Textiles: cloth finishing – Stretching or spreading and working – Weft angle adjusting
Patent
1986-06-10
1990-06-12
Schroeder, Werner H.
Textiles: cloth finishing
Stretching or spreading and working
Weft angle adjusting
D06C 300
Patent
active
049321064
ABSTRACT:
A pin wheel type weft straightener attached to various machines which are used for dyeing, printing, finishing of natural and synthetic fiber cloths, in which a pair of pin wheels straightens the skewing or the bowing of a travelling cloth while pinning both selvages of the cloth successively and the inclination angle of each pin wheel can be adjusted without changing the pinning starting position.
Each pin wheel is supported by a pin wheel stand which is movable in the widthwise direction of the cloth by the driving force of a motor or other actuators carried thereon.
Each pin wheel is urged in the divergent direction by a spring mechanism and the inclination angle is reduced when the cloth on each pin wheel is over-tensioned, and also the inclination angle is automatically reduced when the cloth on each pin wheel is interrupted travelling. They can mitigate an abnormal tension of the cloth and prevent the distortion, rupture or breakage of the cloth by automatically reducing the inclination angle to lessen the stretching of the cloth.
In order to obtain a sufficient overfed state preferable for the weft straightening, the travelling cloth is pushed by brush rolls, particularly brush rolls the peripheries of the section of which form the configuration of continuous waves, while pinned with a group of pins on the outer peripheral part of the pin wheels.
Drucker William A.
Schroeder Werner H.
Tsuchiya Machinery Co., Ltd.
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