Abstract: A work transfer apparatus for transferring a work within a press or between presses is provided which includes at least a pair of lift beams and carriers movable along a longitudinal direction of the lift beams. A pair of guides are provided on the carriers, and a pair of sub-carriers are movable along the guides in a carrier moving direction by a linear motor which moves the pair of sub-carriers in the carrier moving direction. A cross bar is laterally spanned between the sub-carriers and is provided with a work holding unit which is capable of holding the work.

Abstract: A work transfer apparatus for transferring a work within a press or between presses is provided which includes at least one lift beam which is provided in parallel with a work transfer direction and which is movable up and down, and which is provided substantially centrally in a work transfer path and outside of a press working area. A carrier is provided at the lift beam and is movable along a longitudinal direction of the lift beam. A guide is provided on the carrier, and a sub-carrier is movable along the guide in a carrier moving direction by a linear motor which moves the sub-carrier in the carrier moving direction. A work holding unit which is capable of holding the work is provided at the sub-carrier.

Abstract: A work transfer apparatus for a transfer press or a press, with which an optimal die can be designed for each process, is provided. For this purpose, the work transfer apparatus for a transfer press includes at least a pair of lift beams (13), carriers (15) movable along a longitudinal direction of the lift beam, paired sub-carriers (50) movable in a carrier moving direction, power transmission means (51, 54) for transmitting carrier driving force to the sub-carriers, and a cross bar (17) which is laterally spanned between the sub-carriers and provided with work holding means (18) capable of holding a work.

Abstract: A work transfer apparatus for transferring a work within a press or between presses is provided which includes at least one lift beam which is provided in parallel with a work transfer direction and which is movable up and down, and which is provided substantially centrally in a work transfer path and outside of a press working area. A carrier is provided at the lift beam and is movable along a longitudinal direction of the lift beam. A guide is provided on the carrier, and a sub-carrier is movable along the guide in a carrier moving direction by a linear motor which moves the sub-carrier in the carrier moving direction. A work holding unit which is capable of holding the work is provided at the sub-carrier.

Abstract: A work transfer apparatus for transferring a work within a press or between presses is provided which includes at least a pair of lift beams and carriers movable along a longitudinal direction of the lift beams. A pair of guides are provided on the carriers, and a pair of sub-carriers are movable along the guides in a carrier moving direction by a linear motor which moves the pair of sub-carriers in the carrier moving direction. A cross bar is laterally spanned between the sub-carriers and is provided with a work holding unit which is capable of holding the work.

Abstract: A work transfer apparatus for a transfer press or a press, with which an optimal die can be designed for each process, is provided. For this purpose, the work transfer apparatus for a transfer press includes at least a pair of lift beams (13), carriers (15) movable along a longitudinal direction of the lift beam, paired sub-carriers (50) movable in a carrier moving direction, power transmission means (51, 54) for transmitting carrier driving force to the sub-carriers, and a cross bar (17) which is laterally spanned between the sub-carriers and provided with work holding means (18) capable of holding a work.

Abstract: For a transfer feeder for use in a transfer press having a plurality of work stations in a press machine body, having a plurality of cross bars arranged as spaced apart from one another in a feed direction and operative to move two-dimensionally by a feed means and a lift means, and an attractive means carried by each of the cross bars for attractively holding a workpiece and movable therewith for transferring the workpiece into and from one of the work stations to another sequentially, a feed stroke varying apparatus is disclosed which comprises: a pair of lift beams adapted to be raised and lowered by the lift means; a plurality of cross bar carriers carried as spaced apart from one another by the pair of lift beams in the feed direction and each constructed of a principal carrier and a subsidiary carrier; a coupling means for interconnecting such principal carriers; a link member for connecting to the feed means one of the principal carriers which is located at a most upstream side thereof; a feed stroke c

Abstract: A transfer press, in which a work carrying-in or delivery apparatus (10) for feeding a work (5) into a press body (1), is provided at the upstream side of the press body. A transfer feeder is provided for sequentially transporting works to respective processing stations (W.sub.1, W.sub.2, W.sub.3, . . . ) of the press body. A work transporting apparatus of the transfer press includes a cam shaft (16) which is provided at an upper portion on an upstream side of the press body and is rotatable by driving power taken from a slide driving mechanism of the press body. A loader cam (112e, 112f) and a feeding cam (13a) are mounted on the cam shaft. And, a rocking lever (112a) and a feeding lever (13b) are pivotably mounted at an upper portion on an upstream side of the press body. The driving mechanism for the work carrying-in apparatus includes the loader cam and the rocking lever, and the feeding mechanism for the transfer feeder includes the feeding cam and the feeding lever.

Abstract: There is disclosed a hydraulic leakage proof apparatus for a transfer feeder in which a cam box (7a) containing a cam (8a) and a lever (9) that is oscillated by the cam is placed on or above a press machine (1). The cam box (7a) is formed through its bottom with an elongate opening (7b) through which the lever (9) may pass by a lower end side thereof. The apparatus includes a lower movable cover (16) operatively coupled to the lever (9) and facing downwards so as to cover the elongate opening (7b) while being displaced as the lever (9) is oscillated. The lower movable cover (16) has a lever through-going opening (16b) formed therein through which the lever (9) may pass. The apparatus further includes a cover member (22) facing downwards so as to cover the lever through-going opening (16b), and a gate plate (14) arranged on the bottom of the cam box (7a) and formed with a rising portion (14a) along an inner peripheral edge of the elongate opening (7b).