| 摘要 |
Open containers are fed along a shelf into position under a lid dispenser, which places a lid thereon. The containers with their lids are then clamped one at a time to a chuck head, and a seamer apparatus is rotated about the lid and container to seam them together. The seamer apparatus includes oppositely disposed pairs of seaming rollers carried by brackets that are slidably mounted on a rotating frame member, the brackets being operated by individual hydraulic cylinders which move the seamer rollers into and out of engagement with the lids and their containers. A key feature of the invention is that the pressure exerted by the hydraulically operated seaming rollers is fully adjustable, as is the speed of their movement about the periphery of the lid.
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