465results about "Manufacturing recycling" patented technology

The invention provides three-dimensional printing equipment and a three-dimensional printing method. The three-dimensional printing equipment comprises a light-permeable material containing mechanism and a printing mechanism, wherein the light-permeable material containing mechanism is provided with a bearing area configured to bear a printing material; a feeding mechanism including a first channel configured to supply a first material and a second channel configured to supply a second material different from the first material; the driving mechanism is configured to move at least one of the material containing mechanism and the material supply mechanism; an optical mechanism configured to project light to the bearing area based on the pattern to cure the first material and the second material; the forming platform mechanism is configured to adhere to the curing layer and can carry the adhered curing layer to be separated from the material containing mechanism, and the curing layer comprises at least one of a part formed by the first material, a part formed by the second material and a part formed by the mixture.

The invention provides a three-dimensional printing method and three-dimensional printing equipment. The three-dimensional printing method comprises the steps that a first material is supplied to a bearing area of a light-permeable material containing mechanism of the three-dimensional printing equipment through a first channel of a material supply mechanism of the three-dimensional printing equipment; a second material different from the first material is supplied to the bearing area of the material containing mechanism through a second channel of the material supply mechanism; a forming platform mechanism of the three-dimensional printing equipment is moved, so that the forming platform mechanism makes contact with the first material and the second material in the bearing area; light rays are projected to the bearing area through an optical mechanism of the three-dimensional printing equipment, so that the first material and the second material are cured, and a curing layer adhering to the forming platform mechanism is formed; and the forming platform mechanism is moved away from the material containing mechanism, so that the curing layer is separated from the material containing mechanism.

The application provides a post-processing device for 3D printing objects, a 3D printing system and a method, the post-processing device comprising a receiving mechanism for carrying a 3D printing object with excess printing material; a movable mechanism for changing the dripping position of the 3D printing object to make the excess printing material drip from the 3D printing object; wherein the 3D printing object has at least two different inclination angles during the dripping position change. The application changes the dripping position of the 3D printing object, changes the inclination angle of the 3D printing object, separates the excess resin material on the 3D printing object, and improves the efficiency of separating the excess resin.

The present invention includes methods for reducing photoexcitation of a photoswitchable photoinitiator in volumetric printing including a volume of a photohardenable composition at locations in the volume at which intersection of two wavelengths does not occur; methods of three-dimensional (3D) printing including dual-wavelength photoexcitation of a photohardenable composition included in a volume, the method including photoexcitation by a modified or controllably-sized light sheet including a first wavelength and an optical projection including a second wavelength; and methods for extending the reuse-printing lifetime of a photohardenable composition including a photoswitchable photoinitiator. Preferably the photohardenable composition includes the dual-wavelength photoinitiator and a photohardenable resin component. The present invention also includes a photohardenable composition including a photoswitchable photoinitiator with an improved reuse-printing lifetime.

A system includes a powder reuse system (PRS) executable via a processor and configured to receive one or more inputs for a build of a first machine component in a sintering system. The PRS is further configured to retrieve a model configured to model a reuse of a sintering powder, and to derive a time during which a surplus unsintered powder left after printing the machine component via the sintering system using the sintering powder may be reused to build a second machine component by applying the one or more inputs to the model.

The application describes a machine tool adapted and arranged to carry out removal and addition of material on a work piece located in a work station, the machine having a first head arranged to remove material from the work piece and at least a second head arranged to process the work piece, each of the first and second heads being arranged to be moveable in at least two axes and preferably in 3, 4 or 5 axes and wherein the machine is arranged to control an environment of the work station. The work station is at least partially sealable. The machine has a clean side and a dirty side. Novel processing heads particularly adapted for use in the new machine tool are disclosed. These may also be retrofitted to CNC machines. The novel heads include heads adapted to carry out two processes simultaneously. Heads adapted to carry out heat and pressure treatment are also disclosed. Use of the processing heads to carry out analysis in manufacturing steps is disclosed as is the provision and use of heads that can carry out analysis as well as processing.

