12 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 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.

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.

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.

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 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.