Abstract:
A valve module with floating member for use in a fluid applicator and a fluid applicator comprising said valve module are disclosed. The fluid applicator further includes a valve module that is configured to control a flow of fluid from the chamber to the cavity. The valve module includes an upper valve seat and a valve stem operatively coupled to the drive pin and extending from the chamber to the cavity. The valve module further includes a retaining tip attached to the valve stem and a floating member disposed in the cavity between the opening and the retaining tip such that the valve stem passes through the floating member and the floating member is movable along a longitudinal axis of the valve stem.
Abstract:
The present invention relates to melter for processing substantially solid, free-flowing adhesive particulate and supplying liquid adhesive. The melter has a tank for receiving adhesive, a heating device coupled with said tank for heating and liquefying adhesive particles, at least one pump for conveying the liquid adhesive, and a filling device for filling the tank with the substantially solid, free-flowing adhesive particulate. The filling device is arranged such that adhesive particulate can be fed into the tank through an inlet opening of said tank. The invention also relates to a filling device for filling a tank of an adhesive melter with substantially solid, free-flowing adhesive particles.
Abstract:
An intermediate piece includes an upper element and a lower element, and a check valve including a head and a spring element exerting an opening pressure on the head. The check valve is arranged between the upper element and the lower element at the first or second passage and is configured such that a first or second passage can be closed by the check valve and such ay that the first or second passage is opened when a dispensing pressure counteracting the opening pressure is applied at least at the respective flowable component.
Abstract:
Dispensing device for a fluid and method for dispensing fluid from dispensing device. Dispensing device includes a fluid channel; a chamber arrangement including at least one sealing element; a dispensing opening; a valve element configured to be movably disposed within the chamber arrangement and to interact with the dispensing opening; and at least one sealing element, arranged within the chamber arrangement, that is configured to create a seal against the valve element during a first predetermined stroke of the valve element.
Abstract:
A dosing system for a liquid or viscous dosing material, including an actuator system, that has at least one actuating element and a nozzle with an outlet opening. The dosing system is designed so that during a movement in a closure direction the actuating element is initially moved in a first partial movement in such a way that the actuating element is separated from the closure element at a stop location, intended for that purpose, and then comes into contact with the closure element at the stop location and exerts an impulse on the closure element. This also relates to a corresponding dosing method.
Abstract:
A dispensing module and method of dispensing an adhesive includes a dispenser body having a valve element and a nozzle. The nozzle includes a nozzle member, a sealing zone, and a valve seat. The nozzle member includes a liquid passageway having a bore, a cylindrical surface, a second converging surface, and a shoulder. The sealing zone is defined by the cylindrical surface and extends from the bore toward the shoulder and engages the valve element to close a first volume of the liquid passageway from the inlet. The valve seat is defined by the shoulder and the second converging surface and has a circular line of contact that engages the valve element to close a second volume of the liquid passageway from the inlet. The first volume reduces to the second volume as the valve element moves distally along the sealing zone for discharging the adhesive.
Abstract:
The invention relates to a method and to an apparatus for producing packs, in particular cigarette packs, from blanks (11, 44), wherein individual regions of a pack blank (11) are adhesively bonded to one another and, if appropriate, to one or more separate blanks (44) by the pack blank (11) being provided with individual portions of glue (28, 29) by means of a valve or a group of valves (26) and blank regions which are to be adhesively bonded together subsequently being held or pressed on one another, wherein the individual portions of glue (28, 29) are applied to the blank regions by means of the glue valve (27) or the group of glue valves (26), and/or wherein a control and/or regulating device (65) automatically controls and/or regulates the size or quantity of the respectively produced portion of glue (28, 29), which size or quantity is produced by the at least one glue valve (27) during an individual valve opening cycle, as a function of at least one parameter.
Abstract:
A fluid delivery device wherein the traditional quasi-planar doors or gates are replaced by one or more plugs of approximately inverted teardrop cross sectional shape. Said plugs rest and bear against a sealing surface to effect sealing of the tank shut, and are actuated in a direction contrary to the direction of fluid outflow, into the interior cavity of the tank or hopper plenum in order to effect opening and dispensing of the contained fluid. Exit flow is markedly more laminar and uniform that that attainable with conventional quasi-planar door or gate systems, providing an improved exit flow characteristic, and greater accuracy in placing the working fluid onto a target.
Abstract:
An applicator for dispensing a liquid conformal coating material onto a substrate. The applicator includes a body assembly with a liquid flow passage having a liquid inlet adapted to receive the coating material and a liquid outlet. A valve seat is positioned between the liquid flow passage and the liquid outlet. A valve stem is mounted in the body assembly for reciprocating movement between an open position and a closed position. The valve stem includes a first end and a second end. The first end of the valve stem engages the valve seat in the closed position to stop flow of the liquid coating material through the outlet and disengages from the valve seat in the open position to allow flow of the liquid coating material through the outlet. A valve actuating mechanism is operative to move the valve stem from the open position to the closed position and is further operative to move the valve stem from the closed position to the open position. A resilient dampening element is operatively coupled between part of the body assembly and the valve stem. The resilient dampening element provides a biasing force against the valve stem as the valve stem moves from the closed position to the open position to reduce rebounding movement of the valve stem toward the closed position.
Abstract:
A fluid dispenser device includes an internal cap adapted to cover top open ends of concentric inner and outer containers, and having first and second internal ports fluidly communicated with the top open ends, a conduit unit including a first conduit fluidly communicated with the first internal port through a first valve seat, a second conduit fluidly communicated with the second internal port through a second valve seat, and first and second valves respectively engageable with the first and second valve seats when the conduit unit is axially displaced, an inner shell engaged with the internal cap and the conduit unit, and a spline mechanism such that, when the inner shell is threadedly moved relative to the conduit unit, the conduit unit is displaced only axially to cause the valves to respectively disengage from the valve seats so as to permit dispensing of fluids contained in the containers.