2110 results about "3d printer" patented technology

The application discloses a kind of based on 3D printing's three-dimensional model slice path processing method and device. Including: control 3D printer to starting point as starting point;Based on the region surrounded between starting point and reference point, determine the printing point to be printed that 3D printer needs to execute printing action during executing 3D printing job;Starting point and the printing point to be printed are sequentially connected by smooth straight line, generate printing path;Based on printing path control 3D printer executes 3D printing job and obtains target object, to effectively reduce the number of line segments of slice contour line of three-dimensional model forming target object, avoid 3D printer in printing job, in the pause frequency of line segment head, tail, simultaneously avoid the problem that 3D printing model surface protrusion is caused by long time scanning due to pause.In reducing pause frequency, printing is more smooth, improve printing efficiency, simultaneously also reduce algorithm complexity, help the simplification of algorithm.And effectively simplify the algorithm of 3D printer.

The technology described herein is directed towards a metasurface arranged with unit cells for broadband and / or multiband sound absorption, in which the unit cells are based on the principles of Helmholtz resonators. Deeply subwavelength sound absorbing unit cells are designed and constructed based on desired resonance frequencies. Each unit cell includes a neck portion and air chamber dimensioned to resonate at a desired resonance frequency and thereby inverse phase cancel corresponding frequencies of incoming sound waves. Differently designed and arranged subgroups of unit cells are part of the metasurface, which can be positioned proximate to a noise source. As practical examples, the metasurface or multiple metasurfaces can be placed near or wrapped around a computer server or rack of servers to absorb fan noise. The metasurface components (including the unit cells) can be printed by a 3D printer to result in a thin, light-weight, and cost effective noise absorbing metasurface.

The utility model discloses a 3D printer material changing mechanism and a 3D printer. The 3D printer material changing mechanism comprises a first driving device, a feeding mechanism, a feeding driven assembly, a material selecting mechanism, a first transmission assembly, a feeding linkage mechanism, a second driving device and a consumable material winding roller mechanism which are connected according to a set connection relation. The number of the feeding driven assemblies is multiple, consumables can be arranged between the feeding mechanism and each feeding driven assembly, and therefore multiple types of consumables can be selected for printing. By means of the material changing mechanism of the 3D printer, required consumables can be selected and conveyed to the spray head to be printed. According to the material changing mechanism of the 3D printer, consumables can be flexibly changed and selected for printing, and diversified printing requirements of people can be met. The utility model can be used for a single-nozzle 3D printer to print multi-color consumables, or for a single-nozzle 3D printer to print consumables made of various different materials.

The invention relates to the technical field of 3D printing, and discloses a fiber reinforced composite material 3D printer and a printing method, current deposition tows are heated / cooled under the action of a preset interlayer pressing force through an interlayer pressing device, interlayer fusion can be promoted, the interlayer bonding strength can be improved, the heat history in the wire cooling process can be eliminated, and the 3D printing quality of the fiber reinforced composite material is improved. The crystallization behavior, the grain size and the grain distribution of a polymer in a printing wire material are controlled, and the microscopic uniformity of a composite material printing product is improved. The side face and the upper surface of the current deposition tow are subjected to hot-pressing shaping through the inter-channel pressing device, meanwhile, secondary hot-pressing is conducted on the adjacent printing layer deposition tow, resin of the current deposition tow and resin of the adjacent printing layer deposition tow can be melted and flow, so that the inter-channel gap between the adjacent printing layers is filled, and the printing effect is improved. And the inter-track bonding strength is improved.

The invention discloses a single-mode intelligent 3D printer control system, and relates to the technical field of 3D printing control, the single-mode intelligent 3D printer control system comprises a multi-source sensing module, an intelligent decision module and an evolution closed-loop module, the multi-source sensing module collects geometric features of a three-dimensional printing model and printing environment state data in real time; the intelligent decision-making module generates self-adaptive slicing parameters based on the data and dynamically adjusts printing process parameters; the evolutionary closed-loop module stores historical printing data and continuously optimizes parameters, the evolutionary closed-loop module, the evolutionary closed-loop module, the evolutionary closed-loop module and the evolutionary closed-loop module form a closed-loop system, and the system realizes full-process intelligent self-adaption from model analysis to printing execution, can improve the stability of printed pieces and the adaptability of the system, and is suitable for complex 3D printing tasks.

