Printing bags | Robot bag feeder from Haak

Following years of development, we have succeeded to produce a robotized bag feeder device for printing bags. This device, better known to us as the "robot bag feeder", is patented and, with a minor modification, it can feed jute as well as polypropylene bags one by one to be printed in the printing machine.

A feed belt is installed in front of the robot bag feeder and serves as the loading position for a stack of bags. Consequently, this stack is fed and transferred to the unstacking position within the frame of the robot bag feeder. There, the stack is processed until it has been entirely unstacked and fed. In the meantime, the loading position must be filled with a new stack of bags so that it can automatically be supplied, and the robot bag feeder can continue to feed and your printing machine can continue to print bags.

Picking up and feeding

The bags on the stack are picked up one by one by a hexa-axial robot with a gripper specifically developed for this purpose. This gripper can be adjusted in width in order to be able to pick up bags of various widths.

After the bag has been picked up, it is placed underneath the feeder rollers of the printing machine, following which the printing machine can print the bags. Thanks to the proper communication between the robot bag feeder and the printing machine, we can precisely attune these machines to each other for a faster bag printing process.

Productivity

The production of one printing line can be achieved by one employee. This can be performed even more efficiently through the use of two printing lines and two employees. In that case, the machine can run faster by filling the feed belt faster, by having one operator regulate the feeding and one operator empty the stacker. The latter can also assist in the feeding and ensure the supply of new bales. All this results in a faster bag printing process and hence increased productivity.