Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

596 results about "Laser printing" patented technology

Laser printing is an electrostatic digital printing process. It produces high-quality text and graphics (and moderate-quality photographs) by repeatedly passing a laser beam back and forth over a negatively charged cylinder called a "drum" to define a differentially charged image. The drum then selectively collects electrically charged powdered ink (toner), and transfers the image to paper, which is then heated in order to permanently fuse the text, imagery, or both, to the paper. As with digital photocopiers, laser printers employ a xerographic printing process. Laser printing differs from traditional xerography as implemented in analog photocopiers in that in the latter, the image is formed by reflecting light off an existing document onto the exposed drum.

Colorful acid and alkali resistant laser printing ink and preparation method thereof

InactiveCN104403412AGood acid and alkali resistanceOvercome the disadvantage that it is easy to produce depletion when mixed with acid and alkaliInksGlycidyl ethersPrinting ink
The invention discloses a colorful acid and alkali resistant laser printing ink and a preparation method thereof. The printing ink is composed of the following components in parts by weight: 0 to 30 parts of butanone, 10 to 30 parts of isopropanol, 2 to 6 parts of curing agent, 10 to 15 parts of pigment, and 10 to 30 parts of glycidyl ether epoxy resin. The glycidyl ether epoxy resin is adopted to produce the printing ink, aliphatic polyamine is further chosen as the curing agent, the acid and alkali resistant performance of the printing ink is strengthened through optimizing the formula, thus the shortage that the colorful laser printing ink is lost when being mixed with acid and alkali is overcome, moreover, the color of the laser printing product is more abundant, and the patterns are more clear.
Owner:SHENZHEN TIANYITONG ANTI-COUNTERFEITING PACKAGING MATERIALS CO LTD

Laser cladding 3D / 4D printing system and method

The invention provides a laser cladding 3D / 4D printing system and method, and the method comprises the following steps: S1, constructing a three-dimensional model of a to-be-printed piece, slicing the three-dimensional model, and generating a two-dimensional interface diagram of each layer of printing; s2, the additive manufacturing material of the current layer is melted through first laser to form a cladding layer; s3, carrying out micro-shaping on the surface of the cladding layer by using second laser, firstly carrying out micro-shaping on rough and hole defect areas on the surface of the cladding layer, and then carrying out point heat source irradiation on the surface of the cladding layer to eliminate residual stress of the cladding layer; and S4, the steps S2-S3 are repeated, the additive manufacturing process of each layer is completed, and a printed piece is obtained. According to the method, ultrafast laser shaping is carried out on the cladding layer in the laser 3D / 4D printing process, so that the problems of residual stress, interface-surface holes, uneven roughness and powder agglomeration and accumulation of the cladding layer of a laser 3D / 4D printing workpiece are solved, and the quality of the laser 3D / 4D printing workpiece is improved.
Owner:HUNAN LUOJIA INTELLIGENT TECH CO LTD

Image adaptive optimization processing method and system for laser printing output

The invention relates to the technical field of image data processing, in particular to an image adaptive optimization processing method and system for laser printing output, and the method comprises the steps: carrying out the multi-scale feature analysis and fusion of an input original scanning image, and obtaining a fused feature distribution mapping matrix; performing adaptive contrast enhancement based on the fused feature distribution mapping matrix to obtain an enhanced contrast image; performing edge feature extraction on the enhanced contrast image by using an improved multi-direction edge detection algorithm to obtain an edge feature image with an enhanced edge; performing adaptive local texture analysis and enhancement on the edge feature image to obtain a texture enhanced image; and carrying out printing adaptability optimization based on the texture enhanced image to obtain a final optimized output image. According to the technical scheme, the quality of the image printed and output by the laser printing equipment is comprehensively and remarkably improved from multiple image processing dimensions.
Owner:HUNAN BIAOTOU ELECTRONIC TECH CO LTD

