B29C43/22

Optical sheet forming device and optical sheet forming method

An extruding unit, a forming roll unit and a thick portion forming mechanism are provided. The extruding unit has an ejecting slit which ejects sheet-shaped molten resin. The ejecting slit includes a standard gap portion and an enlarged gap portion. The standard gap portion is formed as a gap having a constant size. The enlarged gap portion is formed as a gap larger than the standard gap portion in a position corresponding to a thick portion. The thick portion forming mechanism forms one or several thick portions which are thicker than other portion, in the sheet-shaped molten resin continuously in the extrusion direction.

Molding apparatus and manufacturing method for molded surface fastener

Provided is a molding apparatus used for manufacturing a molded surface fastener wherein a die wheel driving rotationally has a concentric double cylinder structure provided with an outer side cylindrical body that has provided therethrough a plurality of penetrating holes, and an inner side cylindrical body that has formed, in the outer peripheral surface thereof, a plurality of grooved portions, the grooved portions located in the inner side cylindrical body include a use grooved portion that intersects with the penetrating hole of the outer side cylindrical body and a non-use grooved portion that is covered by the inner peripheral surface of the outer side cylindrical body. By using this molding apparatus obtained is a molded surface fastener in which a plurality of types of engaging elements having different shapes in a plan view are arranged cyclically in a reference direction.

Extrusion grade perlite reinforced polypropylene polymer

The invention disclosed herein is an automotive acoustic panel including a porous sound-absorption material made from a polymer and an expanded perlite. One or more silane compounds may be coupled or coated onto the expanded perlite while a coupling agent and a chemical foaming agent may additionally be added to the automotive acoustic panel.

SYSTEM AND METHOD FOR MANUFACTURING PANELS FOR USE IN WIND TURBINE ROTOR BLADE COMPONENTS
20220314504 · 2022-10-06 ·

A system for manufacturing a panel includes a forming assembly having opposing press plates and at least one platen assembly arranged between the opposing press plates. The platen assembly includes first and second platens connected together via at least one elastic deformable member. Further, the forming assembly is operable in a heating mode and a cooling mode. Moreover, the first platen is maintained at a predetermined temperature range during each of the heating and cooling modes. During the heating mode, the elastic deformable member(s) is compressed such that the first and second platens contact each other. As such, one or more layers of material to be consolidated are held by the forming assembly as the forming assembly applies heat and pressure to the layer(s), thereby consolidating the panel.

Conveying and cooling apparatus for a resin composition and conveying and cooling method for a resin composition

A cooling apparatus includes a conveying means which conveys a resin composition formed into a sheet shape along a direction parallel to a surface of the sheet-shaped resin composition and a cooling means which cools the resin composition being conveyed by the conveying means. A temperature of the resin composition just before being cooled by the cooling means is in the range of 40 to 60° C. and the cooling means has a cooling ability to cool the resin composition such that a cooling rate of the resin composition is in the range of 0.2 to 5° C./min. Further, the cooling means includes a fan section having at least one outlet port which discharges cooling air of which temperature is in the range of −40 to 0° C. to the resin composition.

Conveying and cooling apparatus for a resin composition and conveying and cooling method for a resin composition

A cooling apparatus includes a conveying means which conveys a resin composition formed into a sheet shape along a direction parallel to a surface of the sheet-shaped resin composition and a cooling means which cools the resin composition being conveyed by the conveying means. A temperature of the resin composition just before being cooled by the cooling means is in the range of 40 to 60° C. and the cooling means has a cooling ability to cool the resin composition such that a cooling rate of the resin composition is in the range of 0.2 to 5° C./min. Further, the cooling means includes a fan section having at least one outlet port which discharges cooling air of which temperature is in the range of −40 to 0° C. to the resin composition.

METHOD AND APPARATUS FOR PRODUCING A NANOSTRUCTURED OR MICROSTRUCTURED FOIL BY EXTRUSION COATING OR EXTRUSION CASTING

A method for extrusion coating or extrusion casting, a polymer sheet (4, 5) produced thereby, a roller (2) for use in extrusion coating or extrusion casting, and an apparatus comprising said roller (2), in which micro- and/or nanostructures provided on the surface of the roller (2) are transferred to the polymer sheet (4, 5), and which is applicable to the extrusion coating or extrusion casting of all types of thermoplastic polymer.

SYSTEM AND METHOD OF MAKING A MESH CUSHION

A method of making a mesh cushion. The method includes extruding a material through a plurality of filament forming openings in at least one die plate to form a plurality of filaments. The filaments may be at least partially submerged into a fluid to cool and harden the filaments into the mesh cushion.

SYSTEM AND METHOD OF MAKING A MESH CUSHION

A method of making a mesh cushion. The method includes extruding a material through a plurality of filament forming openings in at least one die plate to form a plurality of filaments. The filaments may be at least partially submerged into a fluid to cool and harden the filaments into the mesh cushion.

MULTI-PIECE REMOVABLE TOOLING INSERT
20170334096 · 2017-11-23 ·

An improved device, system, and method to produce a molded component with an undercut includes an insert comprised of a plurality of separate pieces individually removable from the molded component. The pieces are arranged and functionally interlocked in an assembled configuration. Removal of a post member or piece from the insert creates a cavity within the same. Thereafter, one or more of the pieces is slidable, movable, or collapsible into the cavity and subsequently removed from the molded component. The remaining pieces are movable, often sequentially and iteratively, into the cavity and subsequently removed. Each of the pieces can have a different geometry. A plurality of the inserts can arranged into an array and connected to a bottom tool structure. The array of inserts can be configured to produce a molded component have a plurality of cells arranged in a matrix, such as a airflow diverter duct.