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73results about How to "Good insertion effect" patented technology

Supported vanadium-chromium double-center composite catalyst as well as preparation method and application thereof

The invention belongs to the field of catalysts and discloses a supported vanadium-chromium double-center composite catalyst as well as a preparation method and application thereof. The double-centercomposite catalyst comprises a porous inorganic supporter, a catalyst modification component, a vanadium-containing active component and a chromium-containing active component. On the basis of a supported vanadium-chromium double-center vinyl polymerization catalyst, the catalyst modification component is introduced, the catalyst is applied to homopolymerization of ethylene and copolymerization catalysis of ethylene / alpha-olefin, and compared with a double-center ethylene polymerization catalyst without the catalyst modification component, the catalyst has high and stable activity and excellent comonomer intercalation performance and hydrogen regulation response, and tests show that in the presence of the catalyst modification component, two metal centers have remarkable synergetic effects. An organic metallic promoter is also introduced into the double-center composite catalyst to implement pretreatment activation on the double-center composite catalyst, and the activity of the catalyst after pretreatment activation is also remarkably better than that of a catalyst without pretreatment activation.
Owner:SOUTH CHINA AGRI UNIV

Multi-station high-flux pipetting equipment

ActiveCN112808340AGood insertion effectHigh pipetting efficiencyBurettes/pipettesPull forceHigh flux
The invention discloses multi-station high-flux pipetting equipment. According to the invention, three stations are arranged on a base in a Y-axis direction; the first station comprises a first pipetting suction head containing box; the second station comprises a first liquid sample box; the third station comprises a test tube containing box; when a pipetting suction head and a pipetting sleeve handle are assembled, an inserting mechanism drives a pipetting mechanism to descend, and when the pipetting suction heads and the pipetting sleeve handles are assembled, the inserting mechanism drives a pipetting mechanism to descend; and after the sleeve handle of a pipetting assembly is inserted into the inner hole of the pipetting suction head, the inserting mechanism grabs the box body of the suction head containing box and further applies pressure to the pipetting mechanism, so the pipetting sleeve handle at the lower part of the pipetting assembly is pressed into the inner hole of the pipetting suction head. The downward press-fitting force of the pipetting assembly is balanced by pull force applied to the suction head containing box by the inserting mechanism, and the pull force is not transmitted to a bearing mechanism of the pipetting equipment to deform the bearing mechanism, so the insertion effect of the sleeve handle and the suction head is good; and since the three stations are arranged in the Y-axis direction, manual box replacement is not needed in a pipetting process, and pipetting efficiency is high.
Owner:GUANGXI TECHCAL COLLEGE OF MACHINERY & ELECTRICITY

Data inserting method and device

The invention discloses a data inserting method and device, and belongs to the technical field of information. The method comprises the steps that an entity class which comprises a proof test value and is built according to data table metadata corresponding to at least one data table is obtained, and data to be inserted are inserted into the data table according to the entity class corresponding to the data table when the data to be inserted are successfully verified according to the proof test value in the entity class corresponding to the determined data table. According to the data inserting method and device, due to the facts that the entity class which comprises the proof test value and is built according to the data table metadata corresponding to the data table is obtained, and the data to be inserted are inserted into the data table according to the entity class corresponding to the data table when the data to be inserted are successfully verified according to the proof test value in the entity class corresponding to the data table of the data to be inserted, the data are automatically inserted. In addition, due to the fact that the entity class comprises the proof test value, the data can be verified before the data are inserted into the data table, data insertion efficiency is improved, and the data insertion effect is optimized.
Owner:GUANGZHOU HUADUO NETWORK TECH

Terminal pin insertion mechanism of double-framework coil

The invention relates to a terminal pin insertion mechanism of a double-framework coil. A rack is provided with a conveying device, the conveying device is provided with a carrier, two position-clamping columns are arranged on the carrier side by side, the rack is sequentially provided with a pin insertion device matched with the carrier, a terminal pin leveling device, a detecting device and a framework clamping manipulator, the pin insertion device comprises a pin insertion base arranged on the rack, the pin insertion base is provided with two terminal pin conveying grooves, the tail ends of the terminal pin conveying grooves are provided with terminal pin material receiving devices, the terminal pin material receiving devices are matched with the upper and lower frameworks of the carrier through terminal pin material jacking devices, the pin insertion base is provided with a pin-insertion material pressing air cylinder, and the lower portion of the pin-insertion material pressing air cylinder is connected with pin-insertion material pressing block matched with a product on the carrier. According to the terminal pin insertion mechanism of the double-framework coil, through the cooperation between the carrier with the two position-clamping columns and the conveying device, the two frameworks are synchronously conveyed; through the cooperation of the pin insertion device with the two terminal pin conveying grooves, the synchronous pin insertion of the upper and lower frameworks can be achieved, the pin insertion efficiency is improved, and the good insertion effect can be achieved.
Owner:DONGGUAN RONGGONG AUTOMATION TECH CO LTD
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