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68results about How to "Guaranteed printing quality" patented technology

Printing roller pasting material detection device

The utility model discloses a printing roller pasting material detection device, relates to the technical field of printing equipment, and mainly relates to a first sliding rail, two moving parts slidably connected to the first sliding rail, detection cameras fixed to the moving parts and distance measuring sensors arranged at the two ends of the first sliding rail. The distance measuring sensor is used for measuring the sliding distance of the detection cameras on the first sliding rail, each detection camera correspondingly irradiates a cross curve on one side of the pasting material, the detection cameras are connected with a display screen for observing images, and the distance measured by the distance measuring sensor is displayed on the display screen. The method and the device have the effect of high positioning detection precision during mounting of the attached material.
Owner:HANGZHOU TIANDI PRINTING CO LTD

Method for dynamically adjusting printing speed

The invention discloses a method for dynamically adjusting the printing speed. The method comprises the steps that a three-dimensional model file is obtained and then preprocessed, and an initial printing parameter set is defined; performing hierarchical processing on the model by using the parameter set and generating path information; setting a speed factor of a corresponding layer based on the complexity, and calculating an actual printing speed in combination with the initial printing speed; using the calculated actual printing speed as the execution speed of the current layer; in the printing process, the state is monitored, and the printing time and quality feedback of each layer are recorded; dynamically adjusting a speed factor according to the collected data so as to optimize the printing speed of a subsequent layer; and the updated speed factor is applied to the new layer printing preparation, and circulation execution is carried out until model printing is completed. According to the method, the printing speed is automatically adjusted according to the geometrical characteristics of each layer, the printing efficiency is improved, the printing quality is guaranteed, the method is particularly suitable for printing tasks of complex geometrical structures, and the 3D printing process is more intelligent and efficient.
Owner:SHENZHEN ELEGOO TECH CO LTD

Z-axis zeroing method and 3D printing equipment

The invention relates to the technical field of 3D printing, in particular to a Z-axis zeroing method and 3D printing equipment. The Z-axis zeroing method comprises the steps that a printing head and a printing platform are controlled to get close, and when the printing head makes contact with the printing platform, approaching operation is stopped; the printing head and the printing platform are controlled to be far away, and when the printing head and the printing platform are separated, far-away operation is stopped. Through a pre-pressing lifting mechanism that the printing head and the printing platform firstly abut against each other and then are separated from each other, deformation errors caused by tiny deformation of abutting contact of the printing head and the printing platform can be eliminated, Z-axis high-precision self-adaptive zeroing is achieved, and due to the fact that the deformation errors caused by contact deformation of the printing head and the printing platform are eliminated, the self-adaptive zeroing efficiency is improved. Therefore, the accuracy of the Z-axis return-to-zero position is improved, the printing quality of the first layer during printing can be ensured, the printing effect of the subsequent layers is also effectively guaranteed, and the precision, efficiency and quality of 3D printing are improved.
Owner:SHENZHEN ANYCUBIC TECH CO LTD

Medical polymer material 3D intelligent printing method based on selective laser sintering process

The invention relates to a medical high polymer material 3D intelligent printing method based on a selective laser sintering process. The method comprises the following steps that optimal initial process parameters are recommended based on material characteristics and part requirements; carrying out processing according to the optimal initial process parameters, and monitoring a processing material in real time through a sensor; if machining defects are monitored, an AI model is adopted to calculate and adjust technological parameters, and meanwhile, local repair is carried out on the detected defects; after printing of each layer is completed, the technological parameter database is updated, and technological parameters of subsequent layers are optimized until the machining process is finished; in the printing process, once defects are monitored, the AI model can quickly calculate and adjust process parameters, manual intervention is not needed, and the time for finding and solving problems is greatly shortened; meanwhile, the reinforcement learning algorithm can continuously learn and optimize a process parameter adjustment strategy, so that adjustment is more accurate and efficient, and repeated printing and repair time caused by unreasonable parameters are reduced.
Owner:JIANGXI KANGGUYUN TECH CO LTD

