605results about "Manufacturing recycling" patented technology

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

The invention discloses eyelash cutting equipment and a manufacturing process, and relates to the field of eyelash processing technology.The eyelash cutting equipment comprises a rack, a printing platform, a laser printer and a feeding wheel, the feeding wheel, the printing platform and the laser printer are all located at the upper end of the rack, and the printing platform is located between the laser printer and the rack; a shaping device is arranged at the upper end of the rack and used for shaping materials, a separating device is arranged at the upper end of the rack and used for separating the shaped materials, a supporting plate is arranged on the side, away from the feeding wheel, of the printing platform, the supporting plate is arranged in the length direction of the printing platform, and a residual piece collecting roll and a base plate collecting roll are rotationally connected to the supporting plate. The residual piece receiving roll and the base plate receiving roll are both arranged perpendicular to the supporting plate, the residual piece receiving roll is located between the base plate receiving roll and the feeding wheel, the outer sides of the residual piece receiving roll and the base plate receiving roll are provided with adhesive tapes easy to tear in the axial direction, and a driving device is arranged on the supporting plate. The eyelash production device has the effect of improving the eyelash production efficiency.

The invention relates to the technical field of 3D printing, in particular to an industrial mold 3D printer based on plastic powder slurry. The printer comprises a rack, a movable frame and a printer body, and the printer body comprises a body, a flow guide pipe, a first heater, a cooling fan, a quantity adjusting assembly and a back suction assembly. According to the device, when the quantity adjusting rod drives the quantity adjusting head to be downwards inserted into the communicating position of the heating cavity and the nozzle to plug the nozzle, the quantity adjusting rod further drives the piston plate to move in the suction cavity, the piston plate firstly moves rightwards to expand the containing volume of the suction cavity to form negative pressure, and then material consumables left in the end of the nozzle are sucked into the suction cavity through the suction pipe; and then the piston plate moves leftwards to reset in the suction cavity to press the material consumables in the suction cavity into the flow dividing cavity through the one-way valve, so that the phenomenon that part of the material consumables left in the spraying end part of the nozzle flow out of the drawn wire to form overflow on the surface of the industrial mold is avoided, and the printing processing quality of the industrial mold is ensured.

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

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 movable unit, a lifting-lowering mechanism, a depowdering unit, and at least one gripper. The elevated frame is configured to receive fully raised at least one 3D printed layer and partially raised at least one powder layer. The movable unit is engaged to a front end portion of the perforated plate and adapted to move longitudinally along with the perforated plate, within the elevated frame. A connecting member of the movable unit is adapted to be positioned in front of the front end portion. At least a portion of the connecting member transversely slides within the partially raised at least one powder layer.

A method for forming an abrasive article via an additive manufacturing technique including forming a layer of powder material comprising a precursor bond material and abrasive particles, compacting at least a portion of the layer to form a compacted layer, binding at least a portion of the compacted layer, and repeating the steps of forming, compacting, and binding to form a green body abrasive article.

Systems and methods for manufacturing objects are provided herein. In some embodiments, a method for producing an additively manufactured object includes applying energy to a curable material according to a set of print parameters to form a cured material layer on a build platform or on an object on the build platform. The method can also include conveying remaining material away from the build platform. The method can further include detecting, via one or more sensors, that the remaining material includes a portion of the cured material layer that has separated from the build platform or from the object. The method can subsequently include determining an adjusted set of print parameters configured to improve adhesion of cured material to the build platform or to the object.

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.

Additive manufacturing systems and associated methods are disclosed herein. In some embodiments, the additive manufacturing includes a build chamber that has a central portion and a peripheral portion, a support platform positioned in the central portion and a recoater arm movable in a lateral direction over the support platform. While moving, the recoater arm spreads a powder over the central portion during a build. The additive manufacturing system also includes a powder recycling system positioned to redirect excess amounts of the powder during the build. For example, the powder recycling system can include a powder receptacle positioned the second region of the peripheral portion and a recycling element positioned at least partially in the powder receptacle. The recycling element is movable between a first position abutting an overflow space in the powder receptacle to receive the excess powder and a second position closer to the central portion.

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.

The invention relates to the technical field of 3D printers, and discloses a photocuring 3D printer which comprises a case, a cover plate arranged on the case, a control motor arranged on the side wall of the case, a sliding rail arranged on the side wall of the case, a bearing block arranged in the sliding rail in a sliding mode and a reciprocating lead screw arranged at the driving end of the control motor. The bearing block is arranged on the machine box, the ball nut is arranged on the bearing block, the light curing groove is formed in the upper end of the machine box, the feeding unit is arranged in the machine box, and the feeding unit comprises a feeding part and a recycling part which are arranged in the machine box; through the arrangement of the feeding part, when an operator needs to print, feeding is automatically completed, high-sensitivity resin is stirred in the feeding process, it is guaranteed that the high-sensitivity resin enters the photocuring groove in a uniform state, the printing quality is guaranteed, and after printing is completed, the remaining high-sensitivity resin is automatically recycled; and the deterioration possibility of the high-sensitivity resin caused by incapability of timely recovery by an operator is prevented.

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 belongs to the technical field of plastic recovery, and particularly relates to a 3D printing waste recovery device which comprises a cyclic crushing mechanism, a rolling mechanism, a shredding mechanism and a main base. According to the device, the printing waste is circularly crushed by arranging the cyclic crushing mechanism, crushed particles are screened by utilizing an opening of the screening rotating wheel, finer waste particles are selected, the fine particles are heated more uniformly and melted faster, the energy consumption is reduced, the production time is shortened, and the production efficiency is improved. The problems that an existing recycling device is large in size and not suitable for recycling a small amount of waste are solved. The coiling mechanism is arranged, waste materials are firstly made into pipe materials, then the pipe materials are shredded through the shredding mechanism, on one hand, wire breakage can be avoided during discharging when the pipe materials are made, on the other hand, later storage management is facilitated after the pipe materials are made, a small amount of waste materials can be conveniently recycled, and the pipe materials can be cut into wire rods of different sizes through the shredding mechanism; and the wire rods with different sizes are suitable for various application scenes and can be more flexibly utilized and recycled.

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.