35results about How to "Improve printing success rate" patented technology

The invention relates to a 3D printer capable of printing continuously at an outage and a method for controlling the 3D printer to continue printing at the outage and belongs to the technical field of 3D printing. The 3D printer comprises a power module capable of storing electric energy, an outage detection module used for detecting the power supply state of an external power source, and a control module which controls all components of the printer to switch between the power supply state and the outage state. By means of the method, the printer can use the stored electric energy to record the work state at the outage, and all the components are set to be in the outage state; when power supply is recovered, the printer can be controlled to return to the previous state and continue last work; as a result, reprinting is avoided, consumable items are effectively saved, and the success rate of printing is increased substantially; furthermore, closed-loop control is achieved in cooperation with a displacement detection module, and the accuracy of continuous printing at the outage is further improved. Moreover, the 3D printer capable of printing continuously at the outage is simple in structure, the method for controlling the 3D printer to continue printing at the outage is easy and convenient to implement, and the application range is rather wide.

The invention provides a submicron-precision multi-pin direct writing type 3D printer comprising material cylinders, a nanoscale-locating-precision three-axis platform, a glue dispensing machine and aprinting platform. Print pins are arranged at the front ends of the material cylinders. The glue dispensing machine is connected with the material cylinders through gas pipes. The nanoscale-locating-precision three-axis platform comprises a X-axis displacement platform, a Y-axis displacement platform and Z-axis displacement platforms. The X-axis displacement platform and the Y-axis displacementplatform are used for adjusting the position of a print platform. The material cylinders are installed on the Z-axis displacement platforms and can move up and down along with the Z axis. Imaging systems following the filament discharging process and printing process of submicron-scale printing pins are arranged above the material cylinders on the Z-axis displacement platforms. Each imaging systemcomprises a CMOS camera, a telecentric lens and an objective lens. Compared with the prior art, the submicron-precision multi-pin direct writing type 3D printer adopts capillary glass micro-pins as printing pins and combines the nanoscale-precision locating platform, the multi-material-cylinder structure, a laser calibrator and the imaging systems, so that high-precision multi-material printing can be achieved.

The invention provides an electronic seal calling method which comprises the following steps: when a seal application request is received, splitting a file to be sealed in the seal application requestinto single file pages in a picture format, and storing the single file pages in a preset storage path; Generating a to-be-stamped file in a picture format according to all file pages under the preset storage path, and transmitting the to-be-stamped file in the picture format to an auditing node for auditing; If it is monitored that the file to be stamped transmitted to the auditing node passes auditing, determining a target electronic stamp according to an electronic stamp tag in the stamping application request; And determining a seal stamping area of the audited file to be stamped, callingthe target electronic seal, and stamping the audited file to be stamped in the seal stamping area. The invention further provides an electronic seal calling device and equipment and a readable storage medium. According to the invention, the seal use success rate and the seal use sealing efficiency of the electronic seal can be effectively improved.

The invention discloses a scraper structure and a glue application method. The scraper structure comprises a body and a head. One end of the body is provided with a fastening handle, and the other end thereof is provided with the head. The width of the section of the head gradually decreases. In the glue application method, the head and a printing plate form an entry angle 10-40 degrees and a separating angle 10-40 degrees. In the scraper structure and the glue application method, the head of the scraper is designed a manner wherein the width of the section gradually decreases, so that the bottom of the scraper forms small gathering entry angle and separating angle 10-30 degrees, glue scraping and glue coating processes are smooth and meet hydromechanics principle, scraping thickness non-uniformity and bubbles caused by abrupt changes in sectional area of relative motion of the scraper and glue in conventional metal stencil printing are decreased, printing success rate and controllability are improved, printing quality can be improved, glue waste can be decreased, printing resistance is decreased, and production process convenience is improved.

The invention discloses a preparation method of zirconium oxide ceramic paste and the zirconium oxide ceramic paste thereof. The preparation method of the zirconium oxide ceramic paste comprises the following steps: (1) uniformly mixing and stirring zirconium oxide powder, a macromolecular dispersant and ethanol, and then performing ball-milling, sieving, drying and crushing to obtain mixed powder; (2) mixing and stirring the mixed powder, photosensitive resin and a photoinitiator to obtain zirconia ceramic paste; (3) adding a thixotropic agent into the zirconia ceramic paste in a stirring state, and performing grinding and refining to obtain zirconia ceramic paste, wherein the volume percent of the zirconia powder in the zirconia ceramic paste is 50-70%, and the zirconia ceramic paste prepared by the method has high solid content, high thixotropic property and relatively high stability.

The invention provides a photocuring 3D printing SiCN ceramic precursor material. The precursor material comprises, by weight percentage, 40-75% of a prepared liquid precursor, 20-65% of acrylic active monomers, 0.1-5% of a photoinitiator, 0.1-1% of a light absorber, 0.1-2% of a leveling agent and 0.1-2% of a defoaming agent, wherein the light absorber is a carbon nanotube. A method of applying the precursor material in photocuring 3D printing to obtain a SiCN ceramic material is also provided. According to a formula, it is not needed to add solid components such as ceramic powder and clay. Aproduct has no impurity elements, the ceramic yield is high, and the precursor material is suitable for rapidly preparing SiCN ceramic products of high-precision special-shaped structures and periodiccomplex structures.

