24 results about "Letterpress printing" patented technology

1. The name of the design product: letterpress printing machine. 2. The use of the design product: for printing machine. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

The present invention provides a photopolymerizable photosensitive resin composition for letterpress printing plates that enables fine image reproduction with short exposure times, without increasing the amount of ultraviolet irradiation or improving the ultraviolet transmittance of the photosensitive resin layer. [Solution] A photosensitive resin composition for letterpress printing plates, comprising at least a water-soluble or water-dispersible polyamide, an ethylenically unsaturated compound, and a photopolymerization initiator, wherein the photosensitive resin composition contains 5 to 50% by mass of the ethylenically unsaturated compound, and the ethylenically unsaturated compound contains 10% by mass or more of an ethylenically unsaturated compound having a heterocyclic structure including an ether linkage.

The present application provides a photopolymer printing original plate for relief printing, which has excellent resistance to swelling of an oily ink containing an ester compound. A photopolymer printing original plate for relief printing, which has a photosensitive resin layer formed from a photosensitive resin composition containing at least a high molecular compound (A), a dibasic acid diester (B) represented by the following general formula (I), a photopolymerizable compound (C), and a photopolymerization initiator (D), characterized in that the content of the dibasic acid diester (B) in the photosensitive resin composition is 2.5 to 15 mass %.(In the formula, R 1 represents a divalent aliphatic hydrocarbon group having 2 to 8 carbon atoms, a divalent aromatic hydrocarbon group having 6 to 14 carbon atoms, or a divalent aliphatic cyclic hydrocarbon group having 4 to 14 carbon atoms; R 2 and R 3 may be the same as or different from each other, and represent a linear or branched aliphatic hydrocarbon group having 1 to 12 carbon atoms.)

1. The name of the designed product: letterpress printing machine (manual). 2. The use of the designed product: for printing. 3. The design points of the designed product: in shape. 4. The picture or photo that best shows the design points: perspective view 2. 5. The top view is shown in perspective view 1, and the bottom view is omitted; the bottom surface of the designed product is not easily visible or invisible during use, and the top view is omitted.

The present invention relates to a safe embossing printing ink which can be used in dry offset and common offset printing systems as well as inkjet offset digital printing systems to promote a wide range of markets, such as industrial and commercial packaging, food, pharmaceutical, health, cosmetics, in particular on paper and paper, in particular on paper, in particular on paper. The invention relates to an ink composition which can be used in security documents and packaging in the field of printing using embossing printing, which achieves a significant reduction in cost by obtaining the desired product at a time, and which comprises an ink composition comprising at least one UV-curable photopolymerization initiator (1) material, at least one filler material (2) with thickening properties, and at least one pigment (3). At least one polymer material (3), at least one antistatic material (4), at least one antioxidant ingredient (5), at least one ultraviolet blocking material (6), an aerosol (7) as at least one moisturizing and anticoagulant material, at least one additive (8) having wetting, dispersing, leveling, defoaming, rheology modifying properties, at least one curing agent (9), at least one coloured pigment (10).

The utility model discloses a chamfer correcting device of a bending machine, which comprises a panel, symmetrical bearing plates are movably connected onto the panel, rotating motors are correspondingly and fixedly connected onto the bearing plates, a slot is arranged on the panel, a movable plate is movably connected into the slot, a plurality of bases are fixedly connected at the lower end of the panel, and the bases are fixedly connected with the rotating motors. Symmetrical guide rails are fixedly connected to the side face of the open groove, symmetrical limiting grooves are formed in the movable plate, symmetrical threaded shafts are movably connected between the synchronous motors, symmetrical threaded holes are formed in the movable plate, a guide motor is movably connected into the movable plate in a penetrating mode, and a mounting groove is formed in the side face of the rotating rod. By means of the structure, the chamfering requirements of materials of different specifications are met, it is guaranteed that the chamfering position is accurate, the machining efficiency and precision are improved, deviation during machining is prevented, disassembly and replacement are convenient, the maintenance cost is reduced, equipment cleanliness is guaranteed, and the service life is prolonged.

