777results about "Manufacturing material handling" patented technology

A powder handling device is provided, along with apparatus and methods of its use. The powder handling device includes a mounting portion defining a plane and comprising a mounting interface; a fixture device configured to mount the mounting portion over an opening of a powder container at a mounting interface; and a powder suction unit attached to the mounting portion and passing through the plane. The powder suction unit is movable relative to the mounting portion with at least one degree of freedom. The powder handling device may be mounted onto an opening of a powder container.

Provided herein are devices and systems for depositing a material or manufacturing a product, such as a pharmaceutical dosage form, by additive manufacturing. Further provided are methods of using the devices and systems, as well as methods of manufacturing a product, such as a pharmaceutical dosage form, by additive manufacturing. In certain embodiments, the device includes a material supply system configured to melt a pressurized a material, a pressure sensor configured to detect a pressure of the material within the device, and a control switch comprising a sealing needle operable in an open position and closed position. The sealing needle extends through a feed channel containing the material and includes a taper end, wherein the tapered end of the sealing needle engages a tapered inner surface of a nozzle to inhibit flow of the material through the nozzle when the sealing needle is in the closed position.

The invention provides a circulating ink supply control method and a circulating ink supply control system, which are applied to a control unit in the circulating ink supply system. The method comprises the following steps: acquiring liquid level information detected by each liquid level sensor in an ink inlet unit and liquid level information detected by each liquid level sensor in an ink return unit in real time; according to the liquid level information detected by each sensor in the first sensor group, whether the circulating ink supply system is in a normal state is determined; if yes, the circulating pump or the air pump is controlled to conduct ink supply circulation according to the liquid level information detected by all the sensors in the second sensor set. The running speed of the circulating pump or the air pump is controlled through the liquid level information detected by all the liquid level sensors, it is guaranteed that the air pressure in the circulating ink supply system is stable, and therefore the ink supply amount of the spray head is stable, and the printing effect of a final model is guaranteed.

An additive manufacturing system includes an energy delivery device configured to deliver energy to a build surface of a component to form a melt pool in the build surface of the component, a powder delivery device configured to direct a powder stream toward the melt pool, at least one sensor configured to generate sensor data representative of at least one process characteristic, and a computing device. The computing device is configured to receive the sensor data from the at least one sensor, determine, based on the sensor data and a predictive model data, at least one powder control parameter configured to achieve a predetermined powder feed rate of the powder stream, and control, based on the at least one powder control parameter, the energy delivery device and the powder delivery device to deposit a plurality of layers.

The invention relates to the fields of materials science and mechanical engineering and concerns a method for defect detection in additively manufactured components using in-situ acoustic emission analysis, employing machine learning. The object of the invention is to provide a method for defect detection in additively manufactured components using acoustic emission analysis, enabling improved, reliable, fast, and reproducible defect detection of additively manufactured components using acoustic emission analysis.The problem is solved using a method for defect detection in additively manufactured components via in-situ acoustic emission analysis. This involves acquiring and transforming acoustic emission data, then using a machine learning model to identify and localize characteristic signal patterns from the acoustic emission data. Subsequently, these characteristic and localized signal patterns are extracted from the original acoustic emission data and fed into a machine learning model. Finally, the extracted acoustic emission data are classified using a machine classification model. The proposed method can be used, for example, in laser-based additive manufacturing of components.

The stock bin comprises a shell, a base, a draught fan and a heating piece, the base is contained in the shell and provided with a base area, the base comprises a supporting shaft used for supporting a material disc, the area below the plane penetrating through the axis of the supporting shaft and parallel to the bottom wall of the shell is the base area, and the material disc is placed in the base area; an airflow cavity is formed between the base and the bottom wall of the shell, the base is provided with a first air hole and a second air hole, and the first air hole and the second air hole are formed in the annular direction of the tray at intervals and communicate with the base area and the airflow cavity correspondingly; the draught fan and the heating piece are contained in the airflow cavity, the draught fan is arranged close to the first air hole, and an air outlet of the draught fan faces one side of the second air hole. According to the stock bin, the problem that the effect of drying the trays in an existing 3D printing feeding device is poor can be solved.

