85results about How to "Uniform and stable pressure" patented technology

An injection control apparatus includes an injection member; a drive section for injection; an injection-speed detection processing section which detects injection speed; an injection-pressure detection processing section which detects injection pressure; and a drive control processing section which drives the drive section for injection on the basis of the injection speed and the injection pressure to thereby perform pressure control before start of charging of a molding material into a cavity, and speed control after the start of charging of the molding material into the cavity. Since the drive section is driven on the basis of the injection speed and the injection pressure such that pressure control is performed before start of charging of a molding material into a cavity, and speed control is performed thereafter, the pressure of the cavity after the molding material has entered the cavity becomes stable and uniform.

The present invention provides a solar cell panel lamination apparatus and a lamination method, wherein the lamination apparatus comprises an upper chamber and a lower chamber. A first airbag is provided in the upper chamber, and a thermoconductive filler is perfused in the first airbag. The first airbag is in connection with a constant-temperature heater through a first air circulating line, an arch support is arranged in the lower chamber, an arch upper bracket, matched with with the degree of curvature of the arch support, is disposed between the upper chamber and the arch support, and the lower chamber is also provided with a vacuum extraction port. The lamination apparatus is simple in structure, has high yield, and is suitable for producing solar panels with a curved surface.

The invention relates to a smoke desulfuration cycle slurry spray device, which are layered in the adsorption tower. Each spray device is formed by at least two parallel spray main tube and the spray sub tubes branched from the spray main tube. The dual-direction ejectors that branched from the spray sub tubes are interlaced into mesh spray layer; two parallel spray main tubes are through the hole of support beam inside the adsorption tower, and horizontally fixed via single-beam support. The invention can solve the problems that not enough mixed between the smoke and cycle slurry; lower desulfuration effect; and easy abrasion and leakage at the interface between the spray tubes and the adsorption tower. The invention can be used in wet smoke desulfuration adsorption tower to utilize the limestone or lime slurry to adsorb the sulfur dioxide and sulfur trioxide.

The invention discloses a conductivity representing device for a proton exchange membrane, which is used for quickly measuring the conductivity of the proton exchange membrane through the combination with an electrochemical workstation or an alternating-current impedance tester, and includes a fixing rack, membrane fixtures and a pressure device, wherein the fixing rack is formed through assembling an upper bottom plate, a lower bottom plate and two supporting screws; the membrane fixtures are at least in one group and are made of insulating material plates; each group of the membrane fixtures includes two clamping plates tightly overlapped and combined; the proton exchange membrane whose conductivity is to be tested and an electrode to be tested are placed between the two clamping plates of each group of the membrane fixtures; and the pressure device includes a pressing screw, a pressing buffer plate and a spring. Accurate testing result can be obtained through adjusting measurement parameters of the device to be matched with various proton exchange membranes with different proton conductivity for use, so that the measuring requirements of proton exchange membranes with different proton conductivity ranges can be met; and the device has the advantages of ingenious design, stable structure and stronger practicability.

It is a kind of joint carding fine vibration cotton basket, including the cotton-matching tip and the vibration basket. The basket includes short fiber pore, cotton-giving roller, linter gin, curved face covering, vibration board, swinging machinery, shell of the cotton basket, baffle plate in front, cotton-outgoing roller, mobile cotton board, doffing electric engine and cotton giving electric engine. The cotton giving electric engine is set below the short fiber pores. The linter gin is fixed below the 2 cotton-giving roller, and below it there is the curved face covering. The baffle plate in front and the vibration board can both be rollingly fixed on the shell of the cotton basket. On the vibration board, several air hole are set on it, and the board is linked with the swinging machinery. Meanwhile, the cotton-outgoing roller is set below the baffle plate in front and the vibration, and the mobile cotton board is fixed below the cotton-giving roller. The cotton-giving electric engine drives the cotton-giving roller while the The cotton-cutting electric engine drives the linter gin and the swinging machinery. The power of the cotton-outgoing roller is offered by the cotton carding machine. As it adopts the mechanical vibration to realize homogeneously giving the cotton, the structures are easy, economic and practical.

