501results about "Manufacturing environment conditioning" patented technology

The utility model belongs to the technical field of additive manufacturing, and discloses an air outlet mechanism and additive manufacturing equipment. The air outlet mechanism comprises an air inlet assembly and a rectifying part, the air inlet assembly comprises an air inlet channel, one end of the air inlet channel is connected with an air source, and the other end of the air inlet channel is communicated with an air bellow; the rectifying part is arranged in the air inlet channel and is perpendicular to the air inlet direction in the air inlet channel, a first hole set and second hole sets located on the two sides of the first hole set are formed in the rectifying part, the hole diameter of the first hole set is larger than that of the second hole sets, and air entering the air inlet channel from the air source enters the air bellow after passing through the first hole set or the second hole sets. The air speed of the air close to the pipe wall of the air inlet channel is higher, the second hole set with the smaller hole diameter is arranged to rectify the part of the air, the air flowing through the rectifying piece is uniform in overall air speed, and therefore the quality of a printed piece is improved.

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 material changing mechanism and 3D printing system for a 3D printer are disclosed. The material changing mechanism includes: a support frame; a material guiding unit mounted on the support frame, the material guiding unit including multiple sub-material guiding tubes and material guiding ports communicating with the multiple sub-material guiding tubes, the material guiding ports being used to engage with the main feed tube of the 3D printer; and multiple material changing units mounted on the support frame. This allows for the automatic provision of multiple feed lines to the 3D printer according to printing needs and facilitates easy replacement of the feed tray.

A rocket motor comprising a non-permeable outer shell, an intra-wall channel between the non-permeable outer shell and an annular section, and a center chamber formed at least in part by a first propellant is disclosed. The first propellant is made up of a multi-grained fuel grain, and the center chamber is further formed by an annular section. The intra-wall channel is configured to permit combustion gases to flux between the non-permeable outer shell and the annular section. The annular section configured to permit combustion gases to flux through pores embedded within the annular section.

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.

The present invention relates to a method for air-drying solid, plasticizable material for use in a device for producing a three-dimensional object by means of additive manufacturing with material preparation, and to a corresponding device for producing the three-dimensional object from solid, plasticizable material with at least one additive manufacturing unit. A heated gaseous substance is introduced via a cavity (10) of a double-walled material feed nozzle (5) arranged between a material reservoir (2) for the solid material and a material feed zone (7) of a plasticizing unit (1) for plasticizing the solid material.The heated gaseous substance then emerges from the cavity (10) of the double wall (8, 9) of the material feed nozzle (5) near the material feed zone (7) and rises through the material feed nozzle (5) to the material reservoir (2), flowing around the solid material.

A Z-axis leveling system of an additive manufacturing system, the Z-axis leveling system comprising a base, a build platform, and a vertical actuator mechanically connected to the base. The vertical actuator further comprises a height adjuster platform, at least one vertical guide disposed on the height adjuster platform, a motorized transmission unit disposed on the height adjuster platform and connected to a vertical post platform, at least one vertical post mechanically coupled to the vertical post platform and a base platform connected to the base.

The present disclosure provides three-dimensional (3D) printing processes, apparatuses, devices, software, and systems for controlling and / or safely treating debris.

The invention relates to an additive manufacturing machine (4) comprising:-a manufacturing enclosure (49) equipped with a glove box (251):-a powder transport circuit (42):-a power source configured to melt the powder in the manufacturing zone (63); and-a collection circuit (57) configured to collect powder from the transport circuit (42) and transport the collected powder to an outlet of the collection circuit (57), the outlet of the collection circuit being located above a reception zone (281), the reception zone (281) being different from the manufacturing zone (63) and located opposite the outlet of the collection circuit (57), and the gloves (251) being configured to handle an object located in the enclosure (49) and to reach the reception zone (281).

