30 results about "Overprinting" patented technology

The application provides a kind of carbon fiber mandrel main leaded soft plate overprint process, belong to soft plate printing technical field. Symmetrical, even arrangement each mandrel around center impression cylinder, start the air supply and exhaust unit of mandrel, anilox roll is sleeved on mandrel, close air supply and exhaust unit, anilox roll contracts and tightly and in mandrel. Wrap the printing material on the center impression cylinder, start the closed double doctor inking system for anilox roll quantitative ink supply, and by servo motor control mandrel and anilox roll relative center impression cylinder front and back displacement. Start the drive unit of printing material, while the printing material rotates around the center impression cylinder, each mandrel drives corresponding anilox roll to approach the center impression cylinder, and complete impression and overprint under the preset printing pressure. After completing overprint, start the air supply and exhaust unit again to replace each anilox roll, enter the next cycle of soft plate overprint. The application can realize the accurate overprint of soft printing material.

This invention provides a method, apparatus, and coating machine for adaptive intercoating in secondary overprinting, relating to the field of lithium battery processing. The method includes: detecting the printing position during the secondary overprinting process using a color mark group; calculating the position deviation between the printing position and the target position; adjusting the phase of the gravure roller based on the position deviation; detecting the new printing position based on the phase-adjusted gravure roller; measuring the actual intercoating value based on the new printing position; comparing the actual intercoating value with the process setting value to obtain the secondary overprinting result; the secondary overprinting result is used to indicate whether the printing position is ahead or behind; and adjusting the speed of the gravure roller based on the secondary overprinting result to complete the secondary overprinting. This application improves the accuracy of intercoating in secondary overprinting by real-time correction of the gravure roller speed to match the material feed speed, forming a closed-loop adjustment.

The present invention provides a transfer film for holographic graphic printing, which has a layered structure consisting of a plastic base film layer [1], a release layer [2], and a transfer layer. The transfer layer is composed of transfer units arranged in a longitudinal and transverse manner. Each transfer unit contains a pattern used on a piece of board material for a package. The transfer layer has a holographic laser layer [4] and an aluminum plating layer [5]. The holographic laser layer has a laser effect pattern. The transfer layer also has a printed graphic layer [3]. The printed graphic layer has a blank space that is in a registration relationship with the laser effect pattern, and the registration deviation between the blank space and the laser effect pattern is ≤±10um. Since the release layer, printed graphic layer and holographic laser layer in the above-mentioned transfer layer are completed online in one go on the printing press, its high precision, integrated features and novelty, creativity and practicality have changed the defects of the existing iron printing process, such as multiple processes, difficulty in controlling the registration accuracy and high loss.

This invention discloses a fully automated screen printing method for labels based on CCD visual alignment, specifically including the following steps: material feeding control, substrate pretreatment, CCD visual alignment, dual CCD compensation printing, continuous alignment and overprinting, low-temperature curing, cooling, shaping and leveling, CCD visual final inspection, slitting and rewinding, and packaging output. This fully automated screen printing method for labels based on CCD visual alignment achieves precise alignment and real-time offset compensation between the screen and the substrate through dual CCD visual monitoring, improving overprinting accuracy. It employs ambient pressure low-temperature plasma pretreatment to enhance substrate adhesion, and three-stage low-temperature curing to prevent PET substrate deformation. Combined with full-width CCD final inspection to automatically remove defective products, this method achieves fully automated, high-precision, and high-stability label printing production, offering advantages such as precise alignment, uniform curing, strict quality control, and high production efficiency.

This invention discloses a high-elasticity three-dimensional adhesive composition for multiple overprinting and its preparation method, belonging to the field of three-dimensional coating materials technology. The composition comprises a polyurethane-polyurea interpenetrating network polymer emulsion, an organosilicon-modified waterborne polyurethane-acrylate hybrid emulsion, a crosslinking agent, functional composite fillers, a thickener, a dispersant, an antifoaming agent, additives, a pH adjuster, and deionized water. This invention constructs a dual crosslinking system of polyurethane-polyurea interpenetrating network and organosilicon hybrid emulsion, and combines it with rutile titanium dioxide, surface-modified nano-calcium carbonate, and nano-silica functional fillers. Combined with a nonionic polyurethane associative thickener to regulate rheological properties, the adhesive possesses high elastic recovery, anti-blocking properties, and strong thixotropic properties. During multiple overprinting, the adhesive can quickly set, without flowing or collapsing, with strong interlayer bonding, clear three-dimensional edges, and a smooth coating surface with excellent water and solvent resistance.

