Method and apparatus for stacking block-like articles

Details Method and apparatus for stacking block-like articles Method and apparatus for stacking block-like articles

B - Operations, Transporting

65

G

270/82

B65G 57/30 (2006.01)

Patent

CA 1151686

METHOD AND APPARATUS FOR STACKING BLOCK-LIKE ARTICLES ABSTRACT OF THE DISCLOSURE Method and apparatus for assembling concrete block or other non-fragile block-like articles into multi-tiered stacks or "cubes". Individual tiers of blocks are formed and cyclically fed in succession onto a stationary work table. An elevating frame carries a clamp assembly operable to com- pressively grip an individual tier on the work table from opposite sides of the tier. When an individual tier on a work table is thus clamped, the elevating frame is raised to elevate the gripped tier about the work table to a height such that another tier can be fed onto the work table in underlying relationship to the gripped tier. The elevated tier is then lowered by the elevating frame until the gripped tier is supported upon the tier now located on the work table. At this point, the clamp assembly is released and the elevat- ing frame is fully lowered so that the clamp assembly can now be applied to grip the lower tier supported upon the work table. The elevating frame is then again elevated, now carry- ing two tiers one supported on the other, and a third tier is fed onto the table for a repetition of the process. The ap- paratus also includes support tines on the elevating frame which are projected into underlying relationship with the lowermost tier at the time this tier is engaged by the clamp assembly. The tines are vertically movable between rollers which form the work table surface and are withdrawn from be- neath the lowermost tier in an initial stage of the elevating frame lowering process. In normal operation, the tines do not supportingly engage the blocks, but do provide a safety support system.

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