15results about How to "Continuous regulation" patented technology

The invention discloses a lower discharging foaming device which comprises a movable base, a lower discharging foaming device, a lower discharging foaming device and an upper discharging foaming device, and a walking wheel set is arranged at the bottom of the movable base; the vertical bracket is fixedly mounted on the movable base; the variable-length flow guide mechanism comprises a flow guide channel which is arranged in an inclined mode and is telescopic in length, and the higher end of the flow guide channel is connected with the upper portion of the vertical support; the length adjusting driving mechanism is mounted on the vertical bracket, is in transmission connection with the movable part of the length-variable flow guide mechanism, and is used for driving the movable part to move so as to change the effective length of the flow guide channel; and the buffer mechanism is arranged in the groove of the flow guide groove channel and is used for providing damping buffer when the foaming profile slides down along the groove.

The utility model relates to the technical field of machining, in particular to a blade meshing size debugging visualization device. According to the technical scheme, the device comprises a tool rest and a top plate, a basic cushion block is arranged in the middle section of the tool rest, a lower tool apron is arranged between the lower portion of the basic cushion block and the tool rest, a lower blade is rotationally arranged on the lower tool apron, an upper tool apron is arranged between the upper portion of the basic cushion block and the tool rest in a lifting mode through a lead screw assembly, and an upper blade is rotationally arranged on the upper tool apron. The top plate is arranged at an opening in the top end of the tool rest, a positioning assembly is arranged on the upper surface of the top plate, and the positioning assembly is used for limiting the rotating state of a screw of the lead screw assembly. According to the utility model, the high-precision visual adjustment of the blade gap is realized through the matching of the structures, and the debugging efficiency and the processing stability are obviously improved.

This invention belongs to the field of polyurethane adhesive production technology, specifically relating to a reaction vessel for polyurethane adhesive production. The reaction vessel includes a tank body, with a stirring motor fixed to the upper end of the tank body. A stirring shaft is fixed to the output end of the stirring motor, and the tank body and the stirring shaft are rotatably connected. Multiple adjustment chambers are sequentially formed inside the stirring shaft from top to bottom. Multiple stirring units are assembled on the outer side of the stirring shaft and inside the tank body. Each stirring unit consists of multiple stirring blades located on the same horizontal plane. This invention uses a vertically positioned sensing plate as a direct viscosity sensing element, which overcomes the oil pressure inside the swing cylinder and drives the sleeve, cross arm, and bushing to produce a corresponding amplitude of horizontal swing. This is transmitted to the stirring blades through an angle adjustment component, achieving automatic adjustment of the stirring blade angle. This allows the stirring blades to dynamically adjust the stirring angle according to real-time changes in the material viscosity.

The utility model provides a flatness fine adjustment device for butt joint adjustment of steel box girder units, and belongs to the technical field of welding adjustment tools. The flatness fine adjustment device comprises a fixed base plate, a special-shaped supporting plate, a sleeve and an adjusting supporting rod, the fixed base plate is welded and fixed to the lower steel plate of the steel plate I and the steel plate II, needing flatness adjustment, of the two adjacent steel box girder units, and the special-shaped supporting plate is perpendicularly welded to the fixed base plate. The side face of the upper portion of the special-shaped supporting plate is fixedly connected with a sleeve, and an adjusting supporting rod is screwed in the sleeve in a threaded mode and presses the steel plate on the higher side by rotating and moving downwards. According to the utility model, the levelness of the plate surfaces between the adjacent steel box girder section units can be efficiently, safely and quickly adjusted, the height difference of the two adjacent plate surfaces can be controlled within a required range, the overall mounting precision of the steel box girder is effectively improved, and a powerful guarantee is provided for the stability and safety of a bridge structure.

The application relates to a source adjustable resistance circuit for a high-speed differential amplifier, belonging to the technical field of high-speed analog and radio frequency integrated circuits, comprising a high-speed differential amplifier, a degeneration resistance unit and a control unit; the degeneration resistance unit is composed of a first MOS transistor; the source and the drain of the first MOS transistor are respectively connected to two source nodes of a differential pair transistor of the high-speed differential amplifier, serving as source degeneration resistance thereof, and the gate voltage of the first MOS transistor is generated by the control unit; the control unit is used for generating the gate control voltage of the first MOS transistor. The application replaces a large resistance array with a single MOS transistor, greatly reduces the area, greatly reduces the chip cost, significantly reduces the parasitic capacitance of the degeneration node to the ground, and improves the amplifier bandwidth.