The utility model relates to an air purification module, three-dimensional printing equipment and a three-dimensional printing system. The air purification module comprises an air inlet channel, a carrier unit, an illumination unit and an exhaust channel, and the carrier unit is loaded with a titanium dioxide photocatalyst; the illumination unit corresponds to the carrier unit and is used for emitting ultraviolet light; the exhaust channel communicates with the air inlet channel to form an airflow channel, the carrier unit and the illumination unit are both arranged in the airflow channel, and the airflow channel is used for communicating with a printing space where the three-dimensional printing equipment is located. According to the air purification module, the ultraviolet light emitted by the illumination unit and the titanium dioxide photocatalyst in the carrier unit are subjected to photochemical reaction, volatile organic compounds can be purified, meanwhile, due to the fact that the titanium dioxide photocatalyst in the carrier unit cannot be consumed, frequent replacement of the carrier unit can be avoided, and the service life of the air purification module is prolonged. The replacement frequency of the carrier unit and the photocatalyst can be reduced while the purification effect of the air purification module is improved.

The invention relates to an additive manufacturing device (20) comprising:-a package (7) configured to contain a powder (6) and to generate an exhaust gas flow (15) against the powder (6),-a laser source (1) configured to generate a laser beam and to expose the powder (6) to the laser beam passing through a window (2) of the package (7), -a blowing nozzle (3) and a suction nozzle (8) configured to generate a protective gas flow (18) in the enclosure (7) against the window (2).

A method of printing a three-dimensional object (90) including: providing a 3D inkjet printing system including: a printing chamber (162) accommodating a printing unit (120) having an inkjet printing head and a curing subunit (124), and a supply unit (130) including a modeling material and a support material; and printing the 3D object (90) in multiple consecutive layers according to a predefined printing sequence, wherein for at least one of the multiple consecutive layers the predefined printing sequence for the same respective layer includes depositing and curing the modeling material and the support material separately from each other either in time or in space. Some embodiments may include controlling a concentration of oxygen in the printing chamber (162) to be in a predefined oxygen concentration range. Some embodiments may include controlling a temperature in the printing chamber (162) to be in a predefined temperature range.

A Hall effect thruster is provided having one or more components fabricated using additive manufacturing techniques. Additive manufacturing can be used to fabricate the magnetic flux guide and the discharge channel of the thruster. In addition, the propellant distributor for the thruster can be incorporated into the base of the discharge channel. The magnetic flux guide can be fabricated with a filament impregnated with a magnetic material and the discharge channel can be fabricated with a filament impregnated with a ceramic material. Permanent magnets can be positioned in the magnetic flux guide at locations that surround the discharge channel.

We describe a system for use in an apparatus for producing a three-dimensional workpiece using an additive layer manufacturing technique, the system comprising: an irradiation unit configured to selectively irradiate an irradiation plane with an irradiation beam, and a control unit coupled to the irradiation unit and configured to control the irradiation unit to modulate, as a function of a local process parameter when producing the three-dimensional workpiece, an irradiation beam property of the irradiation beam.

Device for separating pollutants and / or particles from a process exhaust gas stream, in which a process raw gas flows by means of a compressor towards at least one filter element and through the at least one filter element; wherein the at least one filter element is arranged in a chamber and a metering device for a powdered additive is arranged upstream of the at least one filter element in the flow direction of the process raw gas, with which the additive can be supplied to the process raw gas. characterized in that wherein a storage container (A) for the powdered additive is arranged on the dosing device such that the powdered additive is dispensed onto a surface of at least one sieve (D) and that at least one sieve (D) can be set into vibration by means of a device (B) and / or vibrations can be coupled into the sieve (D) that act on the sieve (D); wherein characterized by the fact that The mesh size of the at least one sieve (D) and the particle size of the powdered additive are selected such that particles of the powdered additive only pass through the sieve (D) if the at least one sieve (D) has been set into vibration or the sieve (D) is vibrating and particles that have passed through the at least one sieve (D) can be fed into the process raw gas stream and are deposited as part of a filter cake on the at least one filter element, wherein two sieves (D) are arranged decoupled from each other so that independent, unhindered vibration of one of the two sieves (D) or both sieves (D) is possible.

