595 results about "Small hole" patented technology

The invention discloses a linkage device, an integrated main control unit and an ABS brake system.The linkage device comprises a valve body, a piston assembly and a one-way sealing element, the valve body comprises a first cavity, a second cavity and a second oil way, and the first cavity is communicated with the second oil way and the second cavity; the piston assembly slides in the first cavity in a reciprocating mode along the axis, part of the piston assembly can enter the second oil way, a gap is formed between the piston assembly and the valve body, a plurality of small holes are evenly formed in the side wall of the piston assembly, the piston assembly is provided with an elastic element, and the one-way sealing piece is arranged in the annular groove of the valve body and located on the outer side wall of the piston assembly. The one-way sealing piece is in sliding connection with the piston assembly, and the one-way sealing piece and the small holes jointly serve as a structure for controlling opening and closing of the internal liquid channel. The linkage device solves the problems that in the prior art, a one-way oil seal of a linkage device is prone to failure, the pressure relief hole diameter is too small, and then the efficiency and safety of a braking system are affected.

The application relates to the technical field of pyrophyllite processing, in particular to a crusher for pyrophyllite processing, which comprises a whole support support, the inner wall of the whole support support is provided with a crushing cylinder main body, and the crushing cylinder main body is arranged in an inclined mode. The crusher for pyrophyllite processing is characterized in that a hydraulic device brings a ring-shaped pressing plate to move downward to press the crushing plate group, the adjacent crushing plates in the crushing plate group can compress the return springs in the corresponding two crushing plates, the distance between the two adjacent crushing plates is reduced, and the pyrophyllite between the two crushing plates is crushed, the crushed pyrophyllite gradually falls through the first through hole, the second through hole, the third through hole and the fourth through hole with smaller and smaller hole sizes, the pyrophyllite pieces containing other impurities which are larger than the hardness of the pyrophyllite cannot be completely crushed due to the large hardness, therefore, the pyrophyllite pieces containing impurities are left in the corresponding spaces of the crushing plate group according to the volume, and the crushed pyrophyllite is discharged through the discharge port.

The present application relates to a kind of high temperature high pressure formation fluid containing large hole fracture plugging simulation device, including nitrogen bottle, liquid storage tank, simulation wellbore, heating insulation cover, back pressure valve and hole fracture isolation plate, there is inner cylinder in upper kettle body, there is simulation leakage layer in inner cylinder, upper kettle body and lower kettle body are connected by flange, hole fracture isolation plate is set between upper kettle body and lower kettle body, back pressure valve is set at the place close to hole fracture isolation plate of lower kettle body, heating insulation cover is set on the outer wall of upper kettle body and lower kettle body.The simulation method for high temperature high pressure formation fluid containing large hole fracture plugging using the above device, including: plugging slurry is discharged or passed through formation fluid and then enters simulation leakage layer;The plugging effect of conventional drilling fluid on small hole fracture leakage layer is judged by the pressure difference of upper kettle body and lower kettle body;The breakthrough pressure of sealing zone is obtained by the pressure difference between upper kettle body and lower kettle body after sealing zone is formed by solidified cementation type plugging slurry.The present application is in line with actual downhole, easy and fast to operate, provides platform and means for the plugging research of formation fluid containing large hole fracture leakage layer.

The invention discloses a feeding mechanism of an automatic cold header for machining piston pins. The feeding mechanism comprises a main machine (1), a feeding mechanism body (20) is arranged on the front portion of the main machine (1), the feeding mechanism is connected with an iron wire frame (2) through an iron wire, and a discharging mechanism (3) is arranged on one side of the main machine (1). The feeding mechanism body comprises a base (4), fixed wheels (5) are arranged on one side of the base (4), and moving wheels (6) are arranged on the other side of the base (4). Side bases (7) are arranged on two sides of the base (4), sliding bases (8) are arranged on the inner sides of the side bases (7), and the contact surfaces of the sliding bases (8) and the side bases (7) are in sliding fit. The moving wheels (6) are arranged on the upper sides of the sliding bases (8), a threaded barrel (9) is fixed below the sliding bases (8), a threaded column (10) is arranged in the threaded barrel (9), a bearing pedestal (11) is arranged at one end of the threaded column (10), a rotating ring (12) is fixed to the other end of the threaded column (10), the rotating ring (12) is provided with a circle of small holes (13), and a rotating handle (14) is arranged in one small hole (13) in an embedded mode.

