proANT transport robot with lifting function for SLC
proANT 436 is a new developed autonomous guided vehicles (AGV) with a lifting function for SLC (small load carrier) which can be delivered with either of three types of load handling devices.
The lifting usually allows infinitely adjustable hand-over heights between 410 and 750 mm, but can be modified by customer request. In every pillar a spindle is integrated to lower or lift load handling. A cam belt connects both spindles that are synchronously driven. Thus, transport robots can realize different hand-over heights and can drive faster due to the center of mass lying optimally with a lowered load handling.
When the vehicle is driving longer routes, the load pick-up module is lowered to its lowest point to keep its balance point as low as possible and secure the load. The small „nose“ at the front piece of the robot is meant to ensure that the load does not skid ahead and fall off if an emergency stop is performed.
The robot is made to be „mirrorable“. One can take off its load-pick-up-module and turn it around to allow the robot to pick up loads from behind (current vehicles are delivered with frontal pick-up).
Passing loads at passive conveyor belts
Thanks to the transport robot’s lifting function, several SLC containers can be picked up at a cost-effective gravity belt with several holding ports.
Active load handling with belt conveyor
The belt conveyor (width 400 mm) allows a tranport of additional containers and small-sized boxes up to a maximum ground area of 600 x 400 mm. The robot drives frontally to a flat conveyor of a machine or Pick & Drop Station. Via a shared interface conveyor belts are activated and transfer (load and unload) takes place automatically on the same time. Of course, belt conveyor can be used to put load manually on the robot, too.
Passive load handling with skids
To realize load transfer the function of level adjustment is used. Instead of a belt conveyor both skids are mounted on the pillars of carriage. During delivery, between these skids there is enough space for two conveyor belts (or wheel rails or fixed rails for storage) where a container can be disposed. After skids are lowered enough, the vehicle can drive under the container which now remains or can be moved away.
Picking up a container works the opposite way. Due to upturn at the end of skids no additional attachment is necessary to avoid that loads drop down in case of an emergency stop.
Theoretically, load handling of containers can be realized forward or backward. The Pick & Drop Stations can be totally passive and simple shelfs. However, only solid formats of load (400 x 600mm) can be carried.
Active load handling „skids“ with small belt conveyor
This load handling combines the two versions of load handling mentioned above. Therefore it provides different ways of usage. In mixed operations it can be driven to totally passive Pick & Drop Stations or Stations with running bands or wheels and different highs. Here again only solid formats of load (400 x 600mm) can be carried.