12128results about "3D object support structures" patented technology

The invention relates to the technical field of additive manufacturing, and particularly discloses a real-time defect detection and in-situ repair method and device in the additive manufacturing process, and the method comprises the steps that a multi-mode sensing system is integrated on additive manufacturing equipment, the multi-mode sensing system comprises a high-resolution CCD camera, a laser scanner and a thermal infrared imager, and data acquisition is synchronized; a hierarchical scanning strategy is adopted, two-dimensional surface images, three-dimensional point cloud data and thermal field distribution information are collected before and after each layer is machined, and the data synchronization precision is smaller than 0.1 ms; according to the invention, a multi-modal sensing system and an advanced algorithm are integrated, so that real-time detection and accurate repair of defects are successfully realized; a high-resolution CCD camera, a laser scanner, a thermal infrared imager and other sensors are adopted, a cross-scale RANSAC algorithm and a depth feature fusion network are combined, surface and internal defects are accurately detected, and laser remelting parameters are adjusted in real time for in-situ repair.

An information technology system for a distributed manufacturing network includes an additive manufacturing management platform configured to manage process and production workflows for a set of distributed manufacturing network entities through design, modeling, printing, and supply chain stages. The information technology system includes an artificial intelligence system configured to learn on a training set of outcomes, parameters, and data collected from the set of distributed manufacturing network entities of the distributed manufacturing network to optimize digital production processes and workflows. The information technology system includes a distributed ledger system integrated with a digital thread configured to provide unified views of workflow and transaction information to entities in the distributed manufacturing network.

A robot fleet management platform includes a job configuration system that determines tasks to be performed by robots of a robot fleet based on a job request and a first fleet objective. A proxy service applies fleet configuration services to the tasks to produce a data structure. An intelligence layer activates intelligence services to produce a robot task and associated contextual information that facilitates robot selection and task ordering. A job workflow system generates a workflow defining a performance order of the tasks. A workflow simulation system simulates performance of the job request based on the workflow to recursively redefine the tasks, the data structure, or the workflow until the simulation result satisfies a second fleet objective. In response to the simulation result satisfying the set of fleet objectives, a plan generator generates a job execution plan based on the set of robot tasks, the data structure, and the workflow.

The invention belongs to the technical field of 3D printing, and particularly relates to a 3D printing control method based on multi-material gradient transition, which comprises the steps of model processing, multi-material distribution, path planning, dynamic parameter control, online monitoring and feedback optimization. According to the method, through dynamic mixing of a nonlinear gradient function and multiple materials, limitation of traditional discrete material switching is broken through, continuous smooth transition of material attributes is achieved, printing parameters are dynamically adjusted, and the forming consistency of gradient materials under complex working conditions is remarkably improved; local strengthening is carried out according to the thermodynamic property difference of a multi-material interface, interface embrittlement caused by a traditional single process is avoided, the curing degree is detected in real time through a spectrum sensor, the problem that the curing degree of a traditional light curing process is uncontrollable is solved by combining partitioned UV light intensity adjustment and control, and precise gradient forming of a soft and hard alternate structure is achieved.

A dynamic vision system includes a variable focus liquid lens optical assembly. The dynamic vision system includes a variable lighting assembly. The dynamic vision system includes a control system configured to adjust one or more optical parameters and data collected from the variable focus liquid lens optical assembly in real time. The dynamic vision system includes a control system configured to adjust the variable lighting assembly. The dynamic vision system includes a processing system that dynamically learns on a training set of outcomes, parameters, and data collected from the variable focus liquid lens optical assembly to train a set of machine learning models to control the variable focus liquid lens optical assembly to optimize collection of data for processing by the set of machine learning models.

The invention provides a gradient crosslinking process of photosensitive resin for photocuring 3D printing, and relates to the technical field of photocuring 3D printing materials. The gradient crosslinking process of the photosensitive resin for photocuring 3D printing comprises the following steps: S1, based on double-initiator system design, adopting molecular dynamics simulation screening, respectively adding a 405nm sensitive type TPO-L initiator and a 365nm sensitive type I TX initiator into an epoxy acrylate prepolymer, and verifying initiation energy barrier matching through quantum chemistry calculation, and generating a pre-initiation gradient resin formula. Through molecular dynamics simulation, initiator combinations are screened, energy barrier matching is verified, the ratio of dual-wavelength sensitive initiators is optimized, and accurate triggering of surface layer and deep layer cross-linking reaction is ensured. And a three-roller grinding and dispersing process is combined with ultrasonic oscillation to eliminate nanoparticle aggregation, so that the mechanical uniformity and light scattering effect of a resin system are improved.

