Patent classifications
B29C48/0022
MEASUREMENT DEVICE AND METHOD FOR DETECTING LOCAL THICKENINGS IN A FILM WEB
Provided is a measurement device (10) for detecting local thickenings in a film web (20), more particularly an extrusion and/or coextrusion film, having a first roll (14) for rolling on the film web (20) that can be moved along, a second roll (18) that can be supported indirectly above the film web (20) on the first roll (14) for rolling on the film web (20) that can be moved along, wherein the second roll (18) is resiliently guided in the thickness direction of the film web (20) that can be moved along, more particularly in the vertical direction, and at least one distance sensor (24) that is stationary with respect to the first roll (14) and/or to the film web (20) that can be moved along, for detecting a distance of the second roll (18). The second roll (18), which can be displaced from a local thickening of the film web (20) in the thickness direction of the film web (20), makes it possible to quickly and easily detect local thickenings in a film web (20).
PROCESS FOR PRODUCING THERMOPLASTIC SHEETS
The present disclosure relates to the process of producing thermoplastic, smooth and/or corrugated tile type board, based on new polymers or polymeric waste, pure and or composed of various plastics, whether or not chemically compatible, with or without fillers, natural/industrial/mineral/animal, individually and/or combined up to 80% by lamination process, in single or multilayer form, using various melting process mechanisms; and also allowing the interlayer and/or superficial introduction of bodies, rigid or flexible, for the purpose of structural reinforcement and or surface finishing, characterized by using an extruder that delivers a large volume of plastic mass to the lamination line, where the already laminated plastic mass passes to the molecular fixing line, through cool pressing plates, moving into to the cutting line, through the side cutting and dividing saw, being the product sent to completion section, through the square cutting and deposition on distribution table.
DIE, METHOD OF MANUFACTURING DIE, EXTRUDER AND METHOD OF MANUFACTURING PELLET
A performance of a die is improved. An injection hole IH, a nozzle NZa and a nozzle NZb are formed in a center member DIa of a die DI to extend from an extrusion surface ES to an injection surface IS. A heat source HT and a plurality of heat insulating layers HI1 are arranged inside the center member DIa. One of the plurality of heat insulating layers HI1 is adjacent to the nozzle Nzb and is closer to the extrusion surface ES than the heat source HT. The other of the plurality of heat insulating layers HI1 extends in a direction from the extrusion surface ES toward the injection surface IS at a position being farther from the nozzle NZb than the heat source HT.
Apparatus for producing pellet and method for producing pellet
The present invention aims to provide a method for producing a pellet and an apparatus for producing a pellet, including a conveyor belt that conveys a strand formed by melting a composition containing a thermoplastic resin and an additive and then ejecting the molten composition from a feeder, a liquid-spraying device spraying a liquid toward the strand conveyed, a gas-blowing device blowing a gas toward the strand conveyed, a strand cutter cutting the strand conveyed into a pellet, the liquid-spraying device, the gas-blowing device, and the strand cutter being disposed in this order in the conveying direction of the strand, a measurement device measuring a surface temperature of the strand, the measurement device being disposed upstream of the strand cutter in the conveying direction, and an adjustment mechanism adjusting driving of at least one of the liquid-spraying device and the gas-blowing device in accordance with the surface temperature measured.
System for producing a fully impregnated thermoplastic prepreg
A system for manufacturing a thermoplastic prepreg includes a double belt mechanism that is configured to compress a fiber mat, web, or mesh that is passed through the double belt mechanism, a resin applicator that is configured to apply monomers or oligomers to the fiber mat, web, or mesh, and a curing oven that is configured to effect polymerization of the monomers or oligomers and thereby form the thermoplastic polymer as the fiber mat, web, or mesh is moved through the curing oven. The double belt mechanism compresses the fiber mat, web, or mesh and the applied monomers or oligomers as the fiber mat, web, or mesh is passed through the curing oven so that the monomers or oligomers fully saturate the fiber mat, web, or mesh. Upon polymerization of the monomers or oligomers, the fiber mat, web, or mesh is fully impregnated with the thermoplastic polymer.
HEAT-SHRINKABLE POLYESTER-BASED FILM ROLL
The present invention aims to provide a heat-shrinkable polyester film roll having decreased generation of wrinkles or longitudinal shrink mark. The present invention provides a film roll of a heat shrinkable polyester film, wherein a polyester of the polyester film contains recycled raw material from a PET bottle and an acid component of the polyester comprises isophthalic acid, and the film roll satisfies a specific average value of a shrinkage, specific isophthalic acid ratio, and specific thickness unevenness.
System and method for cutting material in continuous fiber reinforced additive manufacturing
Methods, apparatus, and systems for cutting material used in fused deposition modeling systems are provided, which comprise a ribbon including one or more perforations. Material is passed through at least one perforation and movement of the ribbon cuts the material. A further embodiment comprises a disk including one or more blade structures, each forming at least one cavity. Material is passed through at least one cavity and a rotational movement of the disk cuts the material. A further embodiment comprises a slider-crank mechanism including a slider coupled to a set of parallel rails of a guide shaft. The slider moves along a length of the rails to cut the material. Yet another embodiment comprises one or more rotatable blade structures coupled to at least one rod. The rotation of the blade structures causes the blade structures to intersect and cut extruded material during each rotation.
Blown Foil System and Method for Producing a Foil Web
The invention describes a blown foil system for producing a foil web with at least one extruder for providing a melt-like plastic, a blowing head with a circumferential die gap, with which the melt-like plastic can be transformed into a foil bubble emerging from the die gap, with at least one liquid cooling device for cooling the foil bubble, wherein a liquid can be supplied to the outer periphery and/or to the inner periphery of the foil bubble by means of the liquid cooling device, with a flat laying device by means of which the foil bubble can be formed into a double-layer foil web, wherein the two layers are in contact at least partially and in particular substantially over the full surface, and with at least one stretch unit for stretching the foil web in the longitudinal direction.
ELECTRICAL CONNECTORS WITH THIN INTERIOR WALLS
An electrical connector with thin interior walls is made by extruding a polymer or polymer composite into a sheet of approximately 0.25 mm to 0.5 mm thickness. The sheet is then calendered to a thickness of about 0.05 mm to 0.3 mm. The calendered sheet is cut into notched sections. The notched sections are assembled and placed into an injection molded housing of a connector. The sections are secured in place by using an adhesive, force fit, snap fit, or welding process to form the thin interior walls of the connector.
Products having a wood grain appearance, and methods and structures for use in forming same
Structures for use in forming products having a wood grain appearance include, for example, a plurality of extruded layers having different colors/shades spirally wound about a longitudinal axis to an outer surface to define the structure. The plurality of extruded layers include varying thicknesses along a spiral length of the plurality of layers and/or portions of the plurality of extruded layers encircling the longitudinal axis include portions disposed at different distances from the longitudinal axis. In some embodiments, the spirally winding includes forming a cylindrical structure, and pressing the cylindrical structure into a cuboid structure having a square or rectangular cross-section across the longitudinal axis and at least a portion of the plurality of extruded layers defining a square or rectangle pattern across the longitudinal axis. Longitudinal portions may be cut from the structures to form the products having a wood grain appearance.