variable speed feeding in X and Y directions realizes the requirements of different feeding amounts for different sewing parts (or the needle bar swing plus one direction variable speed feeding). Timing control device required for sewing cycle. Of course, there are also flat stitch buttons that use lock loops, which are generally modified from bartacking machines. Due to the hard stitches, this type of special sewing machine is relatively rarely used, such as decorative buckles.

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It can be seen from the above analysis that in the design and manufacture of special sewing machines, it is necessary not only to grasp the proprietary technology, but also to better grasp the mechanism and technology of each machine type to realize its sewing mechanism. Among them, the proprietary technologies of special sewing machines mainly include segmented tension control technology, needle bar displacement technology, variable speed feeding control technology, sewing cycle timing control technology, sewing cycle speed change technology, automatic thread trimming technology, and sewing thread head control Technology etc.