| 摘要 |
In this automatic can palletizer cans are presented to a long draper and moved thereby to the rear end of a normally stationary short draper having at its forward end can clamps normally holding a front row of cans. A stripper plate lies adjacent the forward end of the short draper, and cans are delivered to it at transfer time. A hoist supports a pallet beneath the normal position of the stripper plate and raises a pallet to a level slightly below the stripper plate. A switch on the long draper releases the can clamps when a desired number of cans have been backed up behind the front row, and thereupon the short draper moves cans onto said stripper plate. Switches are actuated by the cans reaching a stripping wall at the end of the stripper plate, and they reenergize the can clamps, stop the short draper, and cause said stripper plate to move out beneath the stripping end wall and drop the cans onto the pallet or onto a layer of cans already on said pallet, to make a palletized can layer. The hoist is then lowered by the height of one layer of cans and is stopped. The stripper plate then returns to its original position adjacent the short draper. Each time the stripper plate reaches its fully stripped position it picks up a paper sheet the size of the area of the pallet, carries it with it on its return, and releases the paper sheet over the layer of cans. After a preselected number of layers has been deposited on the pallet, the hoist is automatically lowered and the loaded pallel transferred away from said hoist to a dock where it can be picked up and moved elsewhere. Meanwhile, a stack of empty pallets is retained adjacent the hoist, and one empty pallet is transferred to the hoist as the filled pallet is being transferred away therefrom, the empty pallet is then raised to its uppermost position. During this pallet transfer operation, the stripper plate is held in its stripped position, and as the empty pallet is raised and nears its uppermost position, the stripper plate is returned to its original position and deposits on the empty pallet a sheet of paper.
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