A powder removal apparatus includes an extraction housing comprising a sidewall that is sized and configured to extend around a powder bed of a build module and a top wall that is sized and configured to extend between opposite sides of the sidewall and over the powder bed. The sidewall and top wall are configured to form a chamber portion of a turbulence chamber. The top wall has a vacuum exit opening that is configured to fluidly connect to a vacuum source. The sidewall has a plurality of sidewall inlet flow channels that extend from an inlet opening at an exterior side of the sidewall to an outlet opening at an interior side of the sidewall. A side exit channel is configured to extend along the top wall from a collector opening in communication with the chamber portion toward the vacuum exit opening.

The invention relates to a powder bed fusion additive manufacturing system (1) comprising a build chamber (2) extending along a vertical axis (Z) and a removable container (10) which can be inserted into the build chamber (2) in a manufacturing configuration and removed from the build chamber (2) in a powder removal configuration, the removable container (10) comprises a side wall (20) extending along a vertical axis (Z) and a bottom wall (30) movable within the side wall (20) along the vertical axis (Z), the bottom wall (30) comprising a perforated first wall (31) having a first aperture (33), the first aperture (33) being closed in a manufacturing configuration and opened in a depowdering configuration.

An automated de-powdering system comprises a sleeve alignable with at least a portion of a build chamber and at least one actuator actuatable with respect to a build plate to move at least a portion of an additive manufacturing build out of the build chamber and into the sleeve. At least one support assembly is couplable to the sleeve and includes at least one support member insertable through the sleeve and into the additive manufacturing build. At least one agitation mechanism is couplable to at least one of the at least one support assembly or the sleeve and is actuatable to at least partially convey the powder build material away from at least one object of the additive manufacturing build. The support member is positioned to support the object in an absence of the powder build material around the object.

An automated de-powdering system includes a build box defined by a build plate and a plurality of sidewalls where the build plate and the plurality of sidewalls define a build chamber configured to contain an additive manufacturing build comprising one or more objects disposed within a powder build material. The build plate includes at least one passageway extending from a top side to ae bottom side of the build plate. The passageway is defined by at least one passageway sidewall having at least one nozzle to direct a fluid into the build chamber to separate at least a portion of the powder build material from the one or more objects. At least one fluid source is fluidically coupled to the at least one nozzle and is actuatable to supply the fluid to the at least one nozzle.

The invention relates to the technical field of additive manufacturing equipment, and discloses a double-nozzle switching structure for multi-material 3D printing, the double-nozzle switching structure comprises a switching lifting assembly, the switching lifting assembly comprises a mounting plate, the inner side of the mounting plate is rotatably sleeved with a motorized shaft, the bottom of the motorized shaft is fixedly connected with a connecting main body, and the connecting main body is fixedly connected with a nozzle; the spray head assembly comprises a discharging assembly, the bottom of the connecting body is fixedly connected with a delay driving assembly, the bottom of the delay driving assembly is rotationally sleeved with a collecting tank, the bottom end of the collecting tank is fixedly sleeved with a chassis, and the edge of the top of the chassis is fixedly connected with a material bearing assembly. The connecting body and the motorized shaft are in linkage to achieve 180-degree switching of the spray head, the discharging assembly blows out spray head materials, the material bearing assembly and the collecting tank cooperate to recycle the materials, the material bearing assembly comprises a semicircular pipeline, and the problems that when the spray head is switched to replace the materials, the spray head needs to be emptied, time is consumed, and consumables are wasted are solved.

The invention relates to a graphite powder film coating method for 3D printing, which comprises the following steps: graphite powder is placed in a sand mixing tank, a film coating solution is added for stirring, and the mass ratio of the graphite powder to the film coating solution is (99-97): (1-3); carrying out drying treatment on the graphite powder added with the film coating solution; and screening treatment is conducted on the dried graphite powder through screening equipment. The invention further relates to a 3D printing method. According to the scheme, the problems that graphite powder is poor in flowability and low in powder recycling rate in the forming process of an existing binder spraying 3D technology can be solved.