Material adding device for 3D printer

The utility model relates to the technical field of 3D (three-dimensional) printers, and discloses a material adding device for a 3D printer, which comprises a support, a motor mounted on the support, a turntable mounted on an output rotating shaft of the motor and at least two abutting plates fixedly connected with a rotating shaft, one end of the rotating shaft is rotatably connected onto the turntable, and the other end of the rotating shaft is rotatably connected onto the rotating shaft. Symmetrical sliding grooves are formed in the abutting plate, a sliding block and a control pipe are connected into each sliding groove in a sliding mode, the control pipe is fixedly connected to the support, a pushing assembly used for pushing the sliding blocks to move in the sliding grooves is arranged on the control pipe, the sliding blocks move in the sliding grooves through the pushing assembly, then the sliding blocks abut against the inner wall of the material roller, and therefore the material roller can be fixed to the inner wall of the material roller. The material roller and the control pipe are coaxially fixed, the material roller can drive the rotating shaft to rotate on the rotating disc through the abutting plate, consumables on the material roller and the rotating shaft can coaxially rotate for discharging, the situation of eccentric discharging of the material roller is avoided, the material roller can conduct uniform discharging, and the printing quality of the printer is guaranteed.
Owner:NINGBO XINGTENG INTELLIGENT TECHNOLOGY CO LTD

A machine body structure and a printer

The application discloses a body structure and a printer. The body structure comprises a casing and a printing assembly. The mounting cavity of the casing has a first bottom wall surface and a support surface arranged at intervals in the thickness direction of the body. The printing assembly comprises a print head located in the mounting cavity. The lower edge of the printing area is located between the first bottom wall surface and the support surface or is lower than the first bottom wall surface. The consumable box can be supported on the support surface, and the bottom surface thereof is located between the support surface and the first bottom wall surface or is flush with the support surface. That is, part of the consumable box is accommodated in the space between the support surface and the first bottom wall surface, so that the body structure can be adapted to consumable boxes with different thickness sizes, and the versatility of the body structure is improved. The body structure of the application also ensures that the printing paper is always located in the printing area in the thickness direction of the body, avoids offset printing or empty printing, and guarantees the printing quality.
Owner:WUHAN JINGCHEN INTELLIGENT IDENTIFICATION TECH CO LTD

Cleaning device and cleaning method for screen printing steel mesh

The invention relates to the technical field of screen printing steel mesh cleaning, and discloses a cleaning device and method for a screen printing steel mesh. The cleaning device comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a side plate, the upper surface of the bottom plate is fixedly connected with a baffle, and the upper surface of the baffle is fixedly connected with a hydraulic press; the outer wall of the hydraulic press is fixedly connected with a supporting shell, the output end of the hydraulic press is fixedly connected with a connecting block, the outer wall of the connecting block is fixedly connected with a first connecting shaft, the outer wall of the first connecting shaft is rotationally connected with a connecting piece, and the outer wall of the connecting piece is rotationally connected with a clamping jaw. The hydraulic press drives the connecting block to move, the connecting block drives the first connecting shaft to move, the first connecting shaft enables the connecting piece to rotate, and the connecting piece drives the clamping jaw to clamp and fix the silk-screen steel mesh to be cleaned, so that the silk-screen steel mesh can be clamped to ensure that the silk-screen steel mesh is kept stable in the cleaning process; and the phenomenon of position deviation or instability possibly occurring in the cleaning process is effectively avoided.
Owner:KUNSHAN SHENGNUOTONG ELECTRONIC TECHNOLOGY CO LTD

A label printer with self-adjusting function

This invention belongs to the technical field of label printing equipment, and specifically relates to a label printer with a self-adjusting function, comprising an upper casing and a lower casing. A drive rod is rotatably mounted on the front side of the interior of the lower casing. A push roller sleeve is fitted onto the rod wall of the drive rod. A top plate is provided inside the lower casing to cooperate with the push roller sleeve. A moving gear is fitted onto the rod wall of the drive rod. A stationary gear meshes with the moving gear and rotates on the inner wall of the lower casing. This invention can reduce the waste of ribbon consumables through adaptive adjustment when the thermal transfer printhead is powered on. It can also utilize recycled release paper, combined with an adhesive pad for on-site adhesive application of the label paper, changing the traditional label paper roll design. There is no consumption of the release paper substrate. Combined with the design that reduces ribbon consumption, it can reduce the frequency of changing label paper rolls and ribbons during printing. It is convenient to use and has a compact and aesthetically pleasing overall design.
Owner:SHENZHEN MEIYICHENG TECH CO LTD

