Abstract: An injection molding machine includes a connection member that connects a nozzle touch mechanism and a fixed platen. The connection member has: an arm part that rises upward from a support frame part on a side of the fixed platen; and a platen connection part that is provided on an upper section of the arm part and serves as a second connection section connected to the fixed platen. The platen connection part has: a connection pin that is fixed to the arm part and extends in a left-right direction coinciding with the width direction of a machine frame; and a rotary member that is fixed to the fixed platen and can rotate around the connection pin, wherein the connection pin is disposed so as to pass through the center axis of a nozzle and include a plane parallel to a mount surface of the machine frame.

Abstract: Examples of an imaging system for use with a head mounted display (HMD) are disclosed. The imaging system can include a forward-facing imaging camera and a surface of a display of the HMD can include an off-axis diffractive optical element (DOE) or hot mirror configured to reflect light to the imaging camera. The DOE or hot mirror can be segmented, for example, with different segments having different angles or different optical power. The imaging system can be used for eye tracking, biometric identification, multiscopic reconstruction of the three-dimensional shape of the eye, etc. Methods for manufacturing angularly segmented optical elements are also provided. The methods can include injection molding.

Abstract: In a first aspect, the invention relates to an apparatus for supporting a component of a tableting machine, the apparatus comprising as components an upper part, an intermediate element and a lower part. In further aspects, the invention relates to a tableting machine comprising a described apparatus and a method or use of the apparatus for adjusting a position of a component of a tableting machine. By means of the proposed apparatus, in particular the feeder support of a tableting machine and thus preferably the position of the filling device above the die table can be easily, quickly and reproducibly adjusted, preferably during machine set-up, but also during operation of the rotary tableting machine, in such a way that material loss is minimized.

Abstract: A 3D printing system for 3D printing of concrete buildings or other concrete structures. A set of cable support masts are temporarily installed at corners of a two-dimensional footprint area of any given level of a multi-level building to enable 3D printing of wall sections or other structural components of that given level of the building using a cable-guided concrete dispensing nozzle suspended from said cable support masts by a set of movable, motor-driven positioning cables. The building is built in stage-wise fashion, level-by-level, with the set of support masts being moved up level-by-level as the levels of the building are completed. The construction of the building is not dependent on a set of ground-level towers distributed around the ground-level footprint of the building, thus notably reducing equipment requirements for the 3D printed construction of tall, multi-storey buildings.

Abstract: Methods and processes are provided by which inhibited-crystallization polymers may be employed as feedstock materials in thermoplastic extrusion-type additive manufacturing systems. Counteracting the tendency of such polymers to uncontrolledly settle into an amorphous state upon cooling under typically used conditions, techniques are disclosed for controlling process temperatures, exposure times and feed rates to produce parts with uniform crystallinity, high mechanical strength and efficient throughput.

Abstract: Systems and methods for optical based monitoring of additive manufacturing processes are provided. In one example a method includes obtaining optical data representing a layer of a structure being manufactured using an additive manufacturing process, comparing the optical data with a standard optical representation associated with the structure, determining one or more nonconformance conditions between the optical data representing the layer and the standard optical representation, and implementing a control action based at least in part on the one or more nonconformance conditions.

Abstract: The present invention discloses a 3D weaving and printing integrated structure construction equipment including: a printing matrix material preparation device, processing the printing matrix raw materials and then delivering them to a printing matrix extrusion device; a printing matrix extrusion device, having the functions of promoting extrusion and lamination molding, and printing a matrix; a wire pushing and spatial anchoring device, using a nail-shooting to position and tow a rope/wire/cable for continuously weaving layer by layer stacking along the vertical direction; an electromagnetic guided shuttle dropping device, weaving the rope wire/cable material along the longitude and latitude directions; a locking device, positioning and fixing the rope/wire/cable woven along the longitude and latitude directions; a tensioning traction device, performing spatial multi-directional prestress tensioning on the rope/wire/cable woven along the longitude and latitude directions.

Abstract: A three-dimensional shaping device includes an ejection unit configured to eject a shaping material from a nozzle; a stage; a drive unit configured to change a relative position between the ejection unit and the stage; a cleaning mechanism provided with a brush and a blade; and a control unit. The control unit executes a cleaning operation of bringing at least one of the brush and the blade into contact with the nozzle by causing the nozzle to reciprocate in a manner in which the nozzle crosses the cleaning mechanism for a plurality of times in a cleaning processing. The control unit causes the nozzle to reciprocate such that the nozzle comes into contact with the brush or the blade at different positions in the cleaning operation. The control unit records at least one of material information on a type of the plasticizing material, a cumulative ejection amount of the shaping material ejected from the nozzle, and a use time of the nozzle in association with the nozzle.

Abstract: The present invention relates to a 3D printer for construction for printing and forming various structures, in which a spray pipe follows a nozzle for discharging concrete or mortar, and sprays a liquid material onto the surface of a printed object, thereby enabling the liquid material to be applied on the surface of the printed object. Through the present invention, the printing of the printed object and the spraying of the liquid material onto the surface of the printed object may be carried out simultaneously by means of the 3D printer for construction, and thus a rapid and uniform coating treatment of the printed object is possible, and an adequate wet state of the tissue of the printed object may be maintained.

