B29C33/0083

Three-dimensional printing methods for reducing bubbles by de-gassing through build plate

A method of forming a three-dimensional object includes providing a carrier and an optically transparent member having a build surface. The carrier and the build surface define a build region therebetween. The method further includes filling said build region with a polymerizable liquid; continuously or intermittently irradiating said build region with light through said optically transparent member to form a solid polymer from said polymerizable liquid; applying a reduced pressure and/or polymer inhibitor-enriched gas to the polymerizable liquid through the optically transparent member to thereby reduce a gas content of the polymerizable liquid; and continuously or intermittently advancing (e.g., sequentially or concurrently with said irradiating step) said carrier away from said build surface to form said three-dimensional object from said solid polymer.

Manufacturing method of liquid ejection head

A manufacturing method of a liquid ejection head, which includes a step of preparing a substrate including a first layer, a step of forming a flow path mold for forming the flow path and a member located outside the mold with a gap between the mold and the member from the first layer, a step of providing a second layer so that the second layer fills the gap and covers the mold and the member located outside the mold with the gap between them, a step of forming an ejection orifice forming member for forming an ejection orifice from the second layer, a step of removing the member located outside the mold with the gap between them, and a step of forming a wall member located outside the ejection orifice forming member with at least a partial gap between the ejection orifice forming member and the wall member.

System and method for rotational moulding
20220203579 · 2022-06-30 · ·

The present invention is a system for producing an object from a material that contains a hardenable base material using rotational moulding, wherein the system is comprised of a robotic arm and a die that can be attached to the robotic arm. The die contains a die cavity defined by a die wall, wherein the die is configured for receiving the material in the die cavity. The current invention also involves a method for production of an object of a material containing a hardenable base material using rotational moulding.

System and method for rotational moulding
11738484 · 2023-08-29 · ·

The present invention is a system for producing an object from a material that contains a hardenable base material using rotational moulding, wherein the system is comprised of a robotic arm and a die that can be attached to the robotic arm. The die contains a die cavity defined by a die wall, wherein the die is configured for receiving the material in the die cavity. The current invention also involves a method for production of an object of a material containing a hardenable base material using rotational moulding.

SYSTEM FOR THE PRODUCTION OF AT LEAST ONE PARTICLE FOAM MOLDING

A system for producing at least one particle foam molding includes at least one automatic molding machine, which comprises at least one mold device. The automatic molding machine(s) comprises at least one interface for coupling a functional module which can be functionally assigned to the automatic molding machine(s) in order to form an individually configured automatic molding machine functional module arrangement. The system also includes at least one functional module which can be individually assigned to the automatic molding machine(s) to form an individually configured automatic molding machine functional module arrangement, wherein the functional module(s) comprises at least one interface for coupling to the automatic molding machine(s). Additionally, the system includes a central data processing device(s) which, on the basis of the configuration of the individually configured functional module arrangement, is configured to generate operating information which regulates and/or controls the operation of at least one functional module.

INJECTION MOLDING SYSTEM WITH CONVEYOR DEVICES TO INSERT OR EJECT MOLDS
20220161473 · 2022-05-26 ·

An injection molding system includes a conveyor apparatus that moves a mold, and an injection molding apparatus that performs, using an injection cylinder and a screw, injection molding with the mold, wherein the improvement of the injection molding system includes at least one structure located in proximity to at least a part of the conveyor apparatus, wherein the at least one structure includes at least one element that is moveable, and wherein, when the screw is removed from the injection cylinder, the at least one element is in a position to prevent the at least one element from contacting the screw.

Cavity Mold and Cavity Mold System
20210362376 · 2021-11-25 ·

A cavity mold comprises two or more sub-molds; and one or more gasket disposed between two adjacent sub-molds; wherein the gasket seals heating and cooling mediums when the cavity mold is assembled; wherein each of the two or more sub-molds comprises an outer casing; an inner casing on which a molded item is formed, wherein the cavity mold is assembled, a cavity is formed in the space between the outer casing and the inner casing; at least one heating/cooling mediums input pipe that is fluidly coupled with heating and cooling medium sources and the cavity, wherein heating and cooling mediums are pumped or compressed via the at least one heating/cooling mediums input pipe into the cavity, thereby the heating and cooling mediums pass through the cavity of the cavity mold; and at least one heating/cooling mediums return pipe that is fluidly coupled with the heating and cooling medium sources and the cavity, wherein the heating and cooling mediums are pumped via the at least one heating/cooling mediums return pipe out of the cavity; and wherein at least one of the two or more sub-molds further comprises a feed channel being through the outer casing and the inner casing; wherein the feed channel allows molding materials to be fed into the inside of the inner casing. A cavity mold system employs the cavity mold.

Three-dimensional printing with build plates having reduced pressure and/or channels for increased fluid flow

A method and an apparatus of forming a three-dimensional object, wherein the method includes providing a carrier and an optically transparent member having a build surface, said carrier and said build surface defining a build region therebetween; filling said build region with a polymerizable liquid, continuously or intermittently irradiating said build region with light through said optically transparent member to form a solid polymer from said polymerizable liquid, continuously or intermittently advancing (e.g., sequentially or concurrently with said irradiating step) said carrier away from said build surface to form said three-dimensional object from said solid polymer, said optically transparent member comprising a build plate for a three-dimensional printer comprising: an optically transparent first channel layer; an optically transparent, gas permeable second channel layer on the first channel layer; and a flexible, optically transparent, gas-permeable sheet having an upper and lower surface, the sheet upper surface comprising a build surface for forming a three-dimensional object, the sheet lower surface being positioned on the second channel layer.

Double-shaft rotating structure applicable to electric heating forming equipment
11007682 · 2021-05-18 ·

A double-shaft rotating structure applicable to electric heating forming equipment, comprising: a main shaft, a shell, a first auxiliary shaft, two second auxiliary shafts, a third auxiliary shaft, two first collector slip rings, a second collector slip ring, two fixed disks and a plurality of electric heating elements. The double-shaft rotating structure applicable to electric heating forming equipment may enable a mold on the forming equipment to achieve double-shaft continuous rotation; furthermore, the structure is relatively simple while covering a small floor area, energy-saving and environmentally-friendly, and relatively low-cost.

THREE-DIMENSIONAL PRINTING METHODS FOR REDUCING BUBBLES BY DE-GASSING THROUGH BUILD PLATE

A method of forming a three-dimensional object includes providing a carrier and an optically transparent member having a build surface. The carrier and the build surface define a build region therebetween. The method further includes filling said build region with a polymerizable liquid; continuously or intermittently irradiating said build region with light through said optically transparent member to form a solid polymer from said polymerizable liquid; applying a reduced pressure and/or polymer inhibitor-enriched gas to the polymerizable liquid through the optically transparent member to thereby reduce a gas content of the polymerizable liquid; and continuously or intermittently advancing (e.g., sequentially or concurrently with said irradiating step) said carrier away from said build surface to form said three-dimensional object from said solid polymer.