The invention relates to the technical field of 3D printing, in particular to a 3D printer nozzle motion control method, which can obtain an original printing track, and adopts a five-point Bezier curve to carry out smooth transition processing on corners between adjacent track sections; generating a speed plan of the nozzle in the smooth trajectory, wherein the speed plan comprises an acceleration stage, a uniform acceleration stage, a constant speed stage, a uniform deceleration stage and an acceleration and deceleration stage; calculating a speed plan of an E axis in direct proportion to the speed plan of the nozzle; and according to the speed plan of the spray head and the speed plan of the E axis, the 3D printer is controlled to execute 3D printing along the smooth track, and synchronous movement of the spray head and the extruder is achieved. It can be understood that according to the technical scheme shown by the invention, the corner is smoothed, the direction of the spray head cannot change suddenly, five-section speed planning is adopted, the acceleration of the spray head changes smoothly, meanwhile, the E axis and the speed of the spray head are coordinated, and the precision and efficiency of 3D printing are improved.

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 discloses an XR-based immersive three-dimensional modeling and straight-through 3D printing system and method, and the method comprises the steps: S1, collecting user input, and converting the user input into an interaction instruction; s2, generating three-dimensional model data; s3, superposing the three-dimensional model into a real physical environment according to a proportion of 1: 1, and outputting a virtual-real fusion display result; s4, performing printability analysis on the model, marking a problem area, guiding a user to modify and providing an automatic repair suggestion; s5, generating a support structure, and providing visual preview and interactive editing; s6, slicing and path planning are executed, and a printing instruction file meeting the control requirement of the 3D printer is generated; s7, communication connection with the 3D printer is established, and printing state information is fed back; and S8, providing storage and calling support of the three-dimensional model file, parameter configuration and environment map data. According to the invention, seamless integration of immersive XR modeling, MR real-time verification and one-key direct-through 3D printing is realized.

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 clay 3D printer comprises a water supply mechanism, when water needs to be supplied to an extrusion mechanism, a first one-way valve is opened, a piston rod moves in the direction away from a conduction valve, water in a water supply bin flows into a water injection cavity, then the first one-way valve is closed, a second one-way valve is opened, and the water outlet amount is controlled. A piston rod moves in the direction close to a communicating valve, so that water in a water injection cavity flows into a water outlet pipeline through a water outlet channel, a clay raw material in an extrusion assembly and the water are mixed and stirred to form a clay material for 3D printing, and water can be conveniently supplied to the extrusion assembly; and the water storage amount in the water injection cavity each time is controlled through the driving air cylinder with the adjustable stroke, so that the quality of the clay 3D printing product is more stable.

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.

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.

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.

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.

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 utility model relates to a material cutting and winding detection integrated device for a material strip in a 3D printer. The material cutting and winding detection integrated device comprises a shell, a rocker arm assembly, an extrusion assembly and a composite sensor module, the composite sensor module comprises a mainboard, a Hall sensor and a photoelectric sensor; the rocker arm assembly comprises a rocker arm, an idle wheel and an induction magnet, the rocker arm can swing transversely and is connected with the shell through a spring, the induction magnet is arranged at the tail of the other side end of the rocker arm, and the idle wheel is rotationally arranged on the upper portion of the rocker arm. The extrusion assembly comprises a shaft rod, extrusion teeth and a code disc, the shaft rod is rotatably arranged in the shell, the extrusion teeth are arranged on the lower portion of the shaft rod, and the code disc is arranged on the upper portion of the shaft rod. According to the utility model, the automatic detection of whether the material strip is broken or not is realized through the relative action of the induction magnet and the Hall sensor, and the automatic detection of whether the material strip is wound or not is realized through the relative action of the coded disc and the photoelectric sensor, so that the simultaneous monitoring of the two conditions of material breaking and material winding is realized.

The invention discloses a cloud-based 3D printer intelligent control method and system, and the method comprises the steps: after receiving an STL model file and printing parameters uploaded by a user at a cloud, executing a slicing operation to generate G code data, and transmitting the G code data to a printer; then, the cloud end continuously receives a G code line number currently executed by the printer, context analysis is carried out on G code data according to the G code line number, and a real-time printing context vector reflecting the current working state and the expected action of the printer is generated; meanwhile, in combination with a camera video frame collected by a printer, AI reasoning based on context perception is carried out on visual data by utilizing the real-time context vector, so that a more accurate exception decision is generated and an alarm is sent to a client. In this way, the accuracy and robustness of printing anomaly detection are remarkably improved, and therefore more intelligent, efficient and reliable remote printing experience is provided for a user.

