| 摘要 |
<p>A method and apparatus are disclosed for ultrasonically bonding endcaps 30 to a food or tobacco product container 10 comprised of a material dissimilar from the endcaps. Ultrasonic vibration is applied to the joint between the container and the endcaps, which includes a strip 20 of preapplied adhesive, so that the adhesive partially melts. The partially melted adhesive quickly resolidifies, providing a durable bond without the disadvantageous and time consuming use of wet glues. The apparatus includes a pair of opposingly mounted ultrasonic devices 70, 80 a controller 60, 61 associated with each ultrasonic device, and a general purpose computer 100 programmed to synchronize and monitor the controllers. <IMAGE></p> |
