| 摘要 |
<p>A hot melt adhesive applicator of a slot die type (18) or other type having an air supply to an adhesive service block through solenoids controlling the ON-OFF of the pneumatic adhesive applicator valves (16) is disclosed. One or more air valves (12) are directly mounted to the service block through an intervening air supply manifold base plate positioned atop an insulation plate (30) to significantly decrease the air path length and decrease the response time of the air valve. In the preferred embodiment, the insulation element is mounted within an elongate recess formed in the top surface of the service block. The insulation element is formed with cutouts to reduce the mass of the insulation element and provide better air insulation exposure between the bottom surface of the valve base manifold and the bottom of the recess exposed by the cutouts. Other improvements are also disclosed for use with or without the direct mounting of the air valve to the service block. <IMAGE></p> |
