760results about "Manufacturing auxillary operations" patented technology

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

The invention provides a device for multi-material photo-curing additive manufacturing, and belongs to the technical field of photo-curing additive manufacturing, the device comprises a workbench, the workbench is provided with a lifting column and a printing platform, the printing platform is connected with the lifting column, the lifting column can drive the printing platform to ascend and descend, and the printing platform is used for bearing a printing blank; the number of the printing cleaning assemblies is at least two, each printing cleaning assembly comprises a slurry table and a cleaning table, each slurry table is provided with a slurry groove, and each cleaning table is provided with a cleaning groove; all the printing cleaning assemblies are connected with the moving assembly, and the moving assembly is used for driving all the printing cleaning assemblies to move and enabling the printing platform to be located above any one of the slurry tables or above any one of the cleaning tables. The photocuring additive manufacturing device has the beneficial effects that printing of multiple materials can be achieved through the same photocuring additive manufacturing device, and meanwhile interface pollution of dissimilar materials is prevented.

A robotic construction system for use in constructing a structure, the construction system including a base, a boom extending from the base, an articulated delivery head attached proximate an end of the boom, the delivery head including a nozzle configured to deliver a construction material and a controller configured to control movement of the boom and the delivery head to thereby move the nozzle and deliver construction material, wherein the boom moves with a slower dynamic response over larger distances and the delivery head provides a faster dynamic response over smaller distances.

A dual-switch 3D print head having synergistic printing of resin and continuous fibers, the print head comprising a main frame (1), wherein a resin head extrusion mechanism (3) is provided on the main frame (1); the main frame (1) is connected to a continuous fiber printing mechanism (6) by means of a dual-nozzle switching mechanism (2); a continuous fiber cutting mechanism (7) and a wire feeding and clamping coordination mechanism (63) are provided on the continuous fiber printing mechanism (6); the continuous fiber printing mechanism (6) comprises a continuous fiber printing mounting plate (61); a fiber clamping mounting base (631) is provided on one side of the top of the continuous fiber printing mounting plate (61); a fiber clamping actuator is mounted on the fiber clamping mounting base (631); a clamping connecting rod (635) is movably connected to the end of the fiber clamping actuator; the other end of the clamping connecting rod (635) is connected to a fiber guide wheel (633); a wire feeding gear (634) is provided beside the fiber guide wheel (633); and the wire feeding gear (634) is mounted on the continuous fiber printing mounting plate (61). The dual-switch 3D print head can ensure the precision of the relative positions between dual nozzles during multiple switchings for a long time, and also achieve the organic combination of active wire feeding and passive wire feeding for a continuous fiber wire material is also realized, thereby realizing high-quality printing of continuous fibers.

The utility model relates to the technical field of 3D printing, in particular to a line merging mechanism, a printing head and a three-dimensional printer, the line merging mechanism is applied to printing equipment, the printing equipment further comprises an extrusion mechanism and a nozzle assembly, and the extrusion mechanism is used for selectively driving a target consumable in a plurality of consumables to advance or retreat; the extrusion mechanism is located at the upstream of a consumable path of the line combining mechanism and the nozzle assembly, and the line combining mechanism comprises a plurality of feeding channels and at least one discharging channel communicated with the feeding channels; the nozzle assembly is used for being communicated with the discharging channel. The printing head comprises the line merging mechanism. The three-dimensional printer comprises the line merging mechanism and a printing head. According to the technical scheme, multi-color printing can be achieved without cutting off the consumables.

A de-powdering system includes one or more sidewalls defining a support chamber configured to contain an additive manufacturing build where the additive manufacturing build includes one or more objects disposed within a powder build material. A fluidization mechanism is fluidically couplable to a fluid source and includes one or more flow channels fluidically coupled to the support chamber. The fluid source is actuatable to provide a fluid from the fluid source to the support chamber and inject the fluid into the support chamber via the one or more flow channels. The one or more flow channels are oriented to introduce a swirling flow of the fluid into the support chamber to fluidize at least a portion of the powder build material within the support chamber.

