1730results about "Manufacturing platforms/substrates" patented technology

A method of forming a three-dimensional object (31) includes the steps of: (a) providing an apparatus including a carrier (15), a light transmissive window (12) having a build surface, polymerizable liquid (21) on the build surface, and a growing object (31) on the carrier, the growing object produced by light polymerization of the polymerizable liquid; (b) vertically reciprocating the carrier (15) with respect to the build surface in an upstroke and a downstroke, the downstroke being shorter than the upstroke, to form a build region between the growing object and the build surface, and to fill the build region with the polymerizable liquid, while also: (i) sensing force exerted between the carrier and the build surface through the growing object (31) and the polymerizable liquid (21) during the upstroke; and (ii) modifying the speed, acceleration, or both speed and acceleration of the upstroke in response to the sensed force so that the sensed force approaches a predetermined target force; then (c) irradiating the build region with light through the light transmissive window to form a new portion of the object from the polymerizable liquid on the growing object; and then (d) repeating steps (b) through (c) to form additional portions on the growing object until the three-dimensional object is formed.

Support structures are used in certain additive fabrication processes to permit fabrication of a greater range of object geometries. For additive fabrication processes with materials that are subsequently sintered into a final part, an interface layer is formed between the object and support in order to inhibit bonding between adjacent surfaces of the support structure and the object during sintering.

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 system is provided that includes a dynamic molding bed assembly. The dynamic molding bed assembly includes a table frame, a passive rod assembly, an actuator and a controller. The passive rod assembly includes a plurality of rods, wherein each individual rod of the plurality of rods is independently adjusted to change a stroke length position relative to the table frame. The actuator couples to at least one individual rod of the plurality of rods to adjust the stroke length position of the at least one individual rod of the plurality of rods based on control instructions. The controller generates the control instructions to adjust the stroke length position and activates the passive rod assembly to secure at least one individual rod of the plurality of rods to the stroke length position.

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.

A three-dimensional (3D) printing system is configured to print a 3D article in a layer-by-layer manner and includes a vertical beam, an elevator, and a build platform. The elevator is configured for vertical translation along the vertical beam and includes an upper support and a lower support. The lower support includes at least one elevator actuator extending upward from an upper side. The upper support has a lower side including a datum surface in engagement with the actuator. The elevator actuator is configured to modulate a position of the upper side of the upper support. The build platform includes a build plate coupled below a support plate. The build plate has a lower side for formation of the 3D article. The support plate has a lower side that engages the upper side of the upper support of the elevator to support the build platform.

A three-dimensional (3D) printer includes a platform assembly on which a 3D object can be built, an extruder, a filament feeding assembly feeding a filament to the extruder, a movable nozzle receiving heated filament from the extruder in a flowable form and directing the flowable filament material on the platform assembly to create the 3D object, and a controlling circuit for controlling an operation of the 3D printer. The platform assembly may include first and second plates separated from one another, a plurality of elongated structures connecting the first and second plates to one another, and a plurality of post assemblies disposed between the first and second plates. The post assemblies may include posts that can be selectively raised and lowered to protrude over the plate, from among the first and second plates, on which the 3D object will be built to assist with the building process.

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.

A three-dimensional (3D) printer includes a platform assembly on which a 3D object can be built, an extruder, a filament feeding assembly feeding a filament to the extruder, a movable nozzle receiving heated filament from the extruder in a flowable form and directing the flowable filament material on the platform assembly to create the 3D object, and a controlling circuit for controlling an operation of the 3D printer. The platform assembly may include first and second plates separated from one another, a plurality of elongated structures connecting the first and second plates to one another, and a plurality of post assemblies disposed between the first and second plates. The post assemblies may include posts that can be selectively raised and lowered to protrude over the plate, from among the first and second plates, on which the 3D object will be built to assist with the building process.

