| 摘要 |
PURPOSE: A detecting device of needle blockage is provided to prevent the device from having mechanical errors due to dust by examining whether a needle is blocked or not. CONSTITUTION: A detecting device of needle blockage comprises a jip(20) equipped with a hub which has a needle; a holding device(40) fastening a jig at the upper surface of a table(30); a bracket(50) located in the lower part of the table; a nozzle(60) equipped in the upper end portion of an ascending and descending rod; an air supplying apparatus(70) supplying air with the nozzle through an air hose; a solenoid valve equipped at the air hose; a digital pressure sensor(90) checking the inner pressure of the air hose in the closed state of the solenoid valve after supplying air with the air hose by opening the solenoid valve; and a controlling board which detects whether a needle blocks or not. [Reference numerals] (70) Air supplying apparatus; (80) Solenoid valve; (90) Digital pressure sensor; (95) Controller
|
