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773results about How to "Improve machine efficiency" patented technology

Method and apparatus of a self-configured, model-based adaptive, predictive controller for multi-zone regulation systems

A control system simultaneously controls a multi-zone process with a self-adaptive model predictive controller (MPC), such as temperature control within a plastic injection molding system. The controller is initialized with basic system information. A pre-identification procedure determines a suggested system sampling rate, delays or “dead times” for each zone and initial system model matrix coefficients necessary for operation of the control predictions. The recursive least squares based system model update, control variable predictions and calculations of the control horizon values are preferably executed in real time by using matrix calculation basic functions implemented and optimized for being used in a S7 environment by a Siemens PLC. The number of predictions and the horizon of the control steps required to achieve the setpoint are significantly high to achieve smooth and robust control. Several matrix calculations, including an inverse matrix procedure performed at each sample pulse and for each individual zone determine the MPC gain matrices needed to bring the system with minimum control effort and variations to the final setpoint. Corrective signals, based on the predictive model and the minimization criteria explained above, are issued to adjust system heating/cooling outputs at the next sample time occurrence, so as to bring the system to the desired set point. The process is repeated continuously at each sample pulse.
Owner:SIEMENS IND INC

Method and welding device for the evaluation of the welding current intensity during the welding of container bodies

ActiveUS20110000892A1Compensate for changeManipulation errorSoldering apparatusElectrode supporting devicesSeam weldingElectric energy
In order to evaluate the welding current for the resistance seam welding of an overlap seam of container bodies, a welding with changing welding current intensity is carried out for a container body of the production series, resulting in a changing welding of the seam, ranging from the welding with a too high temperature to the welding with a too low temperature. The electric energy for this welding is determined several times during this welding and/or the temperature of the weld seam is determined several times and the welding current intensity is determined at which the welding of the individual container body is too cold and the welding current intensity at which the welding is too hot. This determination is based on the determined electric energy values and/or on the determined temperature values and based on this determination a preferred range for the welding current intensity within these limits of too hot and too cold is determined. By this, an evaluation if the welding current intensity is correct may take place in a simple way during the production. After the welding of the individual container bodies a changed welding current intensity lying between the welding current intensity of the too hot and of the too cold welding may optionally be set and used for the following series of container bodies of the production series.
Owner:SOUDRONIC

Dual heat-source heat-pump hot water device with extremely simple refrigerating loop

The invention discloses a dual heat-source heat-pump hot water device with an extremely simple refrigerating loop. The device is characterized by mainly comprising a compressor, a hot water condenser, a wind heat exchanger, a water heat exchanger, a four-way valve, a bidirectional throttle and the like, wherein a high pressure inlet of the four-way valve is connected with the outlet of the hot water condenser, and the other three ports thereof are connected with air inlets of the wind heat exchanger, the water heat exchanger and the compressor respectively; other ports of the wind heat exchanger and the water heat exchanger are connected with the bidirectional throttle; the exhaust port of the compressor is connected with the inlet of the hot water condenser, and is connected with high pressure air inlet of an electromagnetic pilot valve of the four-way valve; four functions of manufacturing hot water by utilizing water source or air energy and providing air-conditioning cool water by utilizing air-cooling or heating water can be realized by only switching the four-way valve, defrosting can be performed completely and quickly; and a water pre-heater is added to the device to reclaim the heat of waste hot water. The heat pump has the advantages of dual heat sources compensation and wide application range, has multiple functions, extremely simple structure, extremely convenient switching and over 5 of annual comprehensive energy efficiency ratio, and has great popularization value.
Owner:陈则韶

Position ensuring system for oblique machining in five-axis machine tool

There is provided a position ensuring system for oblique machining in a five-axis machine tool which, based on the inclination and the direction of an inclined hole to be machined, carries out measurement of an error in the pivot angle of a spindle head and an error in the rotation angle of a table before initiating machining of the hole, and can automatically correct the pivot angle of the spindle head and the rotation angle of the table upon machining of the hole, thereby precisely ensuring the position of the spindle head and the position of the table in the machining.
The position ensuring system includes: an A-axis calibration means for measuring a displacement angle, which is an error between a target value and a measured value of the pivot angle of the spindle head about the A-axis as the spindle head is pivoted to meet the inclination angle of an inclined hole to be machined in a workpiece, and correcting the pivot angle about the A-axis in such a manner that the displacement angle as measured with the corrected pivot angle as a target value fall within a tolerable range, before initiating machining of the workpiece, the measurement of displacement angle being carried out for all the inclined holes to be machined by execution of a measurement program prepared based on data on the shapes, including the inclination angles and the directions, of the inclined holes to be machined; a corrected data storage means for storing the corrected pivot angle about the A-axis for each of the inclined holes to be machined; and an A-axis control means for reading out the corrected pivot angle about the A-axis for each inclined hole upon executing a machining program for the workpiece by means of an NC apparatus, and instructing the corrected pivot angle about the A-axis to pivot the spindle head when executing oblique machining of the inclined hole.
Owner:TOSHIBA MASCH CO LTD