The invention provides a method for manufacturing a terbium-dysprosium-iron giant magnetostrictive alloy based on three-dimensional photocuring molding, which comprises the following steps of: firstly, preparing three-dimensional photocuring molding slurry, adopting photosensitive resin as a matrix, and matching with a metal organic chelating agent containing terbium-dysprosium-iron giant magnetostrictive alloy component to enhance the uniform distribution of metal powder so as to ensure the printing precision and the material stability; secondly, the resin and the chelating agent are removed through heat treatment degreasing, the degreasing process is controlled by controlling the heating rate, and structural collapse is avoided; decarburization is carried out in a low-oxygen atmosphere, so that the purity of the alloy is improved, and the structural integrity before sintering is ensured; then reduction treatment is performed to improve the structural stability and purity; and finally, high-temperature sintering is carried out under the assistance of a magnetic field, grain orientation and magnetic domain arrangement are optimized, and the magnetostrictive effect and the force-magnetic energy conversion efficiency are improved. According to the method, three-dimensional light curing forming and magnetic field auxiliary heat treatment are combined, and the risk of structural damage in the printing process of the terbium dysprosium iron giant magnetostrictive alloy is practically and effectively avoided.

The present application provides a 3D printing device (10). The 3D printing device (10) comprises a printing platform (100) and a separation assembly (200); the separation assembly (200) comprises a separation member (210) and a flipping member (220); the separation member (210) is used for separating a workpiece (900) from the printing platform (100); and the flipping member (220) is used for flipping the workpiece (900).

The present disclosure relates a method of chemical polishing a 3D printed object. The method comprises treating a 3D printed object with solvent to reduce the surface roughness of the 3D printed object, and controlling the Youngs modulus of the 3D printed object within a target value by selectively removing at least part of the solvent from the 3D printed object.

The invention discloses a 3D printing system capable of dynamically focusing and adaptively adjusting the spot size, and belongs to the field of 3D printing, the 3D printing system comprises a light source, a focusing lens, a focusing lens, a reflecting mirror and a printing working face which are arranged in sequence, the focusing lens moves front and back in the laser propagation direction and is used for calibrating the focal length at any time, the focusing lens is fixed, and the reflecting mirror is used for reflecting the spot size. The laser emitted by the light source is divergent laser, and an aperture diaphragm is arranged on the focusing lens and used for enabling the change proportion of the working distance to be the same as the change proportion of the beam diameter D when the focusing lens moves back and forth. In the process that the reflection galvanometer changes the laser inclination angle and focuses, the size of a light spot on a printing working face does not change, the magnification and the focal length of the whole system do not need to be adjusted through a compensation algorithm, and the system program is simplified.

A micro-nanoscale additive manufacturing method, and a patterning method. The additive manufacturing method uses an electric field to control directional movement of a charged dispersed phase in a gas. The charged dispersed phase passes through hollow channels in a hollow pattern layer on a substrate, and moves and builds up on the substrate, forming a printed pattern having a smaller feature size than that of the hollow channels. The substrate is an insulating substrate, the electric field strength value at the printing position is controlled to be not lower than 15000 V / cm, and the electric field strength direction is a positive direction or a negative direction.

The invention discloses a novel continuous fiber 3D printing nozzle and a printing path method.The novel continuous fiber 3D printing nozzle comprises a continuous fiber wire feeding module and two polymer wire feeding modules, the two polymer wire feeding modules are arranged on the two sides of the continuous fiber wire feeding module, and a continuous fiber wire pipeline of the continuous fiber wire feeding module is vertically arranged downwards; the polymer filament pipelines of the two polymer filament feeding modules are of a V-shaped structure and are communicated with the continuous fiber filament pipeline of the continuous fiber filament feeding module in the middle to form a melt extrusion pipeline, and a heating block and a detachable filament outlet nozzle are installed at the tail end of the lower portion of the melt extrusion pipeline. In order to overcome the limitation and the defect that a current continuous fiber nozzle only depends on meshing of upper gears to abut against continuous fiber prepreg filaments to be conveyed downwards, the V-shaped cross pipeline is arranged, the continuous fiber prepreg filaments are extruded in a dragging mode through the toughness of polymer filaments on the two sides of the cross pipeline, and smooth and non-fracture extrusion of the continuous fiber prepreg filaments is achieved.

