24results about How to "Print smoothly" patented technology

The invention discloses photocuring 3D printing metal slurry and a preparation method thereof.The photocuring 3D printing metal slurry is prepared from, by mass, 30%-77% of organic monomers, 0.001%-20% of dispersing agents, 0.1%-6% of photoinitiators and 10%-67% of composite powder; the composite powder comprises an organic shell and a metal core. The compatibility of an organic matter shell and an organic monomer of the composite powder in the slurry is better, and the chemical interaction force of the surface is larger, so that the dispersion of the composite powder in an organic monomer solution is promoted, and good stability is provided for the photocuring slurry; the refractive index of the organic matter serving as the shell is close to the refractive index of the organic monomer solution, the refractive index difference between the powder and the organic monomer solution is reduced, the curing thickness of the slurry is greatly increased, and the stable photopolymerization slurry with the good curing characteristic is obtained.

The invention provides ceramic ink-jet 3D printing supporting ink, a preparation method of the ceramic ink-jet 3D printing supporting ink and a ceramic ink-jet 3D supporting printing method, and relates to the technical field of 3D printing. The ceramic ink-jet 3D printing supporting ink provided by the invention comprises the following preparation raw materials in parts by mass: 10-50 parts of solid particles, 40-80 parts of a solvent, 0-9 parts of a dispersing agent and 0-2 parts of a binder, and the mass parts of the dispersing agent and the binder are not 0. The supporting ink provided by the invention is relatively low in cohesiveness and easy to remove after ceramic ink-jet 3D printing is completed, and the integrity of a sample after removal is ensured; in addition, the supporting ink and the solid ink have good matching performance. According to the ceramic ink-jet 3D supporting printing method, the supporting ink and the entity ink are matched to print the mixed supporting structure, the problem that in the ceramic ink-jet 3D printing process, due to supporting cracking, a green body is damaged is solved, and it is guaranteed that printing is conducted smoothly.

The invention belongs to the technical field of digital printing, and particularly relates to a coating ink printing scheme. According to the coating ink printing scheme provided by the invention, first ink and second ink are filled in a multi-nozzle ink-jet printer, and the first ink and the second ink are sequentially sprayed on a transfer printing medium along with the operation of the printer; the first ink comprises a water-based nano polyurethane emulsion; the second ink is transparent ink, and the transparent ink comprises a water-based hot-melt nano polyurethane emulsion; the water-based hot-melt nano polyurethane emulsion accounts for 60-70% of the total mass of the transparent ink; the elongation rate of the water-based nano polyurethane in the water-based nano polyurethane emulsion is 180 to 600 percent; and the elongation percentage of the water-based hot melt type nano polyurethane is 1500 to 1800 percent. According to the printing scheme, rapid printing can be achieved, the pattern transferred to the fabric is complete, operation is easy, the fabric is tightly attached to the first ink (the printed colored pattern), and the pattern does not deform or fall off or is not prone to fading due to rubbing on the fabric.

The invention relates to the technical field of biological 3D printing, in particular to a spray head device, a biological 3D printer and a using method of the biological 3D printer, and the spray head device comprises a moving seat, a suspension frame, an artery blood vessel printing assembly, a vein blood vessel printing assembly and a tissue printing assembly; the movable seat can move along an X axis, a Y axis and a Z axis; the suspension is installed on the movable base and can move along with the movable base. The artery blood vessel printing assembly is installed on the suspension frame and can conduct spraying to form artery blood vessels. The vein blood vessel printing assembly is mounted on the suspension frame and can spray to form vein blood vessels; the tissue printing assembly is installed on the suspension frame and can spray to form human tissue. Complex biological structural bodies such as artificial blood vessels or kidneys can be smoothly printed, the printed artificial blood vessels are rich in structure, different parts forming the artificial blood vessels or kidneys can be printed at the same time, the printing efficiency and the resolution ratio are improved, and the printing cost is reduced. And the performance of the printed complex biological structures such as artificial blood vessels or kidneys is guaranteed.