The present invention relates to a 3D printer comprising: a vat having an at least partially transparent bottom (1.2) for receiving liquid photoreactive resin for producing a solid component; a building platform (2.1) for pulling the component layer by layer out of the vat; a projector for projecting the layer geometry onto the transparent bottom (1.2); a transport apparatus for moving the building platform (2.1) at least downward or upward in the vat; and a receiving apparatus (2) for detachably connecting the building platform (2.1) to the transport apparatus. The receiving apparatus (2) comprises a pivoting device (2.2) for pivotally holding the building platform (2.1) and is adapted to abut the underside of the building platform (2.1) parallelly onto the transparent bottom (1.2) of the vat when lowered by the transport apparatus, wherein the 3D printer is provided without any means for completely blocking the pivotal movement of the pivotably held building platform (2.1).

The utility model discloses a hot bed and a 3D printer, and relates to the technical field of 3D printing, the hot bed comprises a printing platform, a support frame and a locking assembly, the printing platform is provided with a printing plane used for bearing a printing piece; the supporting frame is arranged on the side, back to the printing plane, of the printing platform, the supporting frame and the printing platform are arranged at intervals in the first direction and elastically connected through an elastic piece, and the first direction is perpendicular to the printing plane; the locking assembly is arranged on the printing platform and provided with a friction face abutting against the supporting frame, the friction face is parallel to the first direction, friction force parallel to the first direction exists between the friction face and the supporting frame, and the friction force is used for limiting relative movement of the printing platform and the supporting frame in the first direction. According to the technical scheme, the connecting structure of the hot bed is simplified, and the leveling efficiency of the hot bed is improved.

The utility model discloses a hot bed leveling supporting structure which comprises a base, a heating plate, a rotary connecting assembly and a fixed connecting assembly, the rotary connecting assembly and the fixed connecting assembly are connected with the base and the heating plate, and the heating plate can rotate around the rotary connecting assembly in the horizontal direction. By arranging the rotary connecting assembly and the fixed connecting assembly, the heating plate can rotate around the rotary connecting assembly, the distance between the heating plate and the base is kept unchanged, the positions of the heating plate and the base are fixed through the fixed connecting assembly, and leveling of the heating plate is achieved.

Systems, devices, and methods for additive manufacturing of objects are provided. In some embodiments, a device for supporting an object during an additive manufacturing process includes a build platform having a surface, and a plurality of support structures extending above the surface of the build platform. Each support structure can be configured to couple to a portion of an additively manufactured object. The device can also include a plurality of actuators, each actuator being configured to adjust a position of a corresponding support structure relative to the build platform.

The utility model discloses a hot bed and a 3D printer. The hot bed comprises a bed plate and a heating device, the supporting piece is arranged on one side of the bed board; the elastic leveling device is connected with the bed board and the supporting piece and is used for adjusting the flatness of the bed board; the locking assembly is connected with the bed board and the supporting piece and used for locking the position of the bed board relative to the supporting piece after the bed board is leveled. According to the hot bed in the embodiment, the locking assembly is used for locking the position of the bed board relative to the supporting piece after the bed board is leveled, so that deformation and displacement of the bed board can be reduced, the overall rigidity of the hot bed is improved, and then the printing quality of the 3D printer is improved.

This invention relates to an apparatus and method for fabricating microanodes using localized electrochemical deposition additive manufacturing, belonging to the fields of 3D printing technology and electrochemical deposition. The y-axis moving device is threadedly connected to the frame assembly, and the dual-nozzle device is also threadedly connected to the y-axis moving device. The z-axis moving device is fixed to the frame assembly, and the heated bed platform is fixed to the z-axis moving device. An inert metal wire cutting device is installed on the connecting shaft between the z-axis moving device and the heated bed platform. The advantages are: it automates the fabrication of microanodes using localized electrochemical deposition additive manufacturing, improving the efficiency of microanode fabrication and saving manpower, material resources, and financial resources; it solves the difficulties of traditionally using capillary glass tubes to encapsulate extremely fine inert metal wires, allowing for convenient encapsulation of inert metal wires with diameters below 20 micrometers; it utilizes laser cutting for post-processing the electrode, avoiding the difficulty of grinding a smooth electrode surface; and the electrode shape can be designed by computer, without shape limitations.

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.

