324 results about "Screen printing" patented technology

The application discloses a chip capacitor silk screen defect detection method, device, equipment and storage medium, the method comprises the following steps: acquiring a sample image set for model training, the sample image set comprises a plurality of sample images, the sample image records a plurality of capacitor pole pieces formed on the medium layer by silk screen printing, a YOLO V5 model for detecting the defects of the capacitor pole pieces is trained by using the sample image set, a weight file is obtained, the model weight file is format converted, and a target model supported by a Tensor RT engine is obtained; in the production process, the target model is used for defect detection on the collected image to be detected to obtain a detection result; when the detection result has defects, the chip capacitor silk screen printing equipment is stopped to facilitate fault troubleshooting, the quality control in the chip capacitor production process is effectively carried out, the production of defective products is timely suppressed, the yield of products is improved, the production efficiency is improved, the workload of the on-site staff for sampling inspection is reduced, and the production cost is reduced.

The present application relates to the technical field of process optimization, and particularly relates to a printing process method for preventing oil leakage of a silk screen printing plate. The method comprises the following steps: dust removal and degreasing cleaning of the silk screen printing plate to obtain a clean and dry to-be-made screen plate; then, the front and back surfaces of the screen plate are synchronously coated with photosensitive paste, and repeated scraping is performed in the same direction, so that the photosensitive paste is uniformly filled in the screen holes and a continuous photosensitive layer is formed, and then drying is performed; a text pattern film is combined with the screen plate for exposure, and the text through hole is exposed through washing, and secondary drying is performed to stabilize the through hole structure; finally, the through state and edge shape of the text through hole are detected, and the qualified screen plate is screened for text silk printing, so that stable printing effect of preventing oil leakage is realized. Through fine control of the whole process of scraping, exposure and washing, and row-by-row detection of the text through hole, the present application can make the screen hole filling dense and the through hole edge complete, so that ink leakage in the text silk printing process is effectively prevented, and the printing consistency and stability are improved.

This application discloses an integrated production line for screen printing and laser engraving on touch-sensitive glass, comprising: a first screen printing line for transporting a glass cover plate; a first screen printing unit disposed on the screen printing line for printing a first ink layer on the glass cover plate; a laser engraving unit disposed on the screen printing line and downstream of the first screen printing unit for laser engraving the printed first ink layer; a cleaning unit disposed on the screen printing line and downstream of the laser engraving unit for removing laser engraving debris; and a second screen printing unit disposed on the screen printing line and downstream of the cleaning unit for covering the laser-engraved ink layer with a second ink layer. By integrating equipment and reorganizing processes according to the sequence of first screen printing, laser engraving, cleaning, and second screen printing, the originally separate processes are transformed into continuous automated production.

This invention relates to the field of mobile phone manufacturing, specifically disclosing a mobile phone screen cover with a high-precision IR ink area and its processing method. The invention involves screen printing the pre-treated cover, appropriately expanding the ink during screen printing, and then removing excess ink using laser engraving to obtain a high-precision IR ink area. This method, through screen printing followed by laser engraving, effectively improves the yield and infrared light transmission stability of the final product, thus meeting the requirements of high-end mobile phone screen covers.

The utility model relates to a silk screen printing device for automobile wheel hub accessory production belongs to automobile wheel hub accessory production technical field, including bottom plate, install the fixed frame of bottom plate top, the silk screen of fixedly established in fixed frame, install in the telescopic mechanism of bottom plate top and be used for driving fixed frame to lift, and install the ink brush mechanism of fixed frame top, the utility model through the ink chamber gap formed between scraper, sealing plate and movable seat can accommodate ink, drive mechanism drives movable seat to move, can utilize scraper to carry out horizontal pushing to ink group in ink chamber, thereby through silk screen will be coated with ink on automobile wheel hub accessory etc. injection molding part, and movable seat reverse movement can push back ink group in ink chamber to original position, make in silk screen printing process not need to go back and forth to lift to scraper etc. component on silk screen, thereby shorten silk screen printing time, improve the efficiency of silk screen printing.

