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1395results about How to "Increase printing speed" patented technology

Method and apparatus for rapid prototyping using computer-printer aided to object realization

This invention applies a new computer and printer integrated technology to aid forming physical objects rapidly, and the method and apparatus are disclosed to satisfy the market requirements for a quick, reliable, safe, and inexpensive operation. The invention coverts a virtual object stored in the storage device of computer through software that slices the virtual object into many layers. The cross-section of the first layer is sent to a printer or a plotter, and the contour domain is printed or plotted by the printer or plotter. The fluid (not limited to binder) in the printer head is coated onto a layer of uniform distributed porous material which allows the powder and fluid to combine with each other; however, the combining process can be either a natural or an artificial process to enhance the binding force between the fluid and powder. After the first layer is finished, the second layer of powder is uniformly distributed on the first layer, and the contour printing process is repeated. As the printing process is repeated until all slicing layers of the model are finished, the object is stacked layer by layer sequentially. The physical object can be obtained after all the unglued powders are removed. The above-mentioned printing process not only produces monochrome objects, but also produces color objects. The machine includes components of a printer or plotter and its interface card, and x-z axis traversal driven mechanism. The operation platforms include a material supply chamber, a constructing chamber at which powder material is combined with solution, and a recycling hole. A slicing algorithm control software is used to calculate the cross-sectional contour, and the manufacture process is controlled by software and hardware interfaces.
Owner:NAT CHENG KUNG UNIV

Screen printing and digital printing combined printing device and printing method thereof

The invention relates to a screen printing and digital printing combined printing device and a printing method of the screen printing and digital printing combined printing device. At present, no printing method or printing method which is high in printing precision and printing speed exist. The printing device is characterized by comprising a machine frame, a rotating roller, a conveyer belt, a screen printing mechanism and a digital printing mechanism, the conveyer belt is installed on the rotating roller, the screen printing mechanism is installed on the machine frame, the digital printing mechanism is installed on the machine frame, and the screen printing mechanism is matched with the digital printing mechanism. The printing method is characterized in that shell fabric is driven to move through the conveyer belt, the shell fabric is printed through the screen printing mechanism and the digital printing mechanism, and if patterns needing to be printed on the shell fabric include large pieces of patterns, the patterns are printed through the screen printing mechanism; if the patterns needing to be printed on the shell fabric include high-precision patterns, the patterns are printed through the digital printing mechanism. The printing device and the printing method are reasonable in structural design, reliable in performance, high in printing precision and high in printing speed.
Owner:HANGZHOU HONGHUA DIGITAL TECH

Method for achieving high-melting-point material 3D printing through nanometer ink together with laser melting

The invention discloses a method for preparing the nanometer ink through ceramics, metal, semiconductors, glass and other high-melting-point materials, carrying out 3D printing and utilizing the laser heating sintering in the process of printing to obtain 3D devices formed by combining the ceramics, the metal, the semiconductors and other composite. The method comprises the first step of processing raw materials needed to prepare the device into nanometer particles of 1-500nm, the second step of preparing the particles into ink jet printing ink, the third step of carrying out 3D printing by utilizing an improved ordinary ink printer and adopting the laser heating sintering in the process of printing, and the fourth step of achieving the melting and sintering molding of the nanometer particles. According to the method, micron-level precision devices with any complex shape can be directly prepared, the high surface energy of the nanometer particles is utilized, the sintering temperature is lowered, high density is achieved, and a superior property is obtained. The method can be used for manufacturing automobile metal ceramic composite pistons, aviation engine tail pipes, and ceramic bearings and ceramal composite precise components of watches and other precision instruments and for directly printing a circuit board.
Owner:南京鼎科纳米技术研究所有限公司

