7results about How to "Improve grading effect" patented technology

The application discloses a kind of for the method, device, equipment and medium of tab abnormality detection in battery cell production process, comprising: the tab area image collected in battery cell production process is segmented to generate tab mask;Based on the tab mask extraction multi-scale pixel-level feature vector, and the multi-scale pixel-level feature vector is input into unsupervised probability GMM model to identify pixel-level abnormal point;The pixel-level abnormal point is analyzed to obtain candidate abnormal area, and the parameter index of the candidate abnormal area is obtained;Determine whether the parameter index meets the set tab abnormality judgment rule, if meet, it is judged as tab abnormality, and tab abnormality result is output.Therefore, the application can be widely applied to the detection of tab folding, crease, fracture, misplacement and other abnormalities on battery cell production line.

The utility model relates to a bearing protection device of mechanical grading mill, including frame, two main motors are installed to both sides of frame, the output of two main motors installs grading wheel drive, grinding disc drive respectively, grinding disc drive and grading wheel drive connect hollow shaft and solid axle through V type belt respectively, solid axle is placed in hollow axle hole, grinding disc is installed on hollow axle, and is inside the cavity of grinding cavity, grading wheel is installed on solid axle, and is above grinding disc inside the cavity, the upper and lower end of hollow axle is provided with big bearing respectively, and is supported by big bearing, the upper and lower end of solid axle is provided with small bearing respectively, and is supported by small bearing, the outer ring of grinding disc is provided with toothed grinding ring, the cavity of grinding cavity is provided with air guide ring below, and air guide ring is below toothed grinding ring, compared with prior art, the utility model can improve the service life of bearing, reduce the wear and tear and failure risk of bearing, and further improve the effect of equipment grinding and grading.

The application discloses a transformer fault prediction method and system, and relates to the technical field of power equipment.The method comprises the following steps: collecting the start-stop action times of each time window, and determining the temperature control response lag coefficient of each time window by analyzing the temperature control lag level of the cooling control system in the power transformer when the cooling control system faces power mutation; analyzing the non-steady-state operation degree of the cooling control system in the corresponding time window to determine whether the temperature control state of the cooling control system affects the normal operation of the power transformer, and issuing a transformer fault prediction instruction; combining the power consumption drift and voltage frequency spectrum disturbance of the power transformer in each time window, analyzing the non-normal operation degree of the power transformer in the corresponding time window, performing digital model analysis on the non-normal operation index of the power transformer in each time window, generating a corresponding grade fault prediction signal, and performing corresponding voice broadcast reminding.

The application relates to a powder screening and collecting device in the field of powder manufacturing, which comprises the following: a ring-shaped frame; a mesh plate assembled in the ring-shaped frame, the mesh plate separating the ring-shaped frame into a first chamber and a second chamber; a material collecting bin assembled in the ring-shaped frame and located in the second chamber, a powder discharging port being formed on the side of the material collecting bin away from the mesh plate; a coarse particle discharging port arranged on the ring-shaped frame; and mirror surface treatment being performed on at least the surface of the mesh plate facing the first chamber, the surface of the material collecting bin facing the mesh plate and the inner side of the ring-shaped frame. The powder screening and collecting device can realize accurate screening of metal powder and coarse particles, reduce the abrasion of spherical metal powder, maintain the smoothness of the surface of the spherical metal powder and improve the use performance of the metal powder.

The application relates to the technical field of data processing, and discloses a vacuum pumping operation timing checking method, which is used for solving the problems of inaccurate timing judgment, untimely abnormality identification and insufficient operation record traceability in traditional methods, and affecting the standardization and safety of vacuum pumping operation. The method first collects vacuum degree, temperature, flow, valve state and operation declaration information, and carries out unified time base alignment; determines an operation session and extracts a process node according to the aligned multi-source data, combines a process procedure to establish a checking rule, corrects start and end nodes of each process, and constructs an operation timing chain; then, the process duration, process sequence and process interval are checked, and interlocking control, alarm output and record archiving are executed according to the checking conclusion, so that the accuracy of vacuum pumping operation timing judgment, the timeliness of abnormality disposal and the process traceability are improved.

This invention discloses a flexible airflow fruit grading device, comprising: a support frame fixedly mounted on the ground, with a first support plate fixedly mounted at one end and a second support plate fixedly mounted at the other end; a fruit collecting mechanism fixedly mounted on the first support plate, the fruit collecting mechanism having a fruit outlet; a fruit transport pipe with its inlet fixedly mounted on the fruit outlet, the fruit transport pipe including a large fruit outlet, a small fruit outlet and an exhaust port; a controllable air source fixedly mounted horizontally on the ground, the controllable air source being connected to the exhaust port of the fruit transport pipe for extracting gas from the fruit transport pipe, adjusting the negative pressure of the gas inside the fruit transport pipe, thereby minimizing collisions of the fruits during transport; and a fruit grading collection box, the inlet of which is fixedly connected to the large fruit outlet and the small fruit outlet.

The utility model relates to the technical field of graded storage of fine iron powder, and provides graded storage equipment for fine iron powder, which comprises a storage tank, a plurality of graded sieve plates, a mounting seat, a stirring shaft, a stirring component, a screw rod and a scraping mechanism, a plurality of graded sieve plates are vertically arranged in the storage tank, and the upper side of the storage tank is communicated with a feeding hopper through a feeding pipeline; the storage tank is rotatably mounted on the upper side of the mounting seat, a bottom support is mounted on the lower side of the mounting seat, a driving part for driving the storage tank to rotate is arranged on the mounting seat, the stirring shaft is rotatably mounted on the inner top wall of the storage tank, a driving part for driving the stirring shaft to rotate is arranged on the upper side of the storage tank, and a plurality of groups of stirring assemblies are vertically mounted on the stirring shaft. By means of the technical scheme, the problems that in the prior art, fine iron powder with different particle densities and sizes is screened in a gravity settling mode, so that the separation speed of the fine iron powder is low, and the working efficiency is poor are solved.