The invention discloses a plastic part printing platform and relates to the field of 3D printers, the plastic part printing platform comprises a base and a portal frame fixed to the base, two sliding rods are symmetrically fixed to the inner wall of the base, and two sliding blocks are installed on the outer walls of the sliding rods in a sliding mode; when the plastic part printing platform works, one station executes plastic part printing, the other station completes profiling gluing, and the distribution of a glue layer is accurately matched with the shape of the bottom surface of a printed part; and after the stations are switched, the first-layer material printed in the pre-gluing area and the glue layer form space correspondence, and accurate coverage of the bonding enhancement area is achieved. Full-automatic gluing is achieved in batch production, manpower is saved, the glue consumption is reduced, the cleaning difficulty of a bottom plate on a subsequent hot bed is reduced, and the double benefits of resource saving and process optimization are achieved.

Provided in the present application are a three-dimensional printing plate-changing transporting apparatus and a plate-changing system. The three-dimensional printing plate-changing transporting apparatus comprises: a collecting basket, used for accommodating a plurality of forming platforms, the plurality of forming platforms including blank forming platforms to be placed into a printing apparatus or printed forming platforms with an attached printing model after being printed by the printing apparatus; a supporting platform, used for bearing the collecting basket; and a moving mechanism, wherein the supporting platform is fixedly mounted on the moving mechanism, and the moving mechanism is suitable for driving the supporting platform to move, so that the collecting basket loaded with the plurality of forming platforms is driven to move between an initial position and a target position.

The present disclosure describes a method of making a composite product (20) by additive manufacturing. The method includes providing an additive manufacturing apparatus having a build platform, the build platform having a planar face on which the product is formed; securing a fabric (22) sheet to the planar face (11) to provide a planar fabric surface thereon; additively manufacturing an intermediate object on the planar fabric surface in the apparatus (12) by light polymerizing a dual cure resin to produce an intermediate object on the build platform, the intermediate object including the fabric (22) sheet having the three-dimensional object (21) adhered thereto; and concurrently with or following the additively manufacturing step, further curing the intermediate object to produce a composite object including the fabric sheet having the three-dimensional object adhered thereto. Composite object and products are also described herein.

Embodiments of the disclosure are directed to an apparatus (200) for smoothing a surface of an object (100). The apparatus (200) includes a chamber (210), a reservoir (216, 324) configured to hold a liquid (322), and a nebulizer assembly (212) configured to generate a mist (104) from the liquid (322) into the chamber (210). The nebulizer assembly (212) includes a mesh (732), a vibrating element (731), and a wick (736). The object (100) is received in the chamber (210) and the mist (104) is configured to surround the object (100).

The invention discloses equipment for pattern design and cultural and creative product printing, and relates to the field of printing equipment. The printer body is arranged on the bracket; the moving assembly is arranged in the bracket; the printing table is arranged in the moving assembly, and the moving assembly can drive the printing table to horizontally move in the support; the printing table comprises a base which is arranged on the moving assembly; the plurality of vertical rods are arranged at the top of the base; the movable plate is arranged between the vertical rods in a sliding and penetrating manner; the lifting part is arranged between the base and the moving assembly and used for driving the movable plate to move upwards or downwards on the top of the base, through the structural design, the risk that products are scratched, deformed or broken possibly caused by traditional manual prying, scraping and shoveling and other operations is avoided, and the lifting device is especially important for cultural and creative products with flat bottom faces, and the production efficiency of the cultural and creative products is improved. And the yield and the quality of good products can be effectively improved.

The present disclosure relates to a method (1900) for surface treatment of 3D printed parts for bioprocessing equipment, the method comprising: applying (1902) pressure to a surface (210) to be treated of a 3D printed part (200) using a contact surface (111) of an elastomeric resurfacing tool (110); heating (1904) the contact surface (111) to a temperature above the melting temperature of a material of the 3D printed part (200), thereby melting the surface (210) to form a molten layer of the material at the surface (210); allowing (1906) the surface (210) to cool such that the molten layer formed at the surface (210) re-solidifies, thereby producing a treated surface; and withdrawing (1908) the pressure applied to the treated surface.