This invention relates to the field of label printing technology, and more particularly to a high-speed label printing and die-cutting correction device. The device includes a base, with support plates symmetrically fixedly connected to the top of the base. A fixing frame is fixedly connected between the tops of the support plates. A recycling roller is rotatably mounted at one end of the fixing frame. Inside the printing box, a drive motor drives a driving gear and a driven gear to mesh, driving the printing extrusion roller to rotate symmetrically and extrude ink, completing the clamping, feeding, and printing operations. Automatic cleaning of the roller surface is achieved in conjunction with a doctor blade, a suction fan, and a dust collection box. Simultaneously, a belt pulley drives a stirring rod inside the storage box to rotate, preventing ink sedimentation. This invention features a compact structure and stable mechanical transmission, enabling real-time correction during high-speed operation. It effectively solves problems such as roll material misalignment, edge curling, misregistration, and die-cutting misalignment, improving label production accuracy and efficiency.

This utility model discloses a cigarette overprinting deviation detection device and a cigarette overprinting machine. The cigarette overprinting deviation detection device includes an overprinting disk arranged on one side of the overprinting roller and a barcode scanning component disposed around the overprinting disk. The overprinting disk is coaxial with the overprinting roller and has a marking area arranged along the rotation direction of the overprinting disk. Multiple markings are arranged in the marking area. The barcode scanning component photographs the markings in the marking area when the overprinting roller drives the overprinting disk to rotate, in order to determine the lateral deviation value during the overprinting process. This utility model detects the markings on the overprinting disk by setting up an overprinting disk and a barcode scanning component to determine the lateral deviation value during the overprinting process. Then, when a lateral deviation value occurs, the machine is stopped for maintenance and adjustment. This allows for timely detection of the lateral deviation value during the cigarette overprinting process, thereby avoiding abnormal product loss and reducing production costs.

This utility model discloses a printer humidification device comprising: a printer body and a door, the door being rotatably connected to the printer body; a printing space being provided within the printer body; a printing platform and a printing carriage being provided within the printing space; a print head being provided on the printing carriage; a humidifying water tank being provided at one end of the printing platform; and an atomizing module being provided on the humidifying water tank. The atomizing module is capable of humidifying the entire printing space; a humidity detector is provided on the other side of the printing platform. Through the atomizing module, the printing space can be humidified, maintaining it in a constant humidity state. In a constant humidity state, the humidity remains essentially unchanged, preventing the printing media from absorbing moisture and expanding or contracting due to humidity variations, thus maintaining the dimensional stability of the printing media and ensuring the accuracy of multi-color overprinting. Simultaneously, in a constant humidity environment, it can solve the ink splattering or splashing phenomenon caused by static electricity accumulation in low humidity environments.

This utility model provides a multi-color overprinting precision positioning roller printing machine, belonging to the field of printing technology. It includes a printing machine body, an operating platform, and support legs fixedly installed at the bottom of the operating platform. The positioning mechanism includes an arc-shaped fixing block fixedly installed on the outer surface of the support legs, a sleeve movably connected to the inner surface of the arc-shaped fixing block, a roller sleeved on the outer surface of the sleeve, an inner support assembly disposed on the outer surface of the support legs for fixing the roller, and a drive assembly disposed on one side of the inner support assembly for rotating and retracting the printed paper sheet. This utility model, through the mutual cooperation of the various components of the positioning mechanism, ensures accurate positioning each time material is loaded. Furthermore, the cylinder drive achieves a uniform and stable clamping force distribution, avoiding roller displacement or tilting caused by inaccurate manual adjustment. It also ensures consistent tension and stable rotation speed of the material during winding, improving printing accuracy and winding quality.

This invention discloses a sintered NdFeB magnet and its bluing process, relating to the field of magnet corrosion protection technology. The bluing process includes the following steps: dry polishing of the NdFeB black sheet using a composite polishing medium to remove surface oil, dust, and a dense oxide layer, exposing a fresh active substrate and forming a rough interface; the composite polishing medium consists of stone particles, shell particles, and sawdust; and bluing the polished NdFeB black sheet to induce an oxidation reaction on the substrate surface, generating a blue Fe3O4 protective film. This bluing process achieves a magnetic loss repair rate of up to 1.19%, while simultaneously achieving zero chemical emissions, zero wastewater generation, and replacing expensive controlled atmospheres with zero-cost air. It also fundamentally solves the rigid constraints of process connections caused by wet material overprinting, providing a surface protection solution for NdFeB magnets that combines environmental friendliness, high corrosion resistance, magnetic property repair capabilities, and low cost.