A printing machine suction device

A calendering machine sucking device, it includes sucking box, the top opening of the sucking box is connected with cloth guide roller through bearing assembly, the outer surface of the cloth guide roller is fixed with spiral distributed brush, the top of the sucking box is connected with one end of first bellows through flange, the other end of the first bellows is communicated with the air inlet of fan, the air outlet of the fan is connected with the top end of second bellows through quick release joint, the bottom end of the second bellows is detachably connected with silk screen cylinder through clamp, the bottom of the silk screen cylinder extends to the inner cavity of water storage bucket, and the water body that submerges the bottom of the silk screen cylinder is filled in the water storage bucket, the device has novel structure, ingenious idea, increases fan, water storage bucket and silk screen cylinder and removes the impurities such as flower hair on the grey cloth, the device has good hair sucking effect, good dustproof effect, product quality is improved, and the situation of printing after printing is obviously reduced.
Owner:YUYUE HOME TEXTILE CO LTD +1

Printing ink suitable for printing luminescent layer of electroluminescent device and preparation method thereof

The invention belongs to the technical field of new-generation printing ink, and relates to printing ink suitable for printing a luminescent layer of an electroluminescent device and a preparation method. The printing ink suitable for printing the luminescent layer of the electroluminescent device is mainly prepared from the following raw materials in parts by mass: 0.5-5 parts of an electroluminescent material, 20-45 parts of a solvent for the electroluminescent material, 15-32 parts of water, 5-20 parts of synthetic resin, 15-30 parts of a solvent for dissolving the synthetic resin, 0.5-3 parts of a surfactant and 0.5-3 parts of a pH regulator, the electroluminescent material is formed by compounding DNA, polyaniline and a rare earth europium complex. The printing ink disclosed by the invention has wide adaptability to printing materials, is simple in preparation process, can be widely applied to printing on the surfaces of various PET films, silicon wafers, glass and paper materials, is firm in adhesion and not easy to fall off, and can realize a high-resolution and high-precision printing effect.
Owner:BEIJING INSTITUTE OF GRAPHIC COMMUNICATION

Identification printing equipment for ceramic resistor

The invention discloses identification printing equipment for a ceramic resistor, and relates to the field of code spraying and printing. According to the technical scheme, the device comprises an equipment box, a feeding assembly and a receiving assembly are assembled on the two sides of the equipment box correspondingly, and the feeding assembly and the receiving assembly are used for feeding and receiving correspondingly; the code spraying mechanism is assembled on the equipment box and is used for spraying and printing; the material guide groove is fixed on the equipment box and is used for guiding materials; the rotary adsorption mechanism is assembled below the material guide groove and is used for adsorbing the material belt; the acquisition unit is arranged on the equipment box and is used for acquiring working data in real time; and the quality analysis module calculates a code spraying quality index based on the work data formulation and compares the code spraying quality index with a preset code spraying quality index threshold value to judge whether the code spraying quality index is abnormal or not, when the material belt passes through the material guide groove, the material belt is rotationally adsorbed and fixed through the rotary adsorption mechanism, and the material belt passes through the material guide groove. The material belt conveying stability is improved, and the code spraying quality is guaranteed.
Owner:宣城市东科电器有限公司

Printing precision conversion method and device, equipment and storage medium

The invention discloses a printing precision conversion method, device and equipment and a storage medium, and relates to the technical field of ink-jet printing. The method comprises the following steps: firstly, determining whether conversion can be carried out or not according to whether a first ink point number and a second ink point number corresponding to original printing precision corresponding to an original image and printing precision (to-be-printed precision) of actual printing equipment are consistent or not; if yes, original image dot matrix data corresponding to the original image are converted into actual printing image dot matrix data according to a preset conversion rule. The converted dot matrix data of the actual printing image is suitable for actual printing equipment for printing the image in precision, so that the image printing quality is ensured. The PRN file does not need to be regenerated according to the printing precision of the actual printing equipment, so that the processing time of the image data can be greatly saved, and the printing efficiency is improved.
Owner:SHENZHEN HOSONSOFT CO LTD

