CARTESIAN ROBOTIC PAlLETIZERS WITH 4-7 PALLET POSITIONS
The Cartesian palletizers for 4 to 7 pallets positions are made with two distinct models of cartesian robots. The palletizer that uses a cartesian gantry robot, is able to realize islands also square in shape, where the pallet positions can be arranged as desired. The second model, cheaper, requires to have the pallet positions aligned.
GANTRY PALLETIZING ROBOT
The gantry robot palletizer presents the vertical axis protruding from the frame.
The standard model can palletize 3 to 7 pallet positions.
A pallet positions can be used for pallet storage and another for the interleaf.
In versions with heights greater than 1800mm palletizing, the vertical axis can be telescopic, to reduce the vertical dimension.
The main features are:
- Cartesian gantry robot with 3 or 4 axes.
- Max palletizing height up to 2400mm.
- Rotation of the gripper: pneumatic (0-90) or 0-360 ° with a servo motor.
- Productivity up 10 cycle per minute (on single pallet position).
- Telescopic vertical axis, for palletising heights above 1800mm.
- PLC Siemens S7-300 or Omron CJ1M.
- Color operator panel, touch screen 5,7 ".
- Servo motors connected to the PLC with Profibus (Siemens PLC only).
- The linear displacements are made with recirculating ball-bearing linear guides.
- Max lifting weight 90/60Kg (60Kg with telescopic vertical axis and stroke > 2000mm).
- Maximum palletising height of 2400mm.
- Perimeter protection in steel mesh, powder coating.
The side drawing depicts an example of application with 5 pallet positions, pallets warehouse and interleaves warehouse. The application provides for three conveyor lines from as many packers.
The drawing alongside shows an example of 3-palletizing positions, a warehouses for pallets and one for interleaves. The lay-out of the palletizing island is compact: the length is close to the width. Click image to enlarge.
OPEN CARTESIAN PALLETIZER
The open Cartesian palletizer is an economical solution for palletizing on multiple pallet positions. The machine lacks a frame: the robot illustrated below, runs on a rail longitudinal allowing to reach the pallet to serve. The machine has some restrictions compared to the previous model: the pallets must be aligned, the cross travel is limited. The speeds are lower than the model described above. The economic benefits are sensitive. A pallet position can be used for pallet warehouse and another for the interleaves warehouse.
The palletizer is made in 4 different versions: two economic models that use three-phase asynchronous motors with inverters, two models which use servomotors. The two pairs of models differ in the length of the Y axis transverse. The axis can be as short as in figure beside. The models with the short Y axis, require that the conveyors bring the products to be palletised on the same side of the pallets.
In figure beside shows the model with the transverse axis long which, bypassing the longitudinal axis on the ground, allows the removal of products from conveyor positioned on the opposite side with respect to the pallet. This solution allows great freedom in design layout.
The conveyors positioned on the opposite side to the pallet, must have a height low enough not to constitute encumbrance for the movement of the transverse axis.
The lay-out side, is typical of the Open Cartesian Palletizer. The side of the machine, where the rail is positioned, it can not be crossed (the upper side of the drawing). For the input conveyor of the product and the pallets are available movinentazione of the other 3 sides.
The essential features are:
- Cartesian palletizer with 3 or 4 axes.
- Maximum palletising height: 3000mm.
- Rotation of the griper: pneumatic 0-90° or 0-360° with a 4 th axis.
- Productivity up to 10 picks per minute (on single-pallet position).
- Max lifting weight 60Kg.