The application discloses a kind of whole volume flexographic printing machine's roll tension self-adaptive control method, it is related to roll printing control technical field, this method includes: whole volume flexographic printing machine operating data is divided into tension function area;Tension state analysis is carried out based on tension partition result, obtain tension state feature set, and disturbance identification is carried out, obtain tension disturbance source result;Processing is carried out in combination with overprint state and roll elongation state, obtain overprint associated tension correction result;Tension disturbance source result and overprint associated tension correction result are implemented control amount distribution, obtain execution end control result, and execute check, form roll tension self-adaptive control result.The application realizes the identification and collaborative control of tension disturbance source in different functional areas, improves the stability of roll tension, overprint precision and winding roll shape quality, reduces the risk of local compensation mutual interference, improves the running stability and self-adaptive control ability of whole volume flexographic printing machine under complex working conditions.

The application relates to a method for detecting overprint error of a digital inkjet printer and a related device, the method comprising controlling a nozzle system of the digital inkjet printer to print a preset test pattern on a substrate driven by a spindle; during the printing of the test pattern, a position encoding signal of the spindle rotation is acquired through an encoder linked with the spindle, wherein the position encoding signal comprises a pulse signal count value and a period count value; an actual printed image of the test pattern printed on the substrate is acquired through an image acquisition device; the position encoding signal and the actual printed image are analyzed to obtain error characteristics, and the error is classified into one of a plurality of preset error types based on the error characteristics. The application has the advantages of accurately finding out printing errors caused by different sources, facilitating later maintenance or compensation, and reducing error checking difficulty and checking time.

This invention discloses a printing device for visual inspection of defects in printed materials, belonging to the field of printing technology. The invention includes: a base plate and a first support column fixedly connected to the upper side of the base plate; a first support frame fixedly connected to the side wall of the first support column; a printing assembly mounted on the first support frame for printing on the product to be printed; and a visual inspection assembly mounted on one side of the printing assembly for detecting surface defects in the printed material after printing. After clamping, the printing assembly slides upwards on the first support frame to a preset position, whereby it performs the printing operation. After printing, the printing assembly lowers the printed material, and then the visual inspection assembly performs visual inspection on the printed material, detecting defects such as dirt spots, missing prints, scratches, misregistration, and color differences.

The utility model relates to paper printing processing technical field discloses a paper printing processing paper turnover mechanism, include: as the bottom plate of support main part, the bottom plate is connected with the fixed frame through rotating component, the inner wall of fixed frame all is fixedly connected with the connecting box, the inner wall both sides of connecting box all are fixedly connected with the connecting block, the right end of connecting block all are fixedly connected with first motor, first motor is connected with the turntable through transmission component, the bottom all of turntable swing joint has the pull plate, the inner wall of connecting box all are connected with the slide platform of sliding, in the utility model, through first motor drive worm, worm drive worm wheel, worm wheel drive turntable, turntable pull pull plate, pull plate drive slide platform, slide platform drive locating plate position paper, thereby make printing pattern and text accurate alignment, effectively avoid overprint inaccurate, fuzzy, misplacement and ghosting etc.

This invention discloses a colorful anti-counterfeiting QR code manufacturing process and secure identification algorithm, relating to the fields of anti-counterfeiting printing and QR code recognition technology. The process primarily involves sequentially printing three types of metameristic inks onto a substrate to form a dataset identification code, a data verification code, and a time-series verification code. The three inks exhibit minimal color difference (ΔE < 1.0) under natural light to conceal the pattern, while displaying a 4-5 times brightness contrast under red, green, and blue monochromatic light, respectively, enabling multimodal information storage. During identification, a mobile application controls the screen to sequentially emit multiple monochromatic lights to illuminate the QR code, and a camera captures reflected images under different light conditions. By comparing the reflection characteristic model and time sequence consistency, the authenticity of the physical entity is determined, and decoding is performed. This technical solution combines the principles of static QR codes, offering a cost advantage while providing both concealed anti-counterfeiting and dynamic verification capabilities, making it suitable for high-end anti-counterfeiting labels.