Wrinkled digital printing nylon taffeta fabric

The utility model discloses a wrinkled digital printing nylon taffeta fabric, and relates to the technical field of fabrics. The key points of the technical scheme are as follows: the touch pad comprises a base layer, a plurality of prints are fixedly connected to the base layer, a plurality of corrugated sections with wavy sections are formed on the base layer, and contact pieces located between the adjacent corrugated sections are fixedly connected to one side, far away from the prints, of the base layer; the thickness of the two ends of the contact piece in the length direction is larger than that of the middle portion of the contact piece, the cross section of the middle portion of the contact piece is in a wave shape, and a plurality of through holes are formed in the base layer, and the through holes and the patterns are arranged in a staggered mode. And the nylon profiled fibers ensure the wear resistance of the fabric and improve the overall ventilation effect of the fabric at the same time.
Owner:JIANGSU HONGHUA FLEXIBLE SUPPLY CHAIN CO LTD

3D printer Z-axis coaxiality decoupling assembly

The Z-axis coaxiality decoupling assembly of the 3D printer comprises an upper plate, a middle plate and a lower plate which are arranged in a stacked mode from top to bottom, first sliding structures are installed between the upper plate and the middle plate at intervals, and second sliding structures are installed between the middle plate and the lower plate at intervals; the sliding direction of the first sliding structure and the sliding direction of the second sliding structure are both horizontally arranged and perpendicular to each other. Therefore, movement interference in the X-axis direction and the Y-axis direction is effectively decoupled through the first sliding structure and the second sliding structure which are horizontally arranged, extra force and moment generated by the coaxiality problem are solved, extra vibration or noise is reduced or even avoided, abrasion is reduced, stable Z-axis movement is guaranteed, the service life of the mechanism is prolonged, and the printing quality is guaranteed.
Owner:ZHONG XIAN SAN WEI KE JI (SU ZHOU) YOU XIAN GONG SI

Intaglio printing machine for the printing of self-adapting multi-thickness packaging material

ActiveCN224644466UImprove adaptation stabilityavoid sudden stress
The utility model provides a kind of self-adapting multi-thickness packaging material printing's intaglio printing machine, it is related to printing machine technical field, including bottom plate, further include: self-adapting printing assembly, self-adapting printing assembly includes support seat connected on bottom plate, support seat is provided with moving seat inside, servo motor is installed on moving seat, in the utility model, servo motor drives rubber roller rotation, cooperation plate cylinder is completed printing, when material thickness changes, moving seat slides along guide rod, telescopic spring is adaptively buffered adjustment, simultaneously, first rotating block is linked with second rotating block, auxiliary moving seat stable displacement, ensure that rubber roller and plate cylinder pressure adaptation, in auxiliary printing assembly, the scraper supported by support plate is close to plate cylinder, scrapes extra ink, guide rod guarantees that moving seat slides smoothly, fixed seat provides fulcrum for rotating block, realizes the self-adapting stable printing to different thickness materials, guarantees pressure adaptation and printing quality.
Owner:GUI YANG BAO LIAN YIN WU YOU XIAN GONG SI

Rosin-based water-based antibacterial ink and preparation process thereof

PendingCN119614014AImprove printing effectGood antibacterial functionInksPolyesterPolymer science
The invention discloses rosin-based water-based antibacterial ink and a preparation process thereof, and belongs to the technical field of ink. The rosin-based water-based antibacterial ink is prepared from the following components in percentage by weight: 15 to 20 percent of water-based heat-resistant resin, 25 to 30 percent of composite pigment, 2 to 3 percent of green antibacterial agent, 6 to 8 percent of additive and 40 to 50 percent of deionized water, the water-based heat-resistant resin is obtained by polymerizing rosin modified resin, an emulsifier and acrylate, the composite pigment is a polyester carbon black composite material, and the auxiliaries comprise a dispersing agent, a thickening agent, a defoaming agent and a preservative. According to the technical scheme, the environment-friendly development requirement is met, meanwhile, the rosin-based water-based antibacterial ink further has good adhesion performance and antibacterial performance, the antibacterial effect is good, the antibacterial duration time is long, and the rosin-based water-based antibacterial ink can be widely applied to the field of various printed products such as tissue packaging.
Owner:YUNNAN XILE TECH CO LTD

