Assembly device for stacked ring

The present invention relates to an apparatus for assembling a laminated ring comprising a plurality of endless ring components, such as a belt for use in a continuously variable transmission (CVT) or the like. When ring components of layers to assemble a laminated ring are unloaded from a component storage facility , a computer generates lamination combinatorial data representing a combination of ring components of layers. A target frequency distribution of circumferential length values of ring components of each layer is established, and lamination combinatorial data including ring components of a class where an error of an actual inventory frequency with respect to a target frequency is large are selected in a layer where an error between the target frequency distribution and an actual inventory frequency distribution is maximum. Ring components of all layers corresponding to the selected lamination combinatorial data are unloaded from the component storage facility . A distribution of size data of the ring components of each layer in the component storage facility is thus continuously maintained in a state capable of assembling more laminated rings , and the stable mass-productivity of laminated rings is continuously achieved.