11 results about "Organic photoconductor" patented technology

The utility model relates to the technical field of printing devices, and discloses an organic photoconductor drum dip-coating device, which comprises a dip-coating device main body, the dip-coating device main body comprises a clamp module, the clamp module comprises two vertical guide rails, the dip-coating device main body further comprises a circulating module, the circulating module comprises a circulating pump, and the circulating pump is connected with the clamp module. The circulating pump is fixedly installed on one side of the dip-coating box and used for pumping out dip-coating pigment in the dip-coating box. The head end of the circulating pipe is fixedly connected with one side of the circulating pump, and the circulating pipe is used for conveying and circularly flowing the pigment pumped out by the circulating pump; the return pipe is fixedly mounted on the other side of the dip-coating box, the bottom end of the return pipe is connected with the top end of the circulating pipe, and the clamp module drives the photoconductor drum to sink into or leave the dip-coating box through the arrangement of the clamp module and the circulating module; the circulating module enables the coating to continuously and circularly flow to prevent the coating from being static.

The invention discloses an organic photoconductor drum, which comprises a conductive substrate, and a barrier layer, a charge generation layer and a charge transmission layer which are sequentially formed on the conductive substrate, and also comprises a self-repairing protection layer formed on the charge transmission layer, the charge generation layer is a gradient charge generation layer, and the charge transmission layer is a gradient charge transmission layer. The gradient charge generation layer is composed of two or more phthalocyanine materials with different photosensitive characteristics, and wide-spectrum and efficient absorption from visible light to near infrared spectrum is achieved; according to the gradient charge transport layer, a built-in electric field is formed through gradient distribution of a hole transport material and an electron transport material, and the mobility and balance of charges are remarkably improved; the outermost self-repairing protective layer contains a microencapsulated repairing agent which can be automatically released during friction damage, surface scratches are repaired, the mechanical durability of the photoconductor drum is greatly improved, and the service life of the photoconductor drum is greatly prolonged.

This invention discloses a secondary coating device and process for an organic photoconductor drum, applied in the technical field of secondary coating devices for organic photoconductor drums. The key technical points are: a base, on which an aluminum substrate loading seat and an aluminum substrate unloading conveyor line are fixedly connected; a coating station on the base is fixedly connected to a coating tank, which contains a viscosity stratification component for controlling the viscosity of the conductive slurry in the vertical direction by stratifying and temperature-controlled slurry; and a conveying component movably connected to the base, based on a lifting conveyor component, for transporting several aluminum substrates from the aluminum substrate loading seat to the coating tank. The technical effects are: improved coating uniformity, increased precision of the organic photoconductor drum, and extended service life.

The invention relates to the technical field of additive manufacturing, in particular to a metal powder laying device based on charge control and a laying method.The metal powder laying device comprises a deposition plate, a moving table, a powder drum and a charging roller, and the moving table is located above the deposition plate; the powder drum is arranged on the moving table and comprises an outer sleeve and an inner sleeve which are coaxially arranged, the outer sleeve is rotationally arranged around the inner sleeve, the outer sleeve is covered with an organic photoconductor film, and the charging roller is used for conveying first charges to the organic photoconductor film; a first electrode plate is arranged in the inner sleeve, an empty groove is formed in the bottom of the inner sleeve, and the first electrode plate is partially located in the empty groove; the device further comprises a powder control system arranged on the moving table, the powder control system comprises a powder barrel 5 and a laser, the laser is used for forming an uncharged black writing area on the organic photoconductor film, and the powder barrel 5 is used for conveying metal powder with first charges to the black writing area. The first electrode plate is used for repelling the metal powder after being electrified, and accurate and efficient laying of the metal powder in a two-dimensional plane is achieved through charge repulsive force.

The utility model discloses an organic photoconductor drum coating base material dip-coating device which comprises a dip-coating cylinder, a base is fixed outside the dip-coating cylinder, a lifting frame is installed on the base, a lifting head is movably connected to the lifting frame through a supporting arm, a screw rod is rotatably connected to the lower portion of the lifting head, the bottom end of the screw rod is rotatably connected with a base plate, and the base plate is fixedly connected with the base plate. Three inner supporting rods are rotatably hinged to the periphery of the chassis, a threaded ring is connected to the outer thread of the threaded rod in a screwed mode, a connecting rod is hinged to the portion, corresponding to each inner supporting rod, of the threaded ring, a bevel gear ring is coaxially fixed to the end, extending out of the top of the lifting head, of the threaded rod, a bevel gear is perpendicularly connected to the periphery of the bevel gear ring in a meshed mode, and a second motor is further installed on the lifting head. The photoconductor drum is arranged to perform dip-coating processing in the dip-coating cylinder under the condition that the photoconductor drum is clamped by the lifting head, so that the dip-coated base tube is convenient to take out, the coating does not need to be dried any more, the completeness of the coating on the surface of the base tube is kept, and the dip-coating processing efficiency of the whole device is improved.