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.

The invention provides a pull-up DLP type 3D printer which comprises a workbench and an air source, a transmission mechanism is installed on the workbench, a printing platform is installed on the transmission mechanism, an air guide hole is formed in the printing platform, and the air source communicates with the air guide hole; a demolding hole communicated with the air guide hole is formed in the model, and the demolding hole at least downwards penetrates through one curing layer; and after the curing layer penetrated by one demolding hole is completed, compressed gas in the gas source can enter the demolding hole through the gas guide hole, so that the release film is gradually stripped from the curing layer from inside to outside. The invention further provides a 3D printing method. In the model printing process, after printing of one curing layer is completed, compressed air in the air source enters the demolding hole through the air guide hole, and the release film and the model are stripped from inside to outside; and meanwhile, the printing platform lifts the model upwards, so that the release film and the model are stripped from outside to inside, an inside and outside bidirectional stripping mode is formed, and the stripping speed and the printing speed of the release film are improved.

A method of configuring a robot of a fleet of robots for use of an AI chipset includes receiving a request for a robotic fleet to perform a job. The method includes defining a set of tasks that are to be performed by the robotic fleet in performance of the job. The method includes assigning at least one task of the set of tasks to a robot. The method includes determining a configuration for the robot based on the assigned task and a components inventory that indicates different components that can be provisioned to the robot including at least one AI chipset, and for each component, a set of extended capabilities and a status of the component. The method includes configuring the robot based on the determined configuration to use the at least one AI chipset. The method includes deploying the robotic fleet to perform the job.

A method of manufacturing a part includes removing material with a cutting machine (11) to form a plurality of segments (13A-13D, 14A-14D, 15A-15D), at least two of the segments including an anchoring structure, connecting two or more segments to form a first layer, and connecting two or more additional segments to form a second layer. The method also includes connecting the first layer to the second layer and connecting a support structure directly to two of the anchoring structures.

The invention discloses a release film inside and outside stripping type three-dimensional printer which comprises a workbench and a material pump, a transmission mechanism is installed on the workbench, a printing platform is installed on the transmission mechanism, a liquid guide hole is formed in the printing platform, a release film of a material groove divides the material groove into an air bin and a material bin, the air bin is filled with air, and the material bin is filled with material. Photosensitive resin is contained in the stock bin, the material pump is used for introducing the photosensitive resin in the stock bin into the demolding hole of the model through the liquid guide hole, and the release film and the model form an internal and external bidirectional stripping mode in combination with the adjustment of the pressure of the gas bin. The invention further discloses a three-dimensional printing method. The photosensitive resin in the trough is injected into the demolding hole of the model through the material pump, so that the release film is separated from the model from the inner direction and the outer direction of the model, and the stripping speed and the printing speed of the release film are increased.

The invention discloses a multi-light-spot batch 3D printing device and method, and belongs to the field of 3D printing, the device comprises at least one galvanometer scanning unit, and each galvanometer scanning unit is provided with a laser beam splitting unit; the laser beam splitting unit is used for splitting one laser beam into a plurality of laser beams so as to form a laser matrix, and the distance between adjacent laser beams in the laser matrix is adjusted; the galvanometer scanning unit is used for reflecting the laser matrix to the printing working face, the laser matrix scans on the printing working face by adjusting the reflection angle of the galvanometer scanning unit, and multiple parts are printed in batches. Under the condition that the number of the galvanometers and the number of the lasers are not increased, the printing speed of small parts can be increased, and the requirement for batch production is met.

The invention provides an intelligent image processing method and device for UV curing 3D ink-jet printing and a storage medium, and the method comprises the steps: carrying out the contour feature extraction of a slice image, and intelligently recognizing a supporting region based on the interlayer contour change and geometric features; printing data corresponding to the color ink layer, the white ink layer, the gloss oil layer, the shaping layer and the supporting layer are generated according to the contour features, the shrinkage judgment result and the overhanging area recognition result, the printing data serve as spot color channels and are combined with CMYK channels of the color ink layer, halftone processing is carried out on the data of the channels, and the color ink layer is obtained. And finally, generating and outputting a TIF format image file comprising at least eight channels, wherein the TIF format image file is used for driving the UV curing 3D ink-jet printer, the equipment and the storage medium storage and is used for realizing the intelligent image processing method during execution. According to the method, the printing precision and the material utilization rate are improved, and the problems of support generation, color management and quality control in multi-material 3D printing are effectively solved.