Pull-type casing pipe machining all-in-one machine

The utility model discloses a traction type casing pipe machining all-in-one machine. Comprising a workbench, a sleeve traction assembly used for achieving sleeve feeding and keeping a sleeve in a linear state, a laser lettering and marking assembly used for achieving sleeve marking and lettering, a hot-pressing assembly used for achieving tooth hot-pressing at the two ends of the sleeve, a cutting assembly used for cutting off the sleeve and a clamping traction assembly used for achieving sleeve moving. The sleeve traction assembly, the laser printing and marking assembly, the hot pressing assembly, the cutting assembly and the clamping traction assembly are all arranged on the workbench, and the laser printing and marking assembly, the hot pressing assembly, the cutting assembly and the clamping traction assembly are sequentially arranged from left to right. The workbench is further provided with a cutting clamping assembly used for clamping the sleeve during cutting and a cutting tightening feeding assembly used for enabling the sleeve to be in a tightening state during cutting, the equipment can directly complete the working procedures of sleeve cutting, hot pressing, lettering and marking of the sleeve, and compared with the prior art, the cost can be reduced, and the efficiency can be improved.
Owner:CHONGQING LISHIDE AUTOMOBILE PARTS CO LTD

Single laser printing device and method capable of modulating line width

The invention relates to a single laser printing device and method capable of modulating line width. The device comprises a focusing unit, a galvanometer unit, a light beam adjusting module and an angle adjusting module, wherein the light beam adjusting module and the angle adjusting module are sequentially arranged in front of laser light paths of the focusing unit and the galvanometer unit; the light beam adjusting module is used for modulating circular laser into long-strip-shaped laser and modulating the length of the long-strip-shaped laser according to the size of a pattern at a printing position when the same straight line is scanned; the long-strip-shaped light beams are always parallel to one another during galvanometer scanning, and laser energy in variable-width lines scanned by the galvanometer is evenly distributed. The angle adjusting module is used for adjusting the line width direction of the long-strip-shaped laser to be perpendicular to the scanning direction of the galvanometer unit. For different positions in each printing area, the laser is modulated into long-strip-shaped laser with the width consistent with the width of an image at the printing position through the light beam adjusting module, then the width direction of the long-strip-shaped laser is perpendicular to the scanning direction of the galvanometer through the angle adjusting module, and scanning of one printing area can be achieved only through one-time scanning of the galvanometer unit. And the printing precision is ensured while the printing efficiency is greatly improved.
Owner:AMSKY TECHNOLOGY CO LTD

Printing-assisted reduced-pressure filtration preparation process of electromagnetic loss metasurface

The invention discloses a laser printing assisted reduced pressure filtration preparation process of an electromagnetic loss metasurface, which belongs to the field of microwave communication, has the advantages of short time consumption and low cost, and is suitable for small-batch design and preparation in product research and development. The electromagnetic loss metasurface template is prepared through a laboratory laser or ink-jet printing technology to obtain the microfiltration membrane mask, operation is convenient and fast, consumed time is short, and cost is low. The electromagnetic loss metasurface is obtained by pattern deposition on a microfiltration membrane mask through a decompression suction filtration process, and finally the electromagnetic loss metasurface is obtained through transfer printing and packaging. The preparation process has wide application prospects in the fields of aerospace, radar communication, medical electronics and the like.
Owner:JINAN UNIVERSITY +1

Graphene neural electrode, preparation method therefor, and use thereof

A graphene neural electrode, a preparation method therefor, and use thereof. The preparation method comprises the following steps: (1) performing laser printing on a polyimide film according to a preset electrode pattern to obtain laser-induced graphene; (2) subjecting the laser-induced graphene to transfer printing to a water-soluble adhesive tape, then arranging a thermoplastic polymer thin film on one side of the laser-induced graphene away from the water-soluble adhesive tape, and then removing the water-soluble adhesive tape, so that the laser-induced graphene is subjected to transfer printing to the thermoplastic polymer thin film to obtain a first prefabricated product; (3) placing the first prefabricated product in a conductive polymer monomer solution for electrochemical polymerization, and forming a conductive polymer layer to obtain a second prefabricated product; and (4) arranging a thermoplastic polymer packaging layer on the conductive polymer layer of the second prefabricated product to obtain the graphene neural electrode. The graphene neural electrode prepared by using the method has excellent flexible characteristics and mechanical properties, high mechanical and electrochemical stability, and low electrochemical impedance, thereby achieving long-term stable signal monitoring in an organism.
Owner:SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI

Multi-laser 3D printing beam spot verification method and system

The invention discloses a multi-laser 3D printing beam spot verification method and system, and belongs to the technical field of laser processing control. The method comprises the following steps: acquiring multi-physical field signal data such as thermal response, stress, pressure and the like of a plurality of laser sources, and performing synchronous fusion to obtain comprehensive physical field data; extracting thermal response data of a laser beam spot area, and performing fusion analysis on the thermal response data and the comprehensive data to obtain position offset characteristic data; performing Fourier transform on the thermal response data, extracting frequency domain characteristic data, and further processing to obtain beam spot frequency characteristic data; generating verification standard data in combination with the self-adaptive thermal response threshold value; fusing external temperature, humidity and interference information to generate environment adaptability data, and obtaining optimized signal processing data; and finally, laser beam spot precision data is obtained. According to the scheme, the stability, the consistency and the intelligent response capability of the multi-laser system in a high-precision manufacturing scene are improved, the printing quality can be improved, the defect rate is reduced, and the service life of equipment is prolonged.
Owner:ZRAPID TECH CO LTD

High-strength and high-thermal-conductivity copper-boron alloy and preparation method thereof

The invention discloses a high-strength and high-thermal-conductivity copper-boron alloy in a high-temperature environment, which comprises the following components in percentage by mass: 2.0-4.0% of boron element and the balance of Cu, the organization structure is composed of copper crystal grains and a boron film, and the boron film is clamped between the copper crystal grains to separate and wrap the copper crystal grains. The invention further discloses a method for preparing the high-strength and high-thermal-conductivity copper-boron alloy, a laser 3D printing technology is adopted, the characteristic of rapid non-equilibrium solidification of laser 3D printing is utilized, a molten pool is controlled at the micron dimension, and the periphery of copper grains is wrapped with a boron phase in a film form through rapid non-equilibrium solidification. The heat conductivity of the copper-boron alloy at 600 DEG C exceeds 200 W / (m.K), the tensile strength exceeds 300 MPa, and the comprehensive performance of the copper-boron alloy in the high-temperature environment is superior to that of a conventional copper alloy.
Owner:ZHEJIANG UNIV

Printer energy consumption optimization control system and method based on artificial intelligence

The invention discloses an artificial intelligence-based printer energy consumption optimization control system and method, and relates to the technical field of printer energy consumption optimization control, and the artificial intelligence-based printer energy consumption optimization control method specifically comprises the following steps: 1, collecting multi-source data of a laser printer, the method comprises the steps of 1, acquiring original data, transmitting the acquired original data to a cloud AI analysis platform or a local edge calculation program for processing, 2, collecting historical data, quantifying the relevance between the comprehensive environmental comfort index and the power consumption of the laser printer, and defining different task processing time periods, and 3, predicting the historical data by using an LSTM prediction model, and according to a prediction result, calculating the power consumption of the laser printer according to the prediction result. According to the scheme, through multi-source data fusion and AI prediction, a weighted comprehensive environment comfort index is provided, multi-parameter cooperative influence is quantized, the future task probability and the environment trend are predicted based on historical data, and the working mode is dynamically adjusted to achieve balance of energy consumption and efficiency.
Owner:JHF TECH GRP CO LTD

In-situ heat treatment laser powder bed melting device and application method thereof