The invention belongs to the technical field of additive manufacturing, and discloses a method and device for improving 3D printing quality, the device is used for being matched with an FDM 3D printing system, the device comprises a printing platform (4), a containing cavity (5), a temperature control system, an annular ultrasonic auxiliary system (3), a liquid circulation system and an infrared liquid level detector (8), and the containing cavity (5) is provided with an ultrasonic generator (53); the annular ultrasonic auxiliary system (3) comprises an annular support (31), an ultrasonic array module (32), a spray header module (33) and a lifting mechanism (34). According to the 3D printing device, the assemblies are improved, and 3D printing can be effectively improved through the overall arrangement of the containing cavity, the temperature control system, the annular ultrasonic auxiliary system, the liquid circulation system and the infrared liquid level detector. The device is flexible in structure, high in synchronism and excellent in local treatment capacity, and the surface smoothness and structural integrity of the FDM 3D printing piece can be remarkably improved.

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 present disclosure provides a 3D printer including a receiving surface for accepting the accumulation of material layers, and a gantry having a shaft and carriage that is translated along the shaft, and an extruder assembly that is articulated to rotate a printing plane, wherein the extruder assembly is attached to the carriage and the articulated extruder assembly is manipulated to rotate the printing plane away from parallel with the receiving surface.

3D printing device and 3D printing method. The device comprising:a build platform having an external surface;means for providing a polymerizable fluid resin on said surface;a radiation source, to emit a radiation beam to said surface;beam positioning means, to variably position an impinging point of said beam; andmeans for controlling said source and said positioning means to manufacture a 3D tubular object according to a model;wherein the build platform comprises a stem forming a tubular shaped surface around a longitudinal axis, so that said external surface of said build platform is comprised in said tubular shaped surface, and said positioning means is configured to variably position said impinging point of said beam on different points of said fluid resin provided on said tubular shaped surface.

The utility model discloses a hot bed and 3D printer relates to 3D printing technical field, the hot bed includes shell and heating module, the shell is equipped with the cavity, forms the power supply area in the cavity, the power supply area deviates from the middle area of the cavity, the shell is used for bearing the printing panel; the heating module comprises a plurality of heating units, the two ends of each heating unit are connected to the power supply area, and the heating units form an annular structure. The technical scheme provided by the utility model aims to improve the heating efficiency of the hot bed.

The invention discloses an automatic leveling machine structure of a 3D printer and the 3D printer. The automatic leveling machine structure of the 3D printer comprises a fixed base, a printing platform, three leveling driving units evenly distributed on the circumference, a distance measuring sensor and a controller. The leveling driving unit is of a wedge-shaped transmission structure, a lead screw is driven through a leveling motor, a horizontal wedge block is driven to move, and then a vertical wedge block and a supporting table are pushed to ascend and descend precisely. The supporting table is connected with the printing platform through the spherical hinge assembly, the driving shell is rotatably arranged on the fixed base, and the design can adaptively eliminate internal stress in the leveling process. The distance measuring sensor moves along with the printing head to measure height data of a plurality of points of the platform; and the controller fits a platform plane by using a least square method, calculates the adjustment amount of each supporting point, and drives the leveling motor to complete automatic leveling. The problems that an existing leveling technology is low in precision and prone to clamping stagnation, internal stress exists and the like are solved, and high-precision and high-reliability automatic leveling is achieved.

A device for producing three-dimensional screen printed workpieces, in particular a 3D screen printing system, comprising a printing screen and a squeegee device for flooding the printing screen with a printing compound and / or for pressing the printing compound through the printing screen, wherein the squeegee device has at least one squeegee tool, a sensor device for detecting squeegee forces acting on the squeegee tool, and a control device for evaluating and / or storing sensor data of the sensor device, wherein the control device is designed to determine a screen restoring force and / or screen tension of the printing screen by means of the sensor device and / or from detected and / or stored sensor data of the sensor device.