This invention relates to the field of forestry pest and disease control technology, specifically to an intelligent simulation system for the control effect of natural enemies in forestry pest and disease control. The system includes an ecological monitoring integration module, a behavior stage discrimination module, a predation rate inversion module, a stage index mapping module, and a parameter feedback correction module. Based on forest pest monitoring nodes, it analyzes the pest quantity information uploaded by the nodes and determines the sampling point location corresponding to signal changes. This invention integrates forest pest monitoring data, natural enemy activity, and environmental changes in a time series, and introduces behavior stage discrimination based on ecological state information. Combined with paired statistics of natural enemy behavior and pest quantity, it dynamically reveals the ecological response relationship under different behavior stages. The simulated data can automatically adjust the parameter set according to periodic monitoring differences, and the stage effects and trends are promptly mapped into management indicators, making the simulation of control effects more stage-discriminative and ecologically adaptable.

This invention discloses a deep learning-based method for self-tuning controller parameters in a motor servo system. The method includes: constructing a hybrid model combining a mechanistic model and feedforward neural network residual compensation; performing multi-objective optimization based on this model to obtain a set of initial offline controller parameter values; and constructing a parameter adjustment model based on a Long Short-Term Memory (LSTM) network during online operation. This model takes the system state sequence as input and outputs the percentage change in parameter offset relative to the offline initial values, achieving online, constrained, and small-range dynamic tuning of the controller parameters. This invention improves the reliability of performance prediction through the hybrid model and ensures engineering safety through a constrained online adjustment mechanism, thereby significantly improving the tracking accuracy, stability, and adaptability of the servo system under complex and variable operating conditions.

The application discloses a multi-angle welding device for steel plate processing, and relates to the field of metal welding equipment. The outer side of a bearing welding base body is provided with a hydraulic driving part, the output end of the hydraulic driving part is connected with a bearing butt joint assembly, and the upper end of the bearing butt joint assembly is used for placing a steel plate workpiece to be welded. The multi-angle welding device for steel plate processing is independently and synchronously driven to rotate the steel plate placed by the bearing butt joint assembly around the same rotary axis. When the hydraulic driving part pushes the corresponding steel plate upward to make the steel plate angularly move, the rotation angle of the steel plate and the stroke of the driving rod are in linear relationship. An operator can quickly calculate the extension amount of the driving rod according to the required included angle, and the repeated trial is not needed. The symmetrical adjustment mode makes the angle adjustment of the two steel plates not interfere with each other, and the adjustment process is stable and continuous. The adjustment can be realized in the range of 0-180 degrees, and the stable angular welding stability of the two groups of steel plates in angular contact can be ensured.

The invention relates to the field of sawing equipment, in particular to a double-blade type stepless adjusting tool and adjusting method.The tool comprises a limiting ring, the limiting ring is sleeved with a first saw blade and a second saw blade, the second saw blade is arranged on the side, away from the limiting ring, of the first saw blade, and the limiting ring is arranged on the side, away from the second saw blade, of the first saw blade; a first annular groove is formed in the side, facing the second saw blade, of the first saw blade, an elastic piece is arranged in the first annular groove, the elastic piece abuts against the second saw blade and is used for providing elastic force for the first saw blade and the second saw blade to be away from each other, the second saw blade is provided with an adjusting assembly, the adjusting assembly is connected with the limiting ring, and the limiting ring is arranged on the second saw blade. And the push rod is used for pushing the second saw blade so as to change the distance between the first saw blade and the second saw blade. By arranging the adjusting assembly integrated on the limiting ring and the elastic piece contained in the groove of the saw blade, the distance between the two saw blades can be continuously and rapidly adjusted, the adjusting efficiency is improved, and the downtime is shortened.

Embodiments of the present application provide an imaging lens module, a projection display device and a vehicle-mounted projection system. The imaging lens module comprises, in order from a projection surface side to an image source side along an optical axis direction, a fixed assembly, a diaphragm, a movable compensation assembly and an equivalent prism assembly. The movable compensation assembly is configured to be movable along the optical axis. An axial distance T1 between the projection surface and the fixed assembly is continuously variable and satisfies 130mm≤T1≤1500mm. When T1 changes, an axial distance T3 between the diaphragm and the movable compensation assembly and an axial distance T4 between the movable compensation assembly and the equivalent prism assembly change correspondingly and satisfy a relationship (T3'+T4') / (T3+T4)=1, where T3' and T4' are the changed T3 and T4 respectively.