This invention relates to the field of dental tray printing technology, specifically to a method for post-processing the surface of 3D-printed transparent dental trays, comprising the following steps: Step 1, cleaning the dental tray print using a resin cleaner; Step 2, polishing the cleaned dental tray print to remove surface defects; Step 3, forming a fluid resin layer with a thickness of 8-15 μm on the surface of the dental tray print; Step 4, curing the fluid resin layer to obtain the finished dental tray. This application can produce dental trays with high transparency. In this application, a fluid resin layer with a thickness of 8-15 μm is formed on the surface of the dental tray print, and the fluid resin layer is then cured. At this point, the outer surface of the finished dental tray is the outer surface of the fluid resin layer. The fluid resin layer can be used to fill in scratches caused by the polishing process, preventing these surface defects from affecting the transparency of the finished dental tray.

A 3D printing consumable support with damping relates to the technical field of 3D printing and comprises a base, a damping plate and a damping adjusting mechanism. A bracket for supporting the tray is arranged at the top of the base; the tray is correspondingly and rotationally connected with the bracket through a rotating shaft; a damping plate capable of being in corresponding friction contact with the outer circle of the material disc is arranged below the material disc, one end of the damping plate is correspondingly hinged to the support, and a damping adjusting mechanism used for adjusting friction force between the damping plate and the material disc is arranged at the position, corresponding to the other end of the damping plate, of the base. The damping plate capable of being in corresponding friction contact with the outer circle of the charging tray is arranged below the charging tray, and the damping adjusting mechanism used for adjusting the friction force between the damping plate and the charging tray is arranged on the base. The damping plate is pulled to be lifted upwards through the damping adjusting mechanism, so that the damping plate makes corresponding friction contact with the outer circle of the material disc, the rotating resistance of the material disc is increased, and the situation that due to inertia of the material disc, excessive material loosening is caused, and consumable materials are empty and then wound and knotted is avoided.

A process embeds functional fibers in a workpiece during selective laser sintering. In a process variant, parts of a powder layer are sintered before the insertion process, for example using a laser beam. A heating device then subsequently re-melts the already melted workpiece parts. Through a channel in the heating device, the functional fiber is fed to the melt or melt-like mass by means of a feed device and inserted into the melt or melt-like mass at the insertion point. Due to the movement of the heating device, the completely or partially melted area moves away from the heating element and is heated less, causing it to cool and solidify comprising the already inserted functional fiber. This variant can also be used for inserting fibers into objects created, for example, by injection molding or extruder-based 3D printing or other additive manufacturing processes.

The present invention discloses a method for preparing a voxelized multi-material structure based on the capillary cascade effect. The above-mentioned preparation method includes the following steps: S1 constructing a lattice unit model with different implosion pressures in software and arranging them in three dimensions, and using a 3D printer to print out the arranged lattice units to obtain a microlattice structure; S2 injecting a precursor solution into the microlattice structure and filling its internal space; S3 depositing the precursor solution in the target lattice unit based on the capillary cascade effect by liquid depletion; S4 solidifying the precursor solution deposited in the target lattice unit to form a single-material voxel structure; S5 repeating steps S2-S4, sequentially depositing and solidifying different precursor solutions in lattice units with different implosion pressures, to complete the preparation of the voxelized multi-material structure. The purpose of the present invention is to provide a voxelized multi-material preparation method that can be completed with high precision and speed using simple equipment.

The utility model discloses a leveling device applied to a photocuring printer, and belongs to the technical field of 3D printing, the leveling device is characterized by comprising a fixed plate arranged on a rack and a light machine arranged on the fixed plate, and a connecting plate used for fixing the light machine is arranged at the lower end of the fixed plate; the fixing plate and the connecting plate are both provided with coaxial through holes for an optical machine lens to penetrate through, the fixing plate is provided with four force application pieces which always apply acting force close to the connecting plate to the connecting plate, the four force application pieces are arranged on the two sides of the fixing plate respectively, and three micrometer heads are evenly arranged on the fixing plate and surround the through holes. The measuring heads of the three micrometer heads always exert abutting force on the connecting plate, three abutting screws used for abutting against the connecting plate are evenly arranged on the fixing plate and surround the through hole, and the device has the advantages of being simple in structure, convenient to operate and high in precision.