The invention discloses an adjustable-pressure type pressure-stabilizing nozzle, and relates to the technical field of nozzles. The adjustable-pressure type pressure-stabilizing nozzle comprises a shell, a liquid supply joint and a spraying head, wherein the liquid supply joint and the spraying head are formed by the shell; a rectifying chamber which communicates with the spraying head and a liquid inlet chamber which communicates with the liquid supply joint are also formed by the shell; a diameter-varied pipe section which has a structure of a contracted middle part and expanded front and rear parts and is formed by the shell is positioned between the liquid inlet chamber and the rectifying chamber which is arranged at the front end of the liquid inlet chamber; the shell is equipped witha separate pressure regulation chamber which is formed in the rear part of the liquid inlet chamber; the nozzle also comprises the shell which penetrates through the pressure regulation chamber and the liquid inlet chamber as well as between the pressure regulation chamber and the liquid inlet chamber, and a control rod which finally extends to the junction of the diameter-varied pipe section andthe liquid inlet chamber; and the control rod can be moved back and forth in the shell, and a pressure regulation process and a pressure stabilizing process of the nozzle can be realized through front and back movement of the control rod. The adjustable-pressure type pressure-stabilizing nozzle disclosed by the invention has a function of accurately regulating an ejection pressure ratio, and canensure that the pressure of flow filed in the nozzle is stable and can be regulated, so that the stability of the ejection flow of the nozzle is improved; and moreover, the nozzle also has an atomization enhancement function, and thus, the working quality of jet flow is improved.

A rotary engine with double rows of pistons belongs to the field of power machinery and consists of a spindle (1), two symmetrical opposite elliptical track groove discs (2), two symmetrical air exhaust double-layered sleeves (3), double-T-shaped rolling connecting rods (4), a bidirectional cylindrical rotating cylinder (5), turning gears (6), gear shafts (7), crank connecting rod piston type single-cylinder engine heads (8), pistons (9), piston rod racks (10), a cylindrical shell (11) and the like. Two or four or a plurality of even-number engine heads (8) are respectively symmetrically mounted on two side surfaces of an engine head tray (12) around centers of the two side surfaces, so that a rotary engine head assembly with double rows of pistons is formed; two rolling connecting rod bearings (18) are inserted into two symmetrical opposite elliptical track grooves (19); and the two piston rod racks (10) and two vertical rod racks (20) are respectively meshed with the two turning gears. The rotary engine is simple and compact in structure, long in service life, stable in running and low in vibration and noise, is high-efficiency, energy-saving and emission-reduction, not only can be made into a gasoline engine, but also can be made into a diesel engine, and is applicable to various types of fuels.

The invention discloses a processing method for antifouling melt spinning for a far-reaching-sea net cage or a floating-rope surrounding net. The processing method is characterized by including the steps that UHMWPE powder, nanometer Cu powder, HDPE powder, silicone powder, antioxidant B225, assistant antioxidant DLTP, hydroxy stearic acid, nanoscale white carbon black, nanoscale kieselguhr, nanoscale aedelforsite, ethylene-vinyl acetate copolymer and turpentine assistant are weighed in the formula, then premixed to be poured into a high-speed kneading pot and subjected to high-speed kneading, and a blending-modification UHMWPE material is obtained; the blending-modification UHMWPE material is belted and extruded through a double-screw extruder, the extruded substance is metered through a metering pump additionally arranged through a double-screw outlet and belted and extruded through a spinneret hole, the extruded primary raw silk is cooled and pre-drafted, the pre-drafted silk is subjected to heat setting, then tows are winded through a silk winding machine of a torque motor, and are subjected to silk dividing through a silk dividing machine, and the antifouling melt spinning for the far-reaching-sea net cage or the floating-rope surrounding net is obtained.

The present invention provides an agarose gel separation medium which is uniform in size, controllable and has high hydrophility and high porousness, and can be used for making separation and purification of biological active material. Its preparation method is characterized by that it adopts the following steps: (1) dissolving a certain quantity of agarose in a certain quantity of water under the heating condition to obtain agarose aqueous solution with a certain concentration, using pressure to make said aqueous phase by passed through microporous membrane and make it feed into oil phase to obtain emulsion drop with uniform size; and (2). transferringsaid emulsion into cooling device, under the condition of adopting programmed temperature-falling and slow-mechanically stirring process cooling to below 15 deg.C and making gel be solidified so as to obtain the invented agarose gel microspheres with uniform size.

An injection control apparatus includes an injection member; a drive section for injection; an injection-speed detection processing section which detects injection speed; an injection-pressure detection processing section which detects injection pressure; and a drive control processing section which drives the drive section for injection on the basis of the injection speed and the injection pressure to thereby perform pressure control before start of charging of a molding material into a cavity, and speed control after the start of charging of the molding material into the cavity. Since the drive section is driven on the basis of the injection speed and the injection pressure such that pressure control is performed before start of charging of a molding material into a cavity, and speed control is performed thereafter, the pressure of the cavity after the molding material has entered the cavity becomes stable and uniform.

