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US 4,664,577 AGranted
Apparatus for stacking generic sheet-like elements such as sheets, hides, boards, and the like
OwnerVincenza Bonaliinventor
Life of this patent
Estimating the term…
Abstract
The apparatus comprises a load-bearing frame overlying a stacking stand or shelf and supporting at least one gripping element connected to an entrainer and adapted to pick up a sheet-like element being fed from a transport. The apparatus further comprises an element for supporting the sheet-like element as picked up from the transport and actuated by at least one gripping element during its movement to entrain the sheet-like element, members for disengaging the supporting element from the at least one gripping element, and members for opening at least one of the gripping elements cooperating sequentially with one another to then release the sheet-like element which is deposited onto the stack on the stacking stand or shelf.
Claims12
An apparatus for stacking generic sheet-like elements such as sheets hides, boards and the like, comprising at least one stack supporting member;
- a load-bearing frame overlying said stack supporting member;
- transport means for conveying sheet-like elements to said load-bearing frame;
- entrainment means in said load-bearing frame;
- first and second gripping elements connected to said entrainment means and translating on said load-bearing frame along a translation path for picking up a sheet-like element being fed by said transport means and stacking it on said stack supporting member, each said gripping element comprising a pair of rollers including, respectively, lower and upper rollers and first and second rollers, said rollers of each pair being mutually connected through respective lower and upper arms interlinked around a center pin, and elastic means acting on said arms for elastically closing together said rollers of each pair, tilting over means for alternatively tilting over the sheet-like elements, said tilting over means being carried on said load-bearing frame and including a longitudinal bar vertically reciprocable on said loadbearing frame for engagement with said lower and second rollers of said first and second gripping elements for rotatively driving said lower roller and second roller on said gripping elements translating on said load-bearing frame;
- a movable element supported on said load-bearing frame for supporting the sheet-like elements as picked up from said transport means, said movable element being actuated by said gripping elements during translation on said load-bearing frame;
- disengagement means in said load-bearing frame for disengaging said movable element and causing deposition of the picked-up sheet-like element on said stack supporting member, and opening means carried on said load-bearing frame for opening said gripping elements for picking up and releasing the sheet-like elements.
3 more elements
An apparatus for stacking generic sheet-like elements such as sheets, hides, boards and the like, comprising a stack supporting member;
- a load-bearing frame overlying said stack supporting member;
- transport means for conveying sheet-like elements to said load-bearing frame;
- a movable carriage translatable on said load-bearing frame along a reciprocation path;
- an entrainer supported on said load-bearing frame and including a piston supported on said load-bearing frame and having a rod operatively connected to said movable carriage;
- a gripping element supported on said moveable carriage and including a first gripping roller having a rotation axis rigid with said movable carriage and a second gripping roller having a rotation axis connected to a lever element journalled to said movable carriage;
- a small auxiliary piston supported on said movable carriage and connected to said lever element for oscillating said lever element and bringing said second gripping roller against and away from said first gripping roller for picking up a sheet-like element being fed by said transport means and stacking it on said stack supporting member;
- a supporting element for the sheet-like elements, carried on said load-bearing frame and movable therealong;
- actuating means carried on said movable carriage and including a lever journalled to said movable carriage, said lever being connected at one end thereof to a small release piston and defining a gripping lug, said small release piston causing the oscillation of said lever for selectively bringing said gripping lug in engagement with and disengaging said gripping lug from said supporting element;
- first and second sensors at said transport means for sensing the introduction of a sheet-like element into said apparatus and sensing the length of the introduced sheet-like element, said sensors controlling the actuation of said piston, of said small auxiliary piston and said small release piston.
6 more elements
An apparatus for stacking generic sheet-like elements such as sheets, hides, boards and the like, comprising a stand;
- a load-bearing frame overlying said stand;
- transport means for conveying sheet-like elements to said load-bearing frame;
- a movable carriage translatable on said load-bearing frame;
- an entrainer supported on said load-bearing frame and including a piston supported on said load-bearing frame and having a rod operatively connected to said movable carriage;
- a gripping element supported on said movable carriage and including a first gripping roller having a rotation axis rigid with said movable carriage and a second gripping roller movable to and from said first gripping roller;
- and tilting over means for tilting over a sheet-like element being entrained by said gripping element, comprising at least one sprocket pinion coaxial with said first gripping roller and removably engageable with a chain supported on a cross-bar movable with respect to said load-bearing frame in a vertical direction, said first and second gripping rollers having one-way rotation means for preventing rotation in the direction of withdrawal of the sheet-like element on the side of said transport means for feeding the sheet-like elements.
3 more elements
Dependencies are inferred from the claim text.