A system for distributing resin, the system comprising:
- at least one supply of resin;
- at least one conduit operatively connectable to a corresponding supply of resin;
- at least one pump operatively connectable to the at least one conduit for pumping resin from the corresponding supply of resin through said at least one conduit, said at least one pump including at least one piston pump having first and second ports operatively connectable to a corresponding conduit configured to pump resin through said corresponding conduit;
- a driving assembly operatively connectable to the at least one pump configured to drive said at least one pump, the driving assembly including a transmission assembly configured specifically depending on the nature of resin to be pumped through said at least one conduit by a transmission ratio;
- a discharging assembly operatively connectable to the at least one conduit configured to discharge resin out from the discharging assembly, the discharging assembly being also operatively connectable to said driving assembly configured to selectively and adjustably control operating parameters of said at least one pump;
- and
- at least one anti-return valve operatively disposed between the at least one supply of resin and the corresponding pump of the at least one conduit configured to prevent resin in the at least one conduit from being pushed back towards the corresponding pump due to a substantial pressure differential within the at least one conduit of the system, the at least one anti-return valve comprising at least one check valve provided about at least one of the first and second ports of the at least one piston pump, the transmission assembly of the driving assembly being operatively connectable to a corresponding piston of said at least one piston pump so that a driving of the transmission assembly via the driving assembly causes a reciprocating back-and-forth motion of the corresponding piston of said at least one piston pump in order to dispense resin via the discharging assembly;
- wherein the at least one piston pump comprises first and second piston pumps, the first piston pump being mounted onto a first conduit of the system configured to pump resin therethrough from a first supply of resin containing resin A, and the second piston pump being mounted onto a second conduit of the system for pumping resin therethrough from a second supply of resin containing resin B, resin B being intended to be mixed with resin A according to a specific mixture ratio before being discharged as a resulting mixed resin by the discharging assembly of the system, both pistons of the piston pumps being driven by a same distal pin being eccentrically mounted about the drive shaft, the piston pumps being further configured so that the volumetric displacement ratio between the first and second pistons be selected in accordance with the specific mixture ratio required between resins A and B.