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 machining method for a steel cable for deep and blue fishery. The method is characterized in that UHMWPE powder, LLDPE powder, nanometer silver-loaded silicon dioxide antibacterial agent, white oil, silicone powder, hydroxystearic acid, antioxidant 1010, nanoscale kieselguhr, nanoscale wollastonite, antioxidant aid DLTP and ethylene-vinyl acetate copolymer are premixed and then poured into a high-speed kneading pot to be kneaded at a high speed, a UHMWPE composite material is melt and extruded through a twin-screw extruder, the extrudate passes through a metering pump additionally arranged on a twin-screw outlet to be melt and extruded from a spinning orifice, the extruded spun filament is cooled and predrawn, the predrawn filament is subjected to heat drawing, a filament rolling machine of a torque motor is used for rolling melt spinning beams after heat setting, a stranding machine is used for carrying out primary twisting on the melt spinning beam to obtain an S-twisted strand, and a three-strand twisting machine is used for processing three S-twisted strands into the Z-twisted three-strand steel cable for deep and blue fishery. The machining method can also be used in oceanographic engineering and trash holding engineering.

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 a rubber seal ring with a section seam. The rubber sealing ring comprises an annular seal ring substrate, the inclined section seam is arranged on the seal ring substrate, the seal ring substrate is cut off by the section seam, and the section inclination angle beta of the section seam is equal to 35 degrees-55 degrees. The bonding steps of the section seam are as follows: roughening, cleaning and air-drying the section seam; uniformly distributing heat vulcanization bonding agent on the section and drying; butting bevel end surfaces, then placing into a preheated vulcanization bonding die and exerting pressure on the two bevel end surfaces so as to enable the two opposite bevel end surfaces to be close to each other; heating and keeping for a certain period of time; and naturally cooling down to room temperature and then removing the die. The vulcanization bonding die for the section seam at least comprises an upper die plate and a lower die plate, wherein the upper die plate and the lower die plate are connected through an axial pressurization screw rod, a rubber seal ring cavity is formed between the upper die plate and the lower die plate which are mutually jointed, electric heaters and temperature measuring devices are arranged on the upper die plate and the lower die plate, and the temperature measuring devices are mutually electrically connected with a temperature controller.

The invention discloses a measurement device for a rock resistivity test and a special-purpose electrode pad thereof. An electrode pad is arranged between a holder and a rock core end surface. The electrode pad comprises a rubber pad and a circular pressing ring. One surface of the rubber pad is a spherical plump surface and the other surface is a flat surface. The spherical plump surface contacts with the rock core end surface. The flat surface is provided with the circular pressing ring. The circular pressing ring is provided with an external electrode. The rubber pad has a cavity and the cavity is filled with a liquid. The holder comprises a horizontal pushing rod. The horizontal pushing rod extrudes the electrode pad through an insulating separation plate. The horizontal pushing rod is installed on a base of the holder. A liquid is used as an elastic medium of the pad so that clamping forces on two end surfaces of the rock core are uniform and stable and it is avoided that rock core end surface sags and crests or poor flat treatment effects causes deficient contact between the rock core and the holder electrode so that resistivity test results are inaccurate.

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.

The invention provides a processing method of fibers for a grid type purse net fishing net. The processing method is characterized by comprising the following steps: pre-mixing UHMWPE (Ultrahigh Molecular Weight Polyethylene) powder, silicone powder, nano silicon dioxide, HDPE (High-density Polyethylene) powder, a nano titanium dioxide silver-loaded antibacterial agent, an antioxidant B225, hydroxystearic acid, nano-grade diatomite, nano-grade white carbon black, nano-grade wollastonite and an ethylene-vinyl acetate copolymer, which are weighed according to a formula, and pouring the mixture into a high-speed kneading pot and carrying out high-speed kneading to obtain a UHMWPE modified material; fusing and extruding the UHMWPE modified material through a double-screw-rod extruder; fusing and extruding an extruded product from a spinneret hole through a metering pump which is additionally arranged on a double-screw-rod outlet; cooling, pre-stretching and hotly setting extruded freshly formed filaments and winding a fiber bundle through a fiber winding machine which utilizes a torque motor; dividing the fiber bundle into fibers through a fiber dividing machine, so as to obtain the fibers for the grid type purse net fishing net.