The photosensitive resin 3D printer comprises a machine body with a printing cavity, a printing platform is slidably connected into the printing cavity, the photosensitive resin 3D printer further comprises a plurality of rotating paddles and a driving mechanism, the rotating paddles are rotatably connected into the printing cavity, and the propellers are movably connected into the printing cavity in the vertical direction; the driving mechanism is used for driving the propellers to rotate and the printing platform to move at the same time, before the printing platform descends every time, the driving mechanism drives the rotating paddles to rotate and move, and after the rotating paddles move to the first position, the driving mechanism drives the printing platform to descend at the same time. The resin can be effectively stirred through rotation and movement of the rotating paddle, so that the viscosity of the resin is uniform, the local curing difference is reduced, and the possibility that the resin concentrations of all parts in the printing cavity are inconsistent is reduced; bubble surface tension is broken through mechanical stirring, bubbles are promoted to float upwards and be discharged, and printing defects are reduced.

The invention belongs to the technical field of laser printing, and particularly relates to a laser additive manufacturing method and a laser additive manufacturing device. The laser additive manufacturing method comprises the following steps that S1, a printing material is melted through a melt extrusion structure, the melted printing material is extruded to a bearing platform according to a preset path, and a first additive layer is formed; s2, a metal layer is laid on the first additive layer through a wire feeding structure; s3, modifying the surface of the metal layer through a laser generation structure; and S4, a second additive layer is printed on the metal layer through the melt extrusion structure, and the second additive layer covers and adheres to the metal layer and the first additive layer. The mechanical strength of the resin material can be improved, so that the interlayer bonding strength is high, obvious anisotropy is avoided, the use of a high-strength printing material is avoided, and the metal layer is beneficial to control and reduction of the printing cost.

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.

The invention belongs to the technical field of 3D printing additive manufacturing, and provides a large-breadth 3D printing local area double-camera grafting printing device and method.The large-breadth 3D printing local area double-camera grafting printing device comprises an image collecting device, a high-precision ceramic calibration plate, a to-be-grafted part clamp and a printing equipment upper computer; the double cameras are fixed on an equipment top plate through supports, the field of view of the large-field-of-view camera completely covers the whole breadth of the substrate, and the field of view of the small-field-of-view camera completely covers a local area to be grafted; the calibration plate is divided into two specifications of adaptive double cameras, the clamp can be used for detaching and fixing parts and leveling a grafting surface, and the upper computer is electrically connected with the double cameras and the printing equipment to receive positioning data and adjust a printing model; according to the method, the grafting precision is smaller than or equal to 0.1 mm, the total cost of the double cameras is reduced, the manual workload is reduced, the problems that according to an existing scheme, coverage and precision are contradictory, cost is high, and automation is low are solved, and the method is suitable for large-format 3D printing local grafting scenes.

The invention relates to the technical field of 3D printers, in particular to a 3D printer precision guide rail platform leveling device which comprises a moving plate and a printing plate and further comprises a hot plate, an adjusting assembly and a detection assembly, the hot plate is connected to the upper portion of the moving plate, the adjusting assembly is connected to the lower portion of the moving plate, and the top of the adjusting assembly is connected with the hot plate. Through the arrangement of the detection assembly, when the printing plate is not level, the distance for pushing the moving column to move upwards can be changed at the corner of the printing plate, so that the moving column deviates from the specified height, the horizontal state of rotation is further broken, whether the rotating rod returns to the horizontal state or not is observed during leveling, and therefore the leveling degree is visualized; and when the pressing plate downwards presses the printing plate, the protruding edge is attached to the edge of the printing plate, so that the pressing plate is clamped with the corner of the printing plate, and it is avoided that the printing plate deviates in the printing process, and the printing quality is affected.

The invention relates to an apparatus for producing three-dimensional screen-printed workpieces, in particular a 3D screen-printing system, the apparatus comprising a printing screen and a doctor blade device for flooding the printing screen with a printing compound and / or for pressing printing compound through the printing screen, wherein the doctor blade device has at least one doctor blade tool, an adjustment device for adjusting the inclination of the doctor blade tool, and a doctor blade mount which allows the inclination of the doctor blade tool to be adjusted about an inclination axis by means of the adjustment device, wherein the doctor blade mount has at least one spring bearing.