149 results about "Offset printing" patented technology

The utility model relates to a double lifting swing arm type offset printing mechanism which is characterized in that a printing roller station, a first lifting swing arm and a second lifting swing arm are arranged on a rack, a first mounting part for mounting a transfer printing roller is arranged on the first lifting swing arm, a second mounting part for mounting a printing roller is arranged on the second lifting swing arm, and the printing roller station is arranged above the first mounting part; the second mounting portion is disposed below the first mounting portion. A double-lifting swing arm structure is adopted, a transfer printing roller and a printing roller can be assembled, the corresponding transfer printing roller and the printing roller are lifted and lowered in a swing lifting mode, a large operation space can be vacated for assembly after the transfer printing roller and the printing roller swing and are separated from each other along with corresponding swing arms, the space occupied by the double-lifting swing arm structure is relatively compact, and the disassembly and assembly convenience of all the rollers is improved; the assembly of transfer rollers with different sizes and diameters and the like is met, the operation is stable, the size of the closing pressure is relatively convenient to debug and is not easy to interfere with each other when the closing pressure and the separating pressure are separated, and the closing pressure is lifted upwards and is not easy to conflict during the closing pressure.

The invention provides a particle surface printing process and a printed matter, and the printing process comprises the following steps: selecting basic color ink, and adding an acrylate modified polysiloxane-polyethylene wax composite additive into the basic color ink to obtain modified color ink; the modified color ink is applied to the surface of the printed matter through first printing equipment; uV gloss oil is applied to the surface of the modified color ink which is not dried after printing through second printing equipment; and enabling the assistant color ink layer and the UV gloss oil to be subjected to surface energy difference driven directional aggregation reaction by utilizing a UV curing lamp, so as to form a particle surface layer with a micron-sized granular structure. Compared with an existing reverse glazing process, the reverse glazing process has the advantages that the process steps are obviously reduced, the matte visual effect and the gravel touch effect are obtained simultaneously in one-time online offset printing, the consumption of special UV gloss oil can be reduced by about 20-30%, and the overall production efficiency is improved by about 15-25%.

The invention relates to the field of cigarette case production, in particular to a paper smoothing and cutting mechanism for cigarette case offset printing processing, which comprises a support table, a suction mechanism is mounted at the top of the support table, the suction mechanism comprises a shell, a connecting plate is movably connected to the top of the shell, and an air pump is connected to the top of the connecting plate. The air inlet end of the air extracting pump communicates with a hose, the bottom of the hose communicates with a U-shaped pipe, and the bottom of the U-shaped pipe communicates with a first pressing plate. Cigarette case paper can be adsorbed, the adsorbed paper can be transferred and fed, after die cutting of the cigarette case paper is completed, feeding operation can be automatically carried out, the paper is accurately conveyed to a printing processing area, manual paper transferring is not needed, the labor and time cost is greatly saved, the overall production efficiency is remarkably improved, and the production efficiency is improved. And large-scale and high-efficiency cigarette case printing production requirements can be better met.

This invention belongs to the field of concentration detection technology and discloses a novel method and application for measuring isopropanol concentration based on tilt angle. The method includes: sampling and pretreatment of the mixed solution; tilt angle detection and specific gravity calculation; data fitting and concentration correlation; data transmission and cloud platform uploading; and real-time display and closed-loop monitoring. This invention is specifically adapted to the mixed solution system of dampening solution, isopropanol, and water in the water tank of offset printing presses. It is unaffected by small amounts of impurities in the solution, and the equipment is waterproof and dustproof, adapting to the industrial environment of printing workshops. Compared with traditional manual sampling or dedicated concentration meter measurement methods, this invention is simple to operate, responds quickly, has low detection costs, and can provide real-time concentration data feedback. It is suitable for online monitoring of isopropanol concentration in industrial production scenarios such as offset printing, and has strong practicality and promotional value.