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 hydraulic type clamp used for machining antenna brackets of a tablet personal computer. The hydraulic type clamp comprises a left supporting seat, a right supporting seat, a fixing plate, a locating plate, a clamping head and a pressure mechanism; the two ends of the fixing plate are fixedly connected with the left supporting seat and the right supporting seat correspondingly; the locating plate is fixedly connected with the fixing plate; a hydraulic oil hole is formed in one side surface of the pressure mechanism; one face, provided with clamping teeth, of a rack faces an arc-shaped clamping claw, the arc-shaped clamping claw is installed on the lower surface of a movable plate, and the front end of the arc-shaped clamping claw is embedded in the clamping teeth of the rack; a vertical clamping groove is formed in the inner side surface of a sliding block, and the sliding block is connected with a guiding strip through the vertical clamping groove in a clamping mode and is fixedly connected with the rack; and the lower end of a limiting screw rod penetrates through a pushing block from top to bottom and then is embedded in a center through hole of a pushing rod of a top plate air cylinder, and the limiting screw rod is sleeved with a limiting nut. According to the hydraulic type clamp used for machining the antenna brackets of the tablet personal computer, the stroke of the top plate air cylinder can be limited by arranging a limiting stud and the limiting nut, so that the rising stoke of the movable plate is in accordance with need, each rising stroke of the movable plate is fixedly consistent, and the machining precision is ensured.

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.

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 relates to the technical field of the film blowing machine, in particular to a TPU film blowing machine provided with an additional feeding machine, which comprises a material passage ofthe film blowing machine, a material feeding opening and a material hopper, wherein the top of the material passage of the film blowing machine is communicated with the material feeding opening, thematerial feeding opening is connected with the feeding machine which increases the material feeding pressure, the material hopper is communicated with the feeding machine, and the feeding machine comprises a push screw rod and a motor. The invention increases the material feeding pressure by the feeding machine, scraps and reclaimed materials can be used as raw materials for recycling, the pressure is uniform and stable, more TPU pulverized materials can be added, the quality and the property of a product are not influenced, the use of the raw materials is reduced, the use rate of the raw materials can reach more than 99.5%, and the cost is lowered.

The invention relates to smelting mechanical equipment. A sliding mechanism controlling ladle molten steel casting flow rate comprises a main frame, a slide block and a support, wherein the slide block is matched with and slide-mounted in a slide block frame of the support on the lower end of the main frame; frame bodies on two sides of the splicing surface of the main frame and the support are respectively provided with positioning mechanism which are matched with each other; the main frame, the slide block and the support are connected into a whole through elastic tension elements; two sides inside the slide block frame of the support are symmetrically provided with two guide rails respectively; a pulley intermediate steel sheet is arranged in the middle of two guide rails on each side; one corresponding end of the guide rails on two sides is provided with a pulley stopper; after the pulley on the other end of the slide block pushed by a pushing rod of an external hydraulic cylinder drops on the position of the pulley stopper, the pulley on the end is just in the pulley intermediate steel sheet. The pin slide board can be changed and operated conveniently, is better matched with the requirement of ladle continuous casting, improves the safety use coefficient and service life of the sliding mechanism, and is beneficial to new technology of steel-making continuous casting.

The invention discloses an under-consolidated remolded soft clay sample preparation device. Round clamping grooves for clamping an outer mold and an inner mold are formed in a base and a top cover; the outer mold and the inner mold are connected in a sleeving manner and are clamped into the round clamping grooves of the base and the top cover respectively; at least three through holes are formed in the top cover around the outer mold; thread connecting holes, corresponding to the through holes, are formed in the base; screw rods penetrate through the through holes and are in thread connectionwith the thread connecting holes, and the outer mold and the inner mold are fastened; loading holes are formed in parts, aligned to the inner mold and the outer mold, on the top cover; at least threesupporting rods, which are matched with annular loading grooves, are arranged at the lower part of a loading bracket; the supporting rods are inserted into the annular loading grooves; a load plate isarranged at the upper ends of the supporting rods; annular water discharging plates are lined at the upper and lower ends of an annular soil sample between the outer mold and the inner mold; the water discharging plates are provided with water discharging through holes; a water discharging hole channel is arranged on the base. The under-consolidated remolded soft clay sample preparation device disclosed by the invention can be used for effectively simulating a one-dimensional compression and consolidation state of under-consolidated soil in a deposition process.

