53results about How to "Reduce the number of feeding" patented technology

The invention relates to a satellite-borne sparse phased-array multi-beam antenna with a reflector, and belongs to the technical field of antennas. The satellite-borne sparse phased-array multi-beam antenna comprises the offset parabolic reflector, a feed source array and a master control circuit. The feed amplitude and phase of the feed source array are controlled by the master control circuit, and electromagnetic waves radiated by the feed source array are converged via the offset parabolic reflector and then are radiated to space. The quantity of required feed source units of the antenna is low, beams can be subjected to phase control, and the satellite-borne sparse phased-array multi-beam antenna can be widely applied to satellite-borne communication, detection and positioning systems.

The invention discloses a formula for automatically adjusting the powder supplying height of a metal 3D printing machine. The formula includes the following steps that S1, the size parameters x0 and y0 of a forming cylinder and the size parameter x0' of a powder supplying cylinder are input; S2, the values of x and y are obtained and input according to the contour of a current printing layer; S3,the layer thickness h0 of the current printing layer is obtained; S4, the powder supplying height is changed in real time according to the formula (please see the formula in the specifications); and S5, when the S1, the S2, the S3 and the S4 are conducted for the fifteenth time, the coefficient A is multiplied before the current powder supplying height calculating formula according to the waste material amount in a waste material collecting box, the value ranges from 0.9 to 1.5, and the powder supplying height is increased or reduced according to the waste material amount. The powder supplyingheight of the current printing layer can be dynamically adjusted in real time according to the part section area, the part placing position, the powder batch, the powder density changes in the forming cylinder and the powder supplying cylinder and changes of operators and other factors, and therefore the size of waste materials can be minimized on the premise that powder is fully spread on the current printing layer.

The invention discloses a dry slurry material preparation technology. The dry slurry material preparation technology comprises the following steps: a, mixing dry powders, namely adding active materials, a conducting agent and an adhesive-bonding agent into a material agitator, and carrying out medium-speed agitating for 25-45 minutes, wherein the temperature of the powder materials is controlled at 15-30 DEG C during the whole dry-agitating process; b, kneading slurry materials, namely (1) adding a solvent and carrying out agitating at a low speed for 2-5 minutes, (2) carrying out agitating ata medium-low speed for 2-5 minutes, (3) carrying out agitating at a medium speed for 15-30 minutes and (4) carrying out wall-scraping agitating at high speed for 40-50 minutes, wherein the material temperature is controlled at 15-30 DEG C during the whole kneading and agitating process of the slurry material; c, carrying out high-viscosity agitating, namely scraping the wall, adding a solvent, and carrying out high-speed agitating for 40-45 minutes, wherein the temperature of the slurry material is controlled within the range of 25-35 DEG C; d, carrying out low-viscosity agitating, namely scraping the wall, adding a solvent, and carrying out medium-speed agitating for 60-70 minutes, wherein the temperature of the slurry material is controlled within the range of 30-45 DEG C; and e, adjusting viscosity, namely adding a solvent, and carrying out medium-speed agitating for 30-32 minutes, wherein the temperature of the slurry material is controlled within the range of 30-45 DEG C. Compared with existing technologies, the dry slurry material preparation technology is capable of shortening the time of the material-blending cycle by 40-50%; and thus, material-blending operations are simplified so as to improve production efficiency and equipment utilization rate.

The invention discloses a chipping packager for scrap which can carry out three-dimensional compression of the scrap and has more compact packaging; the chipping packager comprises a main frame in which a packaging chamber, a feed inlet and a discharge hole which are communicated with the packaging chamber are arranged; the chipping packager also comprises a compression device connected on the main frame and the compression device comprises a first cylinder device, a second cylinder device and a third cylinder device; pushing heads of the first cylinder device and the second cylinder device are matched with the packaging chamber; the pushing heads of the first cylinder device, the second cylinder device and the third cylinder device form a closed space at the stroke end in the packaging chamber. A shearing device is also arranged on the main frame. The chipping packager can realize the three-dimensional squeezing packaging of the scarp, automatically chip the residual feed and irregular scarp and has high automation degree, high efficiency as well as good safety. The chipping packager is mainly applied to the field of processing the scrap.