The utility model discloses an external ink storage device of a four-color offset press, relates to the technical field of four-color offset presses, and solves the problems that after an existing external ink storage device stores ink, if the external ink storage device is not used for a period of time, the ink in the external ink storage device is precipitated, and the existing external ink storage device generally uses the ink directly, so that the ink storage efficiency is low. The utility model relates to an ink jet device which solves the problems that an existing ink jet device does not have a filtering function and impurities in ink are prone to blocking an ink jet pipe after being used for a long time and comprises a main body, and a control panel is arranged on the front face of the main body. The stirring shaft and a motor drive the stirring shaft to rotate, centrifugal force is generated due to rotation of the stirring shaft, and then a movable seat is driven to rotate; the movable seat drives the movable rod to be thrown up in the rotating process, at the moment, the movable rod drives the beating plate to beat and stir the ink, the ink passes through the interior of the through hole in the high-speed rotating process of the stirring shaft, and the through hole is arranged to be wide outside and narrow inside so that the ink can be fully stirred.

The utility model relates to the technical field of cleaning devices for offset printing rollers, in particular to a rubber roller online cleaning device which comprises a cleaning module, a longitudinal adjusting module and a horizontal adjusting module, the cleaning module comprises a cleaning seat and a cleaning piece arranged on the cleaning seat, and the cleaning piece abuts against the outer surface of a rubber roller through the longitudinal adjusting module. The cleaning piece abutting against the outer surface of the rubber roller moves in the length direction of the rubber roller through the horizontal adjusting module, the horizontal adjusting module comprises a transverse strip and side supports arranged at the two ends of the transverse strip, the cleaning base is arranged on the transverse strip in a sliding mode, the transverse strip is connected with the longitudinal adjusting module through the side supports, and the longitudinal adjusting module comprises two vertical supports and a linkage assembly. The side supports longitudinally move along the two vertical supports through the linkage assemblies. According to the online cleaning device for the rubber covered roller, under the cooperation of the longitudinal adjusting module and the horizontal adjusting module, the rubber covered roller can be cleaned while the rubber covered roller runs, online cleaning of the rubber covered roller is achieved, and the cleaning efficiency of the rubber covered roller is improved.

The invention relates to a method for optimising the colouring of printing material sheets in an offset printing unit of a sheet-fed printing press, in which the colouring is continuously monitored by determining the colouring values ​​using a colour measuring device and the printing supply is controlled and, if necessary, adjusted on the basis of an evaluation of the colouring values ​​by a computer.

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.

This invention belongs to the field of three-dimensional offset printing technology for shoe uppers, specifically a multi-layer offset printing process for three-dimensional shoe uppers and the resulting shoe upper. The shoe upper includes a base fabric and multiple layers of offset printing. The base fabric is made of breathable mesh synthetic fiber filaments, and the multiple layers of offset printing are environmentally friendly liquid silicone offset printing layers. The base fabric and the multiple layers of offset printing are bonded together at high temperature. This shoe upper process, through a printing mechanism using a motor-driven bevel gear and lead screw transmission, drives a scraper to reciprocate at a uniform speed, while an ejector column clears the glue outlet, achieving uniform spreading and quantitative dispensing of the offset material. This solves the problems of glue blockage and uneven glue layer thickness, ensuring the texture regularity and thickness consistency of 3-5 layers of gradient offset printing, significantly improving the appearance and texture of the three-dimensional shoe upper.

The utility model discloses a high-gloss offset printing mechanism for paper cups, which belongs to the field of paper cups and comprises a bottom support plate, a vertical support plate is fixed at the top of the bottom support plate, and a circular rotating disc is rotatably connected in the vertical support plate. A plurality of transverse rotating columns are rotationally connected into the circular rotating disc, a fixing mechanism used for fixing paper cups is arranged at one end of each transverse rotating column, a rotating mechanism used for rotating the first driving motor is arranged at one end of the circular rotating disc, each fixing mechanism comprises a circular fixing block, and the circular fixing blocks are fixed into the transverse rotating columns; a second transverse hydraulic cylinder is fixed to one end of the circular fixing block, through operation of the second transverse hydraulic cylinder, the clamping force of the inclined supporting block can be automatically adjusted according to different cup types, the problem that pressure is too large or insufficient due to traditional spring clamping is solved, the printing stability is ensured, and cup bodies are prevented from being deformed and damaged.