The utility model discloses a material conveying and spraying device for 3D printing, and belongs to the technical field of material conveying for 3D printing, the material conveying and spraying device for 3D printing comprises a discharging bin and a feeding port formed in the side wall of the discharging bin, the bottom of the discharging bin is fixedly connected with a connector, the connector is detachably connected with a nozzle, and the nozzle is fixedly connected with the discharging bin. A first baffle and a second baffle which are of an annular structure are sequentially and fixedly connected to the axial position of the inner side of the nozzle from top to bottom, a hard spring is installed on the upper surface of the second baffle, and the top end of the hard spring is connected with a sealing ball abutting against a through hole in the first baffle. Guide rods are symmetrically installed on the outer wall of the sealing ball, guide grooves in sliding connection with the ends of the guide rods are formed in the inner wall of the nozzle, a sealing cover is installed on the top of the discharging bin, an air inlet pipe is installed on the sealing cover, it is guaranteed that the pressure of material spraying is consistent front and back, and then the printing effect is guaranteed.

The present invention relates to a method for producing a composite body (2) from at least two sub-bodies (1), wherein at least one of the sub-bodies (1) is produced by an additive manufacturing process, and wherein the at least two sub-bodies (1) are exposed in a chamber (6) to a solvent atmosphere (7) so that a surface of the sub-bodies (1) is smoothed. The invention also relates to a composite body (2) produced according to the method. For the method, it is proposed that the at least two sub-bodies (1) are positioned in the chamber (6) such that they touch at at least one joining surface (5), and thus a metallurgical bond is formed between the at least two sub-bodies (1) at the at least one joining surface (5) by the solvent atmosphere (7).

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

Techniques for preventing contamination of an electronic component via gas flow are described. According to some aspects, an electronic component module is configured to provide gas flow past and away from an electronic component such that thermal and material exchange is limited between the electronic component module and a coupled system. In some embodiments, the coupled system may be a portion of an additive fabrication device. As a result, a reduced number of contaminants may adhere to the electronic component, extending its lifespan and reducing maintenance.

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

A modular system (1) insertable into a closed environment (20), such as a container containing a fluid, comprises: a base unit (2) comprising a working surface (3) movable along a working plane; an upright structure (9) restricted to one side of the base unit (2) and extending from the base unit (2); a support head (10) for supporting a tool or accessory; the upright structure (9) comprises, in sequence: guide means (11) for guiding the support head (10) in a direction (Z) transverse to the working plane; sliding means (14) for sliding the support head (10) along the guide means (11); at least one motor (M) for the sliding device (14); a box-like housing (15) provided with a sealing gasket for accommodating the motor (M), the modular system (1) further comprising at least one tubular body (21) for cables of the motor (M).

The present invention relates to an additive manufacturing apparatus (40), which comprises a chamber (11, 21), a driving device, a molding chamber (43), and a powder laying device, the chamber (11, 21) having a support table (13b, 24) arranged in a sealed manner in the chamber (11, 21), a quick release assembly arranged at the bottom of the support table (13b, 24) to be connected to the driving device so that the driving device can be quickly connected to or disconnected from the support table (13b, 24), and the chamber A first part (14a) of the assembly transfer structure is arranged on (11, 21), which cooperates with a second part (14b) of the assembly transfer structure arranged on the additive manufacturing device (40) to realize the rapid transfer of the chambers (11, 21) in the additive manufacturing device (40). Thus, after additive manufacturing is completed, the post-processing of the molding table (13) can be quickly performed and the chambers (11, 21) can be quickly replaced, significantly reducing the time required for maintenance and reducing potential risks in the maintenance process.