The invention provides a high-quality machining method for a small hole with a large depth-diameter ratio and nearly zero taper. Comprising the following steps: firstly, processing a conical bottom hole by using a femtosecond laser rotary cutting processing method, calculating the conicity of the bottom hole, selecting a proper light knife, calculating laser flux distribution on a flux line in a hole radius direction, determining a forming process of an ablation curve when an inclined laser beam irradiates an inclined hole wall of the bottom hole, and establishing an ablation curve prediction model; according to the hole diameter and the hole depth, proper machining parameters are selected, and the small hole with the large depth-diameter ratio and nearly zero taper is machined. In order to solve the problem that the taper is difficult to eliminate in the machining process of the large-depth-diameter-ratio small hole of the difficult-to-machine material, based on the femtosecond laser rotary cutting machining technology, the taper area material of the taper hole is eliminated by regulating and controlling the inclined light beam, the nearly-zero-taper formed hole is machined, the hole wall quality after femtosecond laser cold machining is high, and the machining precision is high. Theoretical and technical supports are provided for high-quality machining of large-depth-diameter-ratio nearly-zero-taper small holes of materials difficult to machine.

The application discloses a solid droplet-based drag reduction ball preparation and testing method, and relates to the underwater drag reduction technical field.The preparation method comprises the following steps: performing decontamination treatment on the surface of a steel ball, configuring a PDMS solution and pouring the PDMS solution into a polytetrafluoroethylene mold with small holes with different curvature radii, performing vacuum degassing and solidification, and then peeling off to obtain solid droplet structures with different curvature radii, and bonding the solid droplet structures to the bottom of the steel ball.Through the regulation and control of the solid droplet curvature radius (2.5-10.8 mm) and the water entry speed, the high-speed camera technology is used to observe the change law of the sputtering crown formation, air entrainment and air cavity closure mode in the water entry process, the quantitative analysis of the underwater air cavity volume and the drag coefficient is combined, and the influence of the solid droplet curvature radius on the air cavity shape and the drag reduction performance is verified.The solid droplet structure optimizes the air film capture efficiency, significantly reduces the blunt body pressure difference resistance and the friction resistance, and the preparation process is simple, stable and suitable for the development of the underwater vehicle drag reduction technology.

The application provides an anti-blocking device for a liquid propulsion system and an assembling method, comprising a conical top, a first connecting ring, a second connecting ring, a third connecting ring and connecting columns; the first connecting ring, the second connecting ring and the third connecting ring are sequentially arranged and connected through the connecting columns; the first connecting ring is connected with the conical top on the side away from the second connecting ring; the conical top, the first connecting ring, the second connecting ring, the third connecting ring and the connecting columns are all provided with a hollow structure around. The application can filter out large and sheet metal excesses in advance, prevent the large and sheet metal excesses from blocking the filter and other small holes arranged downstream of the pipeline, solve the problem of blocking the flow channel due to the accidental falling of the large and sheet metal excesses in the upstream pipeline in a small-diameter pipeline space system, and greatly reduce the system failure risk.

The utility model relates to bolt forging technical field discloses a kind of forging devices for T bolt production, including base, bracket is fixedly installed on base outer side, bracket top is fixedly installed with top cover;Several groups of uniform arrays of grooves are opened in base, and conical body is fixedly installed in groove inner bottom;Impact block is placed in bracket inner side top, and impact block has three groups, and impact block top both sides are fixedly installed with support rod.The utility model is provided with impact block, multiple groups of grooves and electromagnet, multiple groups of T bolts can be inserted and positioned in groove, after being placed, electromagnet can be closed, iron block cancels limit, support rod and impact block quickly move down, and T bolt is impacted, cooperate with the conical body of lower side, the processing of T bolt bottom end fixed small hole can be realized, compared with existing mode, not only save labor, and more efficient.

The utility model discloses an energy-saving aluminum alloy door and window convenient to clean and insulate, which comprises an aluminum alloy outer frame and an aluminum alloy inner frame, the cross section of the aluminum alloy outer frame is L-shaped, double-layer toughened glass is fixed inside the aluminum alloy inner frame, a fixing block is fixed at the top of the side edge of the aluminum alloy inner frame, and the fixing block is fixed at the top of the side edge of the aluminum alloy inner frame. The fixing block is slidably sleeved with a first bolt, the first bolt is connected with the aluminum alloy outer frame through threads, a connecting block is hinged to the bottom of the side edge of the aluminum alloy inner frame, the connecting block is rotatably sleeved with a second bolt, a limiting block is fixed to one end of the second bolt, and a stepped hole is formed in the side edge of the aluminum alloy outer frame. A large hole of the stepped hole is an unthreaded hole, and a small hole of the stepped hole is a threaded hole. The aluminum alloy inner frame can be turned over, so that the outer side face of the double-layer tempered glass can be conveniently cleaned, the double-layer tempered glass does not need to climb to the outside, safety is good, and the aluminum alloy inner frame is rotated to be vertical after cleaning is completed.