The application discloses an environmentally-friendly soft type yoga mat special silk-screen printing ink and a preparation method thereof, and belongs to the technical field of silk-screen printing inks. The ink comprises the following components in parts by weight: 30-50 parts of main body resin, 5-15 parts of environmentally-friendly pigment, 25-45 parts of environmentally-friendly composite solvent, 1-5 parts of adhesion promoter, 0.5-2 parts of rheological additive, 0.5-2 parts of scratch-resistant additive, and 2-8 parts of environmentally-friendly non-ortho phenyl plasticizer. The ink is extremely environmentally-friendly, meets international export standards, and is free of phthalate plasticizers, benzophenone solvents and heavy metal pigments in the whole process. Instead, the ink uses citric acid ester non-ortho phenyl plasticizers, benzene-free and ketone-free composite solvents and heavy metal-free organic pigments. The VOC content is far lower than the national limit value, the irritating odor is eliminated, and phthalate controlled substances are not detected. The ink meets the EU REACH regulation appendix XVII 51 / 52 and the EN71-3 toy safety standard, and completely solves the problem of limited export of traditional inks.

The utility model discloses an economic type dragon-shaped swing arm silk screen printing machine, including the frame, be provided with the reception body subassembly on the frame, the reception body subassembly includes the wing plate spare, the wing plate spare lower part rotation is provided with the steering adjustment spare of fixed setting on the frame, the utility model low -cost dragon -shaped swing arm silk screen printing machine has realized the good versatility of large and small area printing, and the flexible extension of multiple specifications and models is convenient, and can realize the extension of multiple specifications and models under the prerequisite of not changing the main body structure with low cost, its feeding and discharging efficiency is higher, can satisfy the demand of larger printing area simultaneously, and effectively reduces the equipment manufacturing cost and has promoted the safety performance, simultaneously, the design has created the safe foundation and simple condition for application, makes the machine operation simple and convenient, is helpful to the enterprise to solve the silk screen printing operator workstation labor difficult and the recruitment difficult problem, improves the practicability and economy of equipment as a whole, effectively solved the problem of poor versatility of existing swing arm type silk screen printing machine.

The utility model discloses a vertical rotation's spraying jig, including rotating base, jig station and plug cover, the middle part of rotating base is integrally formed with the equipment connecting column, the outside of rotating base is surrounded and is provided with fixed connecting ring, is provided with a plurality of jig station on fixed connecting ring, the upper surface of jig station is provided with the positioning slot corresponding with product, the front end of jig station and the rear end of jig station all are provided with the clamping hole, the middle part of jig station is integrally formed with the convex interface platform corresponding with product inner chamber, plug cover is inserted in the circular cavity of product, and the upper surface of plug cover is fixed with the connecting guide column. This vertical rotation's spraying jig does not need to disassemble the jig, directly installs on the spraying equipment and sprays, after disassembly, can directly install on the silk screen printing equipment with the product and carry out silk screen printing, saves the step and the process, realizes the spraying and silk screen printing of disposable multi -piece product, promotes the production capacity, reduces the cost, satisfies the demand of customer, reduces the defective rate.

The present application relates to a kind of glass wine bottle spray printing process, including polishing and cleaning to glass wine bottle surface spraying site, the temperature of glass wine bottle surface is increased to 60 ℃;Spraying material is PVC fiber, and the thickness of primer layer is 0.1 millimeter, then the surface temperature is increased to 100 ℃, keep 30 seconds, take out quickly to carry out second spraying, after spraying, it is naturally cooled to 55 ℃;To the spraying site is silk-screen printing, carries out third spraying, and uses flash powder to seal layer printing site.The present application increases roughness by pretreatment to the body of glass wine bottle, and the PVC fiber that can be melted at high temperature is sprayed after, and primer layer is made, so that primer layer can be completely bonded with bottle body, and stability is improved.Second primer can enhance the adhesion with bottle body, and also can make surface further rough, to facilitate the fixation of printing paint, finally, through flash powder sealing layer, the unique visual effect is formed on the outer surface of wine bottle, and it is beneficial to the market promotion of commodity.