The powder recovery device with the screening function for the 3D printing equipment comprises a screening box, a cylindrical groove is formed in the screening box, a feeding hopper is fixedly connected to the left side of the screening box, and the bottom end of the feeding hopper penetrates through the screening box and extends into the cylindrical groove; a driving motor is fixedly mounted on the front face of the screening box, and an output shaft of the driving motor penetrates through the screening box and extends into the cylindrical groove. According to the metal powder screening device, powder entering the cylindrical groove is screened through clockwise rotation of the multiple sets of net plates in the cylindrical groove, metal powder can penetrate through the net plates to be discharged through the powder discharging pipe, and waste residues in the powder can be carried by the net plates to reach the waste residue discharging pipe to be discharged out of the cylindrical groove to be separated; and then the powder is separated again through a sieve plate, waste residues are discharged, dust generated by the powder is adsorbed through a purification assembly, and therefore automatic screening of the powder is achieved, blockage is not prone to being generated, and continuous operation can be achieved.

Embodiments of the present disclosure provide an apparatus, a system, and a method. The apparatus is configured to depowder and extract one or more printed parts prepared by a three-dimensional (3D) printer. The apparatus includes an elevated frame, a perforated plate, a lifting-lowering mechanism, a depowdering unit, and at least one gripper. The elevated frame is removably secured to an open top of a first container and configured to transversely receive fully raised at least one 3D printed layer and partially raised at least one powder layer. Upon lifting the elevated frame along with the perforated plate, the depowdering unit is configured to depowder the at least one powder layer and powder in between the one or more 3D printed parts. The at least one gripper is configured to automatically extract the one or more 3D printed parts.

A powder removal apparatus includes an extraction housing comprising a sidewall that is sized and configured to extend around a powder bed of a build module and a top wall that is sized and configured to extend between opposite sides of the sidewall and over the powder bed. The sidewall and top wall are configured to form a chamber portion of a turbulence chamber. The top wall has a vacuum exit opening that is configured to fluidly connect to a vacuum source. The sidewall has a plurality of sidewall inlet flow channels that extend from an inlet opening at an exterior side of the sidewall to an outlet opening at an interior side of the sidewall. A side exit channel is configured to extend along the top wall from a collector opening in communication with the chamber portion toward the vacuum exit opening.

An automated de-powdering system comprises a sleeve alignable with at least a portion of a build chamber and at least one actuator actuatable with respect to a build plate to move at least a portion of an additive manufacturing build out of the build chamber and into the sleeve. At least one support assembly is couplable to the sleeve and includes at least one support member insertable through the sleeve and into the additive manufacturing build. At least one agitation mechanism is couplable to at least one of the at least one support assembly or the sleeve and is actuatable to at least partially convey the powder build material away from at least one object of the additive manufacturing build. The support member is positioned to support the object in an absence of the powder build material around the object.

A reclamation system for an additive manufacturing apparatus can include a collection structure configured to remove at least a portion of the resin from a foil. A containment vessel can be configured to retain the resin removed from the foil. A drain can direct the resin from the containment vessel to a reservoir.

The invention discloses multi-laser 3D printing equipment. The multi-laser 3D printing equipment comprises an additive forming bin; a forming assembly is arranged above the additive forming bin, and the additive forming bin can be connected with the forming assembly in a sealed mode. The additive forming bin is arranged on the conveying assembly and can slide on the conveying assembly. The conveying assembly is arranged on the rack; a powder cleaning assembly is arranged on one side of the additive forming bin; the additive forming bin comprises a forming bin body and a forming assembly arranged in the forming bin body, the forming assembly is connected with the lifting assembly, the lifting assembly can drive the forming assembly to ascend and descend in the forming bin body, and the forming bin body is connected with the lifting assembly in a sealed mode. The forming bin has the beneficial effects that the sealing performance of the forming bin body can be improved due to the fact that the forming bin body is connected with the lifting assembly in a sealed mode, only the forming bin body needs to be subjected to gas washing during gas washing, the space occupied by the lifting assembly is reduced, particles generated by sintering are not prone to entering the connecting part of the forming bin body and the lifting assembly, and the sintering efficiency is improved. And finally, the service life of the lifting assembly is prolonged.

