7results about How to "Improve printing yield" patented technology

The invention discloses an LCD photocuring 3D printer and a method for improving the resolution of the LCD photocuring 3D printer, the angle of light passing through a pixel opening area of an LCD screen is changed by adjusting the angle of a reflector group, the position of a curing light beam in a printing area (photocuring glue) is further influenced, so that the offset of a pixel image is realized, and when the offset is carried out for n times, the position of the curing light beam in the printing area (photocuring glue) is changed. Compared with the prior art, n times of pixel points are added on the basis of an original image, namely, the resolution ratio of the LCD is expanded in a multiplied mode, the effect of improving the resolution ratio of the LCD photocuring 3D printer in a multiplied mode is achieved, meanwhile, the sufficiency and compactness of an exposure area are improved, and the printing yield is improved.

The utility model relates to a back contact battery. The back contact cell includes: a silicon substrate; the first region and the second region are alternately arranged on the back surface of the silicon substrate; the first region comprises a first tunneling oxide layer, a first doped polycrystalline silicon layer, a back passivation layer and a first metal electrode; the second region comprises a second tunneling oxide layer, a second doped polycrystalline silicon layer, a back passivation layer and a second metal electrode; the isolation region is located between the first region and the second region; a first identification point and a second identification point are arranged on the back face of the silicon substrate, the second identification point wraps the first identification point or the first identification point wraps the second identification point, and the height difference D between the first identification point and the second identification point is larger than 0 and smaller than or equal to 3 micrometers. By arranging the first identification point and the second identification point with the height difference, effective and accurate identification is facilitated, a guarantee is provided for the printing precision of subsequent overprinting, and the yield of solar cells can be improved.

The utility model provides a kind of electric wire surface printing mechanism with ink-absorbing font, it is related to printing mechanism technical field, including installation base and printing mechanism ontology, further including supporting piece, set up in the inside of installation base, cleaning box is fixedly set in the side of installation base, clamping piece is set up in the top end outside of cleaning box, clamping plate is set up in the top end outside of cleaning box, can according to the thickness of electric wire, pulling strength and other factors, dynamically adjust supporting degree, prevent electric wire stretch too tight, avoid electric wire and appear deformation, breakage etc. due to excessive stress, guarantee the integrity and stability of electric wire in printing process, effectively improve printing yield.

The utility model discloses a conveying device of high-speed printing equipment, which is characterized in that a plurality of air holes I are uniformly distributed on the surface of a guide belt with holes, and an air suction flat plate is arranged inside the guide belt with the holes; air exhaust holes are formed in at least one side of the air suction flat plate; a plurality of negative pressure fans are continuously arranged in the air suction flat plate in the conveying direction; a plurality of airflow grooves are uniformly distributed in the top surface of the air suction flat plate, the airflow grooves are concave downwards relative to the top surface of the air suction flat plate, and a plurality of second air holes are uniformly distributed in each airflow groove; the guide belt driving mechanism is connected to the perforated guide belt and drives the perforated guide belt to rotate. Under the combined action of the guide belt with the holes, the air suction flat plate and the negative pressure fan, cards can be tightly adsorbed on the surface of the guide belt with the holes in the conveying process, so that the cards can stably and quickly pass through the printing assembly, the problems of shaking, displacement and the like of the cards during high-speed printing are solved, the printing yield of the cards is improved, and the printing quality of the cards is improved. And the printing efficiency is further improved.

The invention discloses water-based ink with high shielding property. The water-based ink is prepared from the following raw materials in parts by weight: 35-37 parts of diisocyanate, 41-43 parts of polyol, 6-7 parts of a micromolecular chain extender, 5-6 parts of a hydrophilic chain extender, 4-5 parts of modified micron talcum powder and 5-6 parts of modified hyperbranched polyester, wherein the modified hyperbranched polyester comprises a core and modified nano talcum powder coated on the surface of the core, and the core is carboxyl-terminated hyperbranched polyester. The invention also discloses a preparation method of the high-shielding water-based ink. The printing ink has good shielding performance, fluidity and mechanical performance, the good shielding performance can be obtained through one-time printing, a film layer is more uniform, a product can be lighter and thinner due to the fact that the thickness of a coating is reduced, and the technology for printing the printing ink on the mobile phone glass cover plate is greatly simplified.

The present invention discloses a pneumatically driven micro-gripper, comprising: a base; an airbag mechanism, the airbag mechanism is arranged on the base and is connected with the base, the airbag mechanism comprises at least one airbag; a clamping mechanism, the clamping mechanism comprises two clamping arms relatively arranged on the base, the airbag mechanism is located between the two clamping arms, the two clamping arms are respectively connected to the two opposite outer side walls of the airbag mechanism, and when the airbag mechanism is inflated or deflated, the airbag mechanism drives the two clamping arms to open or close. The pneumatically driven micro-gripper of the present invention utilizes high-precision micro-nano 3D printing technology, and adopts pneumatic expansion of the airbag to drive the clamping arms connected to both sides of the airbag to open, and has the advantages of simple, compact and miniaturized structure, large output force, high power density, large opening and closing amount, and the opening and closing amount resolution can reach sub-micron; it adopts pneumatic drive, has good applicability to biological environments and can be used in liquid environments, realizing fine operation of biological microstructures.

The invention provides a manufacturing method of monofilament printing screen cloth. The manufacturing method comprises the following steps: stretching a plurality of yarns and arranging the yarns; enabling the arranged yarn to pass through a reed so as to carry out first-stage spacing adjustment; enabling the equal-line yarns passing through the reed to pass through a reed jig so as to carry out second-stage spacing adjustment; the yarn passing through the reed jig and a high polymer material film layer are pressed to form the monofilament printing screen cloth, and the yarn extends in the same direction and is parallel to one another. In addition, the invention also provides a monofilament printing screen and a monofilament printing composite screen.