PALLET TRANSPORT SYSTEM. WAREHOUSE AUTOMATION SLU Santa Engracia, Madrid (SPAIN) EN-2017-v06

Transcription

1 PALLET TRANSPORT SYSTEM EN-2017-v06

2 DESCRIPTION Warehouse Automation, has developed an advanced pallet transport system of the latest generation. The set of machines that compose it is the ideal complement of our Storfast automatic storage system. These machines are in charge of the movement of pallets from their origin in production, loading docks or handling areas to the automatic warehouse and the exit of these to expedition, preparation, manipulation or production. The movement of the pallets can be carried out both in the longitudinal direction by means of rollers and in the transverse direction by means of chains. Roller conveyor (RC) is based on galvanized steel rollers with a double pinion at its end, motorized two by two by chain loops, ensuring smooth, reliable and quiet movement. The design of these machines allows the inclusion of guides attached to the rollers to ensure the movement without undesired turns. Chain conveyor (CC), uses specially chosen chains to minimize the damage in the wooden base of the pallet, allows the displacement of the loads by their less favorable side. A duplex chain, which increases efficiency and durability, slides on a plastic anti-wear profile that allows smooth, quiet and very precise movement. The movement of all these elements is done by means of an electric motor, which is configured according to the desired loads and speeds, regulated by a driver. Both systems (RC & CC) are supported on steel structures with legs that can be adjustables in height. This factor allow an additional regulation in height in situ to guarantee a correct leveling independently of the floor. A firm fixation to the floor is guaranteed by expansion stud bolts or welding in the case of a metal floor. Both systems, rollers and chains, can be combined with frames specially designed to offer solutions to specific problems, such as: Change of direction maintaining the transport system, by means of a turn (SC). Change to 90º, maintaining the orientation of the pallet, by means of a transfer (TC), passing from rollers to chains or vice versa. Changing the roller / chain conveyor system by rotating the pallet 90º but maintaining the forward direction, by means of combined rotation / transfer mechanism (TCREG). Movement of the pallets long distances or to many destinations, moving them transversely to the direction of advance of the pallet through the use of carts (PM). Moving from one group of conveyors to another when they are at different levels of height by vertical movement (LC) The system allows the combination of the different machines, to form a solution leading to the needs of our customers.

3 CC CHAIN CONVEYOR Consisting of a metal frame anchored to the ground by steel fastening bolts, this give the chance to a height adjustment of up to ± 25 mm. to absorb deviations in the floor levelling. This frame is formed by two longitudinal tubes in whose ends, 5/8 "duplex sprockets are located to ensure the recirculation of the transport chains. We opted for this Z12 5/8 sprockets due to their small diameter, allowing the CC's to be mounted with the minimum gap between chains. The 5/8 " chain rolls through the top of each tube over a special sliding profile made of durogliss. At the bottom, it meshes with a pinion located on the shaft that transmits to both strands of the conveyor.this shaft is assembled with a sprocket to transmit the movement from the motor and one extra sprocket by each strand to transmit the movement to the transport chains. Conveyor is electrically powered by an AC motor controlled by a driver to adjust the speed and acceleration to make the movement of the pallet as fluent as possible. If the CC is going to be serving pallets to a machine that moves (like a cart or lift) will mount a different motor that wears a brake. 0,8 m/s. Max acceleration 0,5 m/s2

4 RS ROLLER CONVEYOR Consisting of a metal frame anchored to the ground by steel fastening bolts, this give the chance to a height adjustment of up to ± 25 mm. to absorb deviations in the floor levelling. This frame is composed by two bended profiles that supports the rollers. This rollers are bolted to the plates and gives the RC an extra stiffness. Transmission is made between rollers using a 5/8 simplex chain loop joining the rollers one to the next. Conveyor is electrically powered by an AC motor controlled by a driver to adjust the speed and acceleration to make the movement of the pallet as fluent as possible. If the RC is going to be serving pallets to a machine that moves (like a cart or lift) will mount a different motor that wears a brake. The detection of the pallet is made by photo eyes We can provide different kind of accessories for the RC as machine guards, pallet guides or forklift truck stops. 3 m/s. Max acceleration 0,8 m/s 2

5 TC TRANSFER CONVEYOR The main functionality of this conveyor is to change the transport direction and the orientation of the pallet in the same movement. This change of direction without turn has to be done at a different transport height. That is the reason why the machine is equipped with an internal lift system to change between rollers to chains and vice versa. Our machines has the rollers at a fixed height and the moving part is the chains frame, which simplifies the machine construction when more than two strands are needed. The TC is the blend of one RC with a CC plus a lift structure equipped with an AC motor to make the elevation of CC frame possible. The machine is equipped with a limit switch to ensure the position of the CC frame first to pick or let the pallet, and several photo eyes to detect the pallet. 0,3 m/s Max acceleration 0,3 m/s 2 Lift time. 1 s

6 SC SWIVEL CONVEYOR The main functionality of this conveyor is to change the transport direction but maintaining the orientation of the pallet Consisting of a metal frame anchored to the ground by steel fastening bolts, this give the chance to a height adjustment of up to ± 25 mm. to absorb deviations in the floor levelling Over that frame, a rotating ring with interior teeth is mounted to provide support and movement to the upper frame. It s possible to mount a RC, CC or TC over that ring to get the desired solution. The swivel conveyor is electrically powered by an AC motor controlled by a driver to adjust the speed and acceleration to make the movement as smooth as possible. The position of the machine is controlled by four inductive sensors. To prevent undesirable collisions, the machine has an internal mechanic stop that avoid to over pass the working angle. The conveyor over the rotating ring can be configured as needed, so this machine is quite versatile. 0,3 m/s Max acceleration 0,3 m/s 2 Turn time 4 s

7 PM PALLET MOVER The pallet mover (PM) is encharged of the transport of loads from a part of the installation to another one far from the first or with several intermediate stations that could take or let a pallet to the line without the need of long lines of machines (less expensive, but less buffer) It s quite interesting to use them when the need is to connect one or more infeed points with one or more out lines (gravity lanes, picking zones, load docks..) Over the main frame it s possible to mount different conveyors, as nee- ded, roller conveyors, chain conveyors...,single or dual mode (to transport two pallets at a time). The design of the PM we have developed allows us to have carts to run loads at 230mm of transport height and no embebed rails to other with wheels inside the frames to allow transport heights of 800mm and no very tall structures to the rails, saving money on civil works Conveyor is electrically powered by an AC motor controlled by a driver to adjust the speed and acceleration to make the movement as fluent as possible. Max acceleration 3 m/s. 0,8 m/s2