31results about How to "Achieve multi-color printing" patented technology

The invention provides a preparation method and a product of full-color carbon dots for multi-color fluorescent printing. Citric acid is used as a single carbon resource, a nitrogen-containing compound is added, and a solvothermal reaction is carried out for 6-8 hours for obtaining a full-color carbon dot mixture. The fine separation of blue, green, yellow and orange fluorescence carbon dots can be realized through the regulation and control of the volume ratio of methanol to dichloromethane by using a column chromatography method. The obtained carbon dots have excellent water solubility, light stability and luminosity, so that the obtained carbon dots can be used to prepare multi-color fluorescent ink, and multi-color printing is realized. The preparation process provided by the inventionis simple, the repeatability is strong, the reaction condition is mild, and the product has excellent stability and practicability.

The invention discloses preparation methods and applications for a terpyridine compound and a terpyridine metal complex. The preparation method for the terpyridine compound comprises the following steps: subjecting carbazole, bromohexane and a sodium hydroxide aqueous solution with the concentration of 50% to a substitution reaction in a DMSO solvent system at 50 DEG C; subjecting a compound 1 andNBS to a regioselective bromination reaction in a dichloromethane solvent system at 25 DEG C; subjecting bromobenzaldehyde, trimethylsilylacetylene, cuprous iodide and (beta-4)-platinum to a Sonogashira coupling reaction in a nitrogen gas environment and a dry diisopropylamine solution system at 80 DEG C; subjecting a compound 2, a compound 3, cuprous iodide and (beta-4)-platinum to a Sonogashiracoupling reaction in a nitrogen gas environment and a dry diisopropylamine and tetrahydrofuran solution system; and subjecting an alkyne-containing compound 4, diacylpyridine and potassium hydroxideto a Krohnke intermediate cyclization process reaction in an ethanol solvent system at 25 DEG C. The preparation method for the terpyridine compound provided by the invention has simple synthetic steps and mild conditions, and realizes multi-color printing and encrypted printing under visible sunlight.

The invention discloses tandem connection equipment of 3D printer consumables. The tandem connection equipment comprises a supporting frame, wherein a first threading mechanism and a second threadingmechanism are mounted on the supporting frame; the first threading mechanism and the second threading mechanism respectively lead a strand of wire consumables to be subjected to tandem connection; a spacer region between the first threading mechanism and the second threading mechanism is a hot connection region; the first threading mechanism and the second threading mechanism can convey the wire consumables to the hot connection region, and complete tandem connection in the hot connection region; and the first threading mechanism and the second threading mechanism can convey the wire consumables subjected to the hot connection towards the outside along a direction from the first threading mechanism to the second threading mechanism. The tandem connection equipment realizes recycling of residual or redundant 3D printer consumables; furthermore, by the adoption of the technical scheme provided by the invention, multi-color printing of a common 3D printer can be also realized; and the problem of single color of a pattern printed by the existing common 3D printer is solved.

The invention relates to a 3D printing system for array forming, which belongs to the technical field of rapid prototyping, and specifically relates to a 3D forming system capable of array printing products. It includes an array planar forming mechanism, a wire extrusion mechanism, a feeding conduit, a Z-direction transmission mechanism, a printing platform, a printer casing and a printing platform fixing seat; the nozzles in the array planar forming mechanism are composed of multiple detachable nozzles Different detachable nozzles are fixedly connected by bolts to form an array nozzle; the wire extrusion mechanism includes a feeding drive motor, a driving gear, a splitter train, a driven feeding wheel, and a driven feeding wheel support seat, splitter train support seat and feeding drive motor support seat; the printing platform fixing seat for fixing the printing platform is arranged on the printer shell. The invention is low in cost, high in efficiency, energy saving, strong in practicability, suitable for mass production, and worthy of popularization.

