METHOD FOR DETERMINING YARN STATE TO BE SENT FIBER MACHINE BY DETECTING MOVEMENT OF YARN IN FRONT OF OPTICAL SENSOR AND APPARATUS THEREFOR

Japanese Patent JP3389262

B2

PURPOSE: To surely determine the proceeding state of a yarn to be sent to a fiber machine by producing electric signals to be used for driving a displaying apparatus, a machine controlling circuit, and similar apparatuses based on the alteration of the position and the shape of the yarn.
CONSTITUTION: Judgment of the moving or stopping state of a yarn to be monitored is carried out by a conical light beam at a wide angle produced by a light emitting element 2 and a photosensitive face 9 of a light receiving element having a large surface area. Electric currents 11, 12 flowing in the anodes 11, 12 are provided from the element 1 and produced as functions of the alteration of the position and the shape of the shadow 17 of a yarn 8 between the element 2 and the element 1 of the sensor S displayed on the photosensitive face 9. In the case the position or the shape of the shadow, that is the dark region 17, is changed on the photosensitive face 9, currents with different intensities are generated in the anodes 11, 12 of the element 1. The alteration of the position or the shape is caused during the transportation of the yarn 8 to the fiber machine and thus the movement of the yarn can be detected.

Chiziano Balear

JP18307492A

March 24, 2003

June 17, 1992

Click for automatic bibliography generation  

B.T.Esse Elle International Sochieta Peracioni

D01G31/00; D01H13/16; D03D51/28; D03D51/34; D06H3/08; G01P13/00; (IPC1-7): G01P13/00; D01G31/00; D01H13/16; D03D51/28; D03D51/34; D06H3/08

JP63179225A
JP3162612A
JP6441808A

Toshiharu Ogawa (1 person outside)

Previous Patent: DATA DRIVING INFORMATION PROCESSOR

Next Patent: SPARK-IGNITION TYPE INTERNAL COMBUSTION ENGINE