Patent classifications
B29C2035/1658
HIGH PERFORMANCE COOLING ELEMENT
The present invention relates to an external cooling system for a molten film tube produced by a blown film tubular extrusion process, comprised of a divergent cooling element with a divergent cooling interface containing a cooling gas deflector spaced adjacent to the molten film tube and providing an expelled cooling gas (i) in a path opposing the flow of the molten film tube toward a first exit gap and (ii) in a path with the flow of the molten film tube toward a second exit gap. A minimum gap between the divergent cooling interface and the molten film tube occurs at the first exit gap and/or the second exit gap. Advantageously, the divergent cooling interface is provided with one or more compound angles to maximize stability and cooling efficiency. Additionally, multiple cooling elements can preferably be arranged in a stackable configuration to achieve higher throughput rates. Operation is characterized by improved film holding forces without the presence of high noise levels or detrimental vibration, flutter, and drag. Additionally, employing simplified single air delivery channels, and a stackable design, significantly reduces complexity and manufacturing costs.
THREE-DIMENSIONAL OBJECT GENERATION
An apparatus and method for generating a three-dimensional object. The apparatus includes a build material area, at least one agent distributor with a fluid reservoir to store fluid agent and at least one fluid ejection die to selectively eject fluid agent in the build material area. A cooling system to remove heat from the at least one fluid ejection die has a heat sink. The at least one fluid ejection die is in thermal contact with the heat sink via the fluid agent of the fluid reservoir.
Controlled pressure enclosure
The present invention relates to an external cooling system for a molten film tube produced by a blown film tubular extrusion process, comprised of one or more enclosures with one or more respective cavities that directly receive a portion of cooling gas emanating from one or more associated cooling elements. Each enclosure includes a port containing a variable exhaust device and optional flow buffer, acting to maintain a pressure differential between the cavity and an adjacent inside volume of the molten film tube, adjustable to optimize molten film tube stability cooling element efficiency and spaced apart dimension between cooling elements. Significant increases in production speeds are achieved with improved film quality over an increased range of tubular film sizes, down to a minimum size which occurs when operating at zero internal to molten film tube pressure.
High performance cooling element
The present invention relates to an external cooling system for a molten film tube produced by a blown film tubular extrusion process, comprised of a divergent cooling element with a divergent cooling interface containing a cooling gas deflector spaced adjacent to the molten film tube and providing an expelled cooling gas (i) in a path opposing the flow of the molten film tube toward a first exit gap and (ii) in a path with the flow of the molten film tube toward a second exit gap. A minimum gap between the divergent cooling interface and the molten film tube occurs at the first exit gap and/or the second exit gap. Advantageously, the divergent cooling interface is provided with one or more compound angles to maximize stability and cooling efficiency. Additionally, multiple cooling elements can preferably be arranged in a stackable configuration to achieve higher throughput rates. Operation is characterized by improved film holding forces without the presence of high noise levels or detrimental vibration, flutter, and drag. Additionally, employing simplified single air delivery channels, and a stackable design, significantly reduces complexity and manufacturing costs.
PROCESS FOR FORMING AND RELATED STATION FOR FORMING
Process and station (99) for forming a thermoplastic material, the process comprising: making a semi-finished product (10) in the thermoplastic material, the semi-finished product (10) being air permeable; closing a mould (90) with the semifinished product (10) interposed between the conformation surfaces (3, 4) for compressing the semifinished product (10) between the conformation surfaces (3, 4); heating the mould (90) for heating the semi-finished product (10), subsequentlyopening the mould (90); with the semi-finished product (10) coupled to a second half-mould (2) of the mould (90), contacting a free surface of the semi-finished product (10) with a coupling surface (80) of a catching device (71); generating an air flow (200) which passes through the coupling surface (80) in a distributed way, the air flow being directed from the semi-finished product (10) to the coupling surface (80), for constraining the semi-finished product (10) to the catching device (71); while keeping the airflow (200), removing the semi-finished product (10) from the mould (90) by movement of the catching device (71); interrupting the air flow (200) for releasing the semi-finished product (10) from the catching device (71) and obtaining a finished article.
MOLDING PROCESS FOR INSULATION PRODUCT
A molding process includes the operation of placing insulation material comprising fibers and binder on the fibers in a mold cavity. The molding process further includes the operation of transferring heat to the insulation material to cause the binder to cure.
Fiber application head with a specific application roll
The invention relates to a fiber application head for manufacturing composite material pars and to a corresponding manufacturing method, said head including: an application roll for applying a band formed of one or more fibers onto an application surface; a main guide system for guiding at least one fiber towards said application roll; a heating, system capable of emitting thermal radiation towards the band just before application by the application roll; a cooling system capable of cooling, the application roil from the outside, such as a gas flow; and a drive system capable of rotating the application roll when the roll is not in contact with the application surface.
TOOL TEMPERATURE CONTROL
A tool (100) comprises a plurality of layers (102, 104, 106) which are arranged to provide a thermally agile tool face (110) and to protect control circuitry and delicate components (150) from excessive temperatures.
CONTROLLED PRESSURE ENCLOSURE
The present invention relates to an external cooling system for a molten film tube produced by a blown film tubular extrusion process, comprised of one or more enclosures with one or more respective cavities that directly receive a portion of cooling gas emanating from one or more associated cooling elements. Each enclosure includes a port containing a variable exhaust device and optional flow buffer, acting to maintain a pressure differential between the cavity and an adjacent inside volume of the molten film tube, adjustable to optimize molten film tube stability cooling element efficiency and spaced apart dimension between cooling elements. Significant increases in production speeds are achieved with improved film quality over an increased range of tubular film sizes, down to a minimum size which occurs when operating at zero internal to molten film tube pressure.
INJECTION MOLDING MACHINE FOR MANUFACTURING SPIRAL BICOLOR LED HOSE LIGHT
An injection molding machine for manufacturing the spiral bicolor LED hose light just needs a single process and equipment to greatly increase the production efficiency and save the equipment investment costs. The input channel terminal of the second flow channel connected with a first horizontal channel is gradually smaller, and the transportation end terminal of the first horizontal channel connected with a second horizontal channel of larger diameter is gradually larger. The transportation end terminal of the second extruder is connected with the input terminal of the third flow channels. The light strip input channel inputs the LED light strip to pass through the first and second flow channel, which the transparent molten plastic squeezed by the first extruder wraps and covers the LED light strip and the molten plastic with the other color squeezed by the second extruder is spirally wounded on the surface of the transparent molten plastic.