The present invention discloses a large-scale FDM printer, which has a structure including a printing unit, a transposition unit and a unloading unit. The printing unit includes a main frame and a printing platform is provided in the main frame. The printing platform is connected to a first driving component for controlling its radial upward and downward sliding in the main frame. An extrusion unit is also provided on the top of the main frame. A second driving component for controlling the x-axis or y-axis movement of the extrusion unit seat is also provided in the main frame. A fixing component for fixing a printing plate and a lifting component for lifting the printing plate are provided on the printing platform. The transposition unit includes an assembly base fixed between the main frame and the machine base, a sliding stand is slidably provided on the assembly base, and a clamping mechanism for clamping the printing platform and driving the printing platform to rotate and transpose is provided on the sliding stand. A cooling device is provided on one side of the transposition unit.

The present invention relates to a component (1) of an eyeglass frame and a method for the additive manufacturing of such a component (1) by stereolithography, the component (1) comprising at least one eyeglass frame (3) with an inner edge (10), an inner support structure (12) being manufactured together with the eyeglass frame (3) to support the eyeglass frame (3), the inner support structure (12) of the manufactured component (1) being connected to the inner edge (10) at at least two opposing points (14), these points (14) being supported relative to each other, the surface (5) of the component (1) having at least one connection region (7), the connection region (7) being hidden in the use position of the finished eyeglass frame, an outer support structure (9) being provided, the outer support structure (9) being manufactured together with the component (1), the connection between the outer support structure (9) and the component (1) being established at the connection region (7), and the manufacturing of the inner support structure (12) being started when the connection between the outer support structure (9) and the component (1) is established.

A three-dimensional (3D) printed object is described. The 3D printed object comprises a polymer. A surface of the 3D printed object comprises the polymer 5 and a UV absorbing colorant. The surface has a surface area roughness Sa (arithmetical mean height) of ≤5.0 μm. A method for preparing a three dimensional (3D) printed object having a smooth surface is also described.

The invention discloses a 3D printer with a printing space located in a drying oven cavity, and belongs to the technical field of 3D printing. According to the 3D printer, a printing device is installed on a horizontal driving device, a printing platform is installed on a vertical driving device, a printing space is formed in a drying oven, the printing platform is arranged in the printing space, the drying oven is used for adjusting the environment temperature in the printing space, and a horizontal organ cover and a feeding module are installed on the horizontal driving device. The horizontal organ cover is arranged between the printing space and the horizontal driving device, the feeding module is arranged above the organ cover, the vertical organ cover is installed on the vertical driving device, and the vertical organ cover is arranged between the printing space and the vertical driving device. The printing space of the 3D printer can be arranged in the drying oven cavity, so that the environment temperature of the printing space is adjustable, and the key requirements of the current high-performance engineering plastic 3D printing problem are met.

The utility model relates to the technical field of printers, and particularly discloses a photocuring 3D printer which comprises an alloy frame base, a light source system, a resin tank, a Z-axis lead screw transmission system, a forming platform and a control system, a projection opening is formed in the top face of the alloy frame base, and the light source system is installed in the alloy frame base through the projection opening; the light source system is installed on the alloy frame base, the resin groove is installed above the projection opening, the Z-axis lead screw transmission system is installed on the alloy frame base, the forming platform is installed at the movable end of the Z-axis lead screw transmission system and located in the resin groove, the control system is installed in the alloy frame base, and the light source system, the Z-axis lead screw transmission system and the forming platform are all electrically connected with the control system. The integral rigidity, durability and stability of the photocuring 3D printer are improved, the problem of abrasion of a belt and wheels caused by frequent movement is solved, and the printing precision of the photocuring 3D printer is ensured.

An apparatus for processing a wax mold to smooth it to a predetermined smoothness or mold height and filling the mold with paste. The apparatus has one or more cutting blades and cleaning brushes, the cutting blades rotate over the wax to polish it to the predetermined smoothness or mold height, and the cleaning brushes contact the cutting blades to remove the wax from the cutting blades.