374results 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.

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.

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).

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.

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.

One example of a jettable antioxidant formulation is used for three-dimensional (3D) printing. The jettable antioxidant formulation includes an antioxidant blend; a surfactant, a dispersant, or a combination thereof; a water-soluble or water-miscible organic co-solvent; and water. The antioxidant blend consists of a primary antioxidant and a secondary antioxidant.

The invention relates to a medical high polymer material 3D intelligent printing method based on a selective laser sintering process. The method comprises the following steps that optimal initial process parameters are recommended based on material characteristics and part requirements; carrying out processing according to the optimal initial process parameters, and monitoring a processing material in real time through a sensor; if machining defects are monitored, an AI model is adopted to calculate and adjust technological parameters, and meanwhile, local repair is carried out on the detected defects; after printing of each layer is completed, the technological parameter database is updated, and technological parameters of subsequent layers are optimized until the machining process is finished; in the printing process, once defects are monitored, the AI model can quickly calculate and adjust process parameters, manual intervention is not needed, and the time for finding and solving problems is greatly shortened; meanwhile, the reinforcement learning algorithm can continuously learn and optimize a process parameter adjustment strategy, so that adjustment is more accurate and efficient, and repeated printing and repair time caused by unreasonable parameters are reduced.

A method of operating an apparatus for the layerwise manufacture of 3D objects. The method includes two or more operational cycles of a warm up phase, starting from ambient, followed by a build phase and a cooling phase. The warm up phase and the build phase each include a layer cycle of: (a) dosing build material to the work surface; (b) distributing a portion of the dosed amount over a build area; (c) heating the dosed amount; and (d) monitoring a temperature of the build material to determine a thermal state. The build phase includes melting layer-specific regions. These steps are repeated until the warm up and build phases are completed. A property of the subsequent warm up phases is determined such that the duration of a subsequent warm up phase is shorter than the duration of a preceding warm up phase.

The invention relates to a device for decoupling a process chamber 21 of a machine tool from a powder conveying area which is set up for receiving and / or dispensing material powder 33, wherein the machine tool is set up for the layer-by-layer construction of a workpiece by means of applied material layers from the material powder 33 and the device is characterized in that at least one activatable sealing element 2, 3, 4, 5 is provided for decoupling the powder conveying area from the process chamber 21.

A disposable tank and build platform for a 3D printer are disclosed. The container is pre-filled and sealed with light-cured resin. The build platform is a surface to which the printed part adheres during the printing process. The build platform allows for application-specific containers to minimize resin waste during small print batches. The container further comprises a print screen. The print screen is a surface that allows light to pass through to cure the resin. The container with the light-cured resin is configured to allow operators to go through the print process with minimal resin handling and eliminates the need to measure the amount of resin during setup. Further, the container and build platform may come in a type of cartridge that is used up to build specific components such as dental appliances.

High speed, accurate, scalable, and dimension-insensitive additive manufacturing of a Three-Dimensional (3D) object may use incrementally solidifying light-sensitive resin layers. A new layer is formed by supplying the resin liquid via a cavity in the formed 3D object, and curing the supplied resin by a focused light beam, such as a laser beam. The added layers are formed by supplying, 2024 / 184876 using a pump, the light-cured resin fluid to one or more bottom openings to be output from the top opening (or to multiple openings) via a vertical cavity (or multiple cavities) of the 3D object. The curing is by focusing a light beam to the area of the resin output from the top opening, while keeping the top opening non-cured, so that resin can be passed via the cavity. Such 3D printing may be directly applied to any surface, such as a floor, wall, wing structure, or machined part.

A build material escapement assembly (300) for an additive manufacturing system (100) includes a retaining plate (310) defining an outer perimeter (312) and an inner perimeter (314), a retractable plate (350), and a top plate (320) coupled to the retractable plate (350), the top plate (320) including a top plate perimeter (322) and being actuatable between a retracted position and an extended position. A diaphragm (330) is coupled to the top plate (320) via the retractable plate (350) and further includes an exposed area (332) extending between the inner perimeter (314) of the retaining plate (310) and the top plate perimeter (322) of the top plate (320). The retractable plate (350) is actuated in a lateral direction as the top plate (320) is moved from the retracted position to the extended position, and a width of the exposed area (332) of the diaphragm (330) is greater than a travel distance (D) that the retractable plate (350) is actuated in the lateral direction.