The invention is applicable to the technical field of fire scientific experiments, and provides a slit-adjustable and real-time dynamic measurement fire cyclone experiment device which comprises a fire cyclone main frame device, a movable fire cyclone experiment table, an electrical console and a real-time dynamic measurement support system. The fire cyclone main frame device drives movable glass to move along a high-precision linear guide rail through a servo electric cylinder, and dynamic sealing is ensured through an L-shaped metal baffle. The electrical console takes a PLC as a core and has multiple programmable operation modes. The real-time dynamic measurement support system can remotely adjust the spatial position of the sensor, and can be linked with the movable fire cyclone experiment table to realize automatic positioning and resetting. The problems that a traditional device is non-adjustable in slit, single in air inlet mode, poor in sealing performance, inconvenient to operate and the like are solved, and a high-controllability and high-repeatability experiment platform is provided for quantitative research of fire whirlwind.

The utility model relates to the technical field of medical instruments, in particular to an oral muscle trainer. The oral muscle trainer comprises a handle, two elastic pieces and an adjusting block, one end of each elastic piece is fixedly arranged in the handle, and the other end of each elastic piece is connected with an occlusion piece; the adjusting block is movably arranged on the handle and located between the two elastic pieces, and the adjusting block is configured to reciprocate in the length direction of the elastic pieces under the action of the driving device after being stressed. According to the oral muscle training device, the elastic force between the two occlusion pieces can be adjusted, high universality is achieved, the degree of freedom of movement of the adjusting block of the oral muscle training device is high, and stepless change of the elastic force can be achieved.

This utility model discloses a traction device for garden engineering, including a guide rail, which is arranged on the outside of the plant's roots and fixed to the ground; a sliding member, which slides along the guide rail to select a suitable traction position according to the plant's branches; a traction member, which is installed through the sliding member; and a traction rope, one end of which is wrapped around the traction member and the other end is wrapped around and fixed to the branch being tractioned. This device can achieve multi-dimensional flexible adjustment, is easy to operate, is reliable in fixation, and can adapt to the dynamic growth needs of plants.

The utility model relates to electronic injector technical field, propose a controllable needle length handheld electronic injector, including casing, push needle linkage assembly, clamping assembly, injection assembly, push injection motor assembly and illuminator, the inside one end of casing fixedly connected interactive component, the inside lower fixedly connected mainboard assembly of casing, the inside fixedly connected push needle linkage assembly of casing middle part, the upper fixedly connected clamping assembly of push needle linkage assembly middle part, clamping injection assembly above clamping assembly, the lower fixedly connected push injection motor assembly of clamping assembly right side, the utility model discloses the adjustment needle length motor, transmission screw rod and linkage mechanism in setting needle length adjusting assembly, can accurate control the displacement of sheep horn fork, thereby realizes the continuous, accurate adjustment of needle length, sets up the needle power of fast, constant stroke of electromagnet component, ensures the depth and speed of every needle, is not influenced by artificial factor, improves operation standardization and effect reliability.

This invention relates to the preparation of wide bandgap semiconductor materials using chemical vapor deposition (CVD) technology. It provides hexagonal boron nitride (h-BN) thin films, their preparation methods, bandgap modulation methods, and a broadband ultraviolet photodetector. Using magnesium nitride as the dopant source, the dopant source is simultaneously introduced into the epitaxial layer of the h-BN thin film via CVD, achieving in-situ doping of magnesium in the h-BN lattice. By controlling the magnesium doping concentration, the bandgap of the h-BN thin film is modulated from 5.91 eV to 3.38 eV. Based on this magnesium-doped h-BN thin film, a broadband ultraviolet photodetector is also prepared, broadening the ultraviolet absorption range to the 185-365 nm band, achieving wide-spectrum, high-sensitivity ultraviolet detection. The doping process of this invention is controllable, and the bandgap modulation effect is significant, breaking through the spectral response limitations of intrinsic h-BN-based detectors and promoting the application of optoelectronic devices in environmental monitoring, biochemical analysis, and other fields.