The invention discloses a baseplate of a 3D printer. The baseplate of the 3D printer comprises a connecting plate, a PC plate, a hot melting adhesive layer, an anti-bonding pattern, hydraulic extension rods, a level and an automatic drawer device; the PC plate is a main body of the baseplate, and is provided with a buckle on the lower surface; the connecting plate is arranged on the lower surface of the PC plate; magnets are respectively arranged on the connecting plate and the PC plate; the hot melting adhesive layer is arranged on the upper surface of the PC plate; the anti-bonding plate is arranged on the surface of the hot melting adhesive layer; four hydraulic extension rods are provided and in threaded connection with the connecting plate, and antiskid pads are arranged at the lower ends; the level is positioned on the left side of the upper end of the PC plate; the automatic drawer device comprises a switch button, a drawer and an extension mechanism; the extension mechanism comprises a shell, a magnet, an iron core and a copper wire; the magnet and the iron core are arranged in the shell; and the copper wire is wound on the iron core. The baseplate of the 3D printer can perform printing without needing heating, is easy to bond a printing material, is convenient to take parts, simple in structure, safe and environment-friendly, and can effectively increase the printing success rate.

The invention relates to printing color separation equipment, a 3D printing system and a 3D printing method. The printing color separation equipment comprises a main control device, a feeding device,a consumable cutting device, a consumable melting device and a consumable output device; the main control device analyzes consumable information obtained beforehand to generate consumable control information; the feeding device conveys corresponding initial consumables based on material color selecting instructions and feeding instructions; if the main control device detects that the conveying quantity of the initial consumables reaches a consumable quantity, the consumable cutting device is controlled to move a consumable position to cut the initial consumables to obtain cut consumables; theconsumable melting device is controlled to move to the consumable position; the cut consumables are fed in a consumable channel, and are molten with the consumables retained at the last time to obtainmolten consumables; and the consumable output device processes the molten consumables to generate multi-color consumables. A single-nozzle 3D printer can realize multi-color and multi-material 3D printing by using the multi-color consumables corresponding to models to be printed; and the multi-color and multi-material 3D printing precision and stability are guaranteed.

The invention discloses a throat pipe structure for a 3D printer, a nozzle device and a desktop grade 3D printer. The throat pipe structure comprises a heat dissipating cold area and a heating hot area. The heat dissipating cold area comprises a titanium throat pipe outer pipe body and a polytetrafluoroethylene throat pipe inner pipe body. The polytetrafluoroethylene throat pipe inner pipe body issleeved with the titanium throat pipe outer pipe body. The heating hot area comprises a heating block connecting area and a nozzle connecting area. The heating block connecting area is located on theouter side of the heating hot area. The nozzle connecting area is located below the heating hot area. The heating hot area further comprises a heat insulating area connected with the titanium throatpipe outer pipe body so that the range of the heating hot area in the throat pipe structure can be reduced and the extrusion amount of printing materials can be controlled. The throat pipe structure solves the technical problem that the printing effect is poor. The 3D printer is simple in structure, convenient to install, high in precision and stable in quality.

The invention discloses a device for detecting and adjusting a hot bed platform in the printing process of a 3D printer. The device for detecting and adjusting the hot bed platform in the printing process of the 3D printer comprises a fixed shell, a sliding rod, a material storage bin, a discharging spray nozzle, a distance measuring sensor, a fixing nut, a through hole, signal transmission lines,the hot bed platform, a servo spiral push rod, a collecting baffle and a motor box. The device for detecting and adjusting the hot bed platform in the printing process of the 3D printer has the beneficial effects that the material storage bin and the sliding rod are located on the same horizontal plane, so that assembly and disassembly of the device are convenient; the distance measuring sensor is provided with infrared interaction, the distance between the hot bed platform and the spray nozzle is accurately measured, so that detection and leveling of the hot bed platform are convenient; thesignal transmission lines are connected between the device and a control host, so that signals of the sensors can be accurately transmitted to the control host, and it is avoided that the sensor and other work portions of the printer interfere mutually; the top end of the servo spiral push rod is connected with the hot bed platform, and automatic vertical adjustment of the hot bed platform is achieved; the four corners of the collecting baffle are provided with flaky protrusions, so that redundant materials sprayed by a printing spray nozzle can be conveniently collected, cost is saved, and economic benefits are improved.