The invention provides a dual-curable polyoxazolidinone prepolymer and a resin composition for 3D printing, and particularly relates to the technical field of 3D printing materials. The dual-curable polyoxazolidinone prepolymer is prepared by the following steps: carrying out first reaction on dihydric alcohol and diisocyanate to generate an isocyanate-terminated polyurethane prepolymer; carrying out second reaction on the polyoxazolidinone and epoxy resin to generate polyoxazolidinone with isocyanate at two ends; and finally, carrying out third reaction on the polyoxazolidinone and a sealing agent to obtain the dual-cured polyoxazolidinone prepolymer. And the sealing agent is an aminomethacrylate compound. The polyoxazolidinone prepolymer provided by the invention provides excellent toughness through a polyurethane part synthesized by dihydric alcohol, and photo-thermal dual curing is realized through metacrylic acid ester end capping. The dual-curing mode not only improves the crosslinking density and uniformity, but also significantly enhances the mechanical properties, including strength, toughness and durability, of the material, so that the material can be efficiently cured under illumination or heating conditions to form a uniform three-dimensional network structure.

The invention relates to the technical field of 3D printers, in particular to a heat preservation and cooling device and a 3D printer, the heat preservation and cooling device comprises a base, a box body, an air heater, a rotary table heat insulation cover, a nozzle heat insulation cover and a heat dissipation device, the box body is arranged on the base, and the nozzle heat insulation cover and the rotary table heat insulation cover are both arranged in the box body; the nozzle heat insulation cover is fixedly connected with the top of the box body, the rotary table heat insulation cover is fixedly connected with the bottom of the box body, the air heater is arranged on the side face of the box body, and the heat dissipation device is arranged below the box body. The rotary table heat insulation cover and the nozzle heat insulation cover meet the sealing requirement under complex movement, stability and reliability of a movement system are guaranteed, the movement system is isolated from a hot area, the heating space is compressed, the heating waiting time is shortened, the negative influence of heat on the system is reduced, the equipment performance is improved, and the service life of the equipment is prolonged.

The utility model belongs to the field of printers, particularly relates to an adjusting device for a printer nozzle and a printing head, and aims to solve the problems that when a plurality of pieces of paper are printed by the conventional printing head, the height of the printing head is fixed, the distance between the paper and the printing head is increased after the paper is gradually printed, the printing is easily influenced, and the printing quality is reduced. The printing head comprises a frame body and a printing head body, the frame body is in a U shape, a sliding groove facilitating movement of the printing head body is formed in the inner wall of the top of the frame body, the printing head body is arranged below the inner wall of the top of the frame body, and a round hole is formed in one side of the frame body; the position and the height of the printing head body can be conveniently adjusted, smooth printing of paper and printing quality are guaranteed, the practicability of the printer is improved, automatic operation is achieved, the situation of printing errors is reduced, and different printing requirements are met.

According to the N-type TOPCon battery front grid line silver-aluminum paste and the battery, the surface of the aluminum powder in the silver-aluminum paste is coated with the organic modifier, so that the surface oil absorption rate of the aluminum powder is improved, the interaction among the aluminum powder is reduced, the aluminum powder and an organic carrier in the paste have better compatibility, and the service life of the aluminum powder is prolonged. The dispersing agent can be quickly and uniformly dispersed into organic or slurry, so that the agglomeration and the fineness of the slurry are reduced, and smooth printing on a thin-line-width screen printing plate is ensured; meanwhile, the surface of the aluminum powder is coated with organic matter, surface oxidation of the aluminum powder is reduced, flowing of molten aluminum at a low temperature in the sintering process is facilitated, contact and efficiency are improved, the sintered silicon contact surface and silver-aluminum spikes are tiny and large in number, and therefore the VOC and contact performance of the battery are improved, and the service life of the battery is prolonged. Therefore, the problems of grid breakage and silver-aluminum spikes easily caused by aluminum powder agglomeration in the printing process of the existing N-type TOPCon battery front grid line silver-aluminum paste are solved.

The invention discloses a support design method for 3D printing and a 3D printing method. The support design method comprises the steps that a structure with texture patterns and the lower surface smaller than 45 degrees is selected; according to the shape of the outer surface of the to-be-supported design structure, a curved surface or a plane consistent with the shape of the outer surface of the to-be-supported design structure is formed; or, when the structure with the texture patterns in the to-be-printed workpiece is generated on the basis of the original smooth structural surface through the three-dimensional software, the curved surface or the plane corresponding to the to-be-supported design structure is selected from the original smooth structural surface; translating the curved surface or the plane to enable the distance between the curved surface or the plane and the root of the highest convex surface of the texture patterns in the design structure to be supported to be one third to one half of the maximum convex length; and on the basis of the translated curved surface or plane, supporting design is carried out below the curved surface or plane. The supporting design efficiency of the workpiece with the pattern characteristics can be improved, the forming capacity of the workpiece is improved, and the appearance quality of the pattern structure is also improved.