A top frame machine for balancing screen printing stencils is disclosed, relating to the technical field of screen printing equipment. A push plate is positioned on the upper side of a base plate and connected to the base plate via a push mechanism. A limiting plate is connected to a side plate via a drive mechanism. Several connecting springs are fixed to the lower surface of an abutment plate, embedded and fixed within cylindrical grooves on the push plate. Pressure sensors are fixed at the four corners of the upper surface of the abutment plate, and abutment rods are fixed at each of the four corners of the lower surface of the abutment plate. Abutment discs abut against the lower ends of the abutment rods, inserted into the four corners of the push plate, with the upper sides of the abutment discs inclined. The output shaft of an adjusting motor is fixedly connected to the center of the lower surface of the abutment discs, and the adjusting motor is connected to the pressure sensors via a controller. Through the linkage of the pressure sensors and the adjusting motor, the pressure at the four corners of the stencil is automatically balanced, ensuring uniform stencil tension, improving printing accuracy and stencil life, while reducing manual adjustments and making operation simple and efficient.

The application discloses a flexible electrode based on liquid metal screen printing and magnetron sputtering and a preparation method, wherein Ga-In alloy is prepared into nanoparticle ink to realize room-temperature screen printing of high-resolution patterns; TPU hot-press packaging and mechanical stretching activation are utilized to construct a stretchable conductive path; and a Ni / Au layer is magnetron-sputtered on a conductive window to improve the conductivity and stability of the electrode. The electrode process is simple, low in cost and compatible with the existing screen printing production line, and is suitable for wearable electronics, biological electrical monitoring and other fields, and solves the defects of easy brittle fracture of the existing metal electrode and poor conductivity of the conductive polymer electrode.

This invention presents a novel and sustainable approach for engineering highperformance electronic substrates derived from goat-based textiles, traditionally referred to as Brana. By using a carefully organized sequence of eco-friendly chemical, mechanical, and nanotechnological processes, the textile becomes 8 biodegradable, flexible, and electronically functional platform. This method incorporates active nanoink materials like graphene oxide, carbon nanotubes, and conductive and coordination polymers through scalable deposition techniques such as chemical vapor deposition, electrochemical coating, and screen printing. Consequently, the resulting substrate demonstrates outstanding electrical conductivity, mechanical strength, and thermal stability, making it perfect for next-generation flexible electronics applications. These include wearable biosensors, environmental monitoring devices, flexible printed circuit boards (PCBs), and energy storage components like supercapacitors and battery electrodes. Designed with both ecological impact and industrial scalability [ባ mind, this invention bridges indigenous natural materials with state-of-the-art nanomaterials and fabrication strategies, thereby setting a new benchmark [በ the development of sustainable, multifunctional electronic platforms

This invention discloses a control method for a vertical screen printing exposure device, comprising: a co-position motor driving a first lens module and a second lens module to simultaneously occupy the initial scanning position; during exposure, a linkage motor driving the first lens module to move downward from the highest exposure point, while simultaneously driving the second lens module to move upward from the lowest exposure point; during the movement of the first and second lens modules, the first lens module exposes the screen at the first exposure station according to the exposure pattern of the first exposure station, and the second lens module exposes the screen at the second exposure station according to the exposure pattern of the second exposure station. By driving the first and second lens modules to move synchronously and in opposite directions using a linkage motor, the requirement for synchronous processing at two stations is met, and the self-weight of the downward-moving first lens module can be used to effectively reduce the load on the linkage motor during operation, thereby increasing the scanning speed and plate-making efficiency of the first and second lens modules.

