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Sewing machine without bobbins

A sewing machine and bobbin technology, applied in the direction of sewing machine components, sewing machine ring mechanism, sewing equipment, etc., can solve the problems of reducing the sewing efficiency of the sewing machine, inconvenient use of the sewing machine, etc., so as to improve the sewing efficiency, reduce the possibility, and be convenient to use Effect

Pending Publication Date: 2018-10-26
王加进
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since the amount of thread provided by the bobbin is less, it is necessary to frequently replace the bobbin thread on the lower bobbin during use, which causes inconvenience in the use of the sewing machine and reduces the sewing efficiency of the sewing machine

Method used

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  • Sewing machine without bobbins
  • Sewing machine without bobbins
  • Sewing machine without bobbins

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1: a kind of bobbinless sewing machine, as figure 1As shown, it includes a frame 1, a feeding structure, a wire jumper structure, a thorn material structure and a hook wire structure. The frame 1 includes a platen 12, an upper case 11 and a lower case 13, the upper case 11 and the lower case 13 are respectively fixedly connected to the upper and lower ends of the platen 12, and the platen 12 is fixedly connected with a fixed frame 121 for supporting. The jumper structure and the spur structure are installed on the upper case 11 . Feeding structure and hook line structure are installed in lower cabinet 13. A driving motor is installed in the upper chassis 11, and the driving motor is used to provide power for the feeding structure, jumper structure, stab material structure and hook line structure.

[0044] Such as figure 1 As shown, the thread hook structure includes a lower shaft 2 , a rotary hook 3 , a guide rod 31 and a thread supply assembly 4 . The lo...

Embodiment 2

[0051] Embodiment 2, a kind of bobbinless sewing machine, such as Figure 5 As shown, the difference from Embodiment 1 is that the wire supply assembly 4 is located below the lower case 13 , and the lower case 13 is provided with a plurality of wire loops 132 . The right end of the lower case 13 is provided with a wire through hole 131 , and the wire supply assembly 4 is located vertically below the wire through hole 131 . The wire supply assembly 4 includes an installation cylinder 41, a cylinder 42 and an untwisting structure 43. The installation cylinder 41 is cylindrical in shape with an upper end open, and the bobbin 42 is wound with a bottom thread. The bobbin 42 is placed in the installation cylinder 41, and the installation cylinder 41 is used to prevent miscellaneous Objects come into contact with the bottom thread and affect sewing. The bobbin thread on the bobbin 42 is unrolled and passed through the untwisting structure 43 and then enters the lower casing 13 throu...

Embodiment 3

[0053] Embodiment 3, a kind of bobbinless sewing machine, such as Figure 7 As shown, the difference from Embodiment 1 is that the transmission structure 5 includes a first permanent magnet 56 and a second permanent magnet 57, both of which are bar magnets. The first permanent magnet 56 is fixedly connected with the left end of the lower shaft 2 , and the second magnet is sleeved on the guide rod 31 and fixedly connected with the rotary hook 3 . The ends of the first permanent magnet 56 and the second permanent magnet 57 are close to each other and have opposite magnetic poles. When the lower shaft 2 rotates, the first permanent magnet 56 will drive the second permanent magnet 57 to rotate. In order to avoid magnetization of the fixing base 122 , the fixing base 122 is made of aluminum and is fixedly connected to the platform 12 by bolts.

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Abstract

The invention discloses a sewing machine without bobbins, and belongs to the field of sewing devices. By the aid of the sewing machine, the problem of deterioration of the sewing efficiency of existing sewing machines due to frequent bobbin replacement can be solved. The technical scheme mainly includes that the sewing machine comprises a framework; a lower shaft is rotationally connected with theframework, a guide rod is fixedly connected with the framework, the guide rod and the lower shaft are coaxially arranged, a rotating shuttle which can be driven by the lower shaft is rotationally connected with the guide rod, and the guide rod is provided with a thread through channel which is communicated with the inside of the rotating shuttle. The sewing machine has the advantages that the sewing machine is reasonable in structure, large quantities of threads can be provided to the sewing machine from the outside via the thread through channel, bobbin replacement can be omitted, and accordingly the sewing efficiency of the sewing machine can be improved.

Description

technical field [0001] The present invention relates to a sewing device, and more particularly, it relates to a bobbinless sewing machine. Background technique [0002] Sewing machine is a sewing machine commonly used in modern life and production process. The stitches sewn by the sewing machine are neat and beautiful, smooth and firm, with fast sewing speed and easy use. [0003] At present, the sewing machine all uses its bottom thread to be arranged on the bobbin in the rotary hook, utilizes the shuttle point of the rotary hook to catch the thread loop, expands the thread loop simultaneously, and guides the thread loop to surround the bobbin to form a lock stitch. [0004] Because the amount of thread provided by the bobbin is less, it is necessary to frequently replace the bottom thread in the lower bobbin during use, thereby causing inconvenience in the use of the sewing machine and reducing the sewing efficiency of the sewing machine. Contents of the invention [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D05B57/22D05B57/36D05B57/10
CPCD05B57/10D05B57/22D05B57/36
Inventor 王加进
Owner 王加进
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