Abstract: Systems and methods are provided for making aggregate from comingled waste plastics. For example, there is provided a method of making a preconditioned absorptive resin aggregate, the method including: obtaining a supply of granulated mixed plastic waste treated with a preconditioning agent that comprises at least one of calcium oxide and calcium hydroxide; mixing the supply of granulated mixed plastic waste treated with the calcium oxide preconditioning agent with one or more additives to form a plastic waste mixture, the one or more additives comprising pozzolans; hot extruding the plastic waste mixture to form an extruded product comprising waste plastic material; cooling the extruded product; and processing the extruded product to form an aggregate. Products incorporating such aggregates, such as, for example, lightweight construction blocks, are also provided. Also provided are methods of forming a waste plastics feedstock.

Abstract: An apparatus to batch or continuously form solid polymer particles, the apparatus comprising the following components: A) at least one pastillation unit comprising a pastillation head, said unit used to form discrete molten polymer particles from a polymer melt; B) a moving belt to receive and transfer the discrete molten polymer particles from the pastillation head; C) a means to transfer water onto the moving belt, such that the water comes into contact with the discrete molten polymer particles on the moving belt to form the solid polymer particles; and wherein the water of component C is sprayed onto the discrete molten polymer particles, such that the ratio of “the rate of water spray” to “the discharge rate” is ?3.0; and wherein the belt residence time is ?50 seconds.

Abstract: An additive manufacturing device may include a laser source configured to generate a laser beam, a build material holder configured to hold an additive build material, a controllable deflector having a first scan rate, an AOD having a second scan rate faster than the first scan rate, and a controller. The controller may be configured to control the controllable deflector and the AOD to scan the laser beam relative to the build material holder to additively manufacture a workpiece in successive layers from the additive build material.

Abstract: A method of producing a ceramic manufactured object including (i) a step of leveling a ceramic powder to form a powder layer, (ii) a step of irradiating the powder layer with a laser beam based on three-dimensional data to crystallize an irradiated site, and (iii) performing the steps (i) and (ii) in repetition, wherein in the step (ii), a surface of the powder layer is irradiated with the laser beam in an unfocused state.

Abstract: In a vat polymerization printer, a beam scanner scans a light beam across a mask and into a tank containing a photo-curable resin. The mask has pixels configurable to be individually transparent or opaque to portions of the light beam, which has a diameter greater than a cross-sectional dimension of the pixels of the mask. During an exposure time duration, a first subset of the pixels are controlled to be transparent at locations corresponding to the cross section of a three-dimensional object to be printed, while a second subset of the pixels are controlled to be opaque at locations not corresponding to the cross section of the three-dimensional object. The beam scanner is controlled to scan the light beam across the mask such that the light beam is always incident on at least one of the pixels of the mask that are controlled to be transparent.

Abstract: A three-dimensional shaping device shapes a three-dimensional article by irradiating a powder material with an electron beam and melting the powder material. The three-dimensional shaping device includes an electron beam emitting unit emitting the electron beam, melting the powder material in order to shape the article, and performing preliminary heating of the powder material by irradiating the powder material with the electron beam before the article is shaped. The electron beam emitting unit moves an irradiation position of the electron beam in a spiral pattern when the powder material is irradiated with the electron beam for preliminary heating.

Abstract: The method for producing non-core beta silicon carbide fibers includes four steps. The first step is spinning of multifilament polymeric fiber by melt-extrusion of polycarbosilane. The second step is thermooxidative cross-linking for which the produced spun polymeric fibers are cured in an oxidation furnace at a temperature of 175-250 degrees C. at a heating rate of 3-10 degrees C./h until their weight is increased by 6-15%. The third step is carbonization of the produced cured polymeric fibers with the conversion into the ceramic phase. The fourth step is finishing of the produced beta silicon carbide fiber. The effect of the invention is producing non-core silicon carbide fibers, improving their strength performance, improving resistance to high temperatures and their high creep resistance, stable fiber properties, optimal average diameter of fibers, absence of foreign impurities in the fiber composition.

Abstract: A system is disclosed for use in additively manufacturing an object. The system may have a support and a first module operatively mounted to an end of the support and configured to discharge a material during motion of the support to form an object. The system may also have a second module configured to sever the material, at least a third module configured to at least one of compact or cure the material, and an actuator configured to cause movement of the second and the at least a third modules relative to the first module.

Abstract: A method for encapsulating electronic devices comprises, successively, placing a profiled strip on a conveyor belt, the profiled strip comprising a base, at least one flap protruding with respect to said base; positioning an electronic device, in the longitudinal direction, on the receiving zone of the profiled strip; and plastically deforming the flap by application of an application force in a predetermined direction.

Abstract: A three-dimensional (3D) printing system includes a resin vessel containing photocurable resin, an imaging system, a build plate with a plate upper surface, a vertical positioner, a volume compensator (VC), and a controller. The controller is configured to: (a) operate the VC to maintain a resin upper surface proximate to a build plane, (b) operate the imaging system and the vertical positioner to generate a plurality of base layers upon the plate upper surface, (c) receive a first signal responsive to vertical motion of the resin upper surface, (d) analyze the first signal to determine a metric that is related to an extent of immersion of the plate upper surface below the resin upper surface during formation of the base layers, and (e) operate the imaging system and the vertical positioner to begin generation of the 3D article after the metric has reached a predefined threshold.

Abstract: According to examples, an apparatus may include an agent delivery device to deliver a coalescing agent to selected locations of a build material layer and a plurality of microwave energy emitters, each of the microwave energy emitters including a tip to generate a focused microwave energy field onto a respective area near the tip, in which the tip is to be positioned to place a portion of the build material layer within the focused microwave energy field. The apparatus may also include a controller that may control the microwave energy emitters to direct microwave energy onto the build material layer.