A multi-nozzle-switchable 3D printer, a nozzle grabbing and butt-jointing method, a nozzle separation method and a control method. The 3D printer comprises a movement mechanism (4), a nozzle seat (1), and a plurality of nozzle bodies (2), the plurality of nozzle bodies (2) being positioned on a base (5) of the 3D printer, and the movement mechanism (4) being connected to the nozzle seat (1). The nozzle seat (1) is provided with a driving mechanism (11) and a female connector (12), the female connector (12) being transmissively connected to the driving mechanism (11). Each nozzle body (2) is provided with a male connector (21) and an extrusion mechanism (22), each male connector (21) being transmissively connected to an extrusion mechanism (22). Each male connector (21) can be plugged into the female connector (12) such that the female connector (12) is transmissively connected to the male connector (21), so as to achieve butt jointing between the nozzle seat (1) and a nozzle body (2) and enable the nozzle body (2) to leave the base (5).

The invention discloses a 3D printing system based on infrared feedback self-compensation, belongs to the technical field of additive manufacturing, and solves the problems that an existing method cannot collect temperature data in the actual printing process in real time, has hysteresis with a temperature field in the actual printing process and is difficult to adapt to the real-time adjustment requirement of technological parameters in 3D printing. The system comprises a vacuum forming cavity, a 3D printer, an infrared detection temperature feedback module, a temperature correction module and an analysis and evaluation module. In the invention, the temperature correction module corrects and analyzes the real-time state set based on the temperature correction model, and constructs the three-dimensional temperature field by combining the corrected temperature field with the basic parameters of the additive workpiece, so that the corrected temperature field is closer to the real working condition; therefore, the precision of energy output parameters of the additive workpiece defect analysis and polishing integrated machine head is guaranteed, and the response capacity of the real-time adjustment requirement of technological parameters in 3D printing is improved.

1. Name of the product in this design: 3D printer. 2. Purpose of this design: For printing 3D models. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

Disclosed in the present invention is a preparation method for a TPMS gradient structure of a 3D-printed personalized implant root. The method comprises: constructing a plurality of different types of implant root structure models; performing finite element simulation analysis on the implant root structure models; selecting an implant root structure model corresponding to a Gyroid structure; determining the porosity range of the Gyroid structure; designing the Gyroid structure as a gradient porosity Gyroid structure; and on the basis of the gradient porosity Gyroid structure, using a 3D printer to prepare a TPMS gradient structure of an implant root. The present invention combines a TPMS gradient structure with a 3D printing technique, such that the biocompatibility, mechanical property and personalization adaptability of an implant are improved, thereby promoting the effective integration of the implant with host tissue, and achieving a better functional reconstruction effect.

The invention relates to the technical field of 3D printing temperature control, and particularly discloses a 3D printer hot bed temperature closed-loop control method and system based on a PID (Proportion Integration Differentiation) algorithm. The method comprises the following steps: acquiring a temperature change trend prediction parameter based on multi-point temperature data and temperature change historical data, dynamically optimizing a PID parameter reference value according to the parameter to obtain an adaptive PID parameter, and performing online adaptive adjustment on the hot bed temperature according to the adaptive PID parameter, including converting a control output value into a pulse width modulation signal to adjust the overall heating power. And dynamically allocating partition power based on the trend vector, and switching the heating mode according to the dynamic stage. On-line real-time self-adaptive optimization of PID parameters is achieved, the problems of heating overshoot and slow cooling caused by dynamic asymmetry of a hot bed can be solved, temperature field distribution uniformity is improved, and adaptability to different printing working conditions and temperature control precision are improved.

The invention provides a printer consumable allowance intelligent prediction method and system, and belongs to the technical field of data processing.The printer consumable allowance intelligent prediction method specifically comprises the steps that the remaining printing duration is determined according to printing target data, and the monitoring time period of a 3D printer is determined based on the remaining printing duration and a printing target; according to the change data of the matching condition of the monitoring data of the weight sensor in the monitoring time period and the consumable demand weight, the monitoring processing scheme of the monitoring time period is determined, and based on the monitoring processing scheme, the ink jet amount and the monitoring data of the weight sensor are utilized to determine the verification processing result of the weight sensor. And on the basis of the verification processing result and the adjustment data of the ink jet amount of the printing target, the weight interval of adjustment processing of the prediction processing scheme of the allowance is determined, and the reliability of printing processing is improved.

A disposable tank and build platform for a 3D printer are disclosed. The container is pre-filled and sealed with light-cured resin. The build platform is a surface to which the printed part adheres during the printing process. The build platform allows for application-specific containers to minimize resin waste during small print batches. The container further comprises a print screen. The print screen is a surface that allows light to pass through to cure the resin. The container with the light-cured resin is configured to allow operators to go through the print process with minimal resin handling and eliminates the need to measure the amount of resin during setup. Further, the container and build platform may come in a type of cartridge that is used up to build specific components such as dental appliances.