The invention discloses a broadband dual-linearly-polarized or dual-circularly-polarized feed source in the fields of wireless communication and radio astronomy. The broadband feed source consists of four groups of radiation oscillators, 2 impedance-matched printed boards and a circularly-polarized electric bridge, wherein the radiation oscillators are log periodic dipole arrays, and are connected with the two impedance-matched printed boards which are orthogonally arranged, so that impedance values of the wide ends of metal microstrip lines of the impedance-matched printed boards are 1 / 4 of impedance values between left and right pins of the radiation oscillators, so that feeding is simplified, and high performance is achieved. The broadband feed source is simple and compact in structure, low in feed loss and machining cost, high in feed efficiency and particularly applicable to a feed network of a feed source or antenna working under a broadband dual-linear-polarization or dual-circular-polarization application condition.

The invention relates to a satellite-borne sparse phased-array multi-beam antenna with a reflector, and belongs to the technical field of antennas. The satellite-borne sparse phased-array multi-beam antenna comprises the offset parabolic reflector, a feed source array and a master control circuit. The feed amplitude and phase of the feed source array are controlled by the master control circuit, and electromagnetic waves radiated by the feed source array are converged via the offset parabolic reflector and then are radiated to space. The quantity of required feed source units of the antenna is low, beams can be subjected to phase control, and the satellite-borne sparse phased-array multi-beam antenna can be widely applied to satellite-borne communication, detection and positioning systems.

The invention discloses a hopper which is arranged on the outer side of a blender and used for loading materials. The hopper comprises a hopper body, the lower side of the hopper body is provided with a discharging port, the upper side of the hopper body is provided with a feeding port, the cross sectional area of the hopper body is gradually decreased from top to bottom, the hopper body is provided with a connection opening used for being connected with the blender, one side opposite to the connection opening is provided with an arc surface, the connection opening is connected with the arc surface through two side planes, and the side planes are connected with the arc surface through telescopic frames. By increasing the capacity of the hopper body, the one-off feeding amount can be increased, and the feeding frequency is reduced; in addition, the application range can be enlarged by adjusting the capacity of the hopper.

The invention discloses automatic feeding, packaging and injection molding equipment and an application method thereof. The automatic feeding, packaging and injection molding equipment comprises a mounting table, an injection mold, an automatic feeding device, an injection component and a receiving device; the injection mold is arranged on one side of the mounting table; the automatic feeding device comprises a mounting step, a dewatering and storing component, a weighing component, a mixing component and a conveying channel; the mounting step is arranged on the other side of the mounting table; the mounting step comprises a first step, a second step and a third step which are arranged from low to high; the mixing component, the weighing component and the dewatering and storage component are sequentially arranged on the first step, the second step and the third step; the injection component is arranged between the injection mold and the automatic feeding device; the receiving device comprises a base, a fixed frame, a movable frame, a bag storage component and a suction cup; the base is arranged on one side of the mounting table; the fixed frame and the movable frame are oppositelyarranged on the two sides of the base; the bag storage component is fixedly arranged on one side of the fixed frame; and the suction cup is arranged on the side, opposite to the movable frame, of thefixed frame.

The invention relates to the technical field of pipeline inner wall silicone rubber section coating, in particular to pipeline inner wall silicone rubber section coating equipment and a working method thereof.The pipeline inner wall silicone rubber section coating equipment comprises a first base table, a second base table, a material storage box, a pipe taking assembly, a pipe conveying assembly, a pipe drawing assembly and a coating assembly; meanwhile, the inner wall of the pipeline is subjected to section coating of silicon rubber through rotation of the section coating rotary drum, the same pressure can be applied to the inner wall of the pipeline at each position of the section coating rotary drum, and then the inner wall of the pipeline is subjected to section coating more evenly through the equipment; the sleeve brush can prevent the section coating rotary drum from scratching the inner wall of the pipeline, the inner wall of the pipeline is protected, the coating box and the coating pipe are arranged, silicone rubber coating can be continuously provided for the section coating rotary drum, and silicone rubber coated on the inner wall of the pipeline in a section mode can be thick enough.

The invention discloses a hopper which is arranged on the outer side of a blender and used for loading materials. The hopper comprises a hopper body, the lower side of the hopper body is provided with a discharging port, the upper side of the hopper body is provided with a feeding port, the cross sectional area of the hopper body is gradually decreased from top to bottom, the hopper body is provided with a connection opening used for being connected with the blender, one side opposite to the connection opening is provided with an arc surface, the connection opening is connected with the arc surface through two side planes, and the side planes are connected with the arc surface through telescopic frames. By increasing the capacity of the hopper body, the one-off feeding amount can be increased, and the feeding frequency is reduced; in addition, the application range can be enlarged by adjusting the capacity of the hopper.