The invention discloses an inner core mold for preparing a thin-wall arc composite pipe and a preparation method of the arc pipe. The inner core mold is a rigid inner core mold and is used for preparing the thin-wall arc pipe. The shape of the used inner core mold is a cylinder or a truncated cone, and the angle of the truncated cone is larger than 0 degree and smaller than or equal to 10 degrees.The straight inner core mold is used for replacing an arc inner core mold in the prior art for preparing the arc composite pipe; on one hand, through the adoption of the inner core mold, a pipe coiling machine can be used for carrying out prepreg coiling, and production efficiency is improved; and on the other hand, the straight inner core mold is adopted, prepreg laying is more convenient, it can be ensured that the prepreg laying angle meets the design requirement of the overall layer angle of the arc pipe, prepreg lap joint is reduced, layer integrity is guaranteed, and therefore the performance of a prepared pipe fitting is more excellent.

The invention provides a die leakage detection device which includes a waterway mechanism, an air channel mechanism, a three-way connection mechanism and a die connection hole connection pipe. The waterway mechanism, the air channel mechanism and the die connection hole connection pipe are connected with one way of the three-way connection mechanism. The waterway mechanism includes a water inlet pipe and a waterway switching valve. The air channel mechanism includes an air supplying pipe, an air channel switching valve, an air supplying device and an air channel pressure regulating device. The die connection hole connection pipe is connected with a die channel. The thee-way connection mechanism is a tee joint. The air channel pressure regulating device is a pressure gauge. The air channel pressure regulating device includes a pressure gauge and an air filter. The tee joint is a pipe connection part made of a PVC material or an iron material. The die leakage detection device is easy to operate and capable of reducing manual cost; detection water pressure is adjustable and even and stable so that a problem that the pressure is unstable because of manual operations so that leakage points are not obvious is solved and thus tiny leakage points are easier to find and the leakage points can be found more timely and accurately; and the die is corrected according to the leakage points so that efficiency of leakage point detection is improved.

The invention belongs to the technical field of deformation body mechanical testing, and particularly relates to a direct shear test device and method based on an unloading effect. The device comprises a shearing box, a top plate, an air bag, a pressure transmission pad, a fixing device, a water absorption mechanism, an air inlet pipe and a moving mechanism; the shearing box is composed of an upper box and a lower box, the upper box is of a rectangular frame structure with neither a cover nor a bottom, the lower box is of a rectangular box-shaped structure without a cover, and the upper box is connected onto the lower box; the top plate is connected to the upper box; the air bag, the pressure transmission pad and the water absorption mechanism are sequentially arranged under the top plate from top to bottom; the fixing device is fixedly connected to the outer side wall of the upper box; the air bag is communicated with an air inlet pipe penetrating through the side wall of the upper box; and the shearing box is placed on the moving mechanism. Normal force is provided by the air bag, and pressure application is more uniform. According to the device, direct shearing under the unloading condition is considered, unloading is also achieved through the air bag, unloading can be smoother instead of instantaneous unloading, and the device better conforms to engineering practice.

The invention discloses a hydraulic type processing clamp for a smart phone antenna module. The hydraulic type processing clamp for the smart phone antenna module comprises a left support, a right support, a fixing plate, a locating plate, chucks and pressure mechanisms. The two ends of the fixing plate are fixedly connected with the left support and the right support correspondingly. The locatingplate is fixedly connected with the fixing plate. A hydraulic oil hole communicates with T-shaped blind holes. A guide strip is vertically arranged, and the two ends of the guide strip are fixed to the outer side faces of a left installation beam and a left base plate. A rack is vertically arranged and is in contact connection with the inner surface of the guide strip. A sliding block is connected with the guide strip in a clamped manner through a vertical clamping groove and is fixedly connected with the rack. A plate jacking air cylinder is installed on the upper surface of the left base plate, and the upper surface of a push rod of the plate jacking air cylinder is fixedly connected with the lower surface of one end of a push block. The other end of the push block is fixedly connectedwith the sliding block. According to the hydraulic type machining clamp for the smart phone antenna module, force acts on the piston rod in a hydraulic manner, and through the chucks and locating convex blocks at the tail end of the piston rod, materials to be machined are clamped and fixed; and compared with a pneumatic manner and an electric manner, the hydraulic manner can provide a larger pressure, and the pressure is stable and uniform.