The invention discloses an in-situ heat treatment laser powder bed melting device and an application method thereof, and belongs to the technical field of metal additive manufacturing. The device comprises a forming chamber, a laser powder bed melting system, a heat treatment system and a control system, the laser powder bed melting system comprises a powder laying and feeding system and a laser system, the powder laying and feeding system is used for conveying metal powder into the heat treatment system, and the laser system is used for conducting laser printing on the metal powder in the heat treatment system; the heat treatment system is used for conducting in-situ heat treatment on slices or components formed through laser printing, and the control system is used for controlling operation of all the systems. The laser powder bed melting technology and the heat treatment technology are combined, the forming process and the heat treatment process are alternately carried out, the printing efficiency is improved, high-quality forming is achieved, meanwhile, residual stress can be rapidly eliminated, the mechanical property can be improved, and the forming quality of metal laser powder bed melting large-layer-thickness printing is greatly improved.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Intelligent optimization method and system for printing task of laser printer

The invention provides a laser printer printing task intelligent optimization method and system, and relates to the technical field of data processing, and the method comprises the steps: receiving a first printing task queue of a laser printer, carrying out the task analysis, and determining the task characteristics of each printing task in the first printing task queue; collecting real-time state information of the laser printer, analyzing the real-time state information and task characteristics of the printing tasks, and determining priority labels of the printing tasks in the first printing task queue; printing task scheduling sorting is conducted on all the printing tasks in the first printing task queue according to the priority labels, a second printing task queue is obtained, and the printing tasks are sequentially executed based on the second printing task queue; and monitoring the printing state in real time in the printing execution process, and when the printing state changes, performing scheduling optimization on the second printing task queue again according to the multi-target optimization model, generating a third printing task queue and executing the third printing task queue until the printing task is completed.
Owner:BEIJING CGPRINTECH TECHNOLOGY CO LTD

Component design method of precipitation strengthening type nickel-based alloy capable of resisting laser 3D printing forming cracking

The invention discloses a component design method of a precipitation strengthening type nickel-based alloy capable of resisting laser 3D printing forming cracking, and relates to the technical field of additive manufacturing engineering. According to the method, the Nb source is introduced into the precipitation strengthening type nickel-based alloy with the total content of Al and Ti larger than or equal to 5.5 wt%, the Nb content is precisely regulated and controlled to range from 1.5 wt% to 5 wt%, the stress concentration problem in the solidification process can be effectively relieved, and therefore cracks in the laser 3D printing process are remarkably inhibited. According to the method, forming cracks can be thoroughly eliminated, it can be ensured that the alloy has the excellent high-strength characteristic, meanwhile, the comprehensive mechanical property is greatly improved, and a brand new technical means is provided for preparation of high-precision and high-performance nickel-based alloy components.
Owner:TIANJIN UNIV

Laser additive manufacturing method and laser additive manufacturing device

The invention belongs to the technical field of laser printing, and particularly relates to a laser additive manufacturing method and a laser additive manufacturing device. The laser additive manufacturing method comprises the following steps that S1, a printing material is melted through a melt extrusion structure, the melted printing material is extruded to a bearing platform according to a preset path, and a first additive layer is formed; s2, a metal layer is laid on the first additive layer through a wire feeding structure; s3, modifying the surface of the metal layer through a laser generation structure; and S4, a second additive layer is printed on the metal layer through the melt extrusion structure, and the second additive layer covers and adheres to the metal layer and the first additive layer. The mechanical strength of the resin material can be improved, so that the interlayer bonding strength is high, obvious anisotropy is avoided, the use of a high-strength printing material is avoided, and the metal layer is beneficial to control and reduction of the printing cost.
Owner:SHENZHEN UNIV

System and method for identifying printed product of color laser printer

The invention relates to a color laser printer printed product identification system and method, and the system comprises a scanning module which is used for scanning a printed product printed by a printer to form a first image, and the printed product is provided with a special mark; the image processing module is used for preprocessing the first image to obtain a second image; the transcoding module is connected to the image processing module or the scanning module, and is used for identifying a special mark in the first image or the second image to obtain a single mark matrix representing printing information; and the decoding module is used for interpreting the single mark matrix to obtain printing information corresponding to the printed product. The scanning module captures special marks on the surface of a printed product through a high-resolution imaging technology, and complete extraction of tiny marks is ensured. The image processing module performs preprocessing such as noise reduction, contrast enhancement and geometric correction on an original image, so that the definition and identifiability of a mark are remarkably improved, and interference factors such as paper wrinkles and stains are effectively handled.
Owner:ACADEMY OF FORENSIC SCIENCE