Melt differential three-dimensional printer

The invention discloses a melt differential three-dimensional printer. The melt differential three-dimensional printer mainly comprises a material melting unit, a micro-droplet jetting unit, a cylindrical-coordinate system molding unit and a rack, wherein a servo motor drives a screw rod to rotate in the material melting unit; a heater, which is fixedly arranged inside a machine cylinder, ensures that granules are entirely plastified through temperature regulation; a molten material is transmitted by the screw rod to the micro-droplet jetting unit; in the micro-droplet jetting unit, the molten material is transmitted into a valve body through a hot runner in a runner plate; a linear servo motor drives a valve needle to do reciprocating motion in the valve body so as to quantitatively and intermittently squeeze the molten material out of a nozzle to form melt micro-droplets; in the cylindrical-coordinate system molding unit, the molten micro-droplets are injected to a bearing table for cooling and deposition molding; the servo motors in the left-right direction and in the vertical direction are respectively engaged with the corresponding screw rod to rotate so as to drive the material melting unit and the micro-droplet jetting unit to move along the left-right direction and the vertical direction; a circumference servo motor drives the bearing table with a worm gear to rotate through a worm rod so as to realize three-dimensional movement under a cylindrical-coordinate system.
Owner:BEIJING UNIV OF CHEM TECH

High-speed photocuring 3D printing device and printing method

ActiveCN105014974AInhibition of attachmentTroubleshoot disruptive technical issuesAdditive manufacturing apparatusEngineeringGlass sheet
The invention discloses a high-speed photocuring 3D printing device and method. The device comprises a liquid pool filled with liquid photosensitive resin, a printing platform and a radiation source. A transparent plate corresponding to the printing platform and the radiation source is arranged at the bottom of the liquid pool. The side, facing the printing platform, of the transparent plate is covered with a transparent anti-bonding coating. The device further comprises a liquid outlet and a liquid inlet which are formed in the side wall of the liquid pool, a pipeline connecting the liquid outlet and the liquid inlet, and a drive unit which is arranged on the pipeline and used for driving the liquid photosensitive resin to flow among the liquid outlet, the liquid inlet and the pipeline. A curing window is coated with the transparent anti-bonding coating, and therefore the problem that the curing photosensitive resin is bonded and attached to a glass plate due to excessively fast laser radiation is avoided. Pipelines promoting flowing of the liquid photosensitive resin are arranged on the two sides of a printing area, the mobility of the photosensitive resin near the printing area is improved, supplementing of the photosensitive resin is accelerated, and rapid printing of the SLA is achieved.
Owner:苏州智能制造研究院有限公司

Three-dimensional color printing device and method

The invention discloses a three-dimensional color printing device and method. The three-dimensional color printing device comprises a print area, a feeding system, a nozzle group, a moving mechanism and an automatic control system, wherein the print area is provided with a forming plate and a forming work pool, and the forming plate is provided with a lifting mechanism which is used for drawing a workpiece curing layer; the feeding system comprises a support material feeding box and a solid material feeding box and is used for supplying print raw materials for the nozzle group; the nozzle group comprises at least one solid material nozzle and a support material nozzle, the solid material nozzle is connected with the solid material feeding box of the feeding system through a premixer, and the support material nozzle is connected with the support material feeding box of the feeding system; andthe moving mechanism is provided with motors and guide posts / rods on the X-axis direction, the Y-axis direction and the Z-axis direction and is used for driving the nozzle group for performing mobile printing on the three-dimensional direction. The three-dimensional color printing device has the characteristics of being high in print accuracy and smooth and clean in surface of formed products and can realize color printing and printing of different photosensitive materials.
Owner:QINGDAO ACADEMY OF INTELLIGENT IND

Flexible preprinting cardboard box, production method and production equipment thereof

The invention discloses a flexibly pre-printed paper box, a manufacture method and a manufacture equipment thereof; the paper box has a box body consisting of a printed sheet, corrugated paper, inner paper and in some cases core paper; color patterns on the printed sheet are flexibly printed on the printed sheet before the paper box is manufactured. The manufacture method consists of a manufacture method of flexibly printed paper sheet and a manufacture method of the paper box; firstly the color patterns are manufactured on the printed sheet with a rotary flexographic press; then bright oil is applied, and then the printed sheet, the corrugated paper and the inner paper are made into the paper box by adopting a corrugated paper manufacture device; some paper box also comprises the core paper. The manufacture device consists of the rotary flexoographic press, the corrugated paper manufacture equipment and a die-cutting machine. Adopting the method and the equipment of the invention, the manufactured paper box is green and environmental protective, nice in printed patterns, high in compressive strength, convenient in lifting and low in reject rate; compared with paper boxes which are printed with offset printing and directly with flexible plate of the same quality requirement, the paper box of the invention has lower cost.
Owner:保定中士达包装有限公司
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