4results about How to "Accurate positioning accuracy" patented technology

The application discloses a method for manufacturing a mask, comprising the following steps: exposing a material belt to obtain a first belt segment with a plurality of first patterns, wherein the material belt comprises a belt-shaped foil and a photoresist layer formed on the surface of the belt-shaped foil, there is a spacing area between two adjacent first patterns, and the first pattern comprises a plurality of mother mark patterns and a plurality of pixel hole patterns; and exposing a plurality of spacing areas in sequence by a processor controlling a laser to set a path, to obtain a second belt segment with a plurality of second patterns, wherein the set path matches a set pattern in the processor, the second pattern comprises a plurality of sub-mark patterns corresponding to the plurality of mother mark patterns, and an auxiliary pattern corresponding to the spacing area. The application further discloses an exposure system.

This invention provides a modular scaffold for cast-in-place box girders used in bridge construction, relating to the field of bridge construction scaffolding technology. It includes support members arranged in a row, with the first and last members of the row sequentially connected. The support members in the row have identical structures. A box girder support is installed on the upper support member. A fixing chuck is installed on the support member. A reinforcing connecting rod is installed on the fixing chuck. The reinforcing connecting rod is used to connect adjacent support members. A safety stop is installed on the support member. The safety stop ensures that during disassembly, workers can sequentially disassemble the top support bolts first, then the lower connecting rods, and finally the uppermost support rod, thus standardizing the disassembly sequence. This addresses the problem that current modular scaffolds for cast-in-place box girders used in bridge construction do not facilitate standardized disassembly procedures and increase the risk of support rod deformation.

The utility model discloses an adjustable mold positioning inserting rod clamp, and belongs to the technical field of clamp equipment. The adjustable mold positioning inserting rod clamp comprises an I-shaped groove supporting plate, a positioning inserting rod and a positioning inserting rod, the adjustable mold positioning inserting rod clamp comprises an I-shaped groove supporting plate and a plurality of sets of positioning inserting rod clamping mechanisms, each positioning inserting rod clamping mechanism comprises a square sliding frame, two fastening plates, two fastening threaded rods, a clamping control box, a transmission threaded rod, a transmission block and two inner arc half clamping blocks, and the square sliding frames are arranged on the I-shaped groove supporting plate in a sliding and sleeving mode. The positioning inserting rods are fixed by the two inner arc half clamping blocks in each positioning inserting rod clamping mechanism, subsequent mounting of the positioning inserting rods is facilitated, the positions of the positioning inserting rod clamping mechanisms can be adjusted at will according to actual requirements, the mounting requirements of the positioning inserting rods on different molds are met, and compared with a fixed support, the flexibility is higher, meanwhile, alignment is conducted firstly, then locking is conducted, and the mounting efficiency is improved. And the operation is convenient, and meanwhile, the positioning accuracy of the positioning insertion rod during installation is high.

This invention discloses a frameless coil winding device, comprising: a body, a sleeve assembly, a coating assembly, a wire cutting assembly, a winding fixture, a paper pressing assembly, a paper feeding assembly, a tape conveying assembly, and a wire clamping and wrapping assembly. The wire can be conveyed to the winding fixture via the wire clamping and wrapping assembly. When the wire approaches the winding fixture, the wire clamping and wrapping assembly can wrap the end of the wire around the surface of the annular base paper to complete the coil starting action. After the coil is wound, it can be removed from the winding fixture. This invention not only achieves continuous wire conveying and continuous automatic coating with better coating continuity and automatic completion of the wrapping and starting action, but also ensures more accurate positioning of the paper tape during winding, avoids paper tape deviation, and ensures a more even paper roll, resulting in higher overall efficiency and automation, high coil winding efficiency, and improved quality.