The utility model provides a 3D printer's spray head subassembly, including printing nozzle, heat dissipation subassembly and heating subassembly, the heating subassembly is sleeved outside the printing nozzle, the heat dissipation subassembly is connected with the heating subassembly through adapter piece, there is gap between printing nozzle and adapter piece. According to the utility model, the adapter is arranged on the heat dissipation device, the heating assembly is connected through the adapter, and due to the existence of the adapter, a space can be reserved between the nozzle and the heat dissipation assembly in the heating assembly, so that a consumable channel in the nozzle is separated from a consumable channel of the conveying part; consumable materials can be heated at proper positions in the nozzle, meanwhile, the consumable materials far away from an outlet of the nozzle can be prevented from being fused in advance, and smooth printing is guaranteed.

The invention relates to the field of food, in particular to high-stability food ink and a preparation method thereof. The food ink is prepared from the following raw materials: a coating agent, a solvent, a surfactant, an emulsifier and purified water, wherein the coating agent comprises chitosan, the surfactant comprises monoglyceride fatty acid ester or diglyceride fatty acid ester, and the emulsifier comprises Tween 20 and Span 20; the food ink prepared by the invention is smooth in printing, excellent in adhesion performance on the surface of food after printing, relatively high in storage stability and very good in actual use effect.

The invention relates to the technical field of photovoltaic electronic paste, in particular to solar cell fine grid paste and a preparation method and application thereof. The fine grid slurry comprises the following components: metal powder, glass powder, an organic carrier, a plasticizer and an organic auxiliary agent, the addition amount of the metal powder in the fine grid slurry is 80-95 wt%, the metal powder comprises nano silver powder and micron silver powder, and the weight ratio of the nano silver powder to the micron silver powder is 1: (3-10). The fine grid slurry can be smoothly printed when the opening of a full-opening steel plate is designed to be 10 microns, the problem of poor material spreading caused by the mirror surface of the full-opening steel plate is solved, the viscosity of the fine grid slurry is improved, and meanwhile the ink penetration effect of the fine grid slurry can be effectively reduced.

The invention relates to a preparation method of green flexible silver / silver chloride paste capable of being cured at low temperature, and belongs to the field of flexible biological electrodes, the silver / silver chloride paste is prepared from, by mass, 0.25%-1% of nano silver powder, 20%-50% of micron silver powder, 1%-4% of flake silver powder, 10%-30% of silver chloride powder, 1%-10% of binder, 20%-40% of solvent and 0.5%-5% of auxiliaries, and the preparation method comprises the steps that firstly, the binder is added into the solvent to form a mixed solution; the preparation method comprises the following steps: preparing a mixed solution, adding an auxiliary agent into the mixed solution, finally adding nano silver powder, micron silver powder, flake silver powder and silver chloride powder to form mixed slurry, controlling the viscosity of the mixed slurry to be 60-120Pa. S, adding the mixed slurry into a planetary stirrer, stirring for 30-80 minutes, and carrying out primary dispersion, so as to obtain a mixed slurry; and the mixed slurry obtained after primary dispersion is added into a three-roller mill for secondary dispersion, and the finally obtained silver / silver chloride slurry is suitable for the flexible substrate, non-toxic, harmless, low in cost and simple in process.

The present invention discloses a laser forming process for improving the surface roughness of a fuel pipeline for boosting, including constructing a three-dimensional model of a fuel pipeline for boosting an aircraft engine, processing the three-dimensional model in layers, and designing processing parameters and laser scanning paths, wherein the processing parameters include contour process parameters, upper surface process parameters, lower surface process parameters, and entity process parameters, adjusting the positional relationship between the three-dimensional model and a substrate, generating a final printing file, and performing layer-by-layer powder laying, channel contour, and entity part scanning to finally form a fuel pipeline for boosting. The present invention ensures smooth printing by optimizing contour process parameters; ensures low roughness of the flow channel by optimizing lower surface parameters; in addition, by adjusting the placement of parts, bulges caused by high contour energy input can be avoided, thereby greatly improving the surface roughness of the fuel pipeline for boosting.

