| 摘要 |
<p>A method used in conjunction with a yarn splicing device having a pneumatic splicing chamber, a compressed air line connecting the splicing chamber to a source of compressed air, an electromagnetic splicing valve disposed within the compressed air line and having two transitional positions (open and closed) for controlling delivery of the compressed air to the splicing chamber, and a control unit connected to the valve for initiating a transitional signal to the valve for opening and closing of the valve, the method including, after initiating the transitional signal to the valve, the steps of determining a value representing a characteristic of the changing air pressure prevailing in the compressed air line resulting from a transition of the valve from the open position to the closed position, comparing the determined value with a reference value, and generating an error signal if the difference between the determined value and the reference value is greater than a predetermined variance value. Preferably, the air pressure prevailing in the line is determined after a predetermined length of time following initiation of a transitional signal, and the generating of the error signal preferably includes the activation of an optical and an audible alarm. The reference value is preferably either operator-entered or calculated from other determined values from other similar splicing devices. The present invention also includes a device operating in accordance with the described method.</p> |