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 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 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.

An automated de-powdering system comprises a sleeve alignable with a build box where the build box includes one or more sidewalls and a build plate. The one or more sidewalls and the build plate define a build chamber configured to contain an additive manufacturing build where the additive manufacturing build includes one or more objects disposed within a powder build material. At least one actuator is actuatable to move the additive manufacturing build out of the build box and into the sleeve. At least one mechanism is actuatable to separate at least a portion of the powder build material from the one or more objects.

The technology described herein provides methods and devices to manage process flows and support systems for 3D printing. The technology provides methods and devices for separating contaminants in 3D printing fluids. The technology provides methods and devices for aligning projectors with six degrees of freedom in 3D printers. The technology provides methods and devices to cause the flow of an immiscible liquid under an interface with liquid resin in a 3D printer liquid vat to be laminar, of proper height, and of appropriate flow rate to remove heat. The technology provides methods and devices to provide feedback loops for a three-dimensional printing process that uses a flow of oil under a liquid resin to control heat in the printing process.

The present application relates to a kind of color 3D printing device and use method of supporting waste online synchronous recovery.The 3D printing device includes device frame, and color printing nozzle can be moved along front, back, left and right on device frame.Model printing base station can be moved along up and down direction on device frame, and waste synchronous recovery mechanism is arranged on device frame, and waste synchronous recovery mechanism includes waste printing base station, first roller, second roller and roller drive motor are arranged on waste printing base station, and conveyor belt is arranged on first roller and second roller.Model chuck for recycling filament waste is arranged on device frame behind conveyor belt, and chuck drive motor is arranged on device frame.Problem of recycling and utilizing waste produced by color FDM printing is effectively solved, and deficiency of current waste recycling and reusing equipment is made up, more suitable for waste recovery of consumer-grade color 3D printing application scene, and material utilization is improved.

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.

An automated de-powdering system comprises a separation station having a support structure configured to support a build box containing an additive manufacturing build. An actuator is configured to move at least a portion of the additive manufacturing build out of the build box and into a sleeve. A separation mechanism is configured to separate the portion of the additive manufacturing within the sleeve from a remainder of the additive manufacturing build. A de-powdering station includes a conveyor configured to convey the separated portion of the build away from the remaining portion of the build, and an agitation mechanism is configured to separate unbound powder build material from one or more objects of the portion while the portion is being conveyed by the conveyor.

A resource management system (39) manages a supply of resource material and / or resource items to a plurality of at least two additive manufacturing machines (3) for additive manufacturing. The resource management system (39) includes a control unit (41) that is configured to receive a signal indicative of a demand for resource material and / or resource items of any of the additive manufacturing machines (3). The control unit (41) is configured to schedule the supply of demanded resource material and / or resource items according to a predetermined prioritization scheme for resolving demand conflicts.

A machine that enables the additive manufacturing of parts making use of high viscosity resins and comprises a structure; a conveying module, with a movable support and a displacement mechanism, to house and move the printing surface in a vertical direction; a light source, at least one reservoir of material; a material supply module, connected to the reservoir of material and configured for applying a layer of printing material on a conveyor substrate, which conveys the layer of printing material from the material supply module to the printing surface, wherein it is cured; and a fastening system, to fasten and move the conveyor substrate.

To provide a carbon fiber reinforced thermoplastic resin strand that can be stably produced using recycled carbon fiber obtained by a method of heat treatment and decomposition and a thermoplastic resin as raw materials, and is particularly suitable for producing a three-dimensional object with excellent mechanical properties.SOLUTION: There is provided a carbon fiber reinforced thermoplastic resin strand formed of blended yarn containing recycled carbon fiber and thermoplastic resin fiber, wherein the recycled carbon fiber has a single fiber tensile strength of 3.0 GPa or more and a Weibull shape factor of 6.0 or more, and the recycled carbon fiber contains a residual carbon component, and a content of the residual carbon component is more than 0 wt.% and 5.0 wt.% or less based on an amount of the recycled carbon fiber.SELECTED DRAWING: None