The utility model relates to the technical field of printing equipment, and provides an offset press stable paper collecting device which comprises a paper collecting table arranged at the rear end of a conveying belt of an offset press, a limiting mechanism is arranged on the side, away from the conveying belt, of the paper collecting table, and the limiting mechanism comprises a rotating shaft rotationally erected on an offset printing bin on the offset press and a plurality of stopping pieces arranged on the rotating shaft at intervals. The top end of the blocking piece is normally higher than the paper collecting table so that a paper collecting station can be formed between the blocking piece and the paper collecting table. A paper stacking mechanism used for forcing the side faces of the printing paper to be aligned is further arranged on the outer side of the paper collecting station. According to the stable paper collecting device of the offset press, printing paper falling into a paper box can be stacked in order, and subsequent printing paper arrangement and collection are facilitated.

The present application relates to printing equipment technical field, disclose a kind of cigarette packaging offset printing quick positioning clamping device.The present application includes: fixed frame, two clamping mechanisms and the cleaning mechanism for automatically flushing clamping mechanism are provided on the fixed frame;Clamping mechanism includes the T-shaped sleeve rotationally connected with the fixed frame, T-shaped sleeve is provided with the T-shaped top shaft that can be axially telescopic, by telescopic plate roller is clamped and limited, T-shaped sleeve and T-shaped top shaft between being provided with the bellow for blocking ink intrusion;Cleaning mechanism includes the slot ring covered in the bellow outside, slot ring is provided with the annular nozzle connected with external water supply equipment and the absorption cavity connected with external water pumping equipment.The present application effectively solves the ink pollution problem by physical isolation and automatic cleaning, improves equipment life and production efficiency.

The utility model discloses a roller adjusting device for a flat-plate offset press, which belongs to the technical field of flat-plate offset presses and comprises a flat-plate offset press frame for supporting a roller for the flat-plate offset press, adjusting grooves are arranged on two sides of the flat-plate offset press frame, and moving blocks are slidably connected in the adjusting grooves. An impression cylinder for offset lithography is rotatably connected to the interior of the moving block, a hollow column is welded to the top of the moving block, a spring is arranged in the hollow column, a contact is installed on the inner bottom wall of the hollow column, one end of the spring is connected with a moving disc, and the moving disc slides in the hollow column; according to the device, the automatic compensation capacity of the adjusting gap can be improved, deviation of the relative position of the roller caused by gap change is prevented, front and back printed patterns can coincide more accurately, and overprinting is more accurate.

The utility model discloses an offset press ink supply device which comprises a box body, a box door is hinged to the front side of the box body, an ink inlet pipe is fixedly connected to one side of the box body, and an ink outlet pipe is fixedly connected to the other side of the box body. The utility model belongs to the technical field of offset presses, and particularly relates to an ink supply device of an offset press, which solves the problems that the offset printing quality is influenced and resources are wasted due to non-uniform offset printing patterns caused by non-uniform ink supply quantity.

The utility model discloses a kind of offset press ink heating devices, comprising: heating device, heating device side is provided with control panel, heating device inside is provided with heating bin, heating device top is provided with accommodating groove, accommodating groove inside is provided with ink tank, folding cover plate is movably arranged at the top of ink tank, accommodating groove outside is provided with fastening assembly, ink tank outside is provided with handle, fastening assembly includes first fastening block movably arranged in the inner wall of accommodating groove two sides, second fastening block is arranged in the inner wall of accommodating groove two ends.The utility model can fix ink tank of different sizes by the first fastening block and the second fastening block in accommodating groove to the inside movement, the size of positioning lug and positioning groove is adapted, positioning lug and positioning groove are conical prism, positioning lug is conveniently and quickly slid into the positioning groove in the bottom of ink tank, and ink tank is positioned by clamping.