Continuous conveying laser printer for carpet production

The invention relates to the technical field of carpet processing equipment, in particular to a continuous conveying laser printer for carpet production, which comprises a main frame, a guide frame, a conveying driving assembly and a gantry pulley slidably mounted on the surface of the main frame, and a laser printer head is slidably mounted on the surface of the gantry pulley and used for printing patterns on the surface of a carpet. The guide frame is slidably mounted on the main frame, the supporting rail is fixedly mounted on one side of the guide frame, the lead screw assembly and the lifting sliding seat are arranged, the lead screw assembly is used for driving the lifting sliding seat to lift and adjust, and the swing shaft rod is rotatably mounted on the surface of the lifting sliding seat. The conveying driving assembly comprises a pressing box and a wriggling conveying piece. According to the device, through the synergistic effect of double-side guiding clamping and wriggling conveying, steady-state conveying and beat control of a carpet in the printing process are achieved, the tensity and flatness of the surface of the carpet are guaranteed, the phenomena of printing smear and slippage are avoided, and therefore the laser printing precision and the production efficiency are remarkably improved.
Owner:CHANGZHOU HUANMEI CARPET MANUFACTURING CO LTD

Gradient copper-nickel alloy and preparation method thereof

The invention discloses a gradient copper-nickel alloy and a preparation method thereof, and belongs to the technical field of alloy preparation. CuCrZr is laid on the substrate, laser printing is carried out, and a CuCrZr alloy layer is formed on the surface of the substrate; gradient powder feeding printing is carried out on the CuCrZr alloy layer, and circulation is carried out for multiple times; the conveyed powder comprises CuCrZr and GH4169, the content of the CuCrZr is reduced along with the number of times of gradient powder feeding printing, and during last gradient powder feeding printing, only GH4169 is conveyed, printing is conducted, and the gradient copper-nickel alloy is obtained. Through the composition gradient design from CuCrZr to GH4169 and the multi-cycle printing process, collaborative improvement of high strength and high plasticity is achieved, and the product of high strength and ductility is obtained. According to the method, a single component can realize structure-function integration from high thermal conductivity and electrical conductivity to excellent high-temperature strength and corrosion resistance, and the application potential of a material system in different fields is greatly expanded.
Owner:QILU UNIVERSITY OF TECHNOLOGY (SHANDONG ACADEMY OF SCIENCES)

Multi-laser 3D printing equipment

The invention discloses multi-laser 3D printing equipment. The multi-laser 3D printing equipment comprises an additive forming bin; a forming assembly is arranged above the additive forming bin, and the additive forming bin can be connected with the forming assembly in a sealed mode. The additive forming bin is arranged on the conveying assembly and can slide on the conveying assembly. The conveying assembly is arranged on the rack; a powder cleaning assembly is arranged on one side of the additive forming bin; the additive forming bin comprises a forming bin body and a forming assembly arranged in the forming bin body, the forming assembly is connected with the lifting assembly, the lifting assembly can drive the forming assembly to ascend and descend in the forming bin body, and the forming bin body is connected with the lifting assembly in a sealed mode. The forming bin has the beneficial effects that the sealing performance of the forming bin body can be improved due to the fact that the forming bin body is connected with the lifting assembly in a sealed mode, only the forming bin body needs to be subjected to gas washing during gas washing, the space occupied by the lifting assembly is reduced, particles generated by sintering are not prone to entering the connecting part of the forming bin body and the lifting assembly, and the sintering efficiency is improved. And finally, the service life of the lifting assembly is prolonged.
Owner:SUZHOU TIANHONG LASER

