Pallet Storage System

Pallet Storage System. 

The industrial PLC wich manages the process must take in account different informations relative to physical states as:

• The presence of a bag to the input of the system.
• The switch position.
• The presence of bags at the exit.
• The rank of the bag during the palleting process.

The system includes a switching functional chain of the bags a configuration and orientation functional subset of the bags ref and a module.

These three elements permit a progressive approach of the palleting process technology, and practical works oriented toward the knowledge of the sensors, pre actuators, actuators, effectors, the mechanical links and the initiation to automatics.

• A technical file including: The documentation of the components, the electric and pneumatics diagrams, the PLC program.
• A student file including the practical works.

Operative part

• Transfer by non end conveyor belt.
• Switching of bags by gearwheel-rack.
• Orientation of bags by air jacks.
• Configuration of the pallets by air jacks.
• Evacuation of the layer constituted by air jacks.

Pre actuators

• Contactors.
• Bistable distributors 5/2.
• Monostable distributors 5/2.
• Electro pneumatic Interfaces 3/2.

Actuators

• 2 reduction gears.
• 5 air jacks, double effect.

Sensors

• Photoelectric detectors.
• Inductive detectors.
• ILS detectors on jacks.

Control part

• PLC ScCHNEIDER
• Control desk.

• L x w x h = 1000 x 600 x 510mm,
• Mass: 68 kg.

Necessary energy

• Electricity: 220 V AC mono phase.
• Air compressed 6 bar.

Training features

• The system permits to visualize 5 operative tasks analyzed under a S.A.D.T form.
• The cycle is described by GRAFCET and GEMMA.
• The practical works permit to understand the various sequences of the program.

Teaching objectives

Mechanical engineering

• Transformation of the circular movement in rectilinear motion (motor-reduction gear-pulleys and belts). Automatics.
• The system permits the simulation of the GRAFCET and the exploitation of the GEMMA for the complete system.
• Switching Functional Chain Of The Bag (Functions with the module)

Teaching objectives

• Transformation of the circular movement in rectilinear motion (motor-reduction gear- gearwheel-rack).
• Measure of force, distance, time, displacement, electrical tension and current.
• Energy balance, notion of efficiency.

Automatics

• Connection of the pre actuator to the motor.
• Connection of the pre actuator to the PO.
• Simulation of the GRAFCET cycle.
• Dimensions: L x w x h = 500 x 360 x 230mm.
• Mass: 8 kg.

Teaching objectives

• Study of links: pivot, ball an socket joint, linear straight.
• Transformation of the straight linear movement in circular movement.

Automatics

• Connection of the air actuator.
• Connection of the pneumatic pre actuator to its

Control devise (switch button)

• Connection of the pneumatic pre actuator to the electro pneumatic interfaces.
• Connection of the electro pneumatic interfaces to the PLC.
• Simulation of the cycle relative to the studied module.
• Dimensions: L x w x h = 500 x 360 x 230mm