The invention discloses a high-hardness, high-flexibility and conductive optical protective coating with highly branched siloxane as a construction element and a preparation method of the optical protective coating, and belongs to the technical field of preparation of super-hard flexible conductive optical protective coatings. The preparation method comprises the following steps: preparing branched siloxane through a chemical reaction, preparing a surfactant sulfobetaine siloxane through a mild mode, obtaining a stock solution through a sol-gel method, obtaining a coating curing liquid through compounding the stock solution and a lithium salt, and finally obtaining the protective coating through coating and curing. The coating is an organic-inorganic hybrid film layer material, has good film-forming property, uniform optical property, good thermal stability, good flexibility, bending radius of 1mm, hardness of 9H at most, good wear resistance and electrical conductivity, does not generate scratches when being rubbed by steel wool under the load of about 0.15 kg, and is mild and simple in preparation process. Therefore, the coating material has practical application value in the aspect of wear-resistant protection of a flexible display screen or an organic photoconductor drum.

The invention relates to an additive of a charge generation material in an organic photoconductor and the organic photoconductor, and belongs to the technical field of organic photoconductors. Aiming at the technical problems that Y crystal form titanyl phthalocyanine serving as a charge generation material in a charge generation layer in an organic photoconductor is large in dark attenuation and low in sensitivity in a high-temperature and high-humidity environment, bottom ash of a printed product is caused, and printing is light, a fluorine-containing polyurethane-acrylate copolymer and a benzotriazole-zinc chelate are added as additives; the weather resistance of the organic photoconductor is improved, so that the organic photoconductor keeps good performance in a high-temperature and high-humidity environment; the structural formula of the fluorine-containing polyurethane-acrylate copolymer is as shown in the following formula (I); in the formula (I), Rf is a perfluorinated linear alkyl group, and the values of m, n and k are all integers.

The invention discloses a multi-layer coating process for an organic photoconductor drum. The multi-layer coating process comprises the following steps: preparing a base material, coating a barrier layer I, coating a barrier layer II, coating a generation layer and coating a transmission layer, according to the invention, a composite structure of the colorless transparent barrier layer I and the pigment-containing barrier layer I is adopted, so that the charge blocking effect is enhanced, the interlayer adhesive force is improved, and the coating uniformity and performance optimization are realized by optimizing the coating speed, viscosity and drying conditions of each layer; and the conventional turning drum base is adopted to replace an expensive oxidation drum base, and the point-out problem is solved through the functional coating design, so that the production cost is greatly reduced.

The invention discloses an organic photoconductor drum plain tube ultrasonic cleaning device and process which are applied to the technical field of organic photoconductor drum ultrasonic cleaning devices, and the technical scheme is characterized in that the organic photoconductor drum plain tube ultrasonic cleaning device comprises a base, an input assembly and an output assembly, and the input assembly and the output assembly are symmetrically and fixedly arranged at the two ends of the base in the aluminum plain tube conveying direction respectively; the base is movably connected with a carrying assembly used for carrying a plurality of aluminum tubes on the basis of the conveying lifting assembly, and the base is sequentially provided with an ultrasonic pre-washing assembly, an ultrasonic main washing assembly, a multi-gradient countercurrent rinsing assembly and a drying assembly in the conveying direction of the aluminum tubes. The base is further provided with a sealing cover used for integrally sealing the cleaning device. The sealing cover is provided with an atmosphere replacement assembly used for replacing air in the sealing cover with pure nitrogen in the cleaning process. The cleaning device has the technical effects that the cleaning cost is reduced while the cleaning effect is improved.

The invention discloses a long-life organic photoconductor drum core which comprises a photoconductor drum and rotating ends installed at the two ends of the photoconductor drum, the outer walls of the rotating ends are sleeved with large bearings, bearing rings are fixed to the outer rings of the large bearings, small bearings are installed on the opposite faces of the bearing rings in an embedded mode, and T-shaped tables are fixed to the inner rings of the small bearings. A protective cover is fixed between the two T-shaped tables; the protective cover is an arc-shaped hollowed-out frame, and a plurality of round rollers are installed at the hollowed-out position of the arc-shaped hollowed-out frame at equal intervals. The outside of the photoconductor drum is provided with a protection structure which can not be detached, the photoconductor drum can be protected all the time, the photoconductor drum cannot be touched when the photoconductor drum is installed and replaced, and the protection structure does not affect cooperation work of the photoconductor drum and other drums.

The invention belongs to the field of organic photoconductor drums, and particularly relates to a priming coat for improving breakdown resistance of a photoconductor drum. The adhesive comprises the following components in parts by weight: 1-5 parts of a catalyst, 3-10 parts of a dispersing agent, 5-15 parts of a coupling agent, 50-100 parts of a cross-linking agent, 250-300 parts of resin, 300-600 parts of oxide and 600-1000 parts of an organic solvent. The dielectric strength of the bottom coating of the photosensitive drum is improved, and the prepared photosensitive drum has good breakdown resistance under the conditions of normal temperature, normal humidity and low temperature and low humidity.