289results about "Manufacturing recycling" patented technology

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.

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.

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 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.

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.

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.

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.

The invention relates to a process for recycling a particulate semi-crystalline polyamide, the initial particulate semi-crystalline polyamide having already been used in a layer-by-layer printing process, the process comprising: - a step of contacting the initial particulate semi-crystalline polyamide with water and at least one acid; - a step of heating the initial particulate semi-crystalline polyamide to a temperature above Tc – 20°C and below Tf, Tc denoting the crystallization temperature of the initial particulate semi-crystalline polyamide and Tf being the melting temperature of the initial particulate semi-crystalline polyamide, and - a step of collecting the treated particulate semi-crystalline polyamide, in which the treated particulate semi-crystalline polyamide has an inherent viscosity lower than the inherent viscosity of the initial particulate semi-crystalline polyamide.

The utility model discloses 3D printing remanufacturing equipment for damaged parts, and relates to the technical field of 3D printing, the 3D printing remanufacturing equipment comprises a shell, the top end of the shell is provided with a material inlet, a crushing mechanism is arranged in the shell, the bottom end of the shell is connected with a heating mechanism, and a material guide plate is fixedly arranged at the joint of the shell and the heating mechanism; the heating mechanism comprises a heating box, a heating base is arranged at the bottom of the heating box, an operation panel is fixedly installed on the front face of the heating base, and a stirring mechanism is installed on one side of the heating box. Through the arrangement of the heating mechanism, waste parts can enter the heating box after being smashed, waste materials in the heating box are heated and melted through the heating base, remanufacturing of subsequent materials is facilitated, and the problems that according to existing equipment, the materials need to be additionally heated and dissolved subsequently, and material recycling cannot be directly achieved are solved.

The utility model relates to a 3D printer feeding structure which comprises a collecting device, a processing device is arranged at the bottom of the collecting device, and a conveying device is arranged on the left side of the processing device. The collecting device comprises a collecting bin, a filtering assembly is arranged in the collecting bin, a material guiding channel is formed in the top of the collecting bin, the processing device comprises a box body, a vacuum bin is formed in the box body, a pressure sensor is arranged in the vacuum bin, and the conveying device comprises a shell. A motor is arranged at the bottom of the shell, and a spiral conveying rod rotationally connected with the inner top wall of the shell is fixedly installed at the position of an output shaft of the motor. According to the feeding structure of the 3D printer, through the arrangement of the collecting device, the processing device and the conveying device, powder scattered in the 3D printing process is effectively collected, processed and recycled, environmental pollution is reduced, and meanwhile resource waste is avoided.

The utility model provides a piston type bottom plate convenient for resin recovery and material supplement and a photocuring printer, which belong to the technical field of additive manufacturing and comprise a bottom plate body, a sealing element, a drainage cavity, a plurality of communicating holes, a liquid inlet hole and a liquid outlet hole, the bottom plate body is connected with the interior of the trough in a sliding fit mode, the lower end of the bottom plate body is supported on the lifting mechanism, and the sealing piece is installed on the outer side face of the bottom plate body and connected with the inner wall of the trough in a sealed mode. The drainage cavity is formed in the bottom plate body, and the bottom surface of the drainage cavity is an inclined surface; the communicating holes are formed in the upper end face of the bottom plate body and communicate with the drainage cavity. The liquid inlet hole and the liquid outlet hole are both formed in the bottom plate body and both communicated with the drainage cavity, and the liquid outlet hole corresponds to the lower end of the inclined face. According to the piston type bottom plate facilitating resin recovery and material supplement, the purpose of reducing the capacity of resin poured into a material groove is achieved, the effect of saving the resin is achieved, and the residual amount of the resin in the material groove is greatly reduced.

A method for removing powder from a three-dimensional workpiece produced by additive manufacturing is provided. The method includes mounting a build cylinder to a build cylinder fixture. The build cylinder includes a substrate for holding the three-dimensional workpiece and a sidewall releasably attached to the substrate. The build cylinder includes residual powder from the additive manufacturing process of the three-dimensional workpiece. The method further includes attaching a foil to the build cylinder fixture and / or the substrate. Additionally, an apparatus is provided for removing powder from a three-dimensional workpiece produced by additive manufacturing.