A mesh fabric, characterized by being composed of liquid crystal polyester fibers with a mesh count of 350 fibers / inch or more and a yarn thickness of 25 μm or less, provides a mesh fabric that, while preventing fibrillation and abrasion reduction during the weaving process of liquid crystal polyester fibers, exhibits high strength with low plastic deformation and excellent chemical resistance. This mesh fabric, composed of liquid crystal polyester fibers with a large mesh count and low yarn thickness, results in a small volume of paste transmission when used to create a screen printing plate, making it suitable for film printing.

The application discloses a kind of gradient color cover plate glass silk screen printing systems, belong to glass production technical field.Its technical scheme is: including glass conveying unit one, silk screen printing machine, glass conveying unit two, gradient heating unit, glass conveying unit three, cleaning machine and coating machine arranged in sequence.The application gradually changes by controlling the gradient input amount of oxygen along the color gradient direction, and further precisely controls the temperature of each region, finally prepares the gradient color cover plate glass, and the color CMYK value can be changed between 0,0,0,0 and 71,63,60,12;After placing in the environment of temperature 85 DEG C, humidity 85%RH for 48h, the glass color is stable and does not change.

This invention belongs to the field of card production technology, and particularly relates to a precision screen-printed card and its manufacturing process. A precision screen-printed card includes: a card substrate, the surface of which is provided with a precision screen-printed graphic layer. The precision screen-printed graphic layer is formed by screen printing with high-viscosity raised-letter ink through a high-mesh precision screen. The line width of the precision screen-printed graphic layer is 0.05mm-0.08mm, and the precision screen-printed graphic layer has a perceptible three-dimensional raised structure. This achieves stable reproduction of fine lines, is suitable for various card substrates and other processes, making the cards more exquisite and reducing production costs.

The application provides a semiconductor gas sensor based on ceramic via vertical interconnection and a preparation method thereof, which comprises the following steps: preparing a via on a ceramic substrate, grooving the ceramic substrate according to the size of a gas sensitive element; preparing a conductive metal column in the via by adopting a screen printing technology, the conductive metal column penetrating through a first surface and a second surface of the ceramic substrate; respectively preparing a sensing electrode, a heating electrode and an insulating layer on the first surface of the ceramic substrate; respectively preparing a sensing electrode pad and a heating electrode pad on the second surface of the ceramic substrate opposite to the first surface; preparing a gas sensitive layer on the sensing electrode; splitting the ceramic substrate with the prepared gas sensitive layer into single gas sensitive elements along the groove by using a splitter; and fixing the sensing electrode pad and the heating electrode pad on the gas sensitive element to a base pad by using organic gold paste or thick film silver paste and sintering and bonding, so as to reduce the volume of the sensor.

This utility model relates to the field of plastic bag processing and discloses a printing device for plastic bag processing. It includes a frame, a conveying assembly mounted on the frame for horizontally conveying plastic bags, a vertical frame fixed to the back of the frame, a screen printing assembly slidably mounted on the vertical frame, and a cylinder driving the screen printing assembly to move up and down. A pair of connecting frames are symmetrically mounted on the frame, each connecting frame having a rotating shaft rotatably connected to it. A gear located behind the connecting frame and a pressure plate located inside the connecting frame are fixed on the rotating shaft. This utility model has the following advantages and effects: The plastic bags to be printed are placed on the conveying assembly, which then starts to deliver the plastic bags one by one to the bottom of the screen printing assembly. When the cylinder drives the screen printing assembly to move down, the rack and pinion plate meshes with the gear, causing it to rotate. This causes the pressure plate to rotate inward synchronously, pressing the edge of the plastic bag, effectively counteracting the offset caused by vibration or tension during the printing process, improving the printing effect, and ensuring a stable yield.