The utility model relates to the technical field of feeding devices, in particular to a quantitative feeding device for 3D printing light-cured resin for casting. According to the technical scheme, the feeding device comprises a feeding barrel, a material box, a conical head and an adjusting valve, the conical head is arranged at the lower end of the feeding barrel, the material box is arranged below the conical head, a feeding port is formed in the upper end of the material box, an ejector rod is arranged in the center of the feeding port, supporting blocks distributed in an annular array mode are arranged at the upper end of the material box, and the adjusting valve is arranged on one side of each supporting block. A spring is arranged on one side of the adjusting valve, a valve seat is arranged in the conical head, a valve block is arranged in the valve seat, a compression spring is arranged at the upper end of the valve block, the outer side of the feeding barrel is sleeved with a suction cover, a suction fan is arranged on one side of the feeding barrel, and hydraulic rods are arranged on the two sides of the feeding barrel. According to the 3D printing light-curing printing equipment, automatic quantitative feeding is achieved through the elastically-opened and closed feeding opening and extrusion opening and closing, the opening time of the feeding opening is short when the 3D printing light-curing printing equipment is used for feeding, and harm to personnel is reduced.

The present disclosure relates generally to manufacturing pharmaceutical products using additive manufacturing technology. An exemplary printing system comprises: a material supply module for receiving a set of printing materials; a flow distribution module comprising a flow distribution plate, wherein the material supply module is configured to transport a single flow corresponding to the set of printing materials to the flow distribution plate; wherein the flow distribution plate comprises a plurality of channels for dividing the single flow into a plurality of flows; a plurality of nozzles, wherein the plurality of nozzles comprises a plurality of needle-valve mechanisms; one or more controllers for controlling the plurality of needle-valve mechanisms to dispense the plurality of flows based on a plurality of nozzle-specific parameters; and a printing platform configured to receive the dispensed plurality of flows, wherein the printing platform is configured to move to form a batch of the pharmaceutical product.

The present disclosure provides a system and method for three-dimensional (3D) printing. The system comprises a post-treatment device. The post-treatment device comprises: a material receiving mechanism, which comprises a material receiving body, the material receiving body being configured to bear a 3D-printed object having a redundant printing material; and a driving mechanism, which is configured to allow the material receiving mechanism to rotate from a first state to a second state, so that the redundant printing material drips off of the 3D-printed object, wherein the 3D-printed object has at least two different inclination angles. The technical solution of the present disclosure effectively solves the problem in the prior art of methods for separating a redundant printing material from a 3D-printed object having a poor separation effect and low efficiency.

The invention discloses an extrusion volume flow optimization method and system for a printer, and the method comprises the steps: monitoring the operation state of an extrusion head of the printer in the printing process in real time, and obtaining corresponding monitoring data which at least comprises temperature data and pressure data; according to the monitoring data, a nozzle fluency index used for evaluating the extrusion fluency degree of the extrusion head nozzle is calculated; based on the nozzle fluency index and the monitoring data, calculating a printing fluidity index combining nozzle fluency and extrusion material flow characteristics; and optimizing the current extrusion volume flow according to the printing fluidity index. By means of the 3D printing method and device, the printing fluidity index combining the nozzle fluency and the material flow characteristic can be calculated, then dynamic optimization of the current extrusion volume flow is achieved, and the reliability and efficiency of 3D printing are improved.

The utility model discloses a stock bin, a 3D printing feeding device and a 3D printing system, the stock bin comprises a box body, a communicating piece and a guiding piece, and the box body is provided with an inner cavity; the communicating piece is arranged in the inner cavity, the communicating piece is provided with a discharging channel and at least one feeding channel, and the discharging channel is communicated with the feeding channel; the communicating piece further comprises a discharging releasing ring, one end of the discharging releasing ring extends into the discharging channel, the other end of the discharging releasing ring extends out of the discharging channel, and the discharging releasing ring is used for locking or releasing the extending material guiding pipe extending out of the box body from the discharging releasing ring. And the guide piece penetrates to the inner cavity from the outside of the box body and is movably connected with the box body so as to abut against the discharging release ring. The guiding piece movably abuts against the discharging releasing ring, the discharging releasing ring can be switched from the locking state to the releasing state, then a user can conveniently pull out the extending material guiding pipe from the discharging releasing ring from the outside of the box body, and therefore the user can conveniently clean broken wire materials extending out of the material guiding pipe.

An extruder for an additive manufacturing machine has a first and second extrusion duct (6, 7) separated from each other; a first and a second feeding system (8, 9), configured to feed a first and a second material into the first and the second extrusion duct (6, 7); a first and a second heating assembly (10, 11) configured to heat the first and the second material so as to determine the melting of the first and the second material; a mixing chamber (12), which is configured to allow the mixing of the first and of the second melt material exiting from the first and from the second extrusion duct (6, 7); and a control unit (14), configured to independently control the first and the second feeding system (8, 9) and the first and the second heating assembly (10, 11).