Multi-metal material build device using laser 3D printing, and working method thereof

Disclosed in the present disclosure are a multi-metal material build device using laser three-dimensional printing. The multi-metal material build device includes an optical path system, a base plate, a powder collecting module, a left vertical plate, a right vertical plate, a powder falling module, a powder feeding mechanism, a slide rail, a slide connection block, a rear scraper, an L-shaped bracket, a powder storage strip and a front scraper, where the base plate, the left vertical plate and the right vertical plate form a build chamber, the powder collecting module is located at a front end below the base plate, the powder falling module and the powder feeding mechanism are located at a rear side above the base plate, and the powder feeding mechanism is located behind the powder falling module.
Owner:JIANGSU UNIV OF SCI & TECH

Card preparation method, card printing equipment and storage medium

The invention provides an identification card preparation method, identification card printing equipment and a storage medium, and the method comprises the steps: obtaining a plurality of to-be-printed images for preparing a target identification card, the plurality of to-be-printed images being a plurality of first images with the same style but different contents, or a plurality of third sub-images formed by splitting a second image, and then obtaining a plurality of to-be-printed images for preparing the target identification card, the method comprises the following steps: firstly, processing each to-be-printed image to obtain a plurality of target images, then, sending each target image to a corresponding laser printing component, and finally, concurrently controlling each laser printing component to print the corresponding target image on a to-be-printed certificate card to obtain a target certificate card, so that when a plurality of certificate cards need to be printed, the target certificate card is printed on the to-be-printed certificate card. By means of the technical scheme, parallel printing of multiple images corresponding to multiple cards can be achieved through the multiple laser printing components, when a single card needs to be printed on the device, the multiple laser printing components can conduct regional parallel printing on a single image corresponding to the single card, and the card image printing efficiency is improved.
Owner:TAI LI DE SHI DA YIN JI JIANG MEN YOU XIAN GONG SI

Molding method of molybdenum and molybdenum-rhenium alloy material

The invention discloses a forming method of a molybdenum and molybdenum-rhenium alloy material, laser printing of molybdenum and molybdenum-rhenium alloy is carried out by adopting an additive manufacturing technology, and the forming method comprises the following steps: preparing a printing substrate; a middle transition layer is printed on the printing substrate, and the middle transition layer is printed through a first printing strategy; and a forming layer is printed on the middle transition layer, the forming layer is printed through a second printing strategy, and the forming layer and the transition layer are made of the same material. According to the forming method, through the arrangement of the middle transition layer, heat exchange of the forming layer can be promoted, the probability of printing thermal stress concentration and hot crack propagation of the forming layer is reduced, and the printing quality and printing efficiency of the forming layer are improved.
Owner:NUCLEAR POWER INSTITUTE OF CHINA

High toughness titanium alloy-aluminum alloy dissimilar material interface disordering laser additive manufacturing apparatus and method

The application discloses a high-toughness titanium alloy-aluminum alloy heterogeneous material interface disordering laser additive manufacturing device and method thereof, which comprises the following steps: step one, overall planning of laser printing strategy of target part, step two, preparation of laser printing powder, step three, laser printing preparation, step four, printing and forming of titanium alloy part, step five, printing and forming of grain boundary disordering interface part, and step six, printing and forming of aluminum alloy part. The grain boundary disordering interface part is printed and formed by using the grain boundary disordering powder which is formed by mixing the metered aluminum alloy powder and metal B powder, therefore, the in-situ segregation phenomenon of B element at the grain boundary in the laser additive manufacturing process forms the disordering grain boundary layer on the interface ordered metal interface compound grain, increases the grain boundary disordering degree of the intermetallic compound, enhances the dislocation migration ability, reduces the critical stress of dislocation transmission, and thus improves the mechanical properties of the titanium alloy-aluminum alloy heterogeneous material.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Silane crosslinked polyethylene overhead cable material for laser etching and preparation method thereof