The utility model relates to the technical field of rotary press equipment, in particular to an automatic inking letterpress printing mechanism of a trademark rotary press, which is characterized in that an inking unit is fixedly arranged on a rack, an inking roller is rotatably arranged on the inking unit through a bearing, an ink supply roller is arranged on the side of the inking unit and is rotatably arranged on the rack through a bearing, and the inking roller is arranged on the rack through a bearing. The two ink guide ducts are vertically arranged and fixed to the wall of the side, facing the ink supply roller, of the ink coating unit in a penetrating mode, the main ink transfer roller is movably arranged in one ink guide duct, the two supporting shafts are fixedly arranged on the rack in a front-back symmetry mode, and the two main supporting arms form a set and are rotationally arranged on shafts at the two ends of the main ink transfer roller through bearings correspondingly. The other end of the main supporting arm is rotationally arranged on the supporting shaft through a bearing; according to the ink supply device, the double-ink-transfer-roller structure is arranged, the two sets of ink transfer rollers are alternately pushed through the gear-adjustable driving structure to make contact with the ink supply roller, continuous ink supply to the inking structure is achieved, and therefore the problem of ink shortage is effectively solved.

The application relates to the technical field of letterpress printing, in particular to a one-way driving device for film processing, which is characterized in that a one-way bearing is connected with a first driving motor and an oil absorption roller, independent driving of the first driving motor and the oil absorption roller is realized, the first driving motor is connected with the oil absorption roller through the one-way bearing, rotation of the oil absorption roller is no longer dependent on existence of a transmission assembly, the first driving motor independently drives the oil absorption roller to continuously rotate, and the situation that oil on the surface of the oil absorption roller is dried due to long-time static because the transmission assembly cannot transmit the rotating motion to the oil absorption roller is reduced; when the transmission assembly normally operates, the first driving motor does not operate, and the one-way transmission characteristic of the one-way bearing blocks reverse torque of the oil absorption roller from being transmitted to the first driving motor, so that the probability of reverse damage of the first driving motor is reduced.

The invention discloses an intermittent size roller device for letterpress printing, relates to the technical field of letterpress printing equipment, and aims to solve the problems that a size roller needs to be frequently replaced, the operation is complicated and the printing precision is insufficient in a traditional device. The device comprises a main traction mechanism, a printing mechanism, a transmission mechanism, a detection control mechanism and a size roller driving mechanism, the main traction mechanism drives a printing film to be conveyed, the printing mechanism achieves pattern transfer printing through an engraving offset plate on the surface of a size roller, the transmission mechanism guarantees synchronous rotation of all components, the detection control mechanism accurately monitors the conveying length of the film and the position of the engraving offset plate, and the size roller driving mechanism adopts a servo motor to drive the size roller to intermittently rotate. The device can adapt to different printing length requirements without changing size rollers, through cooperative work of all mechanisms, the printing precision and efficiency are improved, the production cost is reduced, and the device is suitable for various letterpress printing scenes.

The utility model belongs to the field of label printing, and relates to manufacturing of washing relief printing plates, in particular to a multi-layer laminating device suitable for the washing relief printing plates, which comprises a spraying unit, a laminating pressure unit and a laminating platform unit. The spraying unit is positioned below the covering platform unit, and can move parallel to the covering platform unit and move perpendicular to the covering platform unit; the laminating pressure unit is positioned above the laminating platform unit and can move in parallel to the laminating platform unit; the covering platform unit comprises a covering platform and an overturning power shaft; the overturning power shaft is located on the bottom surface of the covering platform and can drive the covering platform to rotate by 180 degrees; and meanwhile, the covering platform is provided with a negative pressure exhaust hole. According to the device, single-piece coating or thin-layer coating can be adopted, a drying system is greatly shortened, and coating is completed on line.