The application relates to a steel truss bridge thick plate residual stress detection and repair integrated construction device, and belongs to the technical field of weld detection, which comprises a frame body, a drilling device, a strain gauge and a strain acquisition and analysis instrument are arranged on the frame body, a bearing disc is arranged on the frame body, the bearing disc slides along the vertical direction relative to the frame body, meanwhile, the bearing disc is also rotationally connected with the frame body, and the bearing disc rotates relative to the frame body; a polishing disc and a filler box are further arranged on the frame body, the polishing disc, the filler box and the drilling device are all located below the bearing disc, the polishing disc is rotationally connected with the bearing disc and rotates relative to the bearing disc; the filler box and the drilling device are fixedly connected with the bearing disc, the filler box is filled with metal filler, and a feeding pipe group for conveying the metal filler from the filler box to the outside is connected to the filler box, the application has the effect of timely plugging the residual small holes after the residual stress of the steel is detected, and the effect of repairing the steel is achieved.

The utility model discloses a rear formula flower basket wall connecting piece belongs to wall connecting piece technical field, including fastener, flower basket cover, middle hexagonal double -end screw rod and expansion pipe, the fastener includes fastener body, be equipped with connecting screw rod on the fastener body, connecting screw rod is connected with one end screw of flower basket cover, the other end of flower basket cover is connected with one end screw of middle hexagonal double -end screw rod, the other end of middle hexagonal double -end screw rod is connected with expansion pipe. The utility model installs convenient, need not reserve hole and hole when wall body masonry, can directly in the existing wall body or concrete structure and set up small hole and fix, save the time of work, simplify the complex operation process of traditional frame pipe and embrace the beam or the constructional column, effectively promote construction efficiency, reliable connection, through the stable connection of expansion pipe extrusion fixation realization scaffold and structure, strengthen operation security, strong applicability is applicable to different height wall body and various structure types, has extensive engineering application value.

The utility model relates to the technical field of plastic particle screening, in particular to a screening mechanism of a plastic granulator, which comprises a bottom plate and a screening box, an inclined socket is clamped on one side of the screening box, a small-hole screen plate, a medium-hole screen plate and a large-hole screen plate are respectively clamped on one side of the inclined socket, and two side plates are fixedly connected with one end of the screening box. According to the plastic particle blanking device, the baffle is moved to the position between the small-hole sieve plate and the middle-hole sieve plate, then plastic particles are intercepted by the blocking plate and roll downwards, the blanking speed of the plastic particles is reduced, the time of the plastic particles staying on the small-hole sieve plate is prolonged, and the plastic particles are prevented from falling off from the middle-hole sieve plate. According to the plastic particle screening mechanism, plastic particles can be better screened through the small-hole screening plate, then the plastic particles can be continuously turned over through the two transverse plates on the driven rotating rod, it is ensured that the plastic particles flow and are fully and comprehensively screened, it is avoided that the plastic particles are accumulated at one position all the time, screening work is accelerated, and the production efficiency of the screening mechanism is improved.

The invention relates to the field of stone machining, in particular to stone machining equipment and a stone machining method. Stone machining equipment comprises two side plates, the two side plates are arranged front and back, the number of the long wheels is multiple, and the front end and the rear end of each long wheel are rotationally connected to the two side plates correspondingly. The stone machining method comprises the steps that S1, plate-shaped stone is placed on the upper sides of the multiple long wheels; s2, the two T-shaped frames slide, and the multiple short wheels on the front side and the multiple short wheels on the rear side abut against the front side and the rear side of the plate-shaped stone correspondingly; s3, the plate-shaped stone is slid left and right, and the position needing to be punched is placed below the annular frame; s4, a pressing ring and a rubber ring are pressed on the punching position of the plate-shaped stone; s5, the multiple grinding cylinders are adjusted to be in an expanded or contracted state, the multiple grinding cylinders are driven to rotate to tangential the stone, and a plurality of small holes are cut in the stone; and S6, the multiple grinding cylinders are driven to rotate with the axis of the annular frame as the axis, and multiple small holes are cut in the stone again.