The invention discloses a waste marking method and marking mechanism suitable for a web offset printing online detection system, and relates to the technical field of web offset printing and online detection matching. The method comprises the steps of online detection, triggering, marking and resetting, specifically, an online detection system generates a signal after detecting printing defects, a triggering mechanism ejects airflow to enable paper to elastically deform, the paper makes contact with a marking wheel of an ink guide assembly to form a linear mark, and the paper is reset by means of the tension of the paper. The mechanism comprises an ink guiding assembly and a triggering mechanism which are arranged on the two sides of paper respectively, the ink guiding assembly is in closed transmission with a round belt through a belt wheel to achieve continuous ink guiding, the triggering mechanism is in linkage with an online detection system, and fan-shaped airflow is jetted through an air nozzle to be in precise butt joint with the ink guiding assembly. A complex mechanical structure is not needed, ink splashing and image-text pollution are avoided, marking response is fast, the position is stable, recognition is clear, and the method is suitable for high-speed continuous production.

The utility model provides a hot air drying device for intaglio printing drying, which relates to the technical field of hot air drying devices for intaglio printing drying and comprises a conveying table, a drying cover is fixedly connected onto the conveying table, an air pump is fixedly connected onto the drying cover, the output end of the air pump is fixedly connected with an air outlet pipe, and the output end of the air outlet pipe is fixedly connected with an air inlet pipe. A plurality of air outlet nozzles are arranged on the air outlet pipe, a heating box is fixedly connected to the drying cover, the input end of the air pump is fixedly communicated with the heating box, two heating pipes are fixedly connected into the heating box, and a purification structure is arranged on the drying cover. The utility model solves the problems that printing ink used in intaglio printing usually contains various organic solvents, such as methylbenzene, dimethylbenzene, ethyl acetate and ethanol, the organic solvents can be volatilized into air along with evaporation of the solvents in the printing ink in the hot air drying process and become main components of exhausted gas, and if the organic solvents are not treated, the organic solvents cannot be used for exhausting the gas. And harm to human bodies and the environment is easily caused.

The utility model provides a kind of offset press with ink adjustment, belong to offset press field, including offset press body, ink roll and ink barrel, the inside fixed mounting of offset press body is used for adjusting ink amount adjusting assembly, the inside rotatory mounting of ink barrel is used for mixing ink stirring assembly, the side fixed mounting of adjusting assembly is used for the ink outlet assembly for supplementary regulation ink amount;The utility model is equipped with adjusting assembly, so that ink amount regulation is more accurate and stable, can effectively guarantee the consistency of printed matter ink color in large quantities printing, reduces the quality fluctuation caused by human experience difference, significantly improves the quality and efficiency of printing, accurate ink regulation can not only reduce the waste of ink, also effectively reduce printing cost, while uniform mixing makes the viscosity and fluidity of ink stable, to enhance transferability and adhesion in printing process, ensure printing effect.

One or more acrylates in which 25 to 85% of at least one acrylate is pentaacrylate or hexaacrylate; 0 to 20% of one or more photoinitiators; 5 to 60% of one or more rosin-modified polyester resins having a molecular weight of 5,000 to 35,000 daltons; 0.2 to 5% of one or more aluminum additives; 0.1 to 5% of one or more polymerization stabilizers; and 0 to 50% of a colorant. An LED-curable lithographic ink containing these components.

A method for inline offset flexographic printing of tactile ink involves using an offset color printing unit to print a base color on the surface of a paper packaging box, followed by two or more flexographic printing steps to print the tactile ink onto the paper packaging box, resulting in a tactile ink thickness of ≥6μm on the packaging box surface. After finishing the paper packaging box using this method, the surface exhibits a matte gloss effect, and a subtle velvety feel can be detected by touch, enhancing the packaging box's aesthetics. Compared to single-pass printing of tactile ink, this invention uses a two-step flexographic printing process, improving the leveling effect of the tactile ink on the paper packaging box surface, increasing the ink thickness, and effectively reducing the accumulation of tactile ink during printing due to increased ink thickness and viscosity. Inline production results in less product deformation, smoother subsequent processes, and improved efficiency and product yield in later stages.

