Work loading method for automatic palletizer, work loading method, work loading apparatus and attachment replacing method thereof

A work loading method of an automatic palletizer for loading a work, which is carried out of a press, into a pallet by a robot;

• comprising the step of:
• controlling a loading position of the work based on a number of the works already loaded into said pallet before start of a work loading operation, and a number of works to be loaded into said pallet by the work loading operation.

A work loading method, comprising the steps of:

• positioning works, which are carried out of a press, with a plurality of centering devices located directly under a downstream of said press or a carrying-out conveyor attached to said press;
• and
• taking up the works, which are positioned by said plurality of centering devices every plurality of press cycles, to load them into pallets by a plurality of pairs of loading robots.

A work loading apparatus for loading a work, which is carried out of a press, into a pallet, comprising:

• a plurality of centering devices which are located directly under a downstream of said press or a carrying-out conveyor attached to said press;
• and
• a plurality of pairs of loading robots for taking up the works positioned by said centering devices to load them into said pallets.

An attachment replacing method of a work loading apparatus for positioning a work, which is carried out of a press, with a centering device and loading the positioned work into a pallet with a robot, said attachment replacing method being of replacing at least either one of an attachment for said centering device or an attachment for said robot according to the work, comprising:

• a first step of housing at least either one of a used attachment for the centering device or a used attachment for the robot into at lease any one of said pallets loaded on a pallet feeder which makes said pallets movable between a work loading position within a movable range of said robot and a predetermined position outside the movable range;
• and
• a second step of attaching at least either one of the attachment for the centering device to be used next or the attachment for the robot to be used next, which is placed on the same pallet as or a different pallet from the pallet housing at least either one of said used attachment for the centering device or said used attachment for the robot, to the centering device itself, or the robot.