Examples refer to powder feeding systems including a powder feeder connectable to a laser metal deposition equipment, the powder feeder having a feeding hopper to store powder, a first powder outlet through which powder is feed to the laser metal deposition equipment and a first powder inlet, a refilling hopper to store additional powder that includes a second powder outlet connected to the first powder inlet through which the additional powder is provided to the feeding hopper and a pressure generation component to generate an operating pressure level inside the feeding hopper. The system also includes a controller that, during normal operation of the powder feeder and upon reception of a refilling signal, causes the generation of a pressure level inside the refilling hopper substantially equal to the operating pressure level and causes the passage of additional powder from the refilling hopper to the feeding hopper.

The utility model relates to the technical field of 3D printing, in particular to an ink circulation framework of a 3D printer, the 3D printer and a control system of the 3D printer, and the ink circulation framework comprises a spray head, the spray head is provided with an input end and an output end, and the input end communicates with an ink inlet cavity through a spray head flow inlet channel; the output end is communicated with the ink return cavity through the nozzle flow outlet channel; and the flowing ink path is used for communicating the ink return cavity with the ink inlet cavity. According to the ink circulation framework of the 3D printer, the ink circulation framework guides ink in the ink return cavity to the ink inlet cavity through the flowing ink path, and the ink in the ink inlet cavity can flow back to the ink return cavity through the negative pressure air path under the negative pressure effect, so that ink circulation is achieved, it is guaranteed that sufficient ink exists in a spray head, and the ink circulation efficiency is improved. The phenomenon of insufficient ink supply is avoided, airflow vibration in the negative pressure adjusting process is buffered based on the auxiliary negative pressure air box in the negative pressure backflow process, bubbles are reduced, namely, the bubbles are reserved, and continuous and smooth ink output is facilitated.

The application discloses a kind of short-range extrusion device and working method for realizing multicolor mixing, solve the printing precision of prior art long-range feeding printing device, the movement precision of short-range feeding printing device is low, with the beneficial effect of improving printing precision, specific scheme is as follows: a kind of short-range extrusion device for realizing multicolor mixing, including driving module, feeding extrusion module, color mixing proportion control module and mixed extrusion module connected in sequence, power assembly is provided with multiple output shafts, each output shaft is respectively matched with corresponding feeding component, feeding extrusion module includes feeding fixed seat, feeding fixed seat supports tensioning mechanism, the clamping force between feeding component and tensioning mechanism is adjustable, multiple coaxial baffles are arranged between color mixing proportion control module and mixed extrusion module, the baffle is provided with the shielding groove that can be communicated with melt cavity, the baffle can be rotated so that the shielding groove shields part of melt cavity to realize flow regulation.

The invention discloses a preparation method of an environment-friendly 3D printing three-dimensional surface floor, which comprises the following steps: S1, drawing a plane drawing of the floor, generating a 3D model of the floor by using a computer, and obtaining all layered structures and arrangement modes for forming the floor; and S2, raw materials for preparing the floor are prepared according to the 3D model of the floor in the S1, the raw materials are conveyed into a 3D printer for 3D printing, and all layered structures for the floor are printed. Through a sustainable raw material system, a formaldehyde-free laminating process, high-precision 3D printing texture forming, a three-layer environment-friendly protection layer, a bio-based edge sealing technology and an internet-of-things intelligent production system, production energy consumption is reduced by 40%, waste is reduced by 50%, closed-loop recovery is achieved, meanwhile, the international environment protection certification is met, the production efficiency is improved by 30%, and the production cost is reduced. And a full-chain green manufacturing scheme for synergistically improving the environmental protection performance, the production efficiency and the product quality is formed, and the double-carbon target requirement is met.

A method of shaping a shaping material, the shaping material including a powder of a fluororesin, the powder of the fluororesin having a static bulk density of 0.3 g / ml or more and 1.5 g / ml or less, and the powder of the fluororesin having a particle diameter of 10 μm or more and 300 μm or less in terms of D50.

To provide a technique capable of improving at least one of high accuracy and high speed in shaping a three dimensional shaped article.SOLUTION: The three-dimensional shaping apparatus includes a plasticizing unit that plasticizes a material to generate a shaping material, a nozzle that discharges the shaping material toward a stage, and a control unit that controls shaping of a three-dimensional shaped object by discharging the shaping material from the nozzle, wherein the plasticizing unit includes a drive motor, a screw, a barrel, a heating unit, and a position changing mechanism that changes a relative position between the screw and the barrel. The control unit causes the plasticizing unit to generate the shaping material by setting the distance between the screw and the barrel to a first distance by the position changing mechanism when the condition related to shaping is a first condition, and causes the plasticizing unit to generate the shaping material by setting the distance between the screw and the barrel to a second distance by the position changing mechanism when the condition is a second condition, and the second distance is larger than the first distance.SELECTED DRAWING: Figure 1

