3results about How to "No spots" patented technology

The invention relates to the technical field of printers, and particularly discloses a printer core and a printer.The printer core comprises a rack, a swing arm, a first gear, a second gear and a third gear, the swing arm, the first gear, the second gear and the third gear are rotationally arranged on the rack, and the first gear is tightly matched with the swing arm to drive the swing arm to be switched between a first state and a second state; the second gear is meshed with the first gear, a one-way clutch structure is arranged between the second gear and the third gear and enables the second gear to drive the third gear to synchronously rotate in the first direction, in the first state, the swing arm is separated from the third gear, and in the second state, the swing arm is driven by the third gear to rotate synchronously. The swing arm abuts against the third gear to limit rotation of the third gear. When the scheme is applied to the printer, the first gear can be connected with the paper roller rotating shaft, and the third gear can be connected with the thermal transfer ribbon roller rotating shaft, so that the used thermal transfer ribbon cannot pass through the printing head again along with paper returning, and the printing effect is ensured.

The utility model relates to line lamp technical field especially line lamp without particle luminous, its technical scheme includes the lamp body, the inside fixed mounting of lamp body has LED integrated circuit board, the inside fixed mounting of lamp body has optical acrylic diffusion plate, LED integrated circuit board sets up optical acrylic diffusion plate's below, the inside fixed mounting of lamp body has optical acrylic stick, the bottom fixed mounting of lamp body has the integrated junction box of outgoing line, the integrated junction box of outgoing line is fixedly installed with cable female head and cable male head. The utility model discloses through optical acrylic diffusion plate and optical acrylic stick, make lamp luminous even, reach the light -emitting effect of no particle, no spot, when two adjacent lamps are connected as a whole, can transmit current through the integrated junction box of outgoing line, compared with traditional internal circuit board of lamp conveying current, can reduce the heat output of circuit board, effectively improved the service life of LED line lamp.

A method for preparing a coarse-grained ring-free 6061 aluminum alloy rod belongs to the technical field of aluminum alloy processing and manufacturing. It solves the problem of coarse-grained ring in the production of existing 6061 aluminum alloy rods, which causes uneven mechanical properties, poor fatigue resistance and anodic oxidation appearance defects. The method comprises the following steps: precise alloy component adjustment, low-temperature casting of round ingots, homogenization annealing, temperature-controlled low-speed hot extrusion forming with a round arc working belt mold, high-temperature online quenching, tensile straightening and low-temperature artificial aging. The present application effectively inhibits the abnormal recrystallization and growth of surface grains during the extrusion process, completely eliminates the coarse-grained ring defects of the rod section, and the obtained product has uniform and fine grain structure, stable and excellent mechanical properties, the tensile strength is not less than 310 MPa, the yield strength is not less than 270 MPa, and the elongation after fracture is not less than 12%. The product is suitable for automobile structural parts, rail transit accessories, high-end mechanical equipment and other material scenes, the process is suitable for industrialized batch production, and the production stability is strong and the application range is wide.