Abstract: A nozzle for dispensing a random pattern of liquid adhesive filaments generally comprises an adhesive shim plate positioned between first and second air shim plates. The first air shim plate includes air slots configured to direct pressurized process air along a first angle relative to the adhesive shim plate, and the second air shim plate includes air slots configured to direct pressurized process air along a second angle relative to the adhesive shim plate. The first angle is different than the second angle so that the first and second air shim plates direct the pressurized process air asymmetrically toward adhesive filaments discharging from liquid slots in the adhesive shim plate.

Abstract: Apparatus for applying fluids such as adhesive, in particular hot-melt glue, onto a substrate that is movable relative to the apparatus. The apparatus includes a basic body (12) and an applicator valve (22) for selective interruption or release of the stream of fluid. The basic body (12) is connectable to a fluid source and includes a slit-shaped nozzle opening (54) that communicates with a distribution channel (14), and a piston (16) that is movably situated in the distribution channel (14), by means of which the length of the distribution channel (14) which may be supplied with fluid is variable. The nozzle opening (54) communicates with the distribution channel (14) by means of a plurality of output channels (18) spaced at a distance from each other.

Abstract: A nozzle for dispensing a random pattern of liquid adhesive filaments. The nozzle may include first and second air shim plates, an adhesive shim plate and first and second separating shim plates. The first and second air shim plates each have respective pairs of air slots. Each air slot has a process air inlet and a process air outlet and the air slots of each pair converge toward one another such that the process air inlets are farther apart than the process air outlets in each pair. The adhesive shim plate includes a plurality of liquid slots each with a liquid outlet. Four process air outlets are associated with each of the liquid outlets. The process air slots are adapted to receive pressurized process air and the liquid slots are adapted to receive pressurized liquid adhesive. The pressurized process air discharges from each group of the four process air outlets and forms a zone of turbulence for moving the filament of liquid adhesive discharging from the associated liquid outlet in a random pattern.

Abstract: A nozzle for dispensing a random pattern of liquid adhesive filaments. The nozzle may include first and second air shim plates, an adhesive shim plate and first and second separating shim plates. The first and second air shim plates each have respective pairs of air slots. Each air slot has a process air inlet and a process air outlet and the air slots of each pair converge toward one another such that the process air inlets are farther apart than the process air outlets in each pair. The adhesive shim plate includes a plurality of liquid slots each with a liquid outlet. Four process air outlets are associated with each of the liquid outlets. The process air slots are adapted to receive pressurized process air and the liquid slots are adapted to receive pressurized liquid adhesive. The pressurized process air discharges from each group of the four process air outlets and forms a zone of turbulence for moving the filament of liquid adhesive discharging from the associated liquid outlet in a random pattern.

Abstract: An apparatus for applying fluids such as adhesive, in particular hot melt adhesive, to a substrate movable relative to the apparatus, comprising a main body having a feed passage connectable to a fluid source, an application valve for selectively interrupting or enabling the flow of fluid in the feed passage, and a nozzle arrangement having a distributor passage connectable to the feed passage and at least one nozzle opening communicating with the distributor passage for delivery of the fluid. A body is movable in the distributor passage and has through passages which can be selectively associated with the nozzle opening by means of movement of the body in such a way that fluid is passed out of the distributor passage into the nozzle opening through at least one through passage.

Abstract: A nozzle for dispensing a random pattern of liquid adhesive filaments generally comprises an adhesive shim plate positioned between first and second air shim plates. The first air shim plate includes air slots configured to direct pressurized process air along a first angle relative to the adhesive shim plate, and the second air shim plate includes air slots configured to direct pressurized process air along a second angle relative to the adhesive shim plate. The first angle is different than the second angle so that the first and second air shim plates direct the pressurized process air asymmetrically toward adhesive filaments discharging from liquid slots in the adhesive shim plate.

Abstract: A device and a method for delivering a fluid, in particular hot-melt adhesive. The device includes a base member having an inlet opening for receiving the fluid from a fluid source and an outlet opening for delivering the fluid to a nozzle arrangement. The nozzle arrangement has a discharge passage with a discharge opening for delivery of the fluid. A heat transfer member heats or cools the fluid and includes a heat transfer passage through which the fluid can flow. The heat transfer passage is of a flow cross-section which changes in the flow direction.

Abstract: An application device (2) for applying fluid to a contour of a substrate, having a transfer wheel (4) for transferring the fluid from a fluid dispensing device (6), in particular a dispensing nozzle (18), onto the contour of the substrate, characterized in that the transfer wheel (4) has an axially tapering transport surface for transporting the fluid onto the contour.

Abstract: A nozzle for dispensing a random pattern of liquid adhesive filaments. The nozzle may include first and second air shim plates, an adhesive shim plate and first and second separating shim plates. The first and second air shim plates each have respective pairs of air slots. Each air slot has a process air inlet and a process air outlet and the air slots of each pair converge toward one another such that the process air inlets are farther apart than the process air outlets in each pair. The adhesive shim plate includes a plurality of liquid slots each with a liquid outlet. Four process air outlets are associated with each of the liquid outlets. The process air slots are adapted to receive pressurized process air and the liquid slots are adapted to receive pressurized liquid adhesive. The pressurized process air discharges from each group of the four process air outlets and forms a zone of turbulence for moving the filament of liquid adhesive discharging from the associated liquid outlet in a random pattern.