A method of fabricating a porous structure based on extrusion-based additive manufacturing is provided. The method includes: controlling a print head of an extruder to move along a print path for extruding a material along the print path on a print bed for fabricating the porous structure; and adjusting the extrusion flow rate with respect to a first section of the print path to form a first extruded material portion along the first section of the print path and adjusting the extrusion flow rate with respect to a second section of the print path to form a second extruded material portion along the second section of the print path, the second extruded material portion being formed adjacent to and opposing the first extruded material portion, such that a space formed therebetween constitutes the pore. A corresponding system for fabricating a porous structure and the fabricated porous structure are also provided.

The present disclosure relates generally to manufacturing pharmaceutical products using additive manufacturing technology. An exemplary printing system comprises: a material supply module for receiving a set of printing materials; a flow distribution module comprising a flow distribution plate, wherein the material supply module is configured to transport a single flow corresponding to the set of printing materials to the flow distribution plate; wherein the flow distribution plate comprises a plurality of channels for dividing the single flow into a plurality of flows; a plurality of nozzles, wherein the plurality of nozzles comprises a plurality of needle-valve mechanisms; one or more controllers for controlling the plurality of needle-valve mechanisms to dispense the plurality of flows based on a plurality of nozzle-specific parameters; and a printing platform configured to receive the dispensed plurality of flows, wherein the printing platform is configured to move to form a batch of the pharmaceutical product.

A delivery and storage device and a filament coiling device are provided. The delivery and storage device includes a device body, a plurality of storage bins, and a traveling assembly. The device body includes a chassis. The plurality of storage bins are disposed on the chassis and arranged in a direction parallel to the chassis. Each storage bin includes a stacking cavity and a pick-and-place opening formed in a top of the stacking cavity. The stacking cavity is configured to accommodate filament reels stacked in a direction perpendicular to the chassis and restrict the filament reels from moving in the direction parallel to the chassis. The delivery and storage device can effectively increase a number of filament reels stored, and is adaptable to an external loading and unloading mechanism which picks up a filament reel vertically.

The utility model discloses a 3D printer with a silk material cutting function, which comprises a spray head assembly, a material cutting assembly and a movement mechanism for driving the spray head assembly to move, a silk material channel for silk materials to pass through is arranged in the spray head assembly, the material cutting assembly comprises an impact block and a cutter assembly, the impact block is arranged on a base of the 3D printer, and the cutter assembly is arranged on the base. The cutter assembly is arranged on the spray head assembly and comprises a cutter and a cutter handle, the cutter handle is rotatably connected to the spray head assembly, the cutter is fixedly connected with the cutter handle, the cutter is arranged towards the silk material channel, and the cutter handle can abut against the impact block to be stressed under driving of the movement mechanism. The cutter handle rotates around the rotating center of the cutter handle and drives the cutter to move towards the wire channel end so as to transversely cut off wires in the wire channel. The wire material is cut off by arranging the impact block and adopting the mode of controlling the movement mechanism, an additional power source does not need to be arranged, the cost is reduced, and the automation degree of the 3D printer is improved.

The utility model provides a 3D printing curing device which comprises a box body, a plurality of fixing assemblies, a plurality of fixing assemblies and a plurality of fixing assemblies. The bearing plate is arranged in the accommodating cavity, and the bearing plate is used for bearing a to-be-cured part; the light source structure is arranged in the containing cavity, the light emitting end of the light source structure faces the bearing plate, and the light source structure is movably arranged so that the light emitting end of the light source structure can irradiate different positions of the bearing plate. According to the 3D printing curing equipment, the problem that the curing effect of 3D printing curing equipment in the prior art is not uniform is solved.

Inkjet print head (1) for selectively dosing a liquid (F) dropwise in a 3D printer, the inkjet print head (1) comprising: - an inkjet printing module (100) for selectively dosing the liquid (F) dropwise, the inkjet printing module (100) comprising: ▪ a liquid inlet (110) for supplying the liquid (F) into the inkjet printing module (100); ▪ at least one nozzle (120) for dispensing a metered drop of the liquid (FT) in the 3D printer; ▪ and a liquid return (130) for returning a return medium (R) from the inkjet printing module (100), comprising at least one liquid return capillary (131) for returning the return medium (M) from the nozzle (120), wherein the return medium (R) comprises the liquid (F) and / or a disturbing medium (S), in particular air (L) and / or particles (P) taken up into the nozzle (120) from the 3D printer; - a liquid tank (200) for holding the liquid (F) and for supplying the liquid inlet (110) of the inkjet printing module (100) with the liquid (F), wherein the liquid tank (200) comprises: ▪ a liquid supply (210) for supplying liquid (F) to the liquid tank (200); ▪ a vacuum connection (230) for applying a vacuum (U), in particular at the liquid tank (200), wherein a meniscus equilibrium pressure (MGD) in the nozzle (120) can be set as a result of the vacuum (U), by means of which an uncontrolled escape of the liquid (F) from the nozzle (120) and / or an uncontrolled suction of the interfering medium (S) from the 3D printer into the nozzle (120) is prevented; ▪ and a return liquid supply (240) for returning liquid (F) from the inkjet printing module (100) via the liquid return (130) into the liquid tank (200); - and a return pump (300) for pumping the return medium (R) from the inkjet printing module (100) via the liquid return (130) into the return liquid supply (240); wherein a pulsation damper (400) is arranged between the return pump (300) and the liquid return (130).

