Abstract:
An improved fluid dispenser specially adapted to provide sample-size amounts of a fluid mixture is shown and described. An automated closure and seal system is provided for the manifold that moves, on command from a controller, from a closed or sealed position thereby limiting exposure of the manifold and fluid outlet nozzles from the ambient atmosphere, to a dispense system where a sample-size container is held up against and engaging a lower end of the manifold for a sealing element disposed on a lower portion of the manifold. When the dispense is complete, the system automatically moves back toward a closed position where the filled container is held open and ready to be removed by a technician before it is capped and labeled. An improved shelving system is also provided for housing a large quantity of different ingredients conveniently within a relatively compact cabinet thereby making the system suitable for a retail environment. An improved method of preparing a sample quantity of a fluid mixture is also disclosed.
Abstract:
A hot melt adhesive dispensing system includes an adhesive cut-off module, which introduces a non-adhesive liquid medium to cut-off a hot melt adhesive stream without forming an angel hair. The adhesive cut-off module includes a spool valve assembly which is configured to move from an adhesive dispensing position to a liquid dispensing position to cut-off the hot melt adhesive stream.
Abstract:
A suck-back valve having an open/close valve with a suck-back function is provided. The suck-back valve includes a suck-back chamber formed in a valve internal channel of the open/close valve, a piston shaft portion that connects the piston main body and an open/close pressuring member that moves in the suck-back chamber in the axial direction to apply pressure to a valve piece, bellows that accommodate the piston shaft portion inside, separating an actuator from the valve internal channel, and that are connected to the open/close pressuring member at one end and are supported by a casing at the other end, wherein a two-step operation is carried out at the time of the closing operation of the valve piece, including a valve closing operation step in which the piston shaft portion, along with the piston main body and the open/close pressuring member, moves to the fully closed position of the valve piece, and a suck-back operation step in which the piston shaft portion and the open/close pressuring member further move from the fully closed position of the valve piece so as to increase the volume of the suck-back chamber.
Abstract:
A suck-back valve having an open/close valve with a suck-back function is provided. The suck-back valve includes a suck-back chamber formed in a valve internal channel of the open/close valve, a piston shaft portion that connects the piston main body and an open/close pressuring member that moves in the suck-back chamber in the axial direction to apply pressure to a valve piece, bellows that accommodate the piston shaft portion inside, separating an actuator from the valve internal channel, and that are connected to the open/close pressuring member at one end and are supported by a casing at the other end, wherein a two-step operation is carried out at the time of the closing operation of the valve piece, including a valve closing operation step in which the piston shaft portion, along with the piston main body and the open/close pressuring member, moves to the fully closed position of the valve piece, and a suck-back operation step in which the piston shaft portion and the open/close pressuring member further move from the fully closed position of the valve piece so as to increase the volume of the suck-back chamber.