Plate material conveying device

Abstract

The present invention provides a plate material conveying device including a compact traveling member to enable an increase in plate material conveyance speed and a reduction in time required for acceleration and deceleration and to allow small plate materials to be more efficiently conveyed, the plate material conveying device further enabling one of a gripper and a suction type plate material holder to be selected for conveyance of a plate material. Traveling members 13, 14 are provided on respective tracks 11, 12 so as to travel freely along the respective tracks 11, 12. Each of the traveling members 13, 14 has a plate material holder support frame 21, 22 supporting suction type plate material holders 23 A, 23 B, 23 C. The plate material holder support frame 21, 22 has a frame main body 21 a, 22 a, and a turning frame 21 b, 22 b which is turnable in a substantially horizontal direction with respect to the frame main body 21 a, 22 a and which is turnable to a position where the supported plate material planarly overlaps the adjacent track. Each of the turning frames 21 b, 22 b has a gripper 60 gripping an end of the plate material. An opening of the gripper is configured to face a central side of the plate material.

1 . A plate material conveying device characterized by comprising a plurality of tracks, and a first traveling member and a second traveling member which are provided on the respective tracks so as to travel freely along the respective tracks, and in that:
 each of the traveling members has a plate material holder support frame supporting plate material holders sucking and holding a plate material, and the plate material holder support frame has a frame main body and a turning frame which is turnable in a substantially horizontal direction with respect to the frame main body and which is turnable to a position where the supported plate material planarly overlaps the adjacent track, and in that each of the turning frames has a gripper gripping an end of the plate material, and grip openings of the grippers of the first traveling member and the second traveling member are configured to face a central side of the plate material.   
   
   
       2 . The plate material conveying device according to  claim 1 , characterized in that the plate material is a remainder material with inside thereof cut out, and the first traveling member and the second traveling member travel to convey the plate material that is the remainder material to a remainder material yard and then stack the remainder material on top of other remainder materials. 
   
   
       3 . The plate material conveying device according to  claim 1 , characterized in that the gripper is provided on the frame main body of the plate material holder support frame of each of the traveling members, and the plate material is gripped by at least a total of four grippers provided on the frame main body and the turning frame of the plate material holder support frame of each of the traveling members.