Processing box

The utility model provides a processing box. The processing box comprises a developing box and a drum box, the developing box comprises a powder bin, a developing roller, a powder feeding roller and a first driving part, and the first driving part drives the developing roller and the powder feeding roller to rotate; the drum box comprises a waste powder bin, a photosensitive drum and a second driving part, the photosensitive drum is rotatably mounted in the waste powder bin, the second driving part is arranged at the first end of the processing box and drives the photosensitive drum to rotate, and the photosensitive drum, the powder feeding roller and the developing roller are arranged in parallel; the first driving piece comprises a driving force receiving head and a driving gear which are coaxially arranged; a powder feeding gear is arranged at the axial end of the powder feeding roller, a developing gear is arranged at the axial end of the developing roller, the developing gear is meshed with the driving gear, and the powder feeding gear is in driving connection with the driving gear; the rotating speed of the developing gear is different from that of the powder feeding gear. According to the processing box, the rotation stability of the developing roller can be ensured, and meanwhile, the powder feeding roller can stably convey carbon powder to the developing roller.
Owner:PRINT RITE UNICORN IMAGE PROD CO LTD

3D printer tray mounting mechanism

ActiveCN224738850UFlexible adjustment of vertical heightavoid offset
The utility model relates to printer accessory technical field, and disclose a kind of 3D printer material disc mounting mechanism, including printer rack, mounting bracket, lifting mechanism, lifting platform, fixed frame, first adjusting screw rod, displacement screw block, fixed block, connecting rod adjusting assembly, material disc inner side block and material disc limiting block.Using this structure, by setting mounting bracket and lifting mechanism etc. in the side surface of printer rack, the vertical height of material disc can be flexibly adjusted according to different printing requirements;At the same time, the cooperation of first adjusting screw rod and displacement screw block, and setting multiple connecting rod adjusting assemblies between displacement screw block and fixed block, accurate adjustment can be carried out according to the actual aperture requirement of material disc, so as to support material disc of different sizes, prevent material disc from deviating or shaking during use, ensure stable supply of printing consumables, and ensure printing quality.
Owner:CHONGQING JIADONG CULTURE TECHNOLOGY GROUP CO LTD

Machine vision method and system for adaptive ink supply optimization in gravure printing of decorative paper

The invention relates to the field of machine vision, and discloses a machine vision method and system for self-adaptive ink supply optimization in gravure printing of decorative paper. The method first collects an image sequence of the anilox surface morphology of an anilox roller for gravure printing of decorative paper to be optimized, obtains initial three-dimensional point cloud data, and obtains a three-dimensional model of smooth dots; then extracts dot morphological parameters, constructs an ink supply optimization model to predict the initial ink supply; finally, starts gravure printing and collects visual images of the anilox roller surface in real time, calculates the overall ink uniformity and defect rate, and corrects the initial ink supply accordingly; the invention can dynamically adjust the ink supply according to the actual printing state of the dots, thereby effectively improving the printing quality and efficiency of gravure printing of decorative paper.
Owner:HANGZHOU PURENTE DECORATION MATERIALS CO LTD

Food package printing intelligent switching system

The invention discloses an intelligent switching system for food packaging and printing. The intelligent switching system comprises a multi-mode sensing unit, a prediction and control core, a dynamic response type actuator interface, a non-mechanical actuator module and an intelligent cleaning and maintaining module, instantaneous full-automatic switching among different product specifications, colors and processes is realized by regulating and controlling physical and chemical parameters of printing ink, jet printing behaviors and base material states in milliseconds. By the adoption of the scheme, the switching time can be shortened to 200-500 milliseconds from 15-45 minutes, the rejection rate is reduced to 0.1% or below, and the equipment efficiency and compatibility are remarkably improved.
Owner:LAMICAN PACKAGING KUNSHAN CO LTD

