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Braiding machine
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Braiding machine : ウィキペディア英語版
Braiding machine


A braiding machine applies varieties of yarns like: Nylon, polypropylene, polyester, polypropylene/polyester blend.
==Normal braiding machine==

Braiding machines work by a circular weaving process. They were well suited to be driven by the steam engines of the industrial revolution and were common by the beginning of the 20th century being easily powered by electric motors.
Common types of braiding machines work in much the same way as the process of decorating a May-Pole. At the start of decorating a May-Pole an even number of ribbons tied to the top of the pole. A group of people form a ring about the base of the pole and take a ribbon in hand. Half the people then travel clockwise and the other half counter clockwise. When the people pass one another they pass alternately to the right and to the left. This results in a downward forming braid on the pole. As the braid works its way down the pole, the ribbons become shorter and the angle of forming changes as the braid works lower on the pole. On a standard braiding machine, the supply lines are a constant angle and at a constant tension and hence the output braided product is uniform.
In a braiding machine, bobbins of thread pass one another to the left and right on pseudo-sinusoidal tracks, a peg at their bases is driven by notches in gears. These gears lie below the track plate that the thread carriers ride on, and an even number of gears must be used as there are always an even number of bobbins. The gears must be driven at multiple points on machines with two or more bobbin sets and cross-shafts are used. On a vertically oriented machine, the braided thread is taken up above the machine and height and diameter of a guide ring determines the characteristics of the braided product to some degree. On horizontal oriented machines, the braiding track plate and associated bobbins are turned through 90 degrees. This enables large stiff braided cables to be output horizontally so a tall factory building is not required. Braiding machines, although they have an apparent complex movement of bobbins, are mechanically simple and robust. Modern versions are very reliable and consequently can operate for many hours or even days without attention. This has enabled factories with hundreds of machines to be operated by just a few workers, reducing wages, and making products cheaper and/or profits higher. These modern machines have incorporated electronic controls with automated controls. Although ropes, cords and fishing line are still the core products of most braiding companies there are many other products including webbing, cable shielding and automotive products such as reinforced brake lines.
Some machines use a different system, where the motion of the thread carriers resemble a Teacup Ride.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Braiding machine」の詳細全文を読む



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