This utility model discloses a digital inkjet printing device, including a frame, and further comprising: a conveying section, including a circular rail and multiple fixture assemblies, the fixture assemblies being used to fix the product to be printed, and the fixture assemblies moving along the circular rail; a printing section, located above the conveying section, including multiple printheads and multiple UV lamps, the printheads and UV lamps being alternately arranged for printing and curing the product conveyed by the conveying section; a shielding section, located on the frame, including a first cylinder and multiple light-shielding plates, the light-shielding plates moving closer to or further away from the printing section with the movement of the first cylinder; and an ink receiving section, located below the printing section, including multiple ink receiving trays and a second cylinder, the ink receiving trays moving with the movement of the second cylinder to contact or separate from the printheads. Compared with existing screen printing technology, this application shortens the production cycle and improves work efficiency.

The invention provides a grid line printing plate and a solar cell. The grid line printing plate comprises a printing plate body and a plurality of strip-shaped grooves formed in the printing plate body. The strip-shaped grooves extend in the first direction and are distributed in an array mode in the second direction. The printing plate body comprises a first printing area and a third printing area which extend in the first direction, and the first printing area is closer to the edge of the printing plate body in the first direction relative to the third printing area. The opening area density of the strip-shaped grooves located in the first printing area is larger than that of the strip-shaped grooves located in the third printing area. Through the arrangement, the opening of the strip-shaped groove in the edge area of the printing plate can be relatively larger, so that slurry flows more smoothly at the edge in the scraping and printing process, and the problems of grid breaking, virtual printing and the like caused by too large pressure applied to the edge of a scraper or insufficient accumulation of the slurry are avoided.

The utility model discloses a kind of automatic wiping devices for solar screen printing plate processing, including base, the base front and rear both sides are provided with first moving assembly, the base top is provided with clamping frame by first moving assembly, the clamping frame surface is provided with second moving assembly, the clamping frame inside is provided with limit stop by second moving assembly, the limit stop is slidably connected with clamping frame, the base left and right sides are provided with driving assembly, the base top is provided with connecting plate by driving assembly, the connecting plate bottom is provided with lifting assembly, the connecting plate bottom is provided with frame by lifting assembly, the frame inside is provided with rotating assembly, the frame bottom is provided with mounting plate by rotating assembly, the mounting plate bottom is fixedly installed with wiping cloth. From front and rear left and right four directions to solar screen printing plate is clamped and fixed, can significantly improve the stability of screen printing plate in wiping process.

The application discloses a vertical silk screen printing machine convenient to adjust and a use method thereof, and belongs to the technical field of semiconductor circuit board processing equipment, and comprises a conveying belt, and a plurality of fixing assemblies are linearly distributed on the conveying belt. In the application, the first rotating shaft, the driving pulley, the driven pulley and the lead screw are driven to rotate by a motor, the threaded sleeve drives the silk screen net, the third rack, the first rack and the sliding plate to move downwards, the second rack, the rectangular sliding plate and the clamping block are further moved towards the semiconductor circuit board, the use position of the semiconductor circuit board is secondarily fixed, movement of the semiconductor circuit board in the silk screen printing process is prevented, and the silk screen printing work of the equipment and the use precision are prevented from being affected, the manual operation hand rocker is manually operated to drive the second rotating shaft and the second gear to rotate, the use position of the second rack and the clamping block is adjusted, the semiconductor circuit boards of different sizes are conveniently secondarily fixed and corrected, and the flexibility of the equipment in the use process is secondarily improved.

The application discloses a kind of silk screen printing machine prevents multilayer feeding circulation mechanism, to provide a kind of feeding circulation mechanism that can prevent material and multilayer overlap together due to electrostatic adsorption, and its technical solution points are, including rack, the rack one side is equipped with storage device, the rack includes frame, the frame one side is equipped with transmission device, the rack is also equipped with feeding device for handling material, the rack one end below feeding device is also equipped with circulation device side by side with storage device, the rack is also equipped with layered device between feeding device and circulation device, effectively reduce the situation that multilayer overlap together appears in printing feeding process by layered device, reduce the situation that printing error and blank appear, improve printing quality.