The present invention relates to a 3D printing method for a constant line width, the line width being constant even when only one layer is stacked when a discharged material is stacked, and a 3D structure being able to be clearly printed. The method is characterized by comprising the following steps that a synthetic high polymer material contained in an injector is ejected onto a printing bed through a nozzle in an extrusion mode and stacked; in order to produce a thin discharge layer, the nozzle is suspended from the discharged lower layer material to a certain height. A 3D structure is manufactured by printing in such a manner that the material discharged through the nozzle is placed on the lower layer.

The application discloses a curved surface medium inkjet printing method, device, equipment and storage medium, relates to the inkjet printing technical field, and solves the problem that the uneven ink dots on the curved surface medium affect the printing quality when the curved surface medium is printed. The method comprises the following steps: establishing a three-dimensional coordinate system, obtaining a three-dimensional curved surface graph of the curved surface medium, dividing a plurality of different first areas according to the three-dimensional curved surface graph, obtaining the curvatures of the first areas, the curvatures corresponding to different first areas are not necessarily the same, obtaining actual printing data of a second area on the curved surface medium corresponding to the first area according to the curvatures of the first areas, and performing inkjet printing on the surface of the second area according to the actual printing data. Through the curvilinear curvatures corresponding to different second areas, new actual printing data is obtained to print the curved surface medium, the distribution of ink dots on the curved surface medium is controlled, and the printing quality is ensured.

The application discloses a card-shaped object vending machine capable of self-service printing and efficient delivery and a vending method thereof, and belongs to the technical field of vending machines. The vending machine comprises a cabinet body, a front door rotatably arranged at the front of the cabinet body, and a rear door rotatably arranged at the rear of the cabinet body. The cabinet body is characterized in that a translation module is arranged in the cabinet body, a printing module is arranged below the translation module, a lifting module is arranged at the front of the printing module, the translation module comprises a base, a goods shelf is fixedly arranged at the upper portion of the base, goods channels are fixedly arranged symmetrically at the two sides of the goods shelf, a screen is fixedly arranged at the upper portion of the front door, a display window is fixedly arranged at the middle portion of the front door, a goods taking opening is arranged at the lower portion of the front door, and the goods taking opening is located in front of the lifting module. The vending machine can realize the smooth delivery of refrigerator stickers, commemorative badges and other card-shaped objects, and can meet the demand of printing content on the surface of the card-shaped objects.

A preparation method of high-conductivity flexible silver / silver chloride paste capable of being cured at low temperature belongs to the field of flexible biological electrodes, and comprises the following steps: firstly, adding a binder into a solvent to form a mixed solution, then adding an auxiliary agent into the mixed solution, and finally adding nano silver powder, micron silver powder, nano silver wires and silver chloride powder to form mixed paste; the viscosity of the mixed slurry is controlled to be 65 Pa.s to 125 Pa.s, the mixed slurry is added into a planetary stirrer to be stirred for 35 min to 85 min for primary dispersion, the mixed slurry obtained after primary dispersion is added into a three-roller mill to be subjected to secondary dispersion, and finally the silver / silver chloride slurry is obtained and can be sintered after being cured at the low temperature, a flexible substrate film is not damaged during sintering, and the silver / silver chloride slurry can be used for preparing the flexible substrate film. And the flexible substrate film can be moderately softened, so that the silver nanowires are tightly combined with the flexible substrate. The method is suitable for preparing flexible biological electrodes.

The application discloses a trimming device, a control method of the trimming device and a cylindrical battery. The trimming device comprises a fixing mechanism and a grinding mechanism. The fixing mechanism comprises a first driving member and a fixing assembly. The first driving member is configured to drive the fixing assembly to rotate around an axis parallel to a first direction. The grinding mechanism comprises at least two pulleys, a sand belt, a carrier member, a second driving member and a third driving member. An included angle between a plane of a grinding section of the sand belt and the first direction towards the fixing mechanism is α, and the following relationship is satisfied: 40°≤α≤50°. The at least two pulleys are rotatably arranged on the carrier member. The second driving member is connected with the carrier member and is configured to drive the carrier member to rotate around an axis parallel to the pulleys. The third driving member is connected with at least one pulley and is configured to drive the pulley to rotate. The technical scheme can realize rounding of a weld at an edge of a workpiece to be processed, and can remove sharp points or protrusions and other adverse phenomena in the weld area at the edge.