The invention relates to the technical field of image processing, and particularly provides a surface exposure photocuring 3D printing image edge real-time processing method and system, and the method comprises the steps: comparing the gray values of a target pixel and a forward neighborhood pixel in a 3D printing image with a preset threshold value, and judging whether the target pixel and the forward neighborhood pixel are edge pixels or not; when the target pixel is a non-edge pixel, taking the gray value of the target pixel as an output gray value; when the target pixel is an edge pixel, obtaining a random value in a preset interval as a first pixel weight of the edge pixel; calculating a second pixel weight of a forward neighborhood pixel and a third pixel weight of an oblique neighborhood pixel according to the first pixel weight; carrying out weighted summation calculation to obtain an output gray value of the edge pixel; and formatting and packaging the output gray value and outputting the output gray value to the 3D printer. The problem that in the prior art, when edge recognition is carried out on a 3D printing image, gray abrupt change exists at the edge contour, and consequently the 3D printing surface is rough is solved.

The invention provides a radio frequency assisted continuous fiber composite 3D printer and a printing method thereof, and relates to the technical field of 3D printing. The radio frequency assisted continuous fiber composite material 3D printer comprises a printing platform, a 3D printer body and a control system, wherein the printing platform is used for placing and fixing a printing material; the printing spray head is used for spraying a printing material to the printing platform; the driving device is used for driving the printing nozzle to move along a preset path; and the first heating assembly is used for continuously heating the printing material which leaves the printing nozzle and does not fall onto the printing platform and the printing piece, so that the temperature difference between the printing material and the printing piece is reduced. According to the radio frequency assisted continuous fiber composite material 3D printer, the bonding force between printing materials / layers is remarkably improved, the buckling deformation degree of a printed piece is reduced, and then the stability, the mechanical performance and the appearance quality of the printed piece are improved.

The invention discloses an isolator for establishing a bone nonunion animal model and a preparation method of the isolator, and relates to the technical field of medical instruments, and the preparation method comprises the following steps: step 1, obtaining a hydrogen-containing silicone oil prepolymer with a side chain containing Si-H bonds; 2, obtaining a silica gel macromonomer with an epoxy group on a side chain; step 3, obtaining an anti-inflammatory functionalized silica gel macromonomer; 4, reconstructing the skeleton model in a three-dimensional manner, and creating a defect isolator model; 5, adding the anti-inflammatory functionalized silica gel macromonomer obtained in the step 3 and a reactive diluent into a mixing tank, adding a cross-linking agent and polyether modified polydimethylsiloxane under mechanical stirring, stirring for 30 minutes, defoaming for 2 hours under 500Pa vacuum, and standing and curing in a darkroom after defoaming; and 6, a multi-material-box DLP photocuring 3D printer is adopted for isolator printing. According to the method, observation interference on the bone nonunion pathological process is fundamentally reduced, and high-fidelity modeling construction is achieved.

The utility model relates to the technical field of 3D printing, in particular to an ink circulation framework of a 3D printer, the 3D printer and a control system of the 3D printer, and the ink circulation framework comprises a spray head, the spray head is provided with an input end and an output end, and the input end communicates with an ink inlet cavity through a spray head flow inlet channel; the output end is communicated with the ink return cavity through the nozzle flow outlet channel; and the flowing ink path is used for communicating the ink return cavity with the ink inlet cavity. According to the ink circulation framework of the 3D printer, the ink circulation framework guides ink in the ink return cavity to the ink inlet cavity through the flowing ink path, and the ink in the ink inlet cavity can flow back to the ink return cavity through the negative pressure air path under the negative pressure effect, so that ink circulation is achieved, it is guaranteed that sufficient ink exists in a spray head, and the ink circulation efficiency is improved. The phenomenon of insufficient ink supply is avoided, airflow vibration in the negative pressure adjusting process is buffered based on the auxiliary negative pressure air box in the negative pressure backflow process, bubbles are reduced, namely, the bubbles are reserved, and continuous and smooth ink output is facilitated.

The utility model relates to the technical field of additive manufacturing, in particular to a one-drag-N optical path system for LPBF forming and a 3D printer. The light path system comprises a first movable mirror base, a first spectroscope, a first linear driving unit and a first reflecting mirror. Wherein the first movable lens base is provided with a first light hole, and the first spectroscope is arranged in the first light hole; the first spectroscope is configured to be capable of dividing a laser beam projected on the first spectroscope into a reflected beam and a transmitted beam; the first linear driving unit can drive the first movable lens base to move linearly. In use, after a laser beam is projected to the first spectroscope, a transmission beam is projected to a first laser demand end, a reflection beam is reflected to the first reflector, and the first reflector reflects the reflection beam to a second laser demand end. The laser beams of one laser can be supplied to the two laser demand ends, the high-power laser can be used, and compared with the mode that each printing device is provided with a low-power laser, the overall cost is lower.