The invention belongs to the technical field of electrohydrodynamic printing control, and discloses an electrohydrodynamic printing control method and device, electronic equipment and a storage medium. The method comprises the steps that the viscosity state parameters of fluid in the printing process of an electrohydrodynamic printing system are obtained in real time, inputting the viscosity state parameter into a preset fluid state calculation formula, calculating to obtain a fluid state evaluation value of the fluid, adjusting the electric field parameter according to the fluid state evaluation value and a preset adjustment criterion to adapt to the state change of the fluid, obtaining the adjusted electric field parameter, and determining the viscosity of the fluid based on the viscosity change of the fluid and the Taylor cone form. The adjusted electric field parameters are optimized to control the electro-hydrodynamic printing system to maintain the stability of the Taylor cone; the electric field parameters are adjusted according to the fluid state evaluation value, the viscosity change and the Taylor cone form of the fluid in the printing process, so that the stability of the Taylor cone is maintained by the electro-hydrodynamic printing system, and the printing efficiency of electro-hydrodynamic printing is improved.

To form a cured portion quickly. A stereolithography apparatus includes a splitting / coupling unit, a first spatial light modulation unit, and a second spatial light modulation unit. The splitting / coupling unit splits incident light applied to a photocurable resin to form a cured portion, in a first direction and a second direction, couples light incident from the first direction and light incident from the second direction, and emits the coupled light in a third direction. The first spatial light modulation unit is arranged in the first direction to modulate a light beam from the splitting / coupling unit into a light beam having a first pattern that is a pattern of the cured portion and emits the light beam having the first pattern to the splitting / coupling unit, for coupling. The second spatial light modulation unit is arranged in the second direction to modulate a light beam from the splitting / coupling unit to a light beam having a second pattern in the vicinity of the first pattern and emits the light beam having the second pattern to the splitting / coupling unit, for coupling.

The invention provides a method for adjusting the light intensity uniformity of an optical system, the optical system comprises an optical module and an LCD screen, the LCD screen comprises a plurality of target areas, each target area is associated with at least one light-emitting assembly of the optical module, and the method comprises the following steps: through the light-emitting assemblies of the optical module, adjusting the light intensity uniformity of the optical system, at least radiating light to a first target area and a second target area in a plurality of target areas of the LCD screen; determining the light intensity distribution of the light passing through the first target area and the second target area, and based on the difference of the light intensity distribution, performing at least one of the following: adjusting the driving current or PWM of the light-emitting component associated with the first target area; adjusting a driving current or PWM of a light emitting component associated with the second target area; providing or adjusting a mask associated with the first target area; or providing or adjusting a mask associated with the second target area.

Methods of creating golf club components with complex structures that would be difficult, impossible, or cost prohibitive to produce, such as lattice structures, beam structures, and complex surface-based structures, are described herein. In particular, a binder jet machine is used create complex structures to optimize weighting, sound, and performance of golf club heads. The method preferably includes the steps of designing a golf club head component in CAD using optimization software, printing the component from a powdered material, and then removing excess powder from the component via port holes that extend into an external surface of the component and communicate with interior voids within the component.

The invention provides multi-material continuous fiber 3D printing high-precision forming equipment which is composed of a device frame, a moving mechanism, a printing mechanism, a lifting control mechanism, an auxiliary heating smooth forming mechanism and an electric heating system. Self-adaptive slicing is carried out according to the curvature of the classification model, and slices are divided into slice sets A, B,..., and are transmitted to respective printing systems; and the printing system corresponding to each slice carries out layer-by-layer printing according to slice information, and heating balls carry out continuous smoothing treatment on the surface while the layer is printed. And after the single-layer printing is finished, the balls are processed to keep a smooth state. By means of the device and method, highly-integrated multifunctional parts can be achieved, the design freedom degree is provided, the manufacturing process is simplified, the cost is reduced, use of materials can be optimized, the performance and light weight of parts are enhanced, and multi-material development of composite material 3D printing is promoted.

The invention provides a composite material additive manufacturing method and device based on size error compensation, and the method comprises the steps: selecting the number, type and combination mode of materials needed by each layered structure strip according to the material performance of a prepared component and the local thermodynamic performance and mechanical performance of the component; all strips of the single layered structure are laid at the same time or in each round, so that the single layered structure is formed; each strip is made of a single type of material or is formed by laminating and compounding a plurality of single type of materials, and the self-adaptive laying method is executed according to data of various sensors in the laying process and data of a detection mechanism after laying; and the steps are repeated, and the strips are laid layer by layer according to the layer sequence of the layered structure till the component is formed. According to the method, through effective combination of additive manufacturing modes of multiple fiber composite materials, multiple materials are combined and then laid, and it is ensured that the distribution of fibers and the infiltration effect of a matrix reach the ideal state.