This disclosure presents an ink for glass inkjet printing and its preparation method, comprising the following components by weight: 18-25 parts pigment; 30-40 parts glass powder frit; and 30-50 parts dispersion. The pigment is copper chromium black, and the dispersion includes a solvent, a dispersant, and additives. This ink has low viscosity and excellent flowability, allowing for smooth printing of complex patterns. It effectively suppresses diffusion, and combined with the high blackness of the copper chromium black pigment, it provides high pattern clarity.

The invention belongs to the technical field of ink-jet printing, and particularly relates to ink-jet printer ink which comprises pigment, dye and auxiliaries, the auxiliaries comprise a dispersing agent, a surface active agent, a diffusion drying agent, an anti-blocking agent, an anti-fading agent and a solvent, and the anti-fading agent comprises an antioxidant, a light stabilizer and a metal complexing agent. The dispersing agent is an environment-friendly efficient dispersing agent, the surfactant is a low-foam surfactant, the anti-blocking agent is an organic solvent, and the antioxidant, the light stabilizer and the metal complexing agent are combined with other component molecules in a chemical bonding mode to form a stable complex. The solvent is a high-purity glycol ether compound, and the dispersing agent is a mixture of stearamide and higher alcohol. According to the ink-jet printer ink disclosed by the invention, optimization in the aspects of color stability, water resistance, light resistance and the like is realized through a series of elaborately designed formulas and component combinations.

The present application proposes an enhanced 3D printer, which includes a workbench, on which a transmission mechanism with a printing platform is installed; an internal threaded part with an internal threaded hole is detachably installed on the printing platform, and a reinforcing screw is screwed into the internal threaded hole of the internal threaded part; a driving device for driving the reinforcing screw to rotate is provided on the printing platform; a model is bonded to the printing platform, and a reinforced hole is formed in the model; under the drive of the driving device, the reinforcing screw can reciprocate in the vertical direction, and the reinforcing screw is screwed into the reinforced hole or withdrawn from the model; a scraper in the trough can move from one side to the other side, pushing the solid particles deposited at the bottom of the trough from the working area to the non-working area. The present application also proposes an enhanced 3D printing method. The present application can effectively reduce or even avoid the situation in which the model is cracked or even broken due to the influence of gravity and the bonding force of the release film during the printing process.

This application is a divisional application, and the application number of the original application is 2024103563435. This application discloses a light-curing 3D printer with a disturbance function, on the workbench of which a material tank for containing liquid materials is installed, a disturber is arranged in the material tank, the disturber includes a cylinder fixed in the material tank and a piston slidably installed in the cylinder, and the piston rod is connected to the piston; a driver is installed on the workbench, and the driver can drive the piston to slide in the cylinder through the piston rod, suck the liquid material in the material tank into the cylinder or spray the liquid material in the cylinder, and disturb the liquid material in the material tank. This application uses a disturber to suck the liquid material around the disturber into the cylinder, and spray it in a direction away from the disturber, disturbing and mixing the liquid material, avoiding the sedimentation of solid particles in the liquid material, and avoiding the liquid material from tending to solidify due to the accumulation of irradiated light energy.

The present invention discloses a rapid freezing device for a graphene 3D printer, comprising a base, two groups of support plates are fixedly mounted on the base, top plates are fixedly mounted on the two groups of support plates, a first screw is rotatably mounted between the base and the top plate, a first motor for driving the first screw to rotate is arranged on the top plate, two groups of support rods are fixedly mounted on a screw seat of the first screw, a print head is slidably mounted on one side of the two groups of support rods, a glue outlet nozzle is arranged at the lower end of the print head, and a round rod is fixedly mounted between the top plate and the base. The present invention can cool down the product during the printing process of the product, accelerates the molding speed of the product, makes the product less likely to deform during the printing process, improves the quality of the product to a certain extent, and does not need to perform an independent cooling process on the product after printing, improves the work efficiency to a certain extent, and reduces the work intensity of the staff.