A dual printing head device with a tensioning device for continuous fiber-reinforced composites includes a printing support frame; a continuous fiber printing mechanism is provided on the printing support frame, and a filament extrusion mechanism is provided next to the continuous fiber printing mechanism; the filament extrusion mechanism is connected to the printing support frame through a dual nozzle switching mechanism; a fiber guide block is provided below the continuous fiber printing mechanism; a speed feedback follower wheel is provided next to the fiber guide block; the speed feedback follower wheel is connected to a filament feeding fiber force control encoder; and the dual nozzle switching mechanism includes a horizontal guide rail, a push plate mounting plate, a positioning guide groove, a filament fixing plate, and a rear mounting plate. The dual printing head device achieves free switching between dual heads during printing, ensuring the stability of feeding continuous fibers.

Provided are: a method and a device for determining the degree of deterioration of a shaping powder which enable shaped objects to be inhibited from decreasing in mechanical property or dimensional accuracy; a method and a device for producing a reclaimed shaping powder; and a method and a device for producing a three-dimensional shaped object.　A dispersion obtained by dispersing a shaping powder in a solvent is examined for 1H nucleus spin-spin relaxation time T2 using a pulsed NMR device. The specific surface area of the shaping powder is calculated on the basis of the 1H nucleus spin-spin relaxation time T2 of the dispersion and the 1H nucleus spin-spin relaxation time T2 of the solvent. The specific surface area of a shaping powder is apparently increased or reduced by preheating within a powder bed or by heat due to irradiation with laser light or an electron beam. The specific surface area of the shaping powder can hence be used as an index to the degree of deterioration of the shaping powder.

The present application provides a cutting assembly for a 3D printer, an extrusion mechanism and the 3D printer. The cutting assembly comprises a mounting base, a first cutting arm, a second cutting arm, and a push rod. The push rod and the mounting base are arranged opposite to each other, an extrusion part is arranged on the side of the push rod facing the mounting base, and the extrusion part defines an extrusion space. One end of the first cutting arm is rotatably connected to the mounting base, and the other end of the first cutting arm is arranged in the extrusion space. One end of the second cutting arm and the first cutting arm are jointly and rotatably connected to the mounting base, and the other end of the second cutting arm is arranged in the extrusion space. The first cutting arm and the second cutting arm are arranged opposite to each other to define a cutting space, and in the cutting space, a cutter is arranged on the first cutting arm and / or the second cutting arm. When the first cutting arm and the second cutting arm apply force together, the cutter can move towards consumables in the cutting space to quickly cut off the consumables, and the cutting process is fast and efficient.

A three-dimensional shaping device includes: a nozzle configured to discharge a shaping material from a nozzle opening toward a stage; a position changing unit configured to change a relative position between the nozzle and the stage; a discharge amount adjusting unit configured to adjust a discharge amount by changing an opening area of the flow path; a pressure adjusting unit including a branch flow path coupled to the flow path between the discharge amount adjusting unit and the nozzle opening, and a plunger configured to move in the branch flow path; and a control unit configured to control the position changing unit, the discharge amount adjusting unit, and the pressure adjusting unit. The control unit is configured to execute an operation of absorbing the shaping material into the branch flow path by moving the plunger and an operation of delivering the absorbed shaping material to the branch flow path when shaping one partial shaped object having a continuous linear shape, and control movement of the plunger such that positions of the plunger at a start and an end of a shaping section of the partial shaped object match with each other.

In some examples, an apparatus (100) can include a syringe body (101) including an electrical interface (415) at a side surface of the syringe body, an interface (613) at an end of the syringe body including an output at a distal surface of the syringe body, a print material particles reservoir located in the syringe body, and a structure (106) to adapt a volume of the print material particles reservoir to move print material particles out of the print material particles reservoir through the output, where in response to the volume adapting structure moving from a first position to a second position, a signal is transmitted by the electrical interface..

A method for manufacturing a graphene-incorporated UHMWPE structure, the method comprising the step of i. providing a build chamber having a vertically movable platform defining a build plate, on which SLS In a 3D printing process, powder material may be sintered layer by layer, and the method further includes: ii. preheating a build chamber; iii. reducing the pressure in the build chamber and / or supplying an inert gas into the build chamber; iv. depositing a UHMWPE powder layer on a build plate to define a print bed; v. exposing a selected area of ​​the UHMWPE powder layer to at least one first laser light source to create a sintered region of the UHMWPE powder layer; vi. exposing a selected area of ​​the UHMWPE powder sintered region to at least one second laser light source to induce graphene formation derived from the UHMWPE powder; vii. lowering the platform by one step corresponding to the thickness of the UHMWPE powder layer and depositing a further UHMWPE powder layer thereon; and viii. repeating steps (v) to (vii) until the structure is complete.

