6558results about How to "Improve job stability" patented technology

The present invention is one novel cover opening and closing mechanism for pressure cooker, and relates to daily use article technology. The cover opening and closing mechanism set between the cover and cooker body of pressure cooker includes at least two clamps to buckle the edge of the cover to the cooker body, link rods in the same number as the clamps and hinged to the cover and the clamps, one turntable in the center of the cover capable of shifting the link rods to swing about the hinging point on the cover. The cover opening and closing mechanism makes the pressure cooker possess high work stability, high safety, high reliability, high use flexibility and long service life.

The invention discloses an automatic follow centering and clamping device for a numerical control grinder. A middle clamping rod (5) is sleeved in a sliding way on a supporting body (12) which is provided with a driving mechanism which drives the middling clamping rod (5) to reciprocatingly move axially. An upper lever clamping arm (4) and a lower lever clamping arm (15) are hinged on the supporting body (12) with the middle clamping rod (5) axis of symmetry. The clamping ends of the upper lever clamping arm (4) and the lower lever clamping arm (15) are corresponding to the clamping end of the middling clamping rod (5) which is provided with a symmetric cuniform-shaped block (9) corresponding to opening ends of the upper lever clamping arm (4) and the lower lever clamping arm (15). The supporting body (12) is provided with an elastic device which keeps the clamping ends of the upper lever clamping arm (4) and the lower lever clamping arm (15) open. The invention is an automatic follow centering and clamping device applying automatic follow and moving, automatic centering and automatic compensating to a numerical control grinder.

A carrier tape feeder is provided. The carrier tape feeder includes a unit for loading a carrier tape, a picking-up unit and a driving unit. The pick-up unit includes a knife portion, a folding-guiding portion, and an inversion-guiding portion. The knife portion separates a cover tape from a base tape in a first adhesive portion. The folding-guiding portion is spaced from one lateral side of the knife portion to induce folding of the cover tape separated by the knife portion in the lengthwise direction in a state in which the cover tape is partially attached to the base tape in a second adhesive portion. The inversion-guiding portion extends in an oblique direction from the knife portion and the folding-guiding portion toward the outside of the carrier tape to induce inversion of the upper and lower surfaces of the cover tape folded in the folding-guiding portion so as to be superimposed on the base tape. The distal end of the lateral side of the folding-guiding portion opposed to the knife portion extends above the second adhesive portion.

The invention discloses a bus-based input / output (IO) acquisition and control extending device. The device comprises an advanced reduced instruction-set computer machine (ARM) control module, a power conversion module, a controller area network (CAN) bus communication module, a switching value input module, an analog quantity input module, a pulse width modulation (PWM) output module, an analog quantity output module and other parts, wherein the modules are connected with the ARM control module. The device can be connected with various analog quantity sensors, switching value sensors and external control equipment through the interfaces of the modules and connected with a system master controller through a CAN bus, converts sensor information into a bus-based signal and transmits the bus-based signal to the master controller by a CANOPEN communication protocol, receives the control command of the master controller and controls all output ports. The extending device can extend the interface number of the master controller and solve the problem of distance limitation generated when the sensors or the external control equipment is connected with the master controller. The bus-based IO acquisition and control extending device can be applied to various distributed control systems and is particularly suitable for the integration of engineering machinery control systems.

The invention discloses an automatic safety valve filter screen installation device which comprises a filter screen material distribution mechanism. The filter screen material distribution mechanism comprises a material distribution guide groove, a material distribution block and a material distribution power piece. A material supply guide groove is formed in the right side of the material distribution guide groove. A clamping groove is formed in the side, right opposite to the material supply guide groove, of the material distribution block. The automatic safety valve filter screen installation device further comprises a filter screen clamping mechanism capable of clamping a filter screen in the material distribution guide groove and installing the filter screen in a safety valve. The filter screen clamping mechanism comprises a clamping jaw mechanism and a mechanical hand. In work, the material distribution power piece drives the material distribution block to be located at the rear end of the material distribution guide groove, the clamping groove of the material distribution block is right opposite to the material supply guide groove, the filter screen enters the clamping groove of the material distribution block through the material supply guide groove, the material distribution power piece drives the material distribution block to move forwards along the material distribution guide groove, the material distribution block pushes the filter screen to the front end of the material distribution guide groove through the clamping groove, the filter screen in the material distribution guide groove is clamped and installed in the safety valve through the filter screen clamping mechanism, and the whole filter screen installation work is finished. The automatic safety valve filter screen installation device can be used for replacing manual operation, work stability is good, the assembling cost is low, and work efficiency is improved.

The invention discloses a channel balance and sound field control method and device of a digitalized speaker system on the basis of a single generalized encoder. The method comprises the following steps of: (1), digital format conversion; (2) multi-channel balance processing; (3) sound field control processing; (4) serial-parallel conversion processing; (5) generalized encoding processing; (6) extraction selecting processing; (7) serial-parallel conversion processing; and (8) power amplification of digital signals of all channels, and driving of sound production of a digitalized speaker load. The device comprises a sound source, a digital format converter, a channel balancer, a sound field controller, a serial-parallel converter, a generalized encoder, an extraction selector, a serial-parallel converter, a multi-channel digital power amplifier and the digitalized speaker load; and all the units are connected in sequence. According to the method and device disclosed by the invention, volume, power consumption, cost and hardware implementation resources of the system are reduced, the electroacoustic conversion efficiency and the anti-jamming capability of the system are enhanced, and the inband frequency response plainness degree and the sound field control capability of the system are increased.

The invention discloses a stereo logistics system access cargo path optimization control system and a method. The stereo logistics system access cargo path optimization control system comprises a monitoring upper computer, a programmable logic controller (PLC) module and an embedded motion controller, wherein an input end of the PLC module is connected with a plurality of cargo arrival detection sensors and a plurality of cargo position detection sensors, and an output end of the PLC module is connected with a plurality of frequency converters and a plurality of contactors. An input end of the embedded motion controller is connected with a piler state detection sensor, and an output end of the embedded motion controller is connected with an X-axis servo motor driver, a Y-axis servo motor driver and a Z-axis stepper motor driver. The method comprises the following steps: a logistics task signal is input, the upper computer is monitored to conduct path optimization, and the embedded motion controller and the PLC module respectively control the piler and a cargo conveying line to execute corresponding logistics tasks. The stereo logistics system access cargo path optimization control system and the method are reasonable in design, convenient and fast to use and operate, high in control precision, reliable in working reliability and stability, high in logistics efficiency, strong in practicability and high in popularization and application values.

The invention provides a panel heat pipe with an embedded porous wick and a manufacturing method thereof. The panel heat pipe comprises an upper metal cover plate, a lower metal cover plate, and a closed cavity is formed between the upper metal cover plate and the lower metal cover plate in a welded and sealed mode. The cavity is filled with liquid working media. The inner surface of the cavity is divided into an evaporation face and a condensation face. The condensation face and the evaporation face are paved with a thin-layer porous wick structure formed by sintering metal powder particles. Sintering porous columns with inner grooves which are distributed in an array mode are machined on the evaporation face. Porous protrusions matched with the inner grooves are machined in the condensation face. The sintering porous columns and the porous protrusions are in close fit to form an embedded porous structure column. A working medium backflow channel is formed in the embedded porous structure column. According to the panel heat pipe, the capillary pressure is improved, the working medium backflow speed is remarkably increased, vapor-liquid two-phase separation is achieved, and the heat transfer performance is greatly improved; meanwhile, the embedded wick plays a supporting column role, and panel heat pipe inward sinking or crack deformation or other problems are effectively avoided.