Abstract:
An ejector (1) for jetting a viscous medium onto a substrate (23) is disclosed. The ejector comprises a jetting chamber (2) adapted to accommodate the viscous medium, a nozzle (3) communicatively connected to the chamber, and an impacting device (4) adapted to impact a volume of the viscous medium in the chamber such that viscous medium is jetted through the nozzle towards the substrate. The impacting device comprises an actuating part (5) and an impacting part (6) and can be arranged in a first state, in which the actuating part and the impacting part are separated from each other, and in a second state in which the actuating part engages the impacting part and exerts a force on the impacting part, thereby causing the impacting part to impact said volume of the viscous medium in the chamber. A corresponding method for jetting viscous medium is also disclosed.
Abstract:
A system for dispensing material on a substrate includes a dispensing unit having a dispensing piston. The dispensing piston is pneumatically driven from a first lower position to a second upper position. The system further includes a solenoid valve coupled to the dispensing unit, with the solenoid valve being configured to control air flow to and from the dispensing piston. The solenoid valve includes a solenoid coil and an amplifier connected to the solenoid coil. The system further includes a controller coupled to the amplifier, with the controller being configured to generate a command signal to the amplifier to control current in the solenoid coil.
Abstract:
A dispensing head includes a housing defining an interior chamber and an inlet formed in the chamber. The inlet supplies the chamber with viscous material under pressure from a source of material. The dispensing head further includes a piston disposed in the chamber and a nozzle secured to the housing at a lower end of the chamber. The nozzle has an orifice extending in a direction co-axial with the chamber, with one of the housing and the nozzle defining a bottom wall of the chamber. The dispensing head further includes a valve seat provided on the bottom wall of the chamber. The valve seat includes a body having a valve seat surface disposed above the bottom wall of the chamber, with the body having an opening co-axial with the orifice of the nozzle to enable viscous material to flow through the valve seat surface during a dispensing operation.
Abstract:
A dispensing module (10) and method of dispensing an adhesive includes a dispenser body (12) having a valve element (18) and a nozzle (14). The nozzle (14) includes a nozzle member (24), a sealing zone (26), and a valve seat (28). The nozzle member (24) includes a liquid passageway (44) having a bore (48), a cylindrical surface (50), a second converging surface (56), and a shoulder (52). The sealing zone (26) is defined by the cylindrical surface (50) and extends from the bore (48) toward the shoulder (52) and engages the valve element (18) to close a first volume of the liquid passageway (44) from the inlet (42). The valve seat (28) is defined by the shoulder (52) and the second converging surface (56) and has a circular line of contact that engages the valve element (18) to close a second volume of the liquid passageway (44) from the inlet (42). The first volume reduces to the second volume as the valve element (18) moves distally along the sealing zone (26) for discharging the adhesive.
Abstract:
A dispenser, configured to dispense material on a substrate, includes a dispensing unit having a housing with a chamber, a piston disposed in the chamber and axially movable within the chamber, and a nozzle coupled to the housing. The nozzle has an orifice co-axial with the chamber of the housing. The dispenser further includes an actuator coupled to the dispensing unit and configured to drive the up-and down movement of the piston, and a compliant assembly coupled to the actuator and the piston. The compliant assembly is configured to permit limited relative travel between the actuator and the piston. A method of dispensing is further disclosed.
Abstract:
Die vorliegende Erfindung betrifft ein Dosiersystem (1', 1'') für einen flüssigen bis zähflüssigen Dosierstoff umfassend ein Aktorsystem (2), das mindestens ein Betätigungselement (29, 57) umfasst, und eine Düse (13) mit einer Austrittsöffnung (19). Dabei wird das Betätigungselement (29, 57) bei einer Bewegung in einer Verschlussrichtung (V) zuerst in einer ersten Teilbewegung so bewegt, dass es von dem Verschlusselement (15) an einem bestimmungsgemäßen Anschlagort (31) getrennt ist, und dann auf das Verschlusselement am Anschlagort (31) auftrifft und einen Impuls (I) auf das Verschlusselement (15) ausübt. Die Erfindung betrifft auch ein entsprechend ausgebildetes Dosierverfahren.
Abstract:
A system and method for releasably coupling a fluid dispenser (12) to a structure (18). There is a push to connect-pull to disconnect connector system (19) that has first (22) and second (20) mating connectors. A first connector (22) is mounted to the dispenser (12) and a second connector (20) is mounted to the structure (18). The connector system (19) accomplishes both mechanical and electrical interconnection between the dispenser (12) and the structure (18).
Abstract:
Die vorliegende Erfindung betrifft ein Verfahren zum Betreiben eines Beleimungssystems (10) zur Beleimung von Zuschnitten zur Herstellung und/oder Verpackung von Zigaretten oder anderen rauchbaren Gegenständen, bei dem die Zuschnitte an Leimventilen (11) des Beleimungssystems (10) entlanggefördert werden, wobei zur Steuerung und/oder Regelung der Leimventile (11) ein übergeordneter Mastercontroller (13) einzelnen, den Leimventilen (11) zugeordneten, dem Mastercontroller (13) nachgeordneten Controllern (15), die jeweils mit dem übergeordneten Mastercontroller (13) über eine geeignete Datenverbindung verbunden sind, jeweils Werte mindestens eines Steuer- und/oder Regelparameters übermittelt, anhand derer der nachgeordnete Controller (15) das ihm zugeordnete Leimventil (11) steuert und/oder regelt.