Die assembly upsetting and forging machine and working method thereof

The invention discloses a die assembly upsetting and forging machine and a working method thereof. The die assembly upsetting and forging machine comprises a machine body, a punch die assembly, a punch die assembly driving mechanism, a feeding mechanism and a material shearing sleeve; the machine body is provided with a die assembly device; the die assembly device comprises a first die assembly base and a second die assembly base; a first installation space is arranged on the side face, close to the second die assembly base, of the first die assembly base; a second installation space is arranged on the side face, close to the first die assembly base, of the second die assembly base; and the die assembly upsetting and forging machine is further provided with a first die assembly driving mechanism for driving the first die assembly base to horizontally move and a second die assembly driving mechanism for driving the second die assembly base to horizontally move. The working method comprises the steps that displacement whole-circle material shearing and material transferring of station parts are achieved through horizontal movement of the die assembly device, and then upsetting and forging are conducted. According to the working method, an independent material shearing mechanism and an independent material clamping and blank transferring mechanism are omitted, and the functions of die assembly material shearing and die assembly upsetting and forging and the function of a clamp are achieved.
Owner:杨东佐

Control method for inverter and inverter

The invention aims to provide a control method for an inverter and the inverter. The inverter is used in two three-phase alternating-current motors including the first motor and the second motor at the same time. The inverter comprises five sets of inverter bridge arms, a current sampling device and a hysteresis controller. The output end of the first set of inverter bridge arms is connected with a U-phase winding of the first motor. The output end of the second set of inverter bridge arms is connected with a V-phase winding of the first motor. The output end of the third set of inverter bridge arms is connected with a U-phase winding of the second motor. The output end of the fourth set of inverter bridge arms is connected with a V-phase winding of the second motor. The output end of the fifth set of inverter bridge arms is connected with the W-phase winding of the first motor and a W-phase winding of the second motor. The current sampling device is used for sampling a current. The hysteresis controller is connected with the current sampling device and the control ends of the five sets of inverter bridge arms and is used for obtaining the objective current and the output current of each phase winding of the two three-phase alternating motors and sending corresponding pulse control signals to the five sets of inverter bridge arms through hysteresis control according to the output currents and the objective currents.
Owner:北京君泰联创低碳节能科技有限公司

Reconnaissance type obstacle-surmounting machine snake

ActiveCN104925159AFlexible and accurate movementImprove migration abilityVehiclesEngineeringTorsion spring
The invention discloses a reconnaissance type obstacle-surmounting machine snake, and belongs to the field of robots. Because the conventional wall climbing robots cannot surmount walls of 90 degrees, the conventional wall climbing robots are difficult to move a single step on modern buildings in a common right-angle design; the capability of surmounting obstacles is weak, so that the conventional wall climbing robots cannot perform search, inspection and maintenance tasks at dangerous locations, and the application range is narrow. In order to overcome the defects of the conventional wall climbing robots, the wall climbing machine snake is designed by combining a snake-shaped robot which is high in stability, small in cross section, and high in flexibility. The machine snake can simulate a snake to raise the head and swing the head. The machine snake can raise the head like the snake, so that the machine snake can freely turn on walls of different angles, and the mobility is high. The machine snake walks by adopting wheels, and a buffering torsion spring is arranged at each joint, so that the turning accuracy is guaranteed. On the aspect of adsorption, the machine snake is adsorbed on a wall by utilizing a vacuum negative pressure theory; through comparison and analysis, a base structure is designed, so that the adsorption is firmer. A camera can rotate 360 degrees.
Owner:河北航轮科技有限公司

Method for machining slide core hole and measurement/correction system for use in machining of slide core hole

There are provided a method for machining a slide core hole and a measurement/correction system for use in machining of a slide core hole, which enable efficient machining of a slide core hole while utilizing the high-speed cutting performance of a five-axis machine tool. The method for machining an inclined slide core hole, comprised of a core pocket and a rod hole, in a mold as a workpiece by means of a five-axis machine tool having, in addition to X-axis, Y-axis and Z-axis, an A-axis for pivoting of a spindle head and a C-axis for rotation of a table, includes the steps of: pivoting the spindle head to meet the inclination angle of the slide core hole to be machined in the mold, and fixing the A-axis angle; spot-facing a shallow flat-bottomed spot-faced hole in the surface of the mold by using an end mill as a tool; drilling a guide hole in the bottom surface of the spot-faced hole by using a drill or a reamer as a tool; drilling said rod hole by using a gun drill as a tool with the guide hole as a guide for the gun drill; carrying out, as pre-machining before machining of said core pocket, shaping machining to form an intermediate pocket hole while expanding the spot-faced hole by using an end mill as a tool; correcting a reference point for use as a reference in machining of the core pocket based on measurement of the shape of the intermediate pocket; and executing a corrected machining program with the corrected reference point to carry out precision shaping machining of the core pocket while expanding the intermediate pocket by using an end mill as a tool.
Owner:TOSHIBA MASCH CO LTD

Reverse circulation construction technique and apparatus of single rope impact drill

The invention discloses a process and a device for the reverse circulation execution of a single rope impact drill, the reverse circulation execution device comprises a percussion drill, a slurry pumping pipe at the hole bottom and a slurry purifier at the hole mouth, the drill bit is composed of a drill bit body and a cutting blade, the drill bit body is composed of a hammer body, corner boards and a base, the upper end of the hammer body is provided with a connecting hold connected with a non-rotating rope, the corner boards are distributed in the same angle axially on the cylindrical or circular-tube-shaped hammer body, the base is composed of coaxial inner base and outer base, which are tube-shaped, the upper surfaces of the two base are in the same plane, the inner base is higher than the outer base, the lower ends of the corner boards are connected with the two bases, the hammer body, the corner plate and the base are integrated by welding, casting or riveting, the lower end of the base is evenly equipped with multiple cutting blades; pile types of various section shapes can be dilled by the drill bit, the reverse circulation process of hole bottom slag pumping is used when drilling, the execution process is fastened, the energy consumption is reduced, the slag is cleaned completely and clearly, the time for cleaning the hole is shortened.
Owner:张安禄
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