The application discloses an engine connecting rod small head elliptical horn hole detection device and method, which comprises a supporting plate and a detection assembly; the detection assembly comprises a small hole detection head, the bottom of the small hole detection head is installed at the upper end of a first lifting assembly; a profile gauge needle in an L shape with a profile gauge is installed in the inner cavity of the small hole detection head, one end of the profile gauge needle is installed at the upper end of the first lifting assembly, and the other end penetrates through the small hole detection head and elastically abuts against the inner wall of the elliptical horn hole of the connecting rod to be detected; four air channels are arranged in the small hole detection head, one end of the air channels extends to the bottom of the small hole detection head; one end of the two air channels opposite in the radial direction is connected with the air outlet pipe of the gas-electricity meter through a tee joint, and the other end extends to the side surface of the small hole detection head respectively. The application has the advantages that the long and short axis sizes of the elliptical hole and the accurate measurement of the horn hole profile line can be simultaneously detected through one-time clamping, and the detection precision and the detection efficiency are greatly improved.

The utility model discloses a stamping die for punching a coaxial small hole opposite to a large hole of a square tube, which relates to the technical field of stamping dies, comprises an upper die set and a lower die set, and is characterized in that the upper die set comprises a die handle, a retaining seat is connected to the die handle through a bolt, and a male die is mounted in the retaining seat; the lower die set comprises a base, a female die is arranged on the base, the female die can be inserted into a large hole of the square tube and achieve positioning for machining of a small hole, and the height of the female die is equal to the sum of the distance and the wall thickness of the two inner walls of the square tube. The female die is provided with an insertion cavity along the axis direction, the insertion cavity can accommodate the diameter of the male die, and the depth of the male die inserted into the insertion cavity is greater than the wall thickness of the square tube. The female die is arranged on the base, so that the structure of the existing punching die is simplified, and more importantly, the female die can play a positioning role in processing a small hole; and the concentricity of the large hole and the small hole is ensured.

The invention discloses a method for simply and rapidly installing a dynode of an electron multiplier, and belongs to the field of electron multiplier assembly. According to the method, extra tools are not needed, and only three long screws and a pair of pointed tweezers need to be additionally used. According to the method, the problem that time and labor are wasted when the ceramic plate of the multiplier and nine dynodes are folded and aligned is solved, and the installation of the dynodes can be effectively accelerated. During installation, the three long screws are inserted into the through holes of the ceramic plate bottom plate, then the screws are sleeved with the limiting stainless steel cylinders respectively, then the nine dynodes and the collecting plate are sequentially installed on the ceramic plate bottom plate, then the ceramic plate top plate is sleeved with the three screws, the hexagonal studs are screwed, and the ceramic plate top plate is installed on the ceramic plate bottom plate. And the distance between the top and bottom ceramic plates is about 4mm longer than that of the limiting stainless steel cylinder. The nine dynodes and the collecting plate are sequentially stirred through pointed tweezers, the upper feet of the dynodes and the collecting plate enter the small mounting holes corresponding to the top plate of the ceramic plate, the lower feet of the dynodes do not leave the small mounting holes corresponding to the bottom ceramic plate, and the top ceramic plate and the bottom ceramic plate are tightened after completion. And the long screws are replaced by the original screws of the multiplier in sequence, and the dynode is assembled.

The utility model discloses a customizable sticker seal which comprises a main body fixing piece, a fixed seat, a base material layer, a movable seat, a containing bin and an elastic piece, the movable seat is arranged in an inner cavity of the main body fixing piece, the fixed seat is arranged on the surface of the movable seat, the containing bin is arranged on the surface of the fixed seat, the base material layer is arranged at the lower end of the movable seat, and the elastic piece is arranged on the base material layer. An elastic piece is arranged in an inner cavity of the fixing base, a petal bin is arranged on the surface of the body fixing piece, a concave buckle is arranged in the inner cavity of the body fixing piece, a multifunctional barrel hole is formed in one side of the fixing base, and a fixing rail and a sliding rail are arranged on the two sides of the fixing base. The inverted buckle at the bottom of the doll is aligned with the small hole in the top to be pressed and locked through the concave-convex points, so that each user has the desired doll, rotates and pulls out of the containing bin, puts the base material in the direction containing the glue points into a new bin and locks after closing, the petal bin arranged at the bottom of the main body fixing piece is used for preventing skidding, the elastic force of the elastic piece is moderate, and the operation is smooth.