The invention discloses a printing sheet with a 3D expansion effect, a preparation method of the printing sheet and a packaging hose. According to the preparation method, an optical basic principle is converted into a visual effect principle, printing, copying and restoring are finally converted into proportion matching and dot shape design of artwork dots, then a finally designed file is transmitted to a digital plate making machine for laser engraving, and manufacturing of a printing plate material is completed. And then the multi-color dots are transferred to the printing blank base material through the printing process technologies such as flexographic printing, letterpress printing or offset printing, so that the printed pattern forms a 3D expansion effect.

A system for printing documents and anti-forgery security papers especially banknotes is provided. The system includes a mechanical feeding mechanism, a hologram pattern print section, an invisible, fluorescence color and main colors pattern printing section using at least three units of ink jet, a varnish coating section, a rotating cylindrical silkscreen printing section for optical variable ink (OVI), a raised printing section, a delivery section, a paper and handle receiving section and a central computer control section. The system has been introduced to create various security features in securities wherein all of the processes including the raised printing are introduced in an all-in-on device.

The utility model discloses a multifunctional digital printing machine, which relates to the technical field of digital printing machines and comprises a digital jet printing unit, one side of a first flexographic printing unit and one side of a second flexographic printing unit are respectively and fixedly provided with a discharging unit and a letterpress printing unit, and one side of the letterpress printing unit is fixedly provided with an intermittent die cutting unit and a receiving unit. A dust removal assembly is fixedly arranged on one side of the discharging unit and used for cleaning dust attached to the surface of the printing paper, and the dust removal assembly comprises a storage cabinet. Air in the storage cavity is pumped out through the first U-shaped material pumping pipes and the second U-shaped material pumping pipes, dust attached to the surface of printing paper is pumped out and discharged into the collecting frame through the L-shaped discharging pipe to be collected in a centralized mode, and therefore the dust attached to the surface of the printing paper is cleaned away, the subsequent printing effect is prevented from being affected, and the printing efficiency is improved. And the printing quality is ensured.

The utility model relates to the technical field of label printing, in particular to a portable label printer, which is characterized in that an elastic sheet is arranged in a shell, the elastic sheet is always in compression joint with an elastic claw so as to keep the elastic claw in a trend of being far away from concave lines, and an operating handle is pressed by a hand to enable letterpress printing lines to be matched with the concave lines. After a letterpress mark is embossed on the label tape, the elastic sheet applies an acting force to the elastic claw through the elastic restoring force of the elastic sheet, so that letterpress lines are automatically separated from the label tape, the label tape can be ensured to smoothly move, the phenomenon that the label tape is stuck or the label tape can be pulled out by applying force by a hand is avoided, and the use experience of a product is improved.

This utility model relates to the technical field of letterpress printing, and in particular to a letterpress printing drying device, including a printing machine body. A mounting box is welded to the top of the printing machine body, and a flow-diverting component is provided on the top wall of the mounting box. Oscillating blade components are provided on both sides of the mounting box. This utility model divides the drying area into independent air ducts using three sets of partitions. With the addition of branch air ducts and airflow regulating valves, local airflow can be finely adjusted for different printing areas. Reducing the airflow at the edges of the printed pattern effectively prevents ink from splashing due to excessive airflow impact, avoiding blurred edges or ink stains. An electric actuator drives a connecting column, causing a rack to slide back and forth. Through gear and shaft transmission, the oscillating blades achieve an "S-shaped" sweeping airflow. This path breaks the traditional fixed-point airflow impact mode, allowing hot air to dynamically cover the printing surface, avoiding ink accumulation or uneven drying caused by excessive local airflow pressure.

1. Name of the designed product: building blocks (letterpress printing). 2. Use of the designed product: a building block. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: perspective view.