The present application relates to the technical field of soft package printing, and provides a soft package digital inkjet high-speed equipment, which comprises a processing table and a printing mechanism; a plurality of film conveying plates for supporting the film are sequentially and slidably arranged on the processing table along the conveying direction of the film; a unwinding device and a winding device are respectively connected and installed on the two ends of the processing table; the printing mechanism comprises an inkjet device and a curing device; the inkjet device comprises an inkjet assembly and a positioning frame which can be lifted relative to the processing table; a plurality of inkjet heads are inserted in the inkjet assembly; a heat dissipation structure is sleeved on the surface of the inkjet head; limiting clamps for abutting against the upper surface of the film are fixed on the two sides of the positioning frame; and a curing lamp and a cooling fan are installed on the curing device. The present application realizes the smooth running and accurate temperature control of the film during high-speed inkjet, significantly improves the production efficiency, overprint accuracy and winding neatness of the soft package digital printing, and enhances the adaptability and operation reliability of the equipment to different specifications of materials.

This invention discloses a double-sided precision-printed anti-counterfeiting cigarette inner liner paper and its preparation method. The inner liner paper comprises a directional light-transmitting fiber network structure paper base, a front negative printing layer, a back positive printing layer, and a composite layer. The paper base is manufactured using a three-layer papermaking process. The middle layer undergoes pore-forming treatment to form directional microporous channels with a pore size of 5-15 μm, achieving a light transmittance of 88-92%. The front negative image is printed with high-penetration ink, with a penetration depth of 25-35 μm; the back positive image is printed with controlled-penetration ink containing microcrystalline wax and hydrophobic nano-silica, with a penetration depth of 8-15 μm. Dynamic registration control is achieved using a dual-sided CCD vision system and a servo correction device, achieving a registration accuracy of ≤0.12 mm laterally and ≤0.15 mm longitudinally. The composite layer uses a fluorinated acrylate system with a refractive index of 1.44-1.46, matching the paper base. When observed under light, the positive and negative patterns are precisely aligned, with clear layers, high anti-counterfeiting recognition, and a production qualification rate of 98%, making it suitable for high-end tobacco packaging.

This invention relates to the field of laser holographic image manufacturing technology, and particularly to a process and method for preparing 3D nano-image laser holographic images using cross-linked films, comprising the following steps: unwinding; printing alignment marks; printing binder and overprinting alignment; printing a UV imaging layer and curing; and rewinding. This application achieves high-precision overprinting alignment on transparent films. By pre-printing colored alignment marks on the surface of the cross-linked film, the difficult-to-identify transparent film is transformed into an identifiable material with a clear visual reference. A method of real-time comparison between the mark signal and the printing plate phase signal is used to perform dynamic overprinting alignment while printing the binder. The printing plate speed is adjusted in real time according to the deviation, achieving parallel and coordinated control of binder printing and overprinting alignment. This ensures that the printing position of the binder layer always dynamically coincides with the mark reference, solving the problem of difficult signal acquisition on transparent films and improving overprinting accuracy.

This invention belongs to the field of vehicle work order image processing technology. It provides a method for super-resolution reconstruction and key information enhancement of vehicle work order images, comprising: acquiring a low-resolution image of the work order to be processed through image acquisition and preprocessing; decoupling the extraction of pre-printed frame features and handwritten content features based on an improved lightweight feature encoding network; matching the pre-printed frame features with a standard template feature map; calculating a local spatial displacement deviation field; performing inverse correction on the handwritten content features based on the deviation field to eliminate overprinting offset; inputting the corrected features into a dual-branch super-resolution network for scale upscaling; dynamically and adaptively adjusting the handwritten content enhancement weights according to the offset intensity; and finally generating a high-resolution work order image. This invention effectively corrects printing deviations and paper deformation, improves the resolution of the work order image and the clarity of the handwritten content, and is suitable for paper work order self-recognition and digitization processing scenarios.

The application discloses a kind of cut seam printing process beat coordination adaptive control methods, specifically related to cut seam printing online beat coordination control technical field, for solving the problem that existing cut seam printing online production line is not synchronized in single change and acceleration and deceleration condition Multi-axis beat, phase mismatch and tension fluctuation lead to overprint instability.By establishing the beat coordination session with session identification and cycle serial number as primary key, and aligning and packaging key quantities such as cut seam shaft, printing cylinder, conveying speed and tension under unified time base, cooperating with alignment window, filling and leaving marks, checking and idempotent coverage writing form traceable data consistency mechanism, so as to achieve the same caliber, reproducible coordination data basis under the disturbance conditions such as single change, acceleration and deceleration and communication jitter, solve the problem of beat determination distortion and control decision instability caused by multi-axis multi-source data asynchronization.

