Press machine

Claim 1

A transfer device for use in a press machine to infeed workpieces for work, to advance workpieces from one workstation to another, and to outfeed finished workpieces comprising: a longitudinal extending rail mounted in front of a body of said press machine by means of brackets fixedly secured, respectively, to side faces of said press machine body, said brackets being arranged to project outwardly along said side faces; a main body located in front of said press machine body and movable along said rail; a lift member mounted on said main body so as to be movable in a vertical direction; a transfer means fitted to said lift member so as to be movable backwardly and forwardly with respect to the longitudinal direction of said press machine body to infeed workpieces for work, to advance workpieces from one workstation to another, and to outfeed finished workpieces, said transfer means including holder means and a plurality of transfer members arranged in spaced-apart relation in a longitudinal direction of a bed of said press machine and mountable in said holder means, said plurality of transfer members consisting of two groups of said transfer members, a first group of which is adjustable along said longitudinal direction of said bed with respect to a second group such that the space interval between one of said groups with respect to the other is adjustable as said main body is moved along said rail, whereby said transfer means can provide a different length of infeed transfer and a different length of outfeed transfer during a single longitudinal stroke, while maintaining the ability to transfer workpieces from one workstation to another, all in a direction along the longitudinal direction of said press bed, at least one of said transfer members being detachably stowable on said press machine body so as to be freely attachable and detachable to said transfer means by moving said holder means backwardly and forwardly with respect to said press machine body; and drive means for driving said main body, said lift member and said transfer means respectively.