5results about How to "Good grounding" patented technology

The utility model discloses a rotary pay-off rack for cable processing, and relates to the technical field of cable processing, the rotary pay-off rack comprises a pay-off roller and adjusting columns, the left end and the right end of the pay-off roller are both provided with the adjusting columns, the tops of the adjusting columns are provided with a supporting frame, and the top of the supporting frame is provided with a servo motor; the middle of the adjusting column is connected with stable inclined columns in a front-back symmetry mode. According to the rotary pay-off rack for cable processing, the adjusting columns are symmetrically arranged and connected to the left end and the right end of the pay-off roller, and by means of the structural arrangement of the adjusting columns, on one hand, stable structural support can be provided for the pay-off roller, and on the other hand, the pay-off roller can be subjected to up-and-down lifting adjustment within a certain range in the vertical direction according to the diameter of a cable roll; and due to the structural arrangement of the stable inclined columns, good front-back structural support can be provided for the two sets of adjusting columns according to needs, so that the use and operation stability of the whole device is ensured.

The utility model relates to the technical field of cement manufacturing, and provides a powder concentrator of a roller press of a cement grinding mill. The inner grinding cylinder is arranged in the shell, and a fine powder outlet is formed in one end of the inner grinding cylinder; the two cement particle inlets are formed in the surfaces of the symmetrical positions of the inner grinding cylinder, and limiting grooves are formed in the symmetrical positions of the inner wall of the inner grinding cylinder; and the hydraulic cylinder is fixedly arranged on the inner wall of the inner grinding cylinder. According to the cement raw material grinding device, materials are put into the inner grinding cylinder through the raw material putting pipe, the driving motor is started to work, the grinding roller is driven to rotate and is matched with the grinding part on the inner wall to grind the cement raw materials, and when the ground granularity cannot meet the requirement, the hydraulic cylinder is started to work, the output end mounting frame is driven to move along the limiting groove, and the cement raw materials are ground. And a driving motor on the surface of the mounting frame is driven to move upwards to be better attached to the grinding part, finer grinding is completed, and therefore the applicability of the device is improved.

The present application relates to raw material crushing technical field, and discloses a kind of raw material crushing equipment for poultry feather production amino acid, comprising: pretreatment cylinder, the top of the pretreatment cylinder is communicated with feed frame, the top of the feed frame is rotatably connected with cover plate by rotating pin, the bottom of the pretreatment cylinder is communicated with discharge nozzle, the outside of the discharge nozzle is fixedly connected with support plate, the bottom of the support plate is fixedly connected with base;Crushing cylinder, the bottom of the crushing cylinder is located in the central position and is provided with discharge port;Crushing device, for grading crushing treatment to raw material;Stirring device, the stirring device is used to stir the raw material in the crushing cylinder;Discharge device, the crushed raw material is screened and discharged by discharge device.The raw material crushing equipment for poultry feather production amino acid processes feather using the processing mode of combining pre-crushing and fine crushing, and the pre-crushed feather is finely ground and cut.

The utility model discloses a differential amplification circuit, a power amplifier and electronic equipment, relates to the field of electronic circuits, and solves the problem of low linearity of a differential amplifier adopting a current multiplexing structure. Input power supply voltage is fed into the first-stage amplification circuit through the input transformer, current is multiplexed to the second-stage amplification circuit, the first-stage amplification circuit is in alternating current grounding through the bypass capacitor, the second-stage amplification circuit is directly grounded, and after an input signal is amplified by the first-stage amplification circuit, the second-stage amplification circuit is directly grounded. According to the differential amplifier, the alternating current signal grounding is more ideal, the voltage swing on a transistor in the cascode amplification circuit is higher, the linearity of the amplifier can be remarkably improved, the cascade linearity is ensured, and the problem that the linearity is deteriorated due to a traditional current multiplexing structure of the differential amplifier is solved.

The utility model relates to advanced manufacturing and automation technical field, and disclose a kind of additive manufacturing 3D printing ink-jet resin's production device, including collection tank, the top of the collection tank is fixedly installed with feed pipe;Grinding assembly, the grinding assembly is set at the left side of collection tank;Wherein, the grinding assembly includes grinding site, adjusting site.The utility model is by setting grinding assembly, and after pigment, resin and solvent are fully stirred evenly, mixed raw material is added to the inside of machine body by feed inlet, motor is started, grinding roller rotates, raw material is grinded in grinding cavity, it can be ensured that raw material can be mixed evenly, can be started by cylinder, mounting frame moves up and down, the motor of top, grinding roller elevating, the distance between grinding roller and grinding cavity inner wall changes, when grinding roller rises, raw material can be grinded more finely, reaches the effect that avoid appearing particle too large or uneven distribution phenomenon.