| 摘要 |
<p>PROBLEM TO BE SOLVED: To uniformly coat paper with paste by facilitating the fine adjustment of a stroke quantity of a needle capable of opening and closing the aperture part of a nozzle member and making the flow rate of the paste accurate. SOLUTION: In the paste coating apparatus, a paste discharge means 80 is constituted of a nozzle member 81, a needle 82, a solenoid SL for operating the needle 82 and a return spring 85 for energizing the needle 82, and the axial line of the plunger SLa of the solenoid SL is allowed to coincide with the axial line of the needle 82, and the plunger SLa and the needle 82 are brought to integrated assembling constitution and a positioning means is provided to the lower part of the plunger to be brought into contact with the bottom part of the solenoid SL, and the movement of the plunger SLa is stopped to position the plunger SLa and the needle 82 is straightly moved by the straight movement of the plunger SLa to open and close the orifice part of the nozzle member 81.</p> |