The application discloses a powder stirring and conveying mechanism and an additive manufacturing device. The powder stirring and conveying mechanism comprises a stirring cavity, a stirrer which is at least partially located in the stirring cavity and can be driven to rotate in a forward direction and a reverse direction, the stirrer comprising a main shaft and a plurality of stirring blades fixed on the main shaft, a powder supply plate which is rotatably arranged in the stirring cavity and comprises a main body capable of supporting powder and a plurality of mounting arms extending from the main body, the plurality of mounting arms being rotatably arranged on the main shaft, and the stirrer is configured to contact the powder supply plate from one side of the powder supply plate and push the powder supply plate to rotate in the forward direction in the stirring cavity when rotating in the forward direction, and contact the powder supply plate from the other side of the powder supply plate and push the powder supply plate to rotate in the reverse direction in the stirring cavity when rotating in the reverse direction. The application can facilitate daily maintenance of the mechanism by arranging the stirrer and the powder supply plate in a split manner, and the stirrer can be designed to have a larger swing range as required.

The application relates to the technical field of glass surface printing, and discloses a UV nano-imprint superposition 3D printing composite device and a process thereof, which comprises a bottom plate, a nano-imprint mechanism arranged on the bottom plate, and a 3D printing mechanism arranged above the nano-imprint mechanism; the 3D printing mechanism is fixed on the bottom plate; the 3D printing mechanism comprises a frame structure composed of a vertical rod and a horizontal rod; a moving trolley is arranged on the horizontal rod at the upper end of the frame structure; a fixing rod is arranged between the two moving trolleys; a moving trolley is also arranged on the fixing rod, and a 3D printing nozzle and a UV light curing device are arranged on the moving trolley. The glass surface is subjected to nano-imprint through the nano-imprint mechanism, then the 3D printing nozzle and the UV light curing device on the moving trolley are used to perform curing and 3D printing in sequence, so that the color pattern and the embossing texture are ensured to be manufactured, the complex and tedious color matching operation is not needed, the product scrappage rate is low, and the cost is low. The application also provides a UV nano-imprint superposition 3D printing composite process.

The present disclosure provides a filament replacement mechanism for a 3D printer and a 3D printing system. The filament replacement mechanism includes: a support; a filament guide unit disposed on the support and including a plurality of secondary filament guide tubes and a filament guide opening connecting with the plurality of secondary filament guide tubes, where the filament guide opening is configured to be jointed with a main filament guide tube of the 3D printer; and a plurality of filament replacement units disposed on the support. According to the present disclosure, a variety of filaments can be automatically provided for the 3D printer according to printing needs, and the replacement of filament spools is also facilitated.

A method of operating an apparatus for the layerwise manufacture of 3D objects. The method includes two or more operational cycles of a warm up phase, starting from ambient, followed by a build phase and a cooling phase. The warm up phase and the build phase each include a layer cycle of: (a) dosing build material to the work surface; (b) distributing a portion of the dosed amount over a build area; (c) heating the dosed amount; and (d) monitoring a temperature of the build material to determine a thermal state. The build phase includes melting layer-specific regions. These steps are repeated until the warm up and build phases are completed. A property of the subsequent warm up phases is determined such that the duration of a subsequent warm up phase is shorter than the duration of a preceding warm up phase.

The invention provides a wide aerosol jet printing system and method for high-throughput preparation of extremely low aspect ratio films. The system is composed of a high-throughput feeding module, a wide aerosol spray head, a visual module, a curing module, a motion platform and an industrial personal computer. Wherein the wide aerosol spray head adopts a flat outlet structure, limited expansion of aerosol micro-droplet cloud in the long-axis direction and focusing collimation of aerosol micro-droplet cloud in the short-axis direction are realized through coordinated regulation and control of carrier gas and sheath gas, and wide aerosol jet flow with specific width and stable collimation is generated, so that the single-channel deposition efficiency is remarkably improved. A staggered deposition strategy based on deposition section characteristics is further introduced, in-plane structure and functional anisotropy generated in the expansion manufacturing process is effectively inhibited, and a technical basis is provided for application of a high-performance thin film in the fields of flexible electronics, biosensing, energy devices and the like.