The invention relates to a cylindrical coordinate 3D printer capable of simultaneously printing with multiple nozzles. It includes an external meshing precision planetary gear mechanism, a telescopic cantilever beam mechanism, a Z-axis motion mechanism, and a feeding mechanism; the external meshing precision planetary gear mechanism is composed of a sun gear, a planetary gear, a support block, a reinforced ring and a disc-shaped working platform; the telescopic cantilever beam mechanism includes a nozzle, a feeding motor, a Z motion block, a polar axial drive motor, a polar axial ball screw and a limit block; the Z axis motion mechanism includes a Z drive motor, a Z The supporting frame of the moving mechanism, the Z-directing ball screw, the planetary gear drive motor and the motor seat; the feeding mechanism includes a feeding wheel and a feeding wheel supporting frame. The printing of the polar coordinate plane is realized through the external meshing precision planetary gear mechanism and the telescopic arm beam mechanism, and the Z-axis control mechanism realizes the Z-direction movement, thereby realizing the 3D printing movement of the nozzle. Multi-nozzle processing at the same time.

The invention discloses a method for suspending refueling of a 3D printer. The method is that the control system of the 3D printer continuously inquires whether a suspending refueling instruction is received during the model printing process. If the suspending refueling instruction is received, the control system The system suspends the model printing command and executes the subsequent suspending refueling work. If the suspending refueling command is not received, the control system executes the model printing command. In the process of model printing, when the material is insufficient, the material can be replenished to improve the utilization rate of the material and the finished product rate of the model; at the same time, by adding the pause material change command at the position where the color needs to be changed in advance in the printing model program command, you can During the printing process, different color materials can be replaced at the specified precise position of the model according to the color change of the model, so as to realize multi-color printing with a single nozzle.

The invention discloses a consumable serial connecting method capable of realizing color printing of a 3D printer. The method comprises the following steps: (A) a wire consumable a with a color as delta and a length as L1 is selected; a wire consumable b with a color as gamma and a length as L2 is selected; and the lengths of the wire consumable a and the wire consumable b are calculated accordingto a size of a printed image; (B) the wire consumable a and the wire consumable b are determined to enter the 3D printer in sequence; (C) the wire consumable a is leaded into a second wire stringingmechanism; and the wire consumable b is leaded into a first wire stringing mechanism; (D) a power supply part of a heating mechanism drives a heat source body to move to a heat connecting area; (E) the wire consumables a and b are conveyed to move to the heat connecting area by the first wire stringing mechanism and the second wire stringing mechanism; (F) the power supply part of the heating mechanism drives the heat source body to the heat connecting area; (G) free ends of the wire consumable a and the wire consumable b are thermally connected; and (H) after thermal connection in the step (G) is finished, the wire consumables a and b are stood for a period of time.

The invention provides manual tandem connection equipment for 3D printer filament consumables. The equipment comprises a casing, wherein a handle, a filament cascading device, a heating mechanism, a drive mechanism and a lifting mechanism are mounted in the casing; the filament cascading device comprises a first filament cascading mechanism and a second filament cascading mechanism, the first filament cascading mechanism and the second filament cascading mechanism are concentrically arranged and distributed at an interval, a to-be-cascaded filament consumable is guided into each of the first filament cascading mechanism and the second filament cascading mechanism, the spacer region between the first filament cascading mechanism and the second filament cascading mechanism is a heat joiningregion, push force is produced when the handle is moved, the drive mechanism receives the push force produced during movement of the handle and transmits the push force to the first filament cascadingmechanism and the second filament cascading mechanism, the first filament cascading mechanism and the second filament cascading mechanism convey the filament consumables to the heat joining region under the action of the push force, cascading is completed in the heat joining region, the lifting mechanism receive push force produced during movement of the handle and drives the heating device to move up or down under the action of the push force, and the heating device is used for providing heat energy required by heat joining in the heat joining region.

The invention discloses a seamless cascading method for filament consumables capable of realizing color printing by a 3D printer. The method comprises steps as follows: A, a filament consumable a withthe color of delta and the length of L1 and a filament consumable b with the color of gamma and the length of L2 are selected, and the lengths of the filament consumable a and the filament consumableb are calculated according to the volume of a print image; B, the filament consumable a and the filament consumable b enter the 3D printer sequentially; C, the filament consumable a is led to a firstfilament cascading mechanism, and the filament consumable b is led to a second filament cascading mechanism; D, a handle is moved, a push part of the handle pushes a pushing component to move, the pushing component moves and enables a moving component to move, and the moving component moves and pulls a heating mechanism to move towards a heat joining region; when the heating mechanism is locatedin the heat joining region, a fixing component locks and fixes the heating mechanism, and besides, a linkage part of the handle drives a driving mechanism to move and drives a filament cascading device to move to convey two strands of to-be-cascaded consumables to the heat joining region.