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Novel thread cutting device for sewing machine

A technology of sewing machine and thread cutter, which is applied to the protection device of sewing machine, sewing equipment, mechanism for cutting thread in sewing machine, etc. It can solve problems such as finger injury, prolong service life, facilitate disassembly and replacement, and improve thread secant efficiency Effect

Inactive Publication Date: 2012-02-22
吴江丰榖布艺整理厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, although the pulling distance of the suture is reduced, the cutter is within the range of movement of the fingers during sewing, and it does not have a shield, which is easy to cause damage to the fingers

Method used

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  • Novel thread cutting device for sewing machine
  • Novel thread cutting device for sewing machine
  • Novel thread cutting device for sewing machine

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Embodiment Construction

[0017] The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present invention in a schematic manner, so it only shows the composition related to the present invention.

[0018] Such as figure 1 As shown, the present invention mainly includes two cylindrical barrels (1) and a blade (2) installed between the two cylindrical barrels (1). The two cylindrical barrels (1) have the same section radius and are coaxially installed. The blade (2) is installed vertically, and the plane of the blade (2) is perpendicular to the section of the cylindrical barrel (1). The width of the blade (2) is 1-2 mm, and the left and right sides are connected with the cylindrical barrel (1) as a whole. Both upper and lower ends of the blade (2) have cutting edges (3), and the vertical distance from the axis of the cylindrical barrel ...

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Abstract

The invention relates to a novel thread cutting device for a sewing machine. A vertical presser foot rod is arranged on a machine head of the sewing machine, a presser foot is connected to the lower end of the presser foot rod, and the thread cutting device comprises a blade connected to the rear end of the presser foot. The novel thread cutting device is characterized in that the blade is arranged between two cylindrical barrels which are arranged transversely. The cylindrical barrels play a role of stopping fingers of an operator from touching the built-in blade, meanwhile, no edge angles are arranged on the circular-arc outer surface of the cylindrical barrels per se, so that touching dangers are reduced when the blade is used for cutting a thread, and the use safety is increased. The width of the blade can be set to be 1-2mm so as to ensure that a sewing thread can get in accurately and a finger cannot touch the blade, thus, the thread cutting efficiency is increased on the basis of safety. The cylindrical barrels are arranged on the presser foot in a spiral connection manner, are convenient to detach and replace and have prolonged service lives. The novel thread cutting device disclosed by the invention has the advantages of simple structure, small size and low cost and is very suitable for the household sewing machine.

Description

technical field [0001] The invention relates to a sewing machine accessory, in particular to a novel thread cutter. Background technique [0002] When the sewing machine completes a sewing operation, the upper thread and the lower thread need to be cut off. Existing sewing machines are divided into automatic thread cutting and manual thread cutting. For sewing machines with automatic thread cutting function, there is generally a shearing mechanism mainly including a cutting knife and a movable cutting knife under the needle plate near the hook, which automatically cooperates with sewing thread cutting, which can greatly improve work efficiency and is very suitable for industrial sewing , but the structure is relatively complicated, and the use of home sewing machines may increase the cost that consumers think is unnecessary. Therefore, at present, manufacturers generally set cutters or scissors on the heads of popular home sewing machines, so that users can manually cut th...

Claims

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Application Information

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IPC IPC(8): D05B65/00D05B83/00
Inventor 陆名
Owner 吴江丰榖布艺整理厂
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