4results about How to "High split efficiency" patented technology

A fixing structure of a glue applying pipe gun, comprising a conical column or a horn-shaped hole with a smaller upper wall and a larger lower wall on the outer wall of the glue inlet end of the pipe gun body, a variable diameter section on the pipe body of the pipe gun, a U-shaped notch on the plate edge of a horizontally placed supporting plate, and a sliding displacement along the direction of the U-shaped notch and a length direction limiting cooperation of the pipe gun body between the U-shaped notch and the variable diameter section of the pipe gun body, and a lifting mechanism connected to the supporting plate, which is beneficial to the quick replacement of the glue applying pipe gun, the reliable fixing of the glue applying pipe gun, and the docking and separation of the glue applying pipe gun and the glue pipe connecting seat.

The application discloses a kind of for semi-finished circuit board dividing board dividing board device and method, the present application relates to the technical field of semi-finished circuit board dividing board, the table top of workbench is provided with two for positioning and fixedly attaching semi-finished circuit board positioning and fixed assembly, positioning and fixed assembly in left side includes fixedly attached on the upright of workbench table top, it is hinged to the top end portion of upright first pin shaft rotating plate, rotating plate bottom surface left end portion is hinged to one connecting rod on second pin shaft, connecting rod is located in the left side of upright, and the top surface of rotating plate is fixedly attached with one strip positioning table and one vacuum chuck B;The spacer plate is provided with for pulling down two positioning and fixed assembly connecting rod pulling-down assembly.The beneficial effects of the present application are: greatly improve the efficiency of semi-finished circuit board dividing board, and no powdery waste in dividing board process.

The application provides a resolution method of clemastine fumarate intermediate, comprising the following steps: 1) reacting racemic N-methyl-2-(2-chloroethyl)pyrrolidine with a chiral resolving agent in a first organic solvent to obtain a diastereomeric salt solution; 2) purifying the material after the reaction in step 1) by cooling and crystallization, and filtering to obtain R-N-methyl-2-(2-chloroethyl)pyrrolidine resolving agent salt; 3) dissolving the R-N-methyl-2-(2-chloroethyl)pyrrolidine resolving agent salt obtained in step 2) in a second organic solvent-water two-phase system, adjusting the pH value to 9-13, then separating the organic phase, and concentrating to obtain R-N-methyl-2-(2-chloroethyl)pyrrolidine; wherein the chiral resolving agent is at least one selected from L-di(3,5-dinitrobenzoyl) tartaric acid and L-di-p-chlorobenzoyl tartaric acid. By using a specific chiral resolving agent, the resolution efficiency of racemic N-methyl-2-(2-chloroethyl)pyrrolidine is significantly improved, and combined with cooling and crystallization and two-phase acid adjustment replacement, the operation is simple, and the cost is controllable.

The utility model relates to a kind of natural gas field unmanned mobile inspection equipment, including track, assembly component is arranged on track, assembly component includes connecting groove, connecting block and back push box, connecting block is inserted in the inside of connecting groove, the inside sliding connection of connecting block has moving plate, and the outer wall of moving plate side is integrally connected with plug block, the inside of connecting groove is provided with insertion slot, and plug block and insertion slot are compatible, the inner wall of connecting block is provided with guide rod, and moving plate sliding sleeve is connected in the outside of guide rod, the inner wall of connecting block is provided with spring one connected with moving plate.The utility model connecting block is inserted in the inside of connecting groove, the elastic force of spring one itself can promote moving plate and plug block to move, make plug block insert insertion slot, two auxiliary guidance connection assembly can be controlled, without using multiple screws, whether it is to track assembly or split, operation step is more convenient, can improve the assembly and split efficiency of track.