The invention discloses a multi-material 3D printing device based on a photo-thermal coupling effect and a forming method of the multi-material 3D printing device, and relates to the field of additive manufacturing. The light source device is a semicircular convergent photo-thermal emitting device, 360-degree light source irradiation can be achieved, and illumination is uniform. After the slurry is extruded, the ultraviolet curing process can be immediately carried out, and the phenomenon that a printed entity collapses due to the influence of gravity factors caused by untimely light source irradiation can be obviously reduced. By adjusting the frequency and duty ratio of the light source, the temperature and illumination intensity of the slurry in the extrusion device are adjusted, so that the slurry is easier to extrude and form, and the formation of a hyperfine structure is realized; and a multi-axis moving platform is adopted, so that multi-angle complex structural parts can be easily formed. The extrusion device is used as a core, and high integration of the printing device is achieved. The printing efficiency is greatly improved, ultrahigh-precision and ultrahigh-height printing of a complex structure is achieved, and the problems of collapse caused by gravity factors and difficulty in forming a high-precision structural part are solved.

Methods and systems are disclosed for apparel assembly using three-dimensional printing directly onto fabric apparel materials. Disclosed is a method and system for direct three-dimensional printing and assembly of an article of apparel, including designing a three-dimensional pattern for printing, positioning at least a portion of the article on a tray in a three-dimensional printing system, the portion being positioned substantially flat on the tray, printing a three-dimensional material directly onto the article using the designed pattern, curing the printed material, and removing the article from the three-dimensional printing system.

The invention provides spin-drying and cleaning integrated equipment and a spin-drying and cleaning method.The spin-drying and cleaning integrated equipment comprises a spin-drying device, the spin-drying device is suitable for spin-drying a printing model, the spin-drying device is loaded with a spin-drying barrel when in a spin-drying state, and the printing model is suitable for being placed in the spin-drying barrel to be spin-dried; the cleaning device is suitable for cleaning the spin-dried printing model, the cleaning device comprises a plurality of cleaning loops, the cleaning device is loaded with a cleaning barrel in a cleaning state, the printing model is suitable for being placed in the cleaning barrel to be cleaned, and the cleaning barrel communicates with the plurality of cleaning loops; the cleaning loops are suitable for injecting cleaning liquid into the cleaning barrel and recycling the cleaning liquid, and the cleaning liquid of at least two cleaning loops is different. According to the spin-drying and cleaning integrated equipment and the spin-drying and cleaning method, the spin-drying and cleaning effect of the printing liquid medicine on the printing model can be greatly improved, and it is ensured that the smoothness, the detail precision and the mechanical strength of the printing model meet the design requirements.

The invention relates to the technical field of additive manufacturing, and discloses an additive manufacturing lens surface optimization method based on real-time feedback control. The method comprises the following steps: firstly, acquiring eye biometric data and personalized visual demand parameters of a wearer, establishing a personalized optical model of eyeballs according to the eye biometric data and the personalized visual demand parameters, and deducing a retina defocusing amount distribution map; and determining spatial arrangement and geometric morphology parameters of the distributed out-of-focus microstructure layer on the lens according to the atlas. In the additive manufacturing process, the optical material is deposited and solidified layer by layer, and the three-dimensional shape information of the surface of the optical material is obtained in real time after deposition of each layer. And comparing and analyzing the morphology information with a theoretical model to generate a morphology deviation result. And then, a correction instruction of the printing parameters is calculated by using the correction model, and the printing parameters of the additive manufacturing equipment are adjusted in real time, so that real-time compensation and optimization of the morphology deviation are realized, and finally, a high-precision lens product meeting personalized optical design requirements is manufactured.

The present disclosure relates to a pulsing release module, a pulsing release resin tank, and a 3D printing device and printing method. The pulsing release module comprises a resin tank assembly, a support assembly and a pulse gas supply assembly, wherein the resin tank assembly is provided with a release film; the support assembly is arranged below the resin tank assembly, the support assembly is provided with a support member, and a first preset distance is provided between the support member and the release film in a height direction and is configured to form a gas cavity between the support member and the release film; a gas inlet and a gas outlet, which are in communication with the gas cavity, are provided in the support member; and the pulse gas supply assembly comprises a gas oscillation assembly and a gas conveying line, the gas oscillation assembly being arranged on the gas conveying line, and the gas conveying line being connected to the gas inlet.

