B29C44/461

Method of designing and manufacturing a distributor bar for applying a viscous foamable liquid mixture onto a laminator
11389820 · 2022-07-19 · ·

Method of designing and manufacturing a distributor bar for use in a production line comprising a mixing head for providing a viscous foamable liquid mixture, a laminator with a predefined speed of at least 20 m/min, the distributor bar having a central inlet fluidly connected to a number of outlets via a main channel. The method comprises: choosing (3001) a geometry for the distributor bar and defining a set of geometrical parameters; assigning (3002) values to said parameters; creating (3003) a virtual model; simulating (3005) flow in said model by performing a Computational Fluid Dynamics simulation (CFD), taking into account (3004) a non-Newtonian shear thinning model; e) evaluating the simulated flow; building (2007) a physical distributor bar. A distributor bar, a production line, and a computer program product.

FLEXIBLE FILM FLUID-DISPENSING DEVICE
20220250291 · 2022-08-11 ·

A flexible film fluid-dispensing device including (A) at least one flexible film liner member having a flexibility property of from 3.6e-10 Nm to 2 Nm; (B) a rigid frame member for receiving the flexible film liner member and for removably holding the flexible film liner member in place during the flow of fluid through the flexible fluid-dispensing device; and (C) a connection means for connecting the flexible film fluid-dispensing device to the outlet feed stream of a fluid production process line; a process of manufacturing the above flexible film fluid-dispensing device; and a process for dispensing a fluid using the above flexible film fluid-dispensing device.

A PANEL MEMBER PRODUCTION LINE
20220250289 · 2022-08-11 ·

A manufacturing line for manufacturing a multilayer foam panel member including: (a) a storage of the components for a foam-forming fluid reactive mixture; (b) a dosing system for flowing the components of the foam-forming fluid reactive mixture to a chamber for mixing the components of the foam-forming fluid reactive mixture to form foam-forming fluid reactive mixture; (c) a flexible fluid dispensing device for receiving the foam-forming fluid reactive mixture; (d) a means for flowing the foam-forming fluid through the flexible fluid dispensing device to dispense the foam-forming fluid; (e) a moving first bottom sheet substrate for receiving the foam-forming fluid dispensed from the flexible dispensing device; (f) a means for allowing the foam-forming fluid to react, as the fluid travels on the moving bottom sheet substrate, wherein a foam material forms inbetween the moving first bottom sheet substrate and a second top sheet substrate to form a panel structure; (g) a panel structure comprising the foam material disposed inbetween the top metal sheet and the bottom metal sheet; (h) a means for curing the foam material to form an integral part of the top and bottom sheet substrates and to form a cured panel structure; and (i) a cutting means for cutting the panel structure into predetermined discrete panel member sections; and a process for manufacturing a multilayer foam panel member using the above manufacturing process.

A MULTILAYER PANEL MEMBER
20220250354 · 2022-08-11 ·

A multilayer foam panel member including: (a) at least one top sheet substrate; (b) at least one bottom sheet substrate; and (c) a middle substrate of foam material disposed inbetween, and integral with, the top and bottom sheet substrates; wherein the foam material is produced by dispensing a reactive foam-forming fluid mixture onto a moving or stationary bottom sheet substrate of a foam manufacturing line; and wherein the foam manufacturing line includes a flexible film fluid dispensing device for dispensing the reactive foam-forming fluid mixture onto the moving or stationary bottom sheet substrate to form a multilayer foam panel member; wherein the middle substrate of foam material of the panel member has improved thermal and mechanical properties; and a process for manufacturing the above multilayer foam panel member.

HOT MELT ADHESIVE FOAM DISPENSING SYSTEM
20220105481 · 2022-04-07 ·

A dispensing system for dispensing hot melt adhesive foam onto a substrate is described. The dispensing system comprises a pump having a first input to receive a hot melt adhesive and a second input to receive a gas, where the pump mixes the hot melt adhesive and the gas to produce a solution and pump the solution at a volumetric flow rate. The dispensing system also includes a valve to control an amount of the gas provided to the pump from the second input, a flow meter to measure the volumetric flow rate of the solution pumped by the pump, and a dispenser to receive the solution from the pump and dispense the solution to create the hot melt adhesive foam.

HOT MELT ADHESIVE FOAM DISPENSING SYSTEM
20220105480 · 2022-04-07 ·

A dispensing system for dispensing a hot melt adhesive foam onto a substrate is described. The dispensing system comprises a pump having a first input to receive a hot melt adhesive and a second input to receive a gas, where the pump mixes the hot melt adhesive and the gas to produce a solution. The dispensing system also includes a temperature sensor to detect a temperature of the solution, a dispenser to receive the solution from the pump and dispense the solution, and a controller. The controller instructs the pump to operate at a first speed, receives the temperature of the solution, and instructs the pump to operate at a second speed that is different than the first speed in response to the signal.

FOAMING AGENT INCORPORATED INTO A THERMOPLASTIC FOR AN ADDITIVE MANUFACTURING SYSTEM
20210138734 · 2021-05-13 ·

An additive manufacturing system is disclosed and includes a first heating element configured to receive a first supply of thermoplastic material and a second heating element configured to receive a second supply of plastic material. A foaming agent is incorporated into the second supply of plastic material and is configured to expand at an activation temperature. The additive manufacturing system also includes a control module in electronic communication with both the first heating element and the second heating element. The control module executes instructions to instruct the first heating element to heat the first supply of thermoplastic material to a first extrusion temperature and instruct the second heating element to heat the second supply of plastic material to a second extrusion temperature. The second extrusion temperature is equal to or greater than the activation temperature of the foaming agent.

VARIABLE DEVICE AND METHOD FOR APPLYING A FOAMABLE REACTION MIXTURE TO A MOVING COVER LAYER

The invention relates to a device for applying a foamable reaction mixture to a moving cover layer, comprising a mixing head (100) having at least two inlets (200, 300) and at least one outlet (400) for mixing components that produce the foamable reaction mixture, and a conduit (410, 420, 430, 440) connected to the outlet of the mixing head, through which conduit the foamable reaction mixture can flow, and which has a discharge element (500), from which the foamable reaction mixture can be applied to the cover layer. The conduit (410, 420, 430, 440) is designed to include at least two configurations, which differ in the path length, which the reaction mixture flowing through the conduit covers. The invention further relates to a method for applying a foamable reaction mixture to a moving cover layer using a device according to the invention.

METHOD FOR PRODUCING AN INSULATION PANEL
20200331010 · 2020-10-22 ·

A method for producing an insulation panel, including a cover layer and a layer of insulating material located thereon, between which the layer of insulating material is located. The insulating material is produced by metering at least two components of a reactive mixture, mixing and feeding them to an inlet of a distributor. The reactive mixture is guided in the distributor along a flow path to at least five nozzle openings and discharged. The reactive mixture is applied from each nozzle opening in a free jet onto the upper side of the cover layer which moves in a conveying direction relative to the distributor. The impact points of the jet of reactive mixture on the cover layer lie substantially on a line which extends transversely to the conveying direction. The distance of the two laterally outermost impact points is at least 70% of the width.

METHOD AND DEVICE FOR PRODUCING FOAM COMPOSITE ELEMENTS

The present disclosure relates to a process and an apparatus for applying a foamable reaction mixture to a moving outerlayer, the reaction mixture being applied from discharge openings on the outerlayer, and the outerlayer moves at a speed of 15 meters per minute relative to the discharge openings. The 510 device also comprises 7 discharge openings.