The invention provides a carton printing defect visual identification device, which relates to the technical field of image data processing, and comprises an outer box body, a conveying component and a visual detection component, an image acquisition module is arranged in the visual detection component, an encoder is arranged in the conveying positioning unit, and the encoder is linked with a driving mechanism of the conveying component and a trigger signal of the industrial linear array camera, so that the conveying speed of the conveying component, the conveying position of the carton and image acquisition are synchronized; a three-level image processing flow is executed through the algorithm processing module, interference such as corrugated paper textures is eliminated through self-adaptive median filtering, multiple defects such as overprinting deviation and through printing can be accurately recognized and graded in combination with multi-dimensional feature extraction and a support vector machine classification model, and the accuracy and the accuracy of detection are improved. The industrial pain points that in the prior art, the image processing flow is simple, the targeted interference filtering capacity is lacked, various defect types and grades cannot be accurately distinguished, and the overall intelligent level and collaboration are insufficient are solved.

The application belongs to the technical field of machine vision, and discloses a machine vision deviation detection and deviation correction control method and system for intelligent overprinting positioning of a textile packaging bag. Through the design of a double-layer adaptive filtering and edge enhancement algorithm, the frequency domain Fourier transform is combined with adaptive notch filtering to suppress the base texture frequency domain component, and then Gaussian difference filtering is used to remove the hairiness high-frequency noise. The adaptive threshold Canny operator is optimized to realize edge locking of the overprinting feature, and the image segmentation technology is combined to isolate the substrate and overprinting area interference. Meanwhile, a three-dimensional digital standard template is constructed by fusing the overprinting feature, texture feature and position parameter, so that the base texture is prevented from submerging the overprinting feature or being misjudged as noise. Through the construction of a triple constraint judgment mechanism of texture recognition, mode judgment and color feature analysis, the pseudo-deviation caused by substrate stretching, wrinkles, uneven warp and weft density and color cast can be accurately identified and removed, and the misjudgment of the deviation correction mechanism is avoided.

This invention relates to the field of automatic control technology and discloses an online correction method for double-sided printing deviation of woven bags. This method addresses the problem in traditional methods where the conveying distance and control delay between the detection point and the correction point, combined with bag speed fluctuations, slippage, and micro-pauses, lead to mismatches between the deviation measurement results and the bag to be corrected. The method first addresses the mismatch caused by the distance and time delay between the high-speed discrete conveying detection point and the correction point, as well as bag slippage and micro-pauses. It edits the batch parameter version and cycle count caliber, assigns a unique number to the bag, and links the double-sided printing deviation to the counting timestamp. Before correction, it verifies the sequence, counting difference, stability, and validity period. After correction, it generates a correction command with an effective time window, issues it within the designated interval, and writes back the receipt to form a closed-loop record. In case of an anomaly, it pauses alignment and gradually resumes, improving the accuracy and yield consistency of non-stop correction.

This application relates to the field of automated control technology for printing machinery, and particularly to an automatic registration compensation method, system, and device for a flexographic printing press. The method includes: a deviation acquisition step: during the printing process, the real-time positional deviation value of the color mark printed by the subsequent printing unit relative to a reference mark is acquired in real time through the vision detection system, the reference mark being the mark printed on the substrate by the first printing unit; an adjustment step: the real-time positional deviation value is processed by the motion controller, including validity verification, filtering, and nonlinear gain adjustment, to generate a corresponding plate roller phase adjustment command; and a correction step: the plate roller phase adjustment command is applied to the plate roller of the corresponding printing unit through a superimposed positioning method to correct the phase of the plate roller relative to the spindle, thereby achieving registration correction. This application can effectively correct the phase of the plate roller relative to the spindle, achieving registration correction and improving printing quality.

This invention discloses a water-based coating composition and its transfer process for improving the transfer rate of electroplated aluminum. The composition comprises a water-based film-forming resin and a latent thermosetting system. The latent thermosetting system consists of a blocked polyisocyanate with a desealing temperature of 110–150°C and a resin containing active hydrogen, which deseales and undergoes irreversible cross-linking under hot stamping heating and pressure conditions. This composition allows the release layer to be permanently cured after the first hot stamping transfer, thus mechanistically avoiding coating softening and misregistration caused by reheating in multi-color hot stamping. The water-based film-forming resin is preferably a blend of low-Tg polyurethane and high-Tg acrylic emulsion, and nano-wax dispersions, surface control agents, thermogenic acid generators, and near-infrared absorbing materials can be added. The transfer process completes drying below the desealing temperature, and curing is triggered during hot stamping. This invention significantly improves the dimensional stability of multi-color printing while ensuring a high transfer rate, and is suitable for multiple hot stamping scenarios such as cigarette packs and wine labels.