Nordson Corporation

Alan R Ramspeck

Scott Richard Miller

Paul S Brusko

Peter J Petrecca

Michael Walker

Paul K Colangelo

John Matthew Riney

Thomas Burmester

Michael Wayne Harris

Hubert Kufner

Benjamin J Bondeson

Bentley J Boger

Roger A Ziecker

Calibrating a plurality of fluid sensors of a remote metering system is disclosed. The system includes a material supply device including a main pump and a main flow sensor for monitoring an output of the main pump. The application system also includes a remote metering system for receiving the material flowing from the material supply device and applying the material to substrates. The remote metering system includes a first applicator assembly including a first applicator and a first flow sensor for monitoring an output of the first applicator, and a second applicator assembly including a second applicator and a second flow sensor for monitoring an output of the second applicator. The remote metering system further includes a controller in signal communication with the remote metering station and the material supply device. The controller performs a first and second calibration operations on the first and second flow sensors, respectively.

System and method for remote metering station sensor calibration and verification

A method of bonding first and second strands onto a substrate traveling along a machine direction in a plane of travel. The method includes moving the first and second strands in the machine direction relative to a nozzle having a nozzle body with first and second liquid discharge passages, and first and second side-by-side notches. The first and second strands are guided for movement by engaging closed ends of the respective first and second notches. Open ends of the first and second notches are oriented or directed non-perpendicular to the plane of travel of the substrate. Liquid adhesive is dispensed onto the first and second strands from the liquid discharge passages and the first and second strands are bonded to the substrate.

Method for guiding and bonding strands to a substrate

A computerized design system for configuring an adhesive dispensing configuration. The system enables a user to graphically or otherwise manipulate markers representative of dispensing components. Programmatic rules associated with the markers guide the design process by ensuring and/or prompting compatible and otherwise appropriate marker selections for inclusion in the design.

Adhesive system configuration tool

Adhesive dispensing nozzle

Apparatus for dispensing viscous liquid, such as hot melt adhesive, includes a manifold, a dispensing module, a heater thermally coupled to the manifold, and thermally insulating cover structure secured around both the module and the manifold. Air gaps are formed between the cover structure and the heated components inside to further reduce heat transfer. The cover structure may also include heat dissipating fins. A supply connector associated with the manifold includes an interior flow passage, an exterior annular recess and at least one port communicating therebetween. A valve includes a valve seat having an orifice and a sealing surface located around the orifice. The valve further includes a valve stem movable between open and closed positions and having a recess in one end and a sealing edge located around the recess. A valve module includes an integrated heating element for providing localized heat to the adhesive immediately prior to dispensing.

Dispensing apparatus for viscous liquids

A slot nozzle die for use with a coating dispenser includes a first die body having a tapered projection and a deflectable tab member horizontally spaced from the tapered projection to define a die seat therebetween. A second die body having a tapered projection is slidably received in the die seat formed in the first die body. The tapered projections of the first and second die bodies define an extrusion slot therebetween which receives coating material from the coating dispenser. A pair of air blocks are respectively mounted to lower ends of each die body to define a pair of air channels disposed at an angle relative to the extrusion slot. One of the air blocks is slidably received intermediate the deflectable tab member and the tapered projection of the second die body and cooperates with the deflectable tab member for translating the tapered projection of the second die body toward the tapered projection of the first die body to seal the first and second die bodies.

Self-sealing slot nozzle die

A fluid applicator having a multi-zone noncontacting die set for dispensing a selected plurality of thin flat fiberized adhesive streams as uniform rectangular strips of adhesive on a substrate. The die set uses shims to establish the fiberizing air slot, and the adhesive dispensing and fiberizing air shims have tapered tabs to provide improved coating edge control. The fiberizing air die also has simplified fiberizing air flow, and the die set includes a mechanism for clamping the die set together which is especially suited for a multi-zone die set. The fluid applicator includes a manifold heater with a simplified and improved air flow, and a universal adhesive manifold.

Fluid applicator

Fluid applicator with a noncontacting die set

An improved loop producing apparatus includes an adhesive gun and a nozzle member for emanating a bead of adhesive in a spiral pattern caused by the direction of air jets toward the adhesive bead as it emanates from the nozzle. A plenum chamber just upstream of the nozzle member is provided with diffusing or baffling means for diffusing the flow of air before it is introduced to the bores in the nozzle member. Overlapping loops of an adhesive bead are deposited onto a substrate in very consistent loop widths and with little loop width variation independently of the angular orientation of the nozzle member.

Growing community of inventors

Cumming, GA, United States of America

Alan R Ramspeck