The utility model relates to the field of letterpress printing, and discloses packaging box letterpress anti-fake three-dimensional printing equipment which comprises a fixed base, a power assembly is fixedly connected to the top end of the fixed base and used for providing linear power, a connecting rod is fixedly connected to the bottom end of the power assembly, a printing frame is fixedly connected to the bottom end of the connecting rod, and the printing frame is fixedly connected to the bottom end of the printing frame. A connecting frame is fixedly connected to the top end of the fixed base, a fillet sliding rail is fixedly connected to the inner side of the connecting frame, a sliding rod is slidably connected to the interior of the fillet sliding rail, a rubber roller is fixedly connected to the periphery of the sliding rod, and a rotating connecting rod is rotatably connected to the periphery of the sliding rod. According to the letterpress printing device, by arranging the connecting shaft, the rotating connecting rod, the fillet sliding rail and other structures, after one-time letterpress printing is completed, the rotating connecting rod drives the rubber roller to move inwards, printing ink is smeared on the surface of a letterpress, manual operation or arrangement of an additional electric push rod is not needed, and the letterpress printing device is convenient to use, low in cost and suitable for being used by small and medium-sized enterprises.

Based on a different principle than conventional products, we provide clothing and textiles that can resolve disruptions in bioelectric currents, normalize blood flow, increase and activate blood flow within the skin, improve the circulation of bodily fluids, and alleviate various physical ailments such as stiff shoulders and neck, and muscle pain, more effectively than conventional products. [Solution] A nanodiamond-containing garment characterized by having a nanodiamond solution attached to the body-contacting side, back side, or both sides of the garment by inkjet printing, silkscreen printing, letterpress printing, adhesive pressing, iron-on transfer method, handwriting, brush writing, or impregnation dyeing method.

The utility model discloses a water cooling device for efficiently cooling an LED of a letterpress printing machine, which relates to the technical field of LED cooling of printing machines and comprises a shell, a circuit board fixedly connected to the lower side of the shell, lamp beads fixedly connected to the lower surface of the circuit board, and a cooling component mounted in the shell and comprising a cooling fin I fixedly mounted in the shell, a main cooling pipeline is arranged in the shell in a penetrating mode, a connecting shell is detachably connected to the shell, second cooling fins are fixedly connected to the interior of the connecting shell, the second cooling fins abut against the first cooling fins, an expansion cooling pipeline is arranged in the second cooling fins in a penetrating mode, and a cooling fan is fixedly connected to the top of the connecting shell; the outer wall of the cooling fan is covered with a dust cover, a filter plate is slidably connected to the position, close to the lower side of the cooling fan, in the connecting shell, and air outlets are distributed in the side wall, located below the filter plate, of the connecting shell. According to the utility model, a double heat dissipation guarantee mechanism with water cooling as a main part and air cooling as an auxiliary part is formed, and heat generated by the lamp beads can be quickly and continuously led out.

The utility model discloses a mining chain marking mechanism which comprises a base, a power cylinder assembly is arranged above the base, a marking assembly is arranged at the lower end of the power cylinder assembly, an adjustable limiting assembly is arranged on one side of the base, a placing platform is arranged in the base, the adjustable limiting assembly comprises a limiting rod, and the limiting rod is arranged on the base. The two ends of the limiting rod are connected with the base through adjusting bolts respectively, a limiting block is arranged on one side of the limiting rod, a fixing block is arranged on the other side of the limiting rod, and the limiting block is connected with the fixing block through a bolt. The marking device is mainly used for marking a mining chain, the marking block is driven by the power cylinder to carry out letterpress printing, a mark is extruded on a chain ring, the labor intensity of workers is reduced, and the working efficiency is improved.