The invention discloses a silane crosslinked polyethylene overhead cable material for laser etching and a preparation method thereof. The raw materials comprise a material A and a material B according to a weight ratio of 95: (4-6), wherein the material A comprises the following components in parts by weight: 65-75 parts of LLDPE (Linear Low Density Polyethylene) resin 1, 10-25 parts of LLDPE resin 2, 3-4 parts of a processing aid, 1.9-2.1 parts of silane, 0.095-0.105 part of an initiator and 0.09-0.11 part of an antioxidant; and the material B comprises the following components in parts by weight: 50 parts of LLDPE resin 1, 1.9-2.1 parts of catalyst, 3-5 parts of antioxidant, 49-51 parts of carbon black master batch for laser etching and 5 parts of nano filler. According to the invention, the nano filler and the laser-engraved carbon black master batch are added into the material B, and the chemical reaction between the nano filler and the laser-engraved carbon black master batch is utilized, so that the definition of the extruded silane crosslinked polyethylene overhead cable is not influenced by the content of carbon black during laser lettering. The prepared overhead cable material has the advantages of excellent processability, high extrusion speed and smooth and fine extrusion surface.
Owner:KAIBOT MATERIAL (ANHUI) CO LTD

Laser printing equipment for composite cloth

The utility model discloses laser printing equipment for composite cloth, which relates to the technical field of laser printing equipment and comprises a control box, a moving component, a laser printing machine and a printing platform component. The laser printing machine is located in the control box and connected with the moving assembly. The printing platform assembly is assembled into the control box and located below the laser printing machine. According to the utility model, the storage platform is controlled to move upwards through the single-head air cylinder, and the storage platform drives the garment fabric to move upwards until the garment fabric is clamped between the pressing plate and the storage platform, so that the garment fabric is fixed and limited on the storage platform, the garment fabric is more stable on the platform during printing and is not easy to shake to generate wrinkles, and the printing quality is improved. Therefore, the printing work is smoother, the garment fabric does not need to be straightened repeatedly during the period, and the printing quality and the printing speed are effectively improved.
Owner:SHISHI NIANFA IND & TRADE CO LTD

Optical glass, its preparation method and optical components

This invention provides an optical glass, its preparation method, and an optical element. The optical glass contains the following components in molar percentage: B₂O₃: 5.0%–19.9%; SiO₂: 5.0%–28.0%; La₂O₃: 0.05%–11.5%; Gd₂O₃: 0%–10.0%; Y₂O₃: 3.6%–15.0%; ZnO: 22.5%–60.0%; the refractive index n of the optical glass is... d An Abbe number of υ is above 1.78. d The temperature coefficient of refractive index is 35-45. The optical glass of this invention has a large positive temperature coefficient of refractive index. When used in combination with optical glass having a negative temperature coefficient of refractive index, it can effectively correct temperature drift caused by rapid temperature changes or high-temperature environments, fix the focus, and maintain clear imaging. It is suitable for vehicle-mounted cameras or projectors, copiers, laser printers, and playback devices that generate a lot of heat during use.
Owner:HUBEI NEW HUAGUANG NEW INFORMATION MATERIALS CO LTD

Image processing method and system for laser printer

The invention discloses an image processing method and system for a laser printer, relates to the technical field of image processing, and aims to eliminate detail loss and edge distortion caused by resolution difference by performing printer DPI matching on single-channel image data, and to analyze and perceive image local feature difference through local frequency so as to improve image quality. Adaptive processing strategies are determined for different areas, on the basis, binarization processing is carried out by adopting blue noise jitter and error diffusion technologies, high-frequency texture sharpness is reserved by utilizing the blue noise jitter and error diffusion technologies, and smooth transition of the low-frequency area is optimized by utilizing the error diffusion technologies. And finally, according to a local frequency analysis result, carrying out linear interpolation mixing on two binarization processing results so as to realize accurate combination of processing advantages of different regions. Thus, through multi-link cooperation, image detail reservation and artifact suppression are effectively balanced, and the output quality and adaptability of the laser printer in complex scenes such as images and texts and photos are improved.
Owner:ZHEJIANG CANGTIAN INTELLIGENT INFORMATION TECH CO LTD

