초록 ▼

Apparatus for accumulating sheet material in stacked relation on a vertically descending tray and transferring the stack for subsequent processing. An oscillating transfer mechanism is positioned in the path of movement of the tray as it is lowered. The tray and stack is pivoted by cam means into a

Apparatus for accumulating sheet material in stacked relation on a vertically descending tray and transferring the stack for subsequent processing. An oscillating transfer mechanism is positioned in the path of movement of the tray as it is lowered. The tray and stack is pivoted by cam means into a complemental position with the transfer mechanism and as it passes the transfer mechanism is deposits the accumulated stack on the transfer mechanism. The transfer mechanism is then oscillated to remove the stack. When the stacking tray has assumed its transfer mode, an auxiliary sheet material receiving tray is formed by rotating two vanes from a vertical to horizontal position to receive subsequent sheets. Upon return of the stack tray to its initial position, the vanes are rotated back to their horizontal position dropping the accumulated sheets to the tray. A deflector which decelerates and positions the sheet material in the stack remains in contact with the stack and senses the level of the stack on the descending tray to deactivate the drive lowering the tray to assure that the stack reaches a certain height before transfer is effected.

대표청구항 ▼

Sheet material stacking and transfer apparatus comprising: means for receiving sheets of material in stacked relation, means connected to said receiving means for lowering said receiving means as said sheets of material are stacked on said receiving means, oscillating means disposed in the path of m

Sheet material stacking and transfer apparatus comprising: means for receiving sheets of material in stacked relation, means connected to said receiving means for lowering said receiving means as said sheets of material are stacked on said receiving means, oscillating means disposed in the path of movement of said receiving means as said receiving means is lowered for removing and transferring said stack of sheet material from said receiving means, means for forming an auxiliary receiving means that is engageable with a major portion of the lower surface of said stack intermediate its ends for subsequent sequentially fed sheet material while said oscillating means removes and transfers previously accumulated sheet material from said receiving means, and means for pivoting said receiving means to a complemental attitude with respect to said oscillating means as said receiving means is lowered towards said oscillating means.