In one example in accordance with the present disclosure, a fluid extraction system is described. The fluid extraction system includes an interface to fluidically and electrically couple a removable extraction reservoir to a printing device. The removable extraction reservoir is to receive an amount of fluid from a reservoir in the printing device. The system also includes a controller to, based on data received from memory of an interfaced removable extraction reservoir, initiate an extraction operation wherein fluid from the reservoir is passed to the removable extraction reservoir.

The invention discloses a printing consumable allowance monitoring method, and relates to the technical field of consumable allowance monitoring, and the method comprises the steps: obtaining a first pressure value in an empty disk state and a second pressure value in a full disk state under preset environment parameters; on the basis of the preset type of wire, executing a wire running simulation program, and recording a third pressure value and a corresponding residual wire length in the wire drawing process; based on the first pressure value, the second pressure value, the third pressure value, the residual wire rod length, the preset environment parameters and the preset type of wire rod, a correction model of the pressure and the residual wire rod length is established; and collecting the current environmental parameters, the current pressure value and the currently used wire rod type, inputting into the correction model, and calculating to obtain the current residual wire rod length. According to the invention, the precision and robustness of printing consumable allowance monitoring and the adaptive capacity in a complex and changeable working environment are remarkably improved, so that the problems of low monitoring precision and poor adaptability in the prior art are effectively solved.

A powder container for handling powder in an additive manufacturing process. The container includes a powder vessel with a powder inlet in an upper portion thereof and a powder outlet in a lower portion thereof, a set of n sensors configured to determine a set of n observables, a first actuator configured to drive a first mechanical function of the powder container and optionally—to provide for additional safety as well as versatility a second actuator configured to drive a second mechanical function of the powder container and / or a multi-port connector configured to be connected with a corresponding connector of a powder handling station in an additive manufacturing process.

A method for creating a local discharge characteristic of an extrusion device, wherein the extrusion device discharges a printable material at a discharge nozzle by means of a motor-driven extrusion screw to form a three-dimensional structure from the printable material, and wherein the local discharge characteristic defines a discharge volume of the printable material from the discharge nozzle as a function of a rotation angle of the extrusion screw and / or a multiple thereof, comprising the steps of: - discharging the printable material by controlling the motor such that the extrusion screw has a substantially constant rotational speed; - continuously acquiring rotation angle information of the extrusion screw and storing the rotation angle information in a digital data memory;- Continuous detection of the strand-extruded material using a sensor system comprising at least one sensor and determination of the discharge volume of the strand-extruded material for a certain strand section; - Continuous assignment of the determined discharge volume to a stored rotation angle information of the extrusion screw, and - Creation of a local discharge characteristic based on a multitude of stored rotation angle information and their respective assigned discharge volumes.;

A method may include (a) providing a cartridge including a volume of photohardenable composition in an irradiation zone; (b) selectively irradiating the volume of the photohardenable composition included in the cartridge with one or more wavelengths of excitation light to at least partially harden, polymerize, and / or cross-link the resin composition to at least partially form one or more objects in the volume; (c) removing the cartridge from the irradiation zone after selective irradiation step; and optionally repeating steps (a)-(c) with a series of one or more additional cartridges including a next volume of photohardenable composition. An assembly for printing 3D objects may include a printer having at least one excitation light source configured to solidify photohardenable resin and form one or more 3D objects in a cartridge.

A feeder system includes a donut-ring-shaped first wheel having a first groove recessed below its top surface, with a first hopper positioned above to receive material. A first conduit connects the hopper bottom to the groove, defining a feeding path. A mixer unit receives materials, connected to the first groove via a first suction head. A first motor rotates the first wheel, transferring material from hopper to groove to mixer unit. A donut-ring-shaped second wheel includes a second groove, second hopper, and second conduit. A second suction head connects this groove to the mixer unit, while a second motor enables wheel rotation for material transfer. The mixer unit combines both materials. The feeder system implements coaxial wheel arrangement with independent material flow control, enabling independent powder delivery for additive manufacturing applications.

