7results about How to "Accurate Uniformity" patented technology

The application discloses an intelligent weighing control system of a powder automatic packaging machine, relates to the technical field of weighing control, and solves the technical problem that material accumulation imbalance cannot be avoided, causing a great detection error of material weight; the system comprises a weighing data acquisition module, a discharging image acquisition module, a powder accumulation analysis module, a discharging efficiency analysis module, a discharging adjustment module and a data correction module; real-time video data of powder in the discharging process is acquired, and the top end accumulation image of powder material discharged into a material frame is acquired; the powder accumulation analysis module analyzes the distribution and accumulation of powder according to the top end accumulation image of powder material, and judges the uniformity of powder discharging; image data of powder accumulation is acquired in real time, the powder distribution in the discharging process is fed back in time, the discharging port position can be adjusted in time according to the analysis of the distribution and accumulation of powder, accumulation of material on one side of the material frame is avoided, and the detection accuracy is improved.

The present invention relates to the field of fuel cell heat dissipation technology, and specifically to an air-cooled heat dissipation device for hydrogen fuel cells, including a fixed bracket, an adaptive air supply device, a dust-proof circulation track, a uniform flow rack and a dust cover, wherein the fixed bracket is used to limit and fix multiple hydrogen fuel cell stacks, and both ends of the fixed bracket are equipped with circulation joints, the dust-proof circulation track is installed inside multiple hydrogen fuel cell stacks, the inner wall of the dust-proof circulation track is provided with a plurality of output ends, the dust-proof circulation track is used to filter the incoming air, the uniform flow rack and the adaptive air supply device are both installed inside the dust-proof circulation track, the adaptive air supply device is used to convey airflow into the dust-proof circulation track, the uniform flow rack is used to guide the incoming airflow to the inner wall of the dust-proof circulation track to evenly diffuse and flow, and the dust cover is sleeved on the outer side of multiple hydrogen fuel cell stacks to shield dust. The present invention can effectively improve the heat dissipation uniformity and adaptability, and at the same time prolong the service life of the hydrogen fuel cell.

The invention discloses vacuum coating equipment, a conductive film preparation method, a conductive film and a pole piece, the vacuum coating equipment comprises an equipment body, an evaporation component and a magnetron sputtering component, a vacuum cabin is arranged in the equipment body, and the vacuum cabin comprises a first cabin and a second cabin which are arranged in a separated mode; a membrane penetrating gap is formed in the side wall between the first cabin and the second cabin and is communicated with the first cabin and the second cabin; the evaporation component is mounted in the first cabin and is at least used for plating metal main body layers on the two opposite surfaces of the conductive film; and the magnetron sputtering assembly is mounted in the second cabin and is used for plating an isolating layer on the surface of the metal main body layer on one surface of the conductive film. The invention solves the problems of low plating efficiency and influence on the film forming quality of a copper film on a conductive film when the conductive film with an anti-sticking function is plated by adopting the existing film plating equipment.

The invention relates to a dynamic thin film soldering flux printing method and device, and the method comprises the steps: 1, taking out a thin film, tensioning the thin film, and covering a steel mesh with the thin film; 2, air pressure is applied to the thin film, so that the thin film protrudes out of meshes of the steel mesh; 3, dipping the protruding part of the thin film into the scaling powder; and 4, pressing the thin film on the substrate, and coating the soldering flux on a welding pad of the substrate. The invention discloses a dynamic thin film soldering flux printing method and device. The printing device specifically comprises a thin film, a tensioning mechanism, a steel mesh, an air pressurizing device and a printing lifting device. The method has the advantages that a flexible and efficient scaling powder coating solution is provided, the protruding degree of the thin film is controlled through air pressurization, and the method is suitable for substrates of different sizes and shapes by means of dynamic deformation of the thin film; and accurate coating thickness and uniformity of the soldering flux are realized.

The utility model relates to the technical field of pulverized coal processing, and particularly discloses an intelligent pre-stirring system which comprises a box body, the bottom of the box body is arranged to be a cylindrical shell of a semicircular structure, and a cover is installed on the surface of the box body; a stirring structure is arranged in the box body, and the stirring structure is characterized in that a motor is mounted on the inner surface of a cover, a pipeline is mounted in the surface of the cover in an embedded manner, a rotating shaft is mounted in the box body, and the rotating shaft penetrates through the cover and is connected with an output shaft of the motor. According to the intelligent pre-stirring system, the stirring structure is arranged, the motor can rotate by being tightly attached to the inner wall of the box body in the stirring process through the scraping plate connected with the surface of the rotating shaft, adhered pulverized coal is scraped away, the tail end of the pipeline corresponds to the position of the annular bearing groove, and an additive enters the guide groove through the pipeline and the bearing groove and is evenly dispersed into the box body through holes of the guide groove; accurate guiding and uniform adding of the additive are achieved, and stirring uniformity and accuracy are guaranteed.

The utility model relates to the technical field of waterproof coiled material testing, and provides a device for measuring the thickness of the lower surface of an SBS (Styrene Butadiene Styrene) asphalt waterproof coiled material, which comprises a base main body, a three-dimensional moving mechanism, a constant-temperature heating scraper knife mechanism and a detection and identification module, the coiled material placing area is used for placing an SBS modified asphalt waterproof coiled material to be measured; the constant-temperature heating scraper knife mechanism is mounted on the three-dimensional moving mechanism, and the constant-temperature heating scraper knife mechanism is driven by the three-dimensional moving mechanism to move in the X, Y and Z three-dimensional directions so as to remove an asphalt coating on the lower surface of the SBS modified asphalt waterproof coiled material to be measured in the coiled material placing area; and the detection and identification module is mounted on the three-dimensional moving mechanism, and is used for performing material identification and thickness measurement on the SBS modified asphalt waterproof coiled material in the coiled material placement area. According to the invention, accurate scraping of the asphalt coating is realized, so that the accuracy of thickness measurement is improved, and the purpose of more accurate test is realized.

The application discloses a fine stone truss floor support plate slotting device and a use method, and belongs to the technical field of fabricated building component processing equipment. The device comprises a vertical frame, a lifting mechanism, a clamping mechanism and a slotting mechanism. The upper end of the vertical frame is provided with a slotting frame plate and a bottom plate. The lifting mechanism is installed on the bottom plate. The clamping mechanism is installed at the first end and the tail end of the two side walls of the slotting frame plate. The slotting mechanism is installed on the top plate of the slotting frame plate. The fine stone truss floor support plate is quickly fed and transported through the conveying rollers on the vertical frame. The floor support plate is lifted away from the conveying rollers by the lifting mechanism to avoid damage to the conveying rollers during the slotting process. The four corner portions of the floor support plate are synchronously clamped and fixed by the two sets of clamping mechanisms. The clamping force is uniform and the positioning is accurate. The displacement of the floor support plate during the slotting process is effectively prevented. The slotting precision is guaranteed. The entire slotting process is automatically operated without manual handheld equipment operation. The processing efficiency is improved. The device can meet the large-scale production demand of fabricated buildings.