The invention discloses a powder laying device suitable for metal selective laser melting forming equipment. The powder laying device suitable for the metal selective laser melting forming equipment comprises a device body, the device body is composed of a scraper bottom plate, an adhesive tape and a scraper cover plate, and a plurality of first threaded holes distributed in a linear array mode are formed in the outer side of the scraper bottom plate. A plurality of second threaded holes distributed in a linear array mode are formed in the surface of the scraper cover plate, and first fastening screws are arranged between the interiors of the first threaded holes and the interiors of the second threaded holes. According to the powder laying device suitable for the metal selective laser melting forming equipment, the device body is fixed to an equipment material boot through second fastening screws, under cooperation of a bottom plate concave groove, a cover plate concave groove and a boss, it is guaranteed that through holes have good supporting performance on the adhesive tape, a deformation tolerance space is reserved, it is guaranteed that a production task is smoothly completedunder the condition of local deformation, and stable and uniform powder laying operation is facilitated; and the powder laying device is provided with a rubber soft scraper between a hard scraper anda brush scraper, and the printing success rate is increased on the premise that the forming quality is guaranteed.

The present invention relates to the technical field of 3D printing, in particular to a release mechanism of a 3D printer, comprising a trough, a printing platform is arranged in the trough, the lower surface of the printing platform has a solidified layer, and the upper surface of the printing platform is One side is connected with a support plate through a pin shaft, and the other side of the upper surface of the printing platform is fixedly connected with two supporting columns, and a push plate parallel to the bottom surface of the trough is arranged above the printing platform, and the push plate A push rod is connected to the upper surface, and the push rod is connected to an external lifting device. A 3D printer release mechanism proposed by the present invention is provided with a printing platform that can rotate around one end, so that the solidified layer on the lower surface of the printing platform is gradually peeled off when it is separated from the bottom surface of the trough or the resin in the trough, so that the printing is successful The efficiency is higher and the effect is better, and a reset mechanism that can reset the printing platform is set to ensure the normal progress of the next printing.

The invention discloses a printing processing method and device, electronic equipment and a storage medium, and relates to the technical field of printing. The printing processing method comprises thesteps: acquiring multiple layer slices of a to-be-printed model; determining a connected domain set corresponding to each layer slice according to the image information of each layer slice of the plurality of layer slices; determining a target area of the to-be-printed model according to the position relationship of each layer of slice in the plurality of layers of slices and the connected domainset corresponding to each layer of slice; wherein the target area is an area with defects in the to-be-printed model. In this way, a user can be helped to discover and correct defects in the slice intime, the model to be printed can be printed smoothly, and the printing success rate of printing equipment is increased.

The invention relates to the technical field of printers, and in particular relates to a 3D (third-dimensional) printer with a built-in raw material. The 3D printer comprises a machine shell, wherein rolling shafts are symmetrically arranged on two opposite inner walls in the machine shell; H-shaped wheels sleeve the rolling shafts; the raw material winds the H-shaped wheels; a printing platform is arranged between the H-shaped wheels; and the height from the axis of each rolling shaft to the bottom of the machine shell is greater than the maximal radius of each H-shaped wheel. The 3D printer with the built-in raw material has the beneficial effects that by virtue of the built-in raw material, the space can be saved; the printing success rate can also be improved; the printer is relatively integral and beautiful; the overall printer is hung in the air through upward movement of the raw material; and due to the design, the printer can be applicable to packaging materials with various sizes in the market.

The invention relates to the technical field of ceramic 3D printing, in particular to a preparation method of high-adhesion ceramic slurry for DLP photocuring 3D printing, which comprises the following steps: proportionally preparing UV photocuring monomers containing large-volume side chains or ethyoxyl groups into a UV photocuring premixed solution, and uniformly stirring; a dispersing agent is added into the UV photocuring premixed liquid, then ceramic powder is added, and ceramic slurry is obtained; carrying out ball milling on the ceramic slurry; and carrying out vacuum defoaming on the ball-milled ceramic slurry. According to the preparation method, by adding the UV photocuring monomer containing a large-volume side chain or an ethyoxyl group, the shrinkage rate in the photocuring process is reduced, the adhesion performance of the ceramic slurry to a printing platform base material in the DLP photocuring 3D printing process is improved, and the printing stability and efficiency are greatly improved; the printing success rate is increased by 80% or above compared with that of a traditional UV photocuring slurry system, and application and popularization of the DLP ceramic photocuring 3D printing technology are promoted.

The invention provides a composite 3D printing material containing coffee grounds as well as a preparation method and application of the composite 3D printing material. The composite 3D printing material is prepared from the following raw materials in parts by weight: 10 to 55 parts of modified coffee grounds, 45 to 90 parts of polylactic acid, 1 to 5 parts of polycaprolactone, 10 to 30 parts of polyhydroxyalkanoate and 1 to 3 parts of plasticizer, wherein the modified coffee grounds are obtained by modifying coffee grounds raw materials with a mixed solution containing water-soluble polyester and a coupling agent. According to the method, high-value utilization of the waste coffee grounds can be achieved, environment protection is facilitated, meanwhile, the cost of consumables is greatly reduced, and remarkable social benefits and economic benefits are achieved; and in addition, the composite 3D printing material containing the coffee grounds can well meet the functional requirements of daily 3D printing, the comprehensive performance of printed products is excellent, and the application range is wide.