This invention discloses a method for preparing and applying a wearable formaldehyde gas sensor based on molecularly imprinted polymers. The preparation method includes the following steps: forming a heart-shaped electrode stepwise on a flexible substrate using screen printing technology; synthesizing a thin layer of polypyrrole-based molecularly imprinted polymer on the working electrode of the heart-shaped electrode using electropolymerization technology; immersing the synthesized electrode in a mixed solution of acetic acid and methanol; and drying to obtain the wearable formaldehyde gas sensor. This method and application of the wearable formaldehyde gas sensor, through a combination of molecular imprinting technology, screen printing, and electropolymerization, prepares a layered structure of "carbon paste-molecularly imprinted polymer" on a flexible substrate. It can rapidly respond to formaldehyde gas at ppm levels at room temperature, maintains good working condition during multiple bending tests, and exhibits extremely strong selectivity for formaldehyde in complex working environments. The preparation process is simple, low-cost, and highly practical.

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 relates to an intelligent screen printing device, a screen printing system, a control method, and a computer-readable storage medium, belonging to the field of thin-film battery manufacturing technology. The intelligent screen printing device is used for perovskite thin film screen printing and includes: a screen frame for supporting the screen; a tension sensing module disposed on the screen frame for real-time monitoring of the tension distribution in various areas of the screen; a temperature regulation module disposed on the screen frame for heating or cooling the screen; an electrostatic control module disposed above the intelligent screen printing device for generating an ion flow to eliminate static electricity accumulation during the printing process; and a control unit electrically connected to the tension sensing module, the temperature regulation module, and the electrostatic control module, respectively, for receiving monitoring signals and outputting control commands to achieve coordinated closed-loop regulation of tension, temperature, and electrostatics.

Device (10) for producing three-dimensional screen-printed workpieces, in particular a 3D screen printing system, comprising a printing screen (12), a squeegee device (14) having a squeegee tool for flooding the printing screen (12) with a printing mass and / or for pressing printing mass through the printing screen (12), and a control device (100) for executing a squeegee and / or screen setup routine, wherein the control device (100) is configured to establish, within the framework of a screen setup routine, an effective contact with force exerted by the squeegee tool (16) into the printing screen (12) between the squeegee tool (16), which is in a screen correction position and is preferably aligned based on its own weight and / or aligned by spring-assisted placement and / or spring-assisted pressing of the squeegee tool onto a substrate, and the printing screen (12), which is in a screen correction position.to produce free from contact between a printing table (22) and / or a printing base and / or at least one screen printing workpiece by the printing screen (12) and / or by the squeegee tool (16).

The utility model relates to the technical field of screen printing production and processing, disclose screen fixing device for environmental protection screen printing, including fixed bottom plate, the upper surface middle part fixed connection of fixed bottom plate has the article tray, the upper surface outside fixed connection of fixed bottom plate has fixed top plate, the outer wall one side sliding connection of fixed top plate has sliding plate no.

The application provides an electrochemical aptamer sensor for detecting adenosine and a preparation method and application thereof, and the electrochemical aptamer sensor for detecting adenosine comprises a gold electrode prepared by using a screen printing technology, a capture aptamer (ssDNA1) is added dropwise on the surface of the gold electrode, 6-mercaptohexanol (MCH) is added to seal the unbound active sites, then a complex of an adenosine aptamer (ssDNA2) capable of specifically combining with adenosine and a catalytic material (Pt-Cu-MWCNTs) is added dropwise, since the combination of adenosine-ssDNA2 is more stable than that of ssDNA1-ssDNA2, the double-stranded structure is destroyed, the catalytic material is released from the surface of the electrode along with the adenosine-adenosine aptamer complex, thereby causing the change of the catalytic response of the sensor to hydrogen peroxide, and the purpose of quantitatively detecting adenosine is achieved. The electrochemical aptamer sensor has the advantages of wide detection range, low detection limit, good on-site practicability and the like.