The invention provides a carbon fiber product forming mold and method. The carbon fiber product forming mold comprises an upper mold, a lower mold, multiple heating pipes and silica gel pieces; the silica gel pieces are bonded on the inner side wall of the upper mold or the lower mold; the upper mold and the lower mold are matched in size, and are closed to form a forming cavity for forming carbonfiber prepreg preformed bodies; multiple through holes parallel to the inner side walls are arranged on the upper mold and the lower mold in a penetrating mode; the multiple through holes are distributed at equal intervals, and the distances between the adjacent inner side walls are the same; and the multiple heating pipes are correspondingly arranged in the multiple through holes one to one. Thecarbon fiber product forming mold has the following beneficial effects: the carbon fiber prepreg preformed bodies are suffered from uniform and stable pressure to improve the pinhole defects on the surfaces of carbon fiber products.

The invention provides a central axle housing and semi-axial casing pipe assembly positioning pin pressing machine. The pressing machine includes a rack; a bed is arranged on the rack; the bed and the rack are slidingly connected; a positioning mechanism and a pressing mechanism are arranged on the bed; the positioning mechanism includes an axial positioning mechanism and a radial positioning mechanism; the radial positioning mechanism includes two V-shaped positioning plates; the axial positioning mechanism includes a thin oil cylinder and an axial limiting plate, and the thin oil cylinder is horizontally fixed; a push rod is arranged on a piston rod of the thin oil cylinder; the push rod and the axial limiting plate are arranged coaxially; the pressing mechanism includes a first hydraulic cylinder, a second hydraulic cylinder, a third hydraulic cylinder, and a fourth hydraulic cylinder; the first hydraulic cylinder and the second hydraulic cylinder are vertically arranged on the lower end of the bed; the third hydraulic cylinder and the fourth hydraulic cylinder are vertically arranged on the upper end of the bed; the fourth hydraulic cylinder and the second hydraulic cylinder are arranged correspondingly; the third hydraulic cylinder and the first hydraulic cylinder are arranged correspondingly; lower positioning sleeves are arranged on piston rods of the first hydraulic cylinder and the second hydraulic cylinder; and upper positioning sleeves are arranged on piston rods of the third hydraulic cylinder and the fourth hydraulic cylinder. The pressing machine is good in pressing quality, can reduce the working intensity of workers, and can improve the assembly efficiency.

The invention discloses a pressure-adjustable type pressure-stabilizing nozzle, and relates to the technical field of nozzles. The pressure-adjustable type pressure-stabilizing nozzle comprises a shell, a liquid supply joint and a nozzle, wherein the liquid supply joint and the nozzle are formed by the shell; the shell also can form a rectifying cavity which communicates with the nozzle and a liquid feeding cavity which communicates with the liquid supply joint; a diameter-varied pipe section with a contracted middle part as well as expanded front and rear parts, which is formed by the shell,is arranged between the liquid feeding cavity and the rectifying cavity which is formed in the front end of the shell; the shell can form a separate pressure regulating cavity at the rear of the liquid feeding cavity; the nozzle also comprises a shell which penetrates through the pressure regulating cavity and the liquid feeding cavity and penetrates between the pressure regulating cavity and theliquid feeding cavity, and finally extends to a control rod which is positioned at an intercrossing part of the diameter-varied pipe section and the rectifying cavity; and the control rod can be movedback and forth in the shell, and a pressure regulation process and a pressure stabilizing process of the nozzle can be realized through back-and-forth movement of the control rod. The nozzle disclosed by the invention has a function of automatically and accurately regulating injection pressure ratio, and has the advantages that the stability and adjustability of the pressure of a flow field in the nozzle can be ensured, and the stability of injection flow of the nozzle is improved; and moreover, the pressure-adjustable type pressure-stabilizing nozzle also has an atomizing enhancement function, so that the quality of jet flow works is improved.

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 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.