The invention belongs to the technical field of 3D printing, and discloses 3D printing environment-friendly equipment for recycling solid waste, which comprises a printing framework, a printing head assembly for extruding a molten material during printing is arranged on the printing framework, and an environment-friendly crushing bin assembly for recycling and crushing corner raw materials is arranged at the top of the rear part of the printing head assembly. A hot melting assembly for re-melting leftover materials is arranged at the bottom of the environment-friendly crushing bin assembly, the front end of the hot melting assembly is inserted into a machine head self-closing valve assembly, and a feeding pipe opening of the printer head assembly is subjected to self-closing plugging through the machine head self-closing valve assembly. The consumable leftover materials are conveyed into the hot melting barrel through rotation of the discharging spiral plate, the consumable leftover materials are input into the printer head assembly through the hot melting discharging pipe by the hot melting spiral plate, in the input process, the consumable leftover materials are molten again through the heating cover, and in this way, environment-friendly recycling of the consumable leftover materials is achieved.

The invention relates to an apparatus and method for producing an object by means of additive manufacturing. The apparatus comprises a process chamber for receiving a bath of material which can be solidified. The apparatus further comprises a structure for positioning the object in relation to the surface level of the bath of material. The apparatus also comprises a solidifying device for solidifying a layer of the material on the surface. Further, the apparatus comprises an extraction device fluidly connected to the process chamber and arranged for extracting material out of the process chamber. Moreover, the apparatus comprises blowing means for inducing a gaseous flow in the process chamber affecting the material to be extracted. The blowing means comprise a plurality of blow nozzles fluidly connected to the process chamber and directed in a plurality of different directions.

The invention relates to a powder delivery system for delivering a raw material powder to a device for producing a three-dimensional workpiece by irradiating a layer of the raw material powder by means of electromagnetic radiation or particle radiation. The powder delivery system comprises: a conveyor line designed to convey a flow of gas at least along a section and a flow of powder driven by the flow of gas at least along the section; and a conveying device designed to convey the gas flow through the conveying line. The powder delivery system further includes a first tank connected to the conveyor line for supplying the powder for the additive manufacturing process to the device; and at least one overflow vessel connected to the conveyor line for receiving excess powder accumulated during the additive manufacturing process. The powder conveying system further comprises a buffer container connected to the conveying line and used for supplying the powder to be screened to the screening equipment; and the screening equipment is used for screening the powder to be screened and distributing the screened powder. The powder delivery system includes an interface for an external tank connected to the conveyor line for introducing fresh or impure powder into the powder delivery system. The powder delivery system further comprises a controller for controlling the powder delivery system such that the system performs at least one of the following delivery processes: a. Delivering the screened powder into the first tank; b. Conveying the powder from the at least one overflow container into a buffer container; and c. Conveying the powder from the outer tank into the buffer container.

The invention relates to an apparatus for producing an object by means of additive manufacturing, comprising: - a process chamber for receiving a bath of material which can be solidified, wherein a surface level of the bath of material defines an object working area; - a support for positioning the object in relation to the surface level of the bath of material; - a plurality of solidifying devices, each arranged for solidifying a selective part of the material, wherein each of the plurality of solidifying devices is arranged for being able to operate in at least substantially the entire object working area; and - control means arranged for individually controlling the plurality of solidifying devices, wherein the control means are at least arranged for simultaneously operating the plurality of solidifying devices in different parts of the object working area and the invention reltes also to the corresponding method.

The present invention relates to a manufacturing plant FA which can be automated and is based on optical interaction, in particular a manufacturing plant for selective laser melting SLM, and an integratable filter device FV, in which through selective use of device elements a contamination of different particle residues within the manufacturing plant FA can be avoided and, in addition, a manufacturing atmosphere defined by a homogeneous process gas flow can be formed. Furthermore, the present invention relates to a manufacturing system for the automated manufacture of workpieces by irradiating a material to be processed which, with the aid of controlled adjustments of the process gas to be introduced into the manufacturing plant FA to the properties of the filter device FV, makes possible the aforementioned generation of the manufacturing atmosphere in particular irrespective of the used manufacturing materials.

Systems and methods for processing additive manufacturing objects are provided. In some embodiments, a system includes a cleaning station (1106) configured to agitate one or more additive manufacturing objects to remove at least some precursor material from the one or more additive manufacturing objects. The system may also include a brush assembly (1110) configured to brush the one or more additive manufacturing objects to remove at least some of the precursor material from the one or more additive manufacturing objects. The system may also include a conveyor configured to transport one or more additive manufacturing objects from the cleaning station to the brush assembly.