A thermal folding forming method for additive manufacturing of a three-dimensional lattice structure of a fiber-reinforced composite, the method comprising the following specific steps: a first step, printing a fiber-reinforced composite having a repeated two-dimensional planar lattice structure by means of a dual-nozzle continuous fiber-reinforced composite additive manufacturing apparatus; a second step, using a robotic arm gripper (4) to grip the printed fiber-reinforced composite having a two-dimensional planar lattice structure and place same onto a retractable hot roller thermal folding and heating device, and heating same at a fiber connection point, wherein the thermal folding device is arranged in a 10 x 10 columnar lattice and can be fully retracted with a retractable height ranging from 0-50 mm, such that the fiber-reinforced composite having a two-dimensional planar lattice structure is heated and elevated by means of the retractable hot roller, and can be folded into the fiber-reinforced composite having a three-dimensional lattice structure; and a third step, using the robotic arm gripper (4) to grip the fiber-reinforced composite having a three-dimensional lattice structure and place same into a water-cooling box for water cooling and shape setting. The forming method can improve the structural complexity of the fiber-reinforced composite, thereby achieving the three-dimensional structure transformation of the composite.

A material changing mechanism and 3D printing system for a 3D printer are disclosed. The material changing mechanism includes: a support frame; a material guiding unit mounted on the support frame, the material guiding unit including multiple sub-material guiding tubes and material guiding ports communicating with the multiple sub-material guiding tubes, the material guiding ports being used to engage with the main feed tube of the 3D printer; and multiple material changing units mounted on the support frame. This allows for the automatic provision of multiple feed lines to the 3D printer according to printing needs and facilitates easy replacement of the feed tray.

Disclosed are a material supply mechanism, a tray assembly, a 3D printer and a 3D printing method. The material supply mechanism is configured to add a printing material to a tray of the 3D printer, and includes: a conveying assembly including a storage body and a conveying member, the storage body is internally provided with a storage cavity, the storage cavity is configured to store the printing material, and the conveying member is arranged in the storage cavity; a transmission assembly connected to the conveying member in a transmission manner and configured to drive the conveying member to move in the storage cavity when driven; and an output assembly connected to the storage body and configured to guide the printing material out into the tray. The disclosure improves in the related art that it is inconvenient to add a printing material for a 3D printer.

The utility model relates to the field of 3D printing equipment, in particular to a 3D printing wire arranging mechanism which comprises a supporting rod and an elastic wire bunching sleeve used for being sleeved with a material pipe above a printing rack, the bottom end of the supporting rod is installed on the printing rack, and the top end of the supporting rod is correspondingly and universally connected with the outer sleeve wall of the wire bunching sleeve. The sleeve wall of the bunching sleeve is provided with an inserting seam penetrating through the two ends of the bunching sleeve, and the edges of the two sleeve walls, corresponding to the two sides of the inserting seam, of the bunching sleeve are turned outwards to form flanging parts. According to the wire arranging mechanism, flexible movement of the spray head is not affected, and the material wire can be effectively supported for a long time.

The invention relates to a material feed (10) for an additive manufacturing device (200) or injection molding device (200) with a screw conveyor (210) in a conveying cylinder (220) for producing three-dimensional objects from plasticizable and solidifiable material. This comprises a body (20) which is configured to receive and provide a material supply volume in a material reservoir (40), and a material outlet (36) arranged on the body (20) which can be connected to the conveying cylinder (220).A material conveying / dosing device (70, 80, 90, 100) is arranged in or connected to the material outlet (36), which is designed to enable the material to be conveyed / dosed as required from the material storage (40) into the conveying cylinder (220) by means of a gravimetric or volumetric and / or optical material conveying / dosing device (70, 80, 90, 100) when the body (20) and conveying cylinder (220) are connected to the material storage volume.

The present invention relates to an additive manufacturing apparatus for additively manufacturing a component, including: a resin vat unit which includes: a reservoir for storing UV light photocurable resin; and a UV-transparent window at the bottom of the reservoir, the UV-transparent window includes a UV-transparent plate and a UV-transparent anti-adhesive flexible foil; a projection unit for projecting UV light through the UV-transparent window into the reservoir; a movable building platform having a surface onto which the component can be formed through layerwise curing of said resin. The UV-transparent window further includes: an optical means which is adapted to diffuse the projected UV light towards the building platform into a region (R) where the UV light photocurable resin is to be layerwise cured, the optical means is arranged in the light path of the projected UV light.