Abstract: Apparatus for applying fluids such as adhesive, in particular hot-melt glue, onto a substrate that is movable relative to the apparatus. The apparatus includes a basic body (12) and an applicator valve (22) for selective interruption or release of the stream of fluid. The basic body (12) is connectable to a fluid source and includes a slit-shaped nozzle opening (54) that communicates with a distribution channel (14), and a piston (16) that is movably situated in the distribution channel (14), by means of which the length of the distribution channel (14) which may be supplied with fluid is variable. The nozzle opening (54) communicates with the distribution channel (14) by means of a plurality of output channels (18) spaced at a distance from each other.

Abstract: The invention relates to a system for applying a fluid (118) containing solid particles. Said system comprises a nozzle arrangement (110) and a transport device (150). The angle formed between the transport direction (130) of the transport device (150) and an outflow channel (124) of the nozzle arrangement (110, 210, 310, 410) is obtuse. The invention also relates to the nozzle arrangement (110) and a filter arrangement (570) for one such system. Said nozzle arrangement (110) comprises an endpiece receiving element (112) and an endpiece (114) which is fixed thereto. A fluid channel is formed in the nozzle arrangement (110), said fluid channel comprising a connection channel (120), an adjacent distribution channel (122), and an adjacent outflow channel (124). The connection channel (120) and the distribution channel (122) are formed in the endpiece receiving element (112) and all directional changes inside the fluid channel are smaller than 90°.

Abstract: A device for dispensing fluid material onto a substrate including a base body with a flow channel for receiving the fluid material and a movable valve body positioned in the flow channel. The valve body is movable in a downstream direction into an open position to release a flow of the fluid material into the flow channel and is movable in an upstream direction into a closed position to interrupt the flow of the fluid material into the flow channel. A drive device moves the valve body between the open position and the closed position. A cylindrical chamber is positioned in the flow channel and the valve body includes a piston movable within the cylindrical chamber. The piston is sealed within the cylindrical chamber in such a way that when the piston moves in a first direction within the cylindrical chamber, the fluid material is displaced from the flow channel and when the piston is moved in a second direction opposite to the first direction, the fluid material is drawn into the flow channel.

Abstract: A device for dispensing fluid material onto a substrate including a base body with a flow channel for receiving the fluid material and a movable valve body positioned in the flow channel. The valve body is movable in a downstream direction into an open position to release a flow of the fluid material into the flow channel and is movable in an upstream direction into a closed position to interrupt the flow of the fluid material into the flow channel. A drive device moves the valve body between the open position and the closed position. A cylindrical chamber is positioned in the flow channel and the valve body includes a piston movable within the cylindrical chamber. The piston is sealed within the cylindrical chamber in such a way that when the piston moves in a first direction within the cylindrical chamber, the fluid material is displaced from the flow channel and when the piston is moved in a second direction opposite to the first direction, the fluid material is drawn into the flow channel.

Abstract: An apparatus for applying fluid to a substrate which is movable relative to the apparatus. A slotted nozzle assembly of the apparatus communicates with a fluid supply and includes an elongated slot with an outlet aperture. The length of the slot may be varied using a stopper which can move in the slot and seal it off laterally. In another aspect, the entire slot can be shifted and fixed in the direction of the longitudinal axis of the slot using a guiding and adjusting device.

Abstract: A device and a process for delivering fluid to moving webs, especially for delivering an adhesive to one or more strips. An applicator head can be moved in an essentially horizontal plane by an adjusting mechanism from an operating position, in which the discharge orifice of the nozzle is located in the region of the path of movement of the web, to a maintenance position, in which the applicator head is horizontally distanced from the path of movement of the web. The process is characterized by the fact that the mass flow or volume flow of the gas stream fed to and discharged from an application device is controlled as a function of the relative speed.

Abstract: An apparatus for applying fluid to a substrate which is movable relative to the apparatus. A slotted nozzle assembly of the apparatus communicates with a fluid supply and includes an elongated slot with an outlet aperture. The length of the slot may be varied using a stopper which can move in the slot and seal it off laterally. In another aspect, the entire slot can be shifted and fixed in the direction of the longitudinal axis of the slot using a guiding and adjusting device.

Abstract: The invention pertains to a device and to a process for the application of liquid to a substrate, especially for the application of an adhesive to hygienic articles, in which the liquid is discharged through a liquid outlet (36) of a nozzle unit (12) and applied to a substrate, where the substrate is in relative motion with respect to the nozzle unit (12), and in which the liquid, after emerging from the liquid outlet (36) of the nozzle unit (12), is influenced by two gas streams, the two gas streams being produced by two slot nozzles (58, 60), each of which has an elongated gas outlet (62).

Abstract: A device for applying free-flowing material to a movable substrate (1), especially for intermittent application of liquid adhesive. At least one supply channel (46) feeds free-flowing material and at least one nozzle unit (8) with at least one output channel is connected with the supply channel (46) and ends in an output orifice for delivering material. A valve mechanism interrupts the flow of material and includes a movable valve body (14) and a valve seat (44). The valve body (14) interacts with the valve seat (44) in such a way that the flow of material is interrupted by movement of the valve body (14) to a closed position and released by movement into an open position. The valve body (14) comes into contact with the valve seat (44) to interrupt the flow of material through a movement contrary to the direction of flow of the material.