Stable ink supply structure of ink-jet printer

The utility model provides a stable ink supply structure of an ink-jet printer, which comprises a main ink inlet pipe, one end of the main ink inlet pipe is provided with two ink outlets, the ink outlets are connected with an auxiliary ink inlet pipe, heating wires are wound outside the main ink inlet pipe and the auxiliary ink inlet pipe, and a temperature probe is arranged in the main ink inlet pipe. According to the utility model, the ink outlet end of the main ink inlet pipe is divided into two to be connected with the auxiliary ink inlet pipe, so that a traditional ink inlet and outlet ink supply mode of the jet printing head is changed into a double-ink inlet mode, and under the conditions of the same pressure and the same pipe diameter of the ink inlet pipes, the ink inlet flow can be doubled, and the continuous sufficient ink supply amount is ensured; meanwhile, heating wires are wound on the outer surfaces of the main ink inlet pipe and the auxiliary ink inlet pipe, the temperature of the heating wires can be accurately controlled through a temperature detection head, the ink activity of the ink supply end of the jet printing head can be effectively enhanced, the ink smoothness is further improved, the high-precision jet printing requirement is met, ink supply can be effectively and stably achieved, and the jet printing quality is guaranteed.
Owner:REVOTECH TECH CO LTD

Multi-material mixing feeder for 3D printing

The utility model discloses a kind of multi-material mixing feeders for 3D printing, it is related to 3D printing technical field;And the utility model includes bunker, the lower surface of bunker is fixedly connected with discharge pipe, the upper surface of bunker is fixedly connected with connecting pipe, feeding pipe is communicated with the outer surface annular array of connecting pipe, the upper surface of connecting pipe movably is equipped with cover, connecting pipe and cover are equipped with connecting assembly between, the inside of bunker and discharge pipe and the upper surface of cover are commonly equipped with clear jamming type stirring mechanism, the even stirring and mixing of material can be realized by the clear jamming type stirring mechanism, in the stirring process, the material at discharge port is scraped and cleaned synchronously by the mechanism, effectively avoid the outlet blockage problem caused by material accumulation, caking, by connecting assembly, stirring structure is designed into split type, and this detachable design greatly simplifies the cleaning maintenance process of mixing feeder.
Owner:JIANGSU WIIBOOX TECHNOLOGY CO LTD

A centralized ink supply for a printing press

The application relates to a printing machine centralized ink supply device and relates to the technical field of printing equipment. The printing machine centralized ink supply device comprises an ink barrel, a driving piece, a conveying piece and a mixing piece. A pushing ring plate is slidably connected in the ink barrel. The pushing ring plate divides the space in the ink barrel into a storage cavity and a mounting cavity arranged in sequence along the vertical direction downwards. The conveying piece comprises an inlet pipe and an outlet pipe. The inlet pipe and the outlet pipe are arranged at the waist of the ink barrel and are communicated with the storage cavity. The mixing piece is arranged in the ink barrel and comprises a filtering ring plate and a liquid return pipe. One end of the filtering ring plate is connected to the bottom wall of the mounting cavity and encloses the bottom wall of the mounting cavity to form a filtering cavity. The other end of the filtering ring plate extends into the storage cavity, and the part extending into the storage cavity is provided with filtering holes. One end of the liquid return pipe is arranged at the top of the ink barrel and is communicated with the storage cavity. The other end of the liquid return pipe is arranged at the bottom of the ink barrel and is communicated with the filtering cavity. The application has the effect of keeping the concentration of the ink uniform.
Owner:北京地大彩印有限公司

A feeding device of a high-speed printing machine

ActiveCN224619221UIncreased conveying tensionGuaranteed printing quality
This utility model relates to the field of printing press technology, and more particularly to a feeding device for a high-speed printing press, comprising an industrial high-speed printing press and a feeding mechanism. The feeding mechanism includes a base and a structural groove. A slider is slidably engaged inside the structural groove. A support is fixedly installed on the upper side of the slider. A first electric push rod is fixedly installed on the support. A pressure sensor is fixedly installed on the output end of the first electric push rod. A hollow column is fixedly installed on the side of the pressure sensor. A rubber abutment ring is fixedly installed at the end of the hollow column. A connecting rod is slidably inserted into the inner side of the hollow column. A spring is fixedly connected between the connecting rod and the inside of the hollow column. This utility model, through its feeding mechanism, increases the conveying tension of the printing roll when the printing roll is relatively loose during feeding. This increases the frictional resistance during unloading, thereby ensuring the printing roll is laid flat and wrinkle-free upon entering the printer, guaranteeing printing quality and enhancing practicality.
Owner:HUBEI JINJIU TECHNOLOGY CO LTD