The invention discloses a multi-layer dual-frequency broadband antenna and communication equipment, comprising: a dielectric substrate, a first radiating patch, a second radiating patch, a feeding part, and a signal input piece; the feeding part includes a feeding probe, a gradient The transmission line, the two ends of the feeding probe are respectively electrically connected to the first radiation patch and the tapered transmission line, and the other end of the tapered transmission line is electrically connected to the signal input chip; wherein, both the first radiation patch and the second radiation patch have two symmetrical axis, the length of the first radiating patch along one of its symmetry axes is greater than that along its other symmetry axis, the length of the second radiating patch along its one symmetry axis is greater than its length along its other symmetry axis, and the length of the first radiating patch along its other symmetry axis, along the dielectric substrate The surface normal direction of the first radiation patch overlaps with the second radiation patch, and the first radiation patch is smaller than the second radiation patch; the feeding position of the feeding probe electrically connected to the first radiation patch deviates from the first radiation patch The two symmetry axes of the patch are set. The invention has the technical characteristics of ultra-low profile, dual-frequency broadband and simple structure.

The invention provides a graphene paint spraying device for double-layer storage tank repairing. The graphene paint spraying device comprises a tank body, a stirring machine, a feeding port, a partition plate, a baffle plate, a leaking plate, leaking holes, a rotating rod, a gear, connecting rods, stopping plates, a toothed rod, a piston I, a reducing U-shaped pipe, a piston II, a pressing plate,springs, a filter screen and a supercharger. The graphene paint spraying device for double-layer storage tank repairing has the beneficial effects that when mixed graphene paint is almost used up, thepressing plate is ejected under the action of the springs; due to the principle of a communicating vessel, the toothed rod moves to the left, and the gear and the rotating rod are driven to rotate counterclockwise by 30 degrees; at the time, the stopping plates are staggered from the leaking holes; the paint positioned above the partition plate leaks downward through the leaking holes and can beused after being screened, and thus the paint sufficiency can always be kept; and accordingly, the effect that the paint is always sufficient can be achieved, the situations of paint insufficiency andspraying non-uniformity can be avoided, the adding frequency can be reduced, and the working efficiency can be improved.

A spongy iron for burden is proportionally prepared from the iron ore concentrate powder with iron content more than 66%, or iron scales and spongy iron additive prepared proportionally from carbon powder, carbonate of alkali metal or alkali-earth metal and the halide of alkali metal or alkali-earth metal.

The invention relates to the technical field of printer equipment, in particular to a selenium drum automatic powder filling system, which comprises a supporting rod and a supporting plate connected to the supporting rod and extending forwards. A first vertical material passing pipe communicating up and down is fixed to the supporting plate, the upper end of the first vertical material passing pipe communicates with a hopper, the lower end of the first vertical material passing pipe communicates with an oblique material passing pipe extending towards the front lower portion, a lower pipe opening of the oblique material passing pipe communicates with a second vertical material passing pipe located below the first vertical material passing pipe, a discharging nozzle is installed and connected to an outlet in the lower end of the second vertical material passing pipe, and the powder filling effect is better.

The invention discloses a device for automatically cutting off fiber nibs. The device comprises a cabinet, a discharging mechanism, a guiding mechanism, a feeding mechanism, a size limiting mechanism,a cutting mechanism and a collecting mechanism, wherein a fixing frame is arranged on the cabinet, the discharging mechanism is arranged on the fixing frame and is used for guiding out fiber strips,the portion, located at one side of the fixing frame, of the cabinet is provided with a supporting platform, the guiding mechanism and the feeding mechanism are arranged on the supporting platform, and the feeding mechanism pulls the fiber strips and conducts guiding through the guiding mechanism. When the head ends of the fiber strips are conveyed to the position above the conveying mechanism andabut against the size limiting mechanism, the cutting mechanism cuts the fiber strips, and the fiber strips which are cut off are collected through the collecting mechanism. The device has the advantages of being high in machining efficiency and machining precision, high in safety and capable of guaranteeing life security of employees.