The utility model discloses efficient battery adhesive tape slitting equipment, and relates to the technical field of battery adhesive tape slitting equipment. The efficient battery adhesive tape slitting equipment comprises a supporting base, a roller is arranged on the supporting base, connecting pieces are arranged on the supporting base, a blade base is connected into the supporting base in a sliding mode, a cutting unit is arranged on the blade base, and an additional rod is arranged between the connecting pieces. According to the efficient battery adhesive tape slitting equipment, the structure that the additional rod is clamped between the connecting pieces is adopted, the cutting unit in the additional rod can separate a small roll of adhesive tape from a large roll of adhesive tape after slitting of the cutting unit is completed, the situation that the small rolls of adhesive tape are stuck after being cut is effectively prevented, and the workload after the small rolls of adhesive tape are taken down in the later period is reduced; the purpose that the side face of the slit small roll of adhesive tape is free of offset printing is achieved.

The utility model belongs to the technical field of printing production, and particularly relates to an offset printing device which comprises a base frame, and further comprises a swing mechanism, a first driving mechanism, a second driving mechanism, a third driving mechanism and a fourth driving mechanism, the traction mechanism comprises a first traction roller, a pressing roller and a driving part, the first traction roller is used for pulling the flexible material to move in a routing mode, the pressing roller is used for abutting against the flexible material which passes through the first traction roller in the routing mode, and the driving part is used for driving the pressing roller to move; the printing mechanism is used for printing flexible materials; the adjusting mechanism comprises a second traction roller, a second passing roller and a second swing roller, and the second swing roller is movably arranged on the base frame in the X direction and located between the second traction roller and the second passing roller; the printing mechanism has the advantages that waste of flexible materials is avoided, meanwhile, the flexible materials located on the downstream of the printing mechanism are prevented from being pulled and broken, the flexible materials located on the upstream of the printing mechanism are prevented from loosening and mopping the ground, the structure is simple, convenience and practicability are achieved, and economic benefits are high.

The invention discloses UV-LED (Ultraviolet-Light Emitting Diode) curing offset printing ink, which is characterized by comprising the following components in parts by mass: 40 to 60 parts of oligomer; 10 to 30 parts of an active monomer; 5 to 15 parts of a photoinitiator; 20 to 50 parts of pigment filler; and 0.1-2 parts of an auxiliary agent. The invention also discloses a preparation method and application of the compound. The UV-LED curing offset printing ink disclosed by the invention is good in demulsibility, good in transferability, high in curing speed, low in odor and relatively good in adhesive force to gold and silver card paper.

The utility model discloses a novel offset printing and cold stamping composite film which comprises a lower release layer, a UV glue layer, a positioning bottom layer, an aluminum plating layer, an imaging layer and an upper release layer, a magnetic layer is fixedly arranged on the upper surface of the positioning bottom layer, a base material layer is fixedly arranged on the upper surface of the magnetic layer, the upper surface of the aluminum plating layer is fixedly connected with the lower surface of the imaging layer, and the lower surface of the imaging layer is fixedly connected with the UV glue layer. A storage groove is formed in the upper surface of the imaging layer, a reflective layer is arranged in the storage groove, a holographic pattern layer is fixedly arranged on the upper surface of the reflective layer, a wear-resistant layer is fixedly arranged on the upper surface of the holographic pattern layer, and the edge of the lower surface of the wear-resistant layer is fixedly connected with the upper surface of the imaging layer; a packing groove is formed between the edge of the upper surface of the positioning bottom layer and the edge of the lower surface of the wear-resistant layer, and a corrosion-resistant layer is fixedly arranged in the packing groove. The technical scheme is reasonable in structural design, can be adsorbed on the surface of an iron or magnetic product, and is good in wear resistance, good in corrosion resistance, long in service life and good in practicability.

Sheet-fed rotary printing press with a feeder, a delivery unit and one or more offset printing units and / or coating units arranged between the sheet feeder and the delivery unit, each having a sheet guide cylinder and a sheet conveying device, wherein a folding device is arranged between the last offset printing unit or coating unit and the delivery unit.