The invention discloses a telescopic force-applying pipe wrench. The telescopic force-applying pipe wrench comprises a fixed wrench body, a movable wrench body, a wrench handle and a force-applying pipe, wherein the movable wrench body is installed on the front end of the fixed wrench body, the wrench handle is arranged on the back end of the fixed wrench body, the force-applying pipe is additionally installed on the tail end of the wrench handle, the L-shaped movable wrench body is installed above the fixed wrench body, a fixed jaw is arranged on the front end of the fixed wrench body, sunken arc surfaces are formed on the outside end surfaces of the fixed jaw, sawtooth grains are formed on the arc surfaces, and another fixed jaw is arranged on one end surface, which is opposite to the front end surface of the fixed wrench body, of the movable wrench body. According to the telescopic force-applying pipe wrench, the fixed jaws are arranged on the opposite surfaces of the fixed wrench body and the movable wrench body, the sunken arc surfaces are formed on the outside end surfaces of the fixed jaws, and the sawtooth grains are formed on the arc surfaces, so that the two fixed jaws can be preferably fixed to the outer side wall of the pipe after the two fixed jaws relatively move to approach, and slipping is avoided.

The invention discloses a mounting device for an ultrasonic heat meter reflector, which comprises a press punch, a down pressing device and a positioning device, wherein the down pressing device comprises a bottom plate, left and right guide columns fixed at two ends of the bottom plate, a pressing plate movably sleeving the guide columns and a pressing head arranged on the pressing plate; the positioning device comprises a base fixed with the bottom plate, guide sleeves fixed on the base, and left and right positioning columns located in left and right guide sleeves, upper end surfaces of the left positioning column and the right positioning column are inclined planes with the same inclination and in bilateral symmetry and corresponding to inclined planes of left and right reflectors in a pipe segment body. The guide structure of the guide column is adopted to guide the down pressure to be uniform and stable, the horizontally-symmetrical and accurately-fixed positioning column structure is arranged on the fixed base, a limiting structure with the inclined plane is arranged on the positioning column, the three structures are supported and collaborated mutually, and the accurate corresponding mounting problem of the reflection surface of the reflector can be solved.

The invention discloses a hemostasis device for department of cardiology. The hemostasis device comprises a main box body. Supporting legs are fixedly arranged on the bottom face inside the main box body, the top ends of the supporting legs are provided with a supporting plate, the upper surface of the supporting plate is fixedly provided with a self-locking nut, the self-locking nut is connected with a lead screw shaft through a thread pair in a matched mode, the left end of the lead screw shaft is connected with a gear through a key, the right end of the lead screw shaft penetrates through the right side face of the main box body to be connected with a hand-cranking wheel, the gear is connected with a rack in a matched mode, the back of the rack is fixedly connected with the front surface of a supporting strip, the lower end of the supporting strip penetrates through the supporting plate to be fixedly connected with the upper surface of a pressing block, the pressing block is located below the supporting plate, a spring is arranged below the pressing block, the bottom end of the spring is provided with a pressure sensing gasket, and the pressure sensing gasket is electrically connected with a pressure display through a processor. The hemostasis device can be pressed for a long time, the pressure is uniform and stable, the labor intensity of medical staff is relieved, and the whole device is simple in structure and convenient to operate.

The invention relates to high-precision automatic assembling and detecting equipment for an electric toothbrush handle shell. The high-precision automatic assembling and detecting equipment for the electric toothbrush handle shell comprises a rack. The upper surface of the rack is provided with a six-station rotary table, the part, located on one side of the six-station rotary table, of the rack is provided with a two-station swinging table, and the two-station swinging table is provided with a sealing ring charging mechanism. The six-station rotary table is of a circular structure, and six jigs which are the same in structure are evenly arranged along the circumference of the circular structure. The jigs and executing mechanisms arranged on the part, on the outer ring of the six-station rotary table, of the rack form six operation stations which are a handle body and button charging station, a glue dispensing and button assembling station, a sealing performance testing station, a sealing ring assembling station, a sealing ring pressure maintaining station and a finished product discharging station. According to the high-precision automatic assembling and detecting equipment for the electric toothbrush handle shell, automation of assembling production is achieved, and therefore the assembling precision is improved.