The invention discloses a variable code multi-scene management method fusing a block chain and letterpress printing, and belongs to the technical field of anti-counterfeiting and traceability, and the method comprises the following steps: generating unique variable code data for each product unit, binding the unique variable code data with product information, uploading the bound data to a block chain for evidence storage, and generating a transaction record containing a hash value; designing a corresponding visual pattern for the variable code and associating; a concave-convex integrated printing technology is adopted, high-viscosity relief printing ink and adjustable pressure equipment are used, and a variable code pattern with a touchable concave-convex effect is printed on a product carrier; anti-copying information such as optically variable ink and micro characters is embedded in the printing process or after the printing process; and during verification, identifying anti-copy features through an image acquisition device, judging whether the anti-copy features are original elements, reading variable code data, comparing the variable code data with block chain information, and returning corresponding information or instructions according to scenes. According to the method, data anti-counterfeiting of the block chain and physical anti-counterfeiting of letterpress printing are combined, and efficient, anti-copy and multi-scene applicable credible management is realized.

The application relates to an ink drying device of a letterpress printing machine, which comprises a sealed preheating channel arranged at the bottom of an ink storage cylinder, and an air inlet pipe and an air outlet pipe arranged on the ink storage cylinder and communicated with the preheating channel; a microwave generating device is arranged in a hard plastic bin of a drying assembly; the hard plastic bin is a sealed part, and a through groove is arranged for the passing of printed pieces; the microwave generating device is arranged in the hard plastic bin, and the microwaves generated by the microwave generating device can quickly and comprehensively dry the water-based ink from inside to outside, and cannot cause the false dry and sticky phenomenon; in addition, the generated excessive heat is sent into the preheating channel of the ink storage cylinder through a gas collecting cylinder and an exhaust fan, the water-based ink is preheated, energy recycling is realized, and the utilization rate is improved. In addition, the cabin wall of the hard plastic bin is provided with a heat insulation coating and a heat insulation cover, heat loss is avoided, the excellent heat absorption of the iron material is avoided, and the heat utilization rate is further improved.

The utility model relates to a quick-drying and cooling double-sided printing paper collecting device, and belongs to the technical field of letterpress printing, the quick-drying and cooling double-sided printing paper collecting device comprises a fixing plate, the top of the fixing plate is fixedly provided with a connecting seat, a connecting seat, a bearing seat and two supporting plates, the connecting seat is rotatably connected with a winding barrel, and the connecting seat is rotatably connected with a paper separating barrel; a bearing seat is arranged on the supporting plate, a rotating shaft is rotationally connected to the bearing seat, a connecting cylinder is fixed to the outer side of the rotating shaft, an extrusion assembly is arranged on the bearing seat, a servo motor is fixed to the top of the bearing seat, a cooling assembly is arranged on an output shaft of the servo motor, and a quick-drying assembly is arranged on the supporting plate. According to the quick-drying and cooling double-sided printing paper collecting device, the rolling effect of the device is improved, the cooling assembly is driven by the servo motor to operate, swing blowing cooling of printing paper is achieved, the quick-drying and cooling effect of the printing paper is achieved through the arrangement of the drying assembly, the using effect of the device is improved, and the overall rolling effect of the device is good.

The utility model belongs to the technical field of printing equipment, and particularly relates to a large-water-cooling-roller double-servo flexographic printing unit which comprises a printing unit body. An ink path system is mounted in the printing unit main body; the middle part of the ink path system is fixedly connected with an ink supply fountain; the middle part of the ink path system is fixedly connected with an ink path position adjuster; a plate roller position adjuster is mounted in the middle of the printing unit main body; a letterpress printing bottom roller is installed in the middle of the printing unit body. According to the letterpress printing unit, the letterpress printing plate roller and the letterpress printing bottom roller are arranged, the position of the ink path system is adjusted front and back in a large range, then the position of the letterpress printing plate roller is adjusted left and right, the letterpress printing unit can be suitable for letterpress printing plate rollers with different diameters, and the variable range of the diameter of the plate roller is large so as to meet the printing requirements of different typesetting patterns; the unit is further provided with an independent letterpress printing bottom roller, and during printing work, the paper feeding mode is continuous paper feeding, so that the unit can be mixed with other configurations on a printing machine to conduct on-line high-speed operation work.