Light source adjusting device of laser 3D printer

The application provides a light source adjusting device of a laser 3D printer, comprising a printer main body, a polarizing mirror, a laser, a moving table, a light beam blocking part and a protective channel; the polarizing mirror is arranged in the printer main body, the moving table is arranged on the side of the printer main body, the laser is arranged on the moving table, the light beam blocking part is arranged on the moving table and close to the laser, and the protective channel is arranged on the light beam blocking part. The light source adjusting device of the laser 3D printer effectively increases and improves the adjusting mode of the laser beam, protects the propagation process of the laser beam, greatly improves the printing efficiency and ensures the high-quality printing of the model.
Owner:ANHUI CHUNGU 3D PRINTING INTELLIGENT EQUIP IND TECH RES INST CO LTD +1

Preparation process of PET (Polyethylene Terephthalate) film laser printing coating

The invention provides a preparation process of a PET (Polyethylene Terephthalate) film laser printing coating, and belongs to the technical field of laser printing coatings. 72-75 parts of water-based acrylic resin emulsion, 2-2.5 parts of polydimethylsiloxane, 5-7 parts of silicon-doped titanium dioxide, 1-2 parts of a silane coupling agent KH-570, 2-3 parts of a cross-linking agent vinyltriethoxysilane, 2-4 parts of a coalescing agent propylene glycol phenyl ether, 0.6-0.8 part of a photoinitiator and 0.3-0.5 part of a defoaming agent are put into a double-screw high-speed dispersion machine to be dispersed and left to stand, and a mixture is obtained; s2, carrying out corona treatment on the PET film to obtain a pretreated PET film; and S3, uniformly coating the pretreated PET film obtained in S2 with the mixture obtained in S1, and performing curing treatment to obtain the PET film laser printing coating. The heat resistance of the prepared PET film laser printing coating and the adsorption capacity of the PET film laser printing coating to carbon powder can be effectively improved.
Owner:NANYANG DAZZLE DIGITAL PRINTING MATERIAL CO LTD

Cassette printer for multiple cassette sizes

A laser printer may include one or more printing platforms, each supporting a cassette from the plurality of cassettes while printing occurs on the cassette; one or more cassette hoppers, each receiving at least one of the plurality of cassettes and feeding the at least one of the plurality of cassettes to at least one printing platform; a laser emitting device for emitting a laser beam to print on the plurality of cassettes; and a method comprising: receiving information indicative of a cassette size for the selected cassette, loading the selected cassette on a printing platform, aligning the selected cassette on the printing platform with a focus plane of the laser beam based on the received information indicative of the cassette size for the selected cassette, printing the marking on a printing surface of the selected cassette; and releasing the selected cassette from the printing platform after printing the marking.
Owner:FA TECH DIAGNOSTICS ITAL SRL

Personalized card processing equipment

The invention relates to personalized card processing equipment which comprises a case, and a card issuing device, a card reading and writing device, a laser printing device, a card collecting device and a card carrying device which are arranged in the case, the laser printing device comprises a laser printing module and a card posture adjusting module. The card posture adjusting module comprises a card seat, an X-axis angle adjusting mechanism and a Y-axis angle adjusting mechanism; an output shaft of the X-axis angle adjusting mechanism is connected with one side of the clamping base, and the other side of the clamping base is connected to the second support through a first rotating shaft coaxial with the output shaft. The Y-axis angle adjusting mechanism comprises two groups of lifting mechanisms; each group of lifting mechanism comprises a lifting seat and a lifting driving mechanism; the second support is connected with the corresponding lifting seat through a second rotating shaft; and the first support is connected with the corresponding lifting seat through a sliding structure. The personalized card processing equipment is small and exquisite in size, and different types of cards can be processed.
Owner:GUANGZHOU MINGSEN HEXING TECH CO LTD