Patent classifications
B29C44/461
APPARATUS AND METHOD FOR APPLYING A FOAMING REACTION MIXTURE ONTO A LAMINATOR
Laminated panels are made in a process whereby a starting foam formulation is processed through a mixhead, passed through a branched distribution system and dispensed through multiple outlets of the distribution system to produce a foam layer on a bottom facing layer. The foam layer is monitored for the presence of surface bubbles. When surface bubbles are observed, the backpressure in the mixhead is increased to reduce or eliminate the surface bubbles. An apparatus for performing the process includes an adjustment means at or upstream of a first branch point in the distribution system to increase or decrease the backpressure in the mixhead.
FOAMING MIXTURE DISPENSING APPARATUS AND METHOD
An adjustable distributor apparatus (10) for dispensing a foam forming mixture comprising a main body (20) and adjustment plate, the main body featuring at least one inlet, one channel, and one outlet, the inlet, channel and outlet in fluid connection such that a fluid may pass through the inlet into the channel and exit from the channel through the outlet, and the outlet being coupled with at least one adjustment plate (40), the adjustment plate featuring at least a first face, a second face opposing the first face, and an outlet hole, enabling a seal between either the outlet of the main body or the second face of a second adjustment plate, and the outlet hole extending from the first face to the second face by way of a fluid connection through the adjustment plate.
DISPENSER AND NOZZLE FOR DISCHARGING MIXTURE OF GAS AND PASTE MATERIAL AND MECHANICAL FOAMING DEVICE
A dispenser used for discharging a mixture of gas and a paste material includes: a nozzle part provided in a tip end part of a body and having a tip end opening through which the mixture is discharged; a flow path extending from a mixture introduction part to the tip end opening through a hollow space of the nozzle part; a needle part movable in the flow path of the nozzle part to open and close the flow path; a driving part that drives the needle part; and a stopper part that limits an operation range of the needle part. The nozzle part has a tapered section in which an inside diameter of the flow path of the nozzle part decreases toward the tip end opening. Also provided is a stopper position adjusting part that adjusts a stop position defined by the stopper part.
METHOD OF DESIGNING AND MANUFACTURING A DISTRIBUTOR BAR FOR APPLYING A VISCOUS FOAMABLE LIQUID MIXTURE ONTO A LAMINATOR
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.
Apparatus for supplying multiple foam machines with foam precursors
Apparatus for supplying multiple foam machines with foam precursor chemicals. The apparatus comprises first and second totes having a top opening and a bottom drain and containing first and second foam precursor chemicals, first and second supply lines connected to the bottom drains of the first and second totes and in fluid communication with first and second sets of batcher stands, and first and second sets of batcher pumps each of which is positioned in a respective one of the first and second sets of batcher stands. Each batcher pump is adapted to be in fluid communication with a respective one of the foam machines.
Device for applying a foaming reaction mixture
The invention relates to a device (100) for applying a foaming reaction mixture (600) onto a top layer (500), in particular for producing a composite element, comprising at least one casting rake (200, 260) with a tubular hollow body (210), said hollow body (210) extending along a central axis (250) and having at least two outlet openings (220) for discharging the foaming reaction mixture (600). The casting rake (200, 260) and the top layer (500) can be moved relative to each other along a longitudinal axis (510). According to the invention, the central axis (250) of the at least one casting rake (200, 260) and the longitudinal axis (510) of the movement form an angle (400, 410) of <=80 DEG relative to each other.
Device for applying a foaming reaction mixture
The invention relates to a device (100) for applying a foaming reaction mixture (600) onto a top layer (500), in particular for producing a composite element, comprising at least two casting rakes (200, 260), each of which comprises a tubular hollow body (210), said hollow body (210) extending along a central axis (250) and having at least two outlet openings (220) for discharging the foaming reaction mixture (600). The casting rakes (200, 260) and the top layer (500) can be moved relative to one another in a longitudinal axis (510), and the casting rakes (200, 260) are arranged on a receiving element (700). According to the invention, each arrangement of the casting rakes (200, 260) on the receiving element (700) has a joint (805), by means of which the casting rakes (200, 260) are movably arranged on the receiving element (700) and can be oriented at an angle (400, 410) of <=80 DEG relative to the longitudinal axis (510) of the movement.
Process and tool for continuous production of fiber-reinforced foams
The present invention relates to a tool (W) having at least one first inlet opening (E1) and at least one second inlet opening (E2), and also at least one first outlet opening (A1), at least one second outlet opening (A2) and at least one third outlet opening (A3), wherein the second outlet opening (A2) and the third outlet opening (A3) alternate with the first outlet opening (A1). The present invention further relates to a process for producing a fiber/foam composite by extruding through the tool (W) and to the use of the tool (W) for production of a fiber/foam composite by extrusion.
METHOD AND DEVICE FOR PRODUCING FOAM COMPOSITE ELEMENTS
A distributor bar for applying a liquid reaction mixture to a cover layer, comprising a distribution channel and multiple exit openings, the geometry of the exit openings in the distributor bar being chosen such that the discharged quantity at at least one end of the distributor tube is higher than in the center of the distributor bar. An application device containing the latter and a method for producing foam composite elements using this distributor bar are also provided.
A FLEXIBLE FILM FLUID-DISPENSING LINER MEMBER
A multilayer flexible film fluid-dispensing liner member useful for making a dispensing device, the multilayer flexible film fluid-dispensing liner member including: (a) at least a first film substrate layer; and (b) at least a second film substrate layer; wherein at least a portion of the first film substrate layer is bonded to the second film substrate layer forming the multilayer flexible film member; and (c) at least one duct having at least one inlet and a plurality of outlets, the at least one duct being disposed between the first and second substrate layers for forming a path for a fluid to pass from the at least one inlet of the duct to the plurality of outlets of the duct; wherein the first and second substrate layers of the multilayer flexible film fluid-dispensing liner member are constructed of a material that is flexible; and wherein the multilayer flexible film fluid-dispensing liner member has a flexibility property of from 3.6e Nm to 2 Nm; and a process of manufacturing the multilayer flexible film member.