The powder supply device (2) comprises a powder feeding part (21), and the powder feeding part (21) is provided with at least one material opening (216) connected with a powder supply connector; the dispersing part (22) is connected with the powder feeding part (21), and a uniform flow guide belt (222) for uniformly conveying powder flow is arranged in the dispersing part (22); the vibration part (23) is arranged at one end of the powder feeding part (21) and is used for providing vibration force acting on the powder feeding part (21), so that the powder feeding part (21) uniformly conveys powder flow through the dispersion part (22); and the material level detection part (24) is at least partially inserted into the powder feeding part (21) and is used for detecting the amount of powder in the powder feeding part (21). Under the action of vibration, a layer of uniform powder flow can be formed in the dispersing part (22), and powder is uniformly conveyed to a designated position, so that continuous and stable conveying of powder materials is realized, and the vibration frequency and amplitude can be adjusted according to different material properties to achieve a better conveying effect.

A method of manufacturing UHMWPE structures incorporating graphene comprising the steps of: i. providing a build chamber having a vertically moveable platform defining a build plate upon which a powder material may be sintered layer by layer in a SLS 3D printing process; ii. pre-heating the build chamber; iii. reducing the pressure within the build chamber and / or suppling an inert gas into the build chamber; iv. depositing a layer of UHMWPE powder onto the build plate to define a print bed; v. exposing selected regions of said layer of UHMWPE powder to at least one first laser source to create sintered regions of said layer of UHMWPE powder; vi. exposing selected regions of said sintered regions of UHMWPE powder to at least one second laser source resulting in the formation of graphene derived from said UHMWPE powder; vii. lowering the platform one step corresponding to the thickness of said layer of UHMWPE powder and depositing a further layer of UHMWPE powder thereon; viii. repeating steps (v) to (vii) until the structure is completed.

The invention provides a curing system, a printer and a second curing container, and the curing system comprises a first curing container which comprises a shell with a first opening and a door configured to open and close the first opening, and the first curing container is internally provided with a curing light source and a heating assembly; the second curing container can be put into the first curing container through the first opening and can be taken out of the first curing container, the second curing container is provided with a cavity configured to contain a printed piece, and the second curing container is provided with an air inlet and an air outlet which are communicated with the cavity; and at least part, facing the curing light source, of the second curing container is configured to be light-transmitting. The second curing container can be placed in the first curing container and taken out of the first curing container, the gas inlet is connected with a gas source, at least one of nitrogen or carbon dioxide or inert gas is filled, and the aerobic inhibition phenomenon caused by curing of the second curing container in the aerobic environment is avoided.

The invention relates to a method for controlling irradiation in a manufacturing process for the additive manufacturing of objects (2), wherein in a construction field (8) building material is solidified layer by layer in the form of object layers (O), corresponding to cross-sections of the objects (2) to be manufactured, by irradiating the building material, the method comprising the steps of: - defining a plurality of shape regions corresponding to one another in shape and / or size in the object layers (O) to be solidified, - selecting a number of reference regions (R) from the plurality of shape regions, wherein at least the remaining shape regions are defined as correction regions (K), - defining a number of target heat maps (S) which specify a desired heat distribution of correction regions (K) or a number of groups of correction regions (K),- Solidifying a number of selected reference areas (R) and recording spatially resolved thermal data (W) of the number of reference areas (R) during their solidification; - Generating a number of correction factor modules (F) for the correction areas (K) from the thermal data (W) and the target thermal maps (S), wherein each correction factor module (F) specifies spatially resolved correction factors for irradiation values ​​or spatially resolved corrected irradiation values, and a correction factor module (F) is assigned to each correction area (K); - Solidifying at least the correction areas (K) based on the correction factor module (F) assigned to them. The invention further comprises a control device, a control unit, and a manufacturing device.

The invention relates to an additive manufacturing machine (4) comprising: - a manufacturing enclosure (49) equipped with a glove box (251); - a powder transport circuit (42); - a power source configured to melt the powder in the manufacturing zone (63); and - a collection circuit (57) configured to collect powder from the transport circuit (42) and transport the collected powder to an outlet of the collection circuit (57), the outlet of the collection circuit being located above a reception zone (281), the reception zone (281) being different from the manufacturing zone (63) and located opposite the outlet of the collection circuit (57), and the gloves (251) being configured to handle an object located in the enclosure (49) and to reach the reception zone (281).