To provide a thermoplastic resin composition for fused deposition modeling, capable of obtaining a modeled body which is excellent in modeling performance and antistatic performance, which can be colored into various colors, and which has diverse design properties, a modeled body which is obtained with the thermoplastic resin composition by fused deposition modeling, and which not only is excellent in antistatic performance and but also has excellent design properties by coloration, and a method for producing the modeled body. A thermoplastic resin composition for fused deposition modeling, containing 3 to 45 parts by mass of one or more kinds of a polymeric compound (G) having the following polyether segment (A) and polymer segment (B), based on 100 parts by mass of a thermoplastic resin:Polyether segment (A): a polyether segment derived from a compound (a) having one or more ethyleneoxy groups and having a hydroxyl group at each of both ends;Polymer segment (B): one or more polymer segments selected from the group consisting of a polyester segment (D) and a polyamide segment (E).

The present disclosure provides energy absorbing materials and methods of fabricating the same. The energy absorbing materials of the present disclosure comprise a plurality of repeating cells, wherein each of the plurality of cells comprises a three-dimensional plate lattice, wherein a least a portion of plate lattice is prebuckled.

The invention discloses a 3D printed part morphology control method and system based on supporting structure morphology compensation, and relates to the technical field of additive manufacturing. Comprising the steps that a to-be-printed target model is processed, and a to-be-printed model considering a supporting structure form and slurry infiltration characteristics is generated; the printing direction of the to-be-printed model and the interface positions of different slurries during multi-material printing are determined, and the interface positions are perpendicular to the printing direction; according to the determined printing direction and the determined interface position, parts corresponding to different kinds of slurry are printed in sequence, and when the slurry is replaced, the datum plane of the printed part is cleaned, and residual materials are removed; and curing the printed model, removing the supporting structure, cleaning and integrally curing to obtain a final finished product. Liquid shaping is achieved only by means of the modified supporting structure, the printing time cost and the mechanical cost are saved, and accurate regulation and control of the liquid resin form are achieved on the premise that no external device is additionally arranged through integrally-formed supporting morphological optimization.

In one aspect, build materials for use with a three-dimensional (3D) printing system are described herein. In some embodiments, a build material described herein comprises an acrylate component, a photoinitiator component, a non-curable absorber component, and water. The photoinitiator component of the build material is operable to initiate curing of the acrylate component and / or other curable materials that may optionally be present when the photoinitiator is exposed to incident curing radiation having a Gaussian distribution of wavelengths and a peak wavelength λ. The build material has a penetration depth (Dp) and a critical energy (Ec) at the wavelength λ. In some embodiments, the Dp is greater than 200 μm and less than 300 μm, and the Ec is 3-12 mJ / cm2. In other embodiments, the Dp is greater than 10 μm and less than 50 μm, and the Ec is 5-40 mJ / cm2.

The present application provides an automatic calibration method for a 3D printing device, a 3D printing device, an electronic device and a storage medium. The method comprises: controlling a first jet to move, so that a nozzle of the first jet is aligned with an optical axis of an imaging apparatus, and then controlling the imaging apparatus to take a first image of a first recognition apparatus; controlling a second jet to move, so that a nozzle of the second jet is aligned with the optical axis of the imaging apparatus, and then controlling the imaging apparatus to take a second image of a second recognition apparatus; on the basis of the first image and a first actual characteristic physical quantity of the first recognition apparatus, calculating a first distance between the first recognition apparatus and the imaging apparatus; on the basis of the second image and a second actual characteristic physical quantity of the second recognition apparatus, calculating a second distance between the second recognition apparatus and the imaging apparatus; on the basis of the first distance and the second distance, calculating a vertical offset of the first jet and the second jet. The present application can automatically calibrate the jets of a 3D printing device with high calibration accuracy, and can save labor costs.

An information technology system for a distributed manufacturing network includes an additive manufacturing platform configured to manage workflows for a set of distributed manufacturing network entities associated with the distributed manufacturing network. The information technology system includes a set of digital twins generated by the additive manufacturing platform. The information technology system includes an artificial intelligence system configured to be executed by a data processing system in communication with the additive manufacturing platform. The artificial intelligence system is trained to generate process parameters for the workflows managed by the additive manufacturing platform using data collected from the set of distributed manufacturing network entities. The information technology system includes a control system configured to adjust the process parameters during an additive manufacturing process performed by at least one of the set of distributed manufacturing network entities.