The invention relates to a manufacturing method of sheet-fed offset printing ink suitable for multi-color-gamut high-speed printing, which is characterized by comprising the following steps of: obtaining a functional resin composition taking high-polymerization-force and high-solubility resin as a core, mixing and dissolving the functional resin composition with a solvent to prepare an ink binder intermediate with high polymerization force to high solvent release property, and mixing and grinding the ink binder intermediate with pigment and auxiliaries to obtain the sheet-fed offset printing ink suitable for multi-color-gamut high-speed printing. The color offset printing ink with relatively large cohesion and relatively small viscosity is obtained. The ink has the characteristics of high viscosity and low viscosity, good fluidity, super-strong adhesive force, extremely high drying speed, excellent solvent release property, smooth transfer printing and high quality of excellent printing adaptability, is suitable for multi-color-gamut high-precision high-speed printing, and can always keep the transfer printing stability in the operation of a multi-color-group printing machine.

The invention discloses an offset printing gloss oil composition for endowing a printed matter with a silky touch feeling. The offset printing gloss oil composition comprises an oily binder and a touch feeling filler. The core of the touch filler is lamellar silicate mineral particles, preferably bentonite organically modified by long-chain quaternary ammonium salt, and can be compounded with oligomeric silsesquioxane and / or nano polytetrafluoroethylene particles. The addition amount of the touch filler in the composition is 5-15%. The invention also provides a method for forming a touch functional layer by coating and curing the composition through an offset printing process, and a prepared printed matter with smooth touch. According to the scheme, the problem that a lubricating structure of traditional bentonite in an oily system is easy to damage is effectively solved, the low-cost mineral filler is utilized, a standard offset printing process is adapted, and excellent and lasting silky touch can be economically and efficiently achieved.

This invention discloses a high-precision flying shear cutting device for offset printing plates based on online length adjustment. It includes a connecting base with a cutting base inside. A conveyor frame is mounted on one side of the connecting base, and an adjusting frame is mounted on the top of the conveyor frame. A transmission shaft is mounted on the outer end of the conveyor frame, and a set of conveyor tables is mounted on the adjusting frame. The adjusting frame, in conjunction with the transmission shaft, is used for auxiliary conveying of the printing plate. Rotary shafts are mounted on each conveyor table, and telescopic shafts are mounted on the top of the rotating shafts. A docking cylinder is mounted on one end of each telescopic shaft. Compared with existing technologies, the advantages of this invention are that the telescopic and rotating shafts provide real-time feedback on the printing plate position and compensate for tool wear; the lifting shaft enables self-cleaning of the conveyor belt; rubber rollers, in conjunction with pressure sensors, detect flatness at multiple points; the transmission shaft presses to prevent tilting; and the pushing and linkage grinding shaft cleans the edges. The coordinated action of these mechanisms improves the cutting accuracy, production consistency, and transport reliability of offset printing plates.

This utility model discloses a protective device for offset printing machines, belonging to the technical field of offset printing machine protective equipment. It includes a mounting frame, an electric cylinder, a tilting mechanism, a scraping mechanism, and a collecting mechanism. The electric cylinder is fixedly mounted on the mounting frame. The tilting mechanism includes a third connecting rod and a rotating assembly. The rotating assembly is connected to the telescopic end of the electric cylinder and to the third connecting rod. The third connecting rod is rotatably mounted on the mounting frame. The electric cylinder can drive the third connecting rod to rotate along the mounting frame via the rotating assembly. The scraping mechanism includes a collecting frame and a moving assembly. The collecting frame is fixedly mounted on the third connecting rod. The moving assembly is connected to the rotating assembly. The rotating assembly can drive the scraper block to slide along the inner wall of the collecting frame via the moving assembly. The collecting mechanism includes a collecting pipe and a collecting assembly. The collecting pipe is fixedly mounted below the collecting frame. The collecting assembly is connected to the collecting pipe. The collecting frame can communicate with the collecting pipe via the collecting assembly. This utility model achieves the collection of splashed ink.