A method, system and electronic device for controlling curved surface screen printing

This invention provides a method, system, and electronic device for controlling curved surface screen printing. The technical solution is as follows: Based on a pre-obtained correspondence between the curved surface rotation angle and the curved surface radius, a correspondence between the curved surface rotation angle and the curved surface arc length is obtained; based on this correspondence, the maximum height of the curved surface to be printed under different rotation angles is determined; the corresponding curved surface rotation angle is determined by constraining the maximum height, thereby determining the optimal contact angle between the screen and the curved surface to be printed; the horizontal and vertical coordinates of the corresponding optimal contact point are determined based on the optimal contact angle; the four-axis positional relationship is determined based on the horizontal and vertical coordinates and the correspondence between the curved surface rotation angle and the curved surface arc length; based on the four-axis positional relationship, the difference between the horizontal coordinate of the screen and the horizontal coordinate of the optimal contact point is used as a constant control quantity to simulate the four-axis motion to obtain the four-axis motion curve, thereby controlling the four axes of the curved surface screen printing machine to perform corresponding movements. This invention solves the problems of low efficiency and low printing quality in existing curved surface screen printing control methods.
Owner:上海策永自动化科技有限公司

Method for improving impact toughness of electric arc additive manufacturing titanium alloy

The invention provides a method for improving impact toughness of electric arc additive manufacturing titanium alloy, and belongs to the technical field of additive manufacturing. The method comprises the steps that a pretreated forming base material is placed on a cooling device in a gas protection device, when the oxygen content in the gas protection device is smaller than 1000 ppm, the electric arc additive manufacturing process of the titanium alloy is started, meanwhile, the cooling device is started to cool the forming base material, the cooling device is placed in the gas protection device, and the cooling device is started to cool the forming base material. According to the method, the cooling device can cool the environment gas in the gas protection device while cooling the base material, printing can be conducted at a low temperature in the whole additive manufacturing process, and compared with an existing additive printing process in which the environment oxygen content needs to be controlled to be 100 ppm or below, due to the fact that the environment is low in the printing process, the printing efficiency is greatly improved. And the temperature of the formed base material is low all the time, so that the printing quality of the titanium alloy can be guaranteed even if printing is conducted under the high oxygen content, and the titanium alloy is not prone to being oxidized.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

An automatic blanket separating and correcting assembly

ActiveCN224324873URealize automatic correctionachieve separationWebs handlingTextile printerGear wheel
The utility model provides a kind of blanket automatic separation and deviation correction's subassembly, install in printing machine, it is related to printing equipment technical field, including the separation mechanism and deviation correction mechanism between the left end plate and right end plate of printing machine, separation mechanism is located above deviation correction mechanism, main motor is installed by fixed frame outside left end plate, the rotating shaft sleeve of main motor is equipped with main gear, main gear is connected with main transmission gear by main chain transmission, main transmission gear inner wall transmission connection has main shaft, main shaft rotatably be arranged between left end plate and right end plate;Main gear, main chain, main transmission gear and main shaft are rotated by main motor drive, main shaft, deviation correction mechanism and separation mechanism are all connected with blanket rolling, realize the rolling conveying of blanket, automatic deviation correction and automatic separation from main shaft, to improve the efficiency and precision of blanket processing, ensure printing quality, reduce manual operation intensity.
Owner:DONGGUAN SUPREME TECH CO LTD

Coating roller and coating equipment

The utility model provides a coating roller and coating equipment, and belongs to the technical field of coating, the whole body sleeving connection of an inner roller body of the coating roller is changed into the mode that the inner roller body is only sleeved in the middle section, and two sections are suspended, so that the two ends of the length of an improved outer roller body cannot be influenced by the deformation of the two ends of the length of the inner roller body, and the coating quality is improved. Therefore, the printing quality of the coating roller in high-precision printing is ensured.
Owner:CYG NEW ENERGY MATERIAL RESEARCH INSTITUTE (GUANGDONG) CO LTD