The application provides an electric spark machining method for a deep and narrow ventilation groove of a guide vane and the guide vane, and the method comprises the following steps: first, electric spark high-speed small-hole machining is adopted, a plurality of bottom holes are machined on the guide vane to be machined by using a first electrode; then, a second electrode is made, the shaped electrode and corresponding clamping auxiliary components are installed to an electric spark forming machine; electric spark forming oil immersion machining is adopted, the lateral oil flushing of the guide vane to be machined is increased, the machining parameters of the electric spark forming machine are set, and the deep and narrow ventilation groove is machined. The application pre-machines part of the bottom holes in the position to be machined in the guide vane, and the method of electric spark forming machining of the shaped groove is adopted to machine the deep and narrow ventilation groove on the plurality of bottom holes, so that the oil flushing and chip removal conditions during the forming machining of the deep and narrow ventilation groove are improved, the electric spark forming machining efficiency and surface machining quality of the guide vane are improved. Moreover, the application can be applied to the machining of various deep holes, grooves and flow channels, and has good applicability.

The utility model provides a small crispy meat pepper numb flavor seasoning powder processing and screening device, which belongs to the technical field of seasoning processing and comprises a bearing mechanism, a mounting frame, a connecting seat fixedly mounted on the side wall of the mounting frame and an auxiliary component arranged on the side wall of the mounting frame. The vibrating mechanism comprises a mounting base, a screening shell fixedly mounted on the side wall of the mounting base, a connecting block fixedly mounted at the bottom of the screening shell, a vibrating motor fixedly mounted on the side wall of the connecting block and a screening assembly arranged in an inner cavity of the screening shell. Through the arrangement of the bearing mechanism and the vibration mechanism, the efficient and accurate screening process is achieved, the uniformity and stability of vibration in the screening process are ensured through the communication of the feeding hopper and the discharging opening and the cooperation of the installation shell, the fixing base and the spring, and therefore the screening efficiency and the product quality are improved; a large-hole screen and a small-hole screen in the screening assembly are used for separating impurities and coarse materials respectively, and the fineness and flavor consistency of final products are guaranteed.

A tabletop torch comprised of an upright wooden log with a upwardly facing top surface that has a plurality of wick bores drilled vertically into it is described. The wick bores have wicks received in them through which to ignite and sustain the flame of the torch. Additionally the top surface is concave and includes a plurality of smaller shallower holes drilled downwardly across its surface. These holes along with the wick bores and the concave surface serve as reservoirs for candle wax and as the wax therein and on ignites the individuals flames from the wick join into a single larger flame.

The utility model relates to a small hole internal thread grinding head which comprises a base, a sleeve, a straight grinding rod and a grinding head body, the base is installed at the rear end of the sleeve, a bent section is formed at the front end of the sleeve, the straight grinding rod is rotatably installed in the straight section of the sleeve through a bearing unit, one end of the straight grinding rod extends to the base, and the other end of the straight grinding rod extends to the bent section of the sleeve. One end of the straight grinding rod is connected with the bent section, the other end of the straight grinding rod extends to the bent section to form a straight grinding rod bevel gear, and the grinding head is mounted on the bent section and is in transmission connection with the straight grinding rod. The utility model has the advantages that the speed of the grinding head can be improved by adopting the integrated sleeve for processing, and the oil injection port is additionally arranged outside the sleeve, so that the heat dissipation can be increased in the grinding process, and the higher grinding speed can be met.

The utility model relates to the technical field of electromagnetic valves, in particular to a two-position three-way electromagnetic valve. In the prior art, small holes need to be machined in the end socket, the machining difficulty is high, the machining efficiency is low, and the surface smoothness is difficult to control. According to the two-position three-way electromagnetic valve, a movable core iron is further arranged in a sleeve, a first valve port and a second valve port are formed in a double-hole pole, a fixed sealing block is arranged on the core iron, the first valve port and the second valve port in the double-hole pole are sealed by the sealing block, and the sealing block is communicated with an inlet connecting pipe; a small valve seat is mounted on the single-hole pole, a single-pole hole is formed in the small valve seat, and the single-pole hole is communicated with a first outlet connecting pipe through a second transition hole and a first transition hole; the coil C is powered off, the core iron is separated from the single-hole pole, the sealing block closes the first valve port, and the inlet connecting pipe is communicated with the first outlet pipe; the coil C is electrified, the core iron is attracted with the single-hole pole, and the inlet connecting pipe is communicated with the second outlet connecting pipe. According to the utility model, the structure is reasonable, the flow maximization and the minimum pressure difference in the valve cavity can be realized, the processing difficulty of the product is reduced, and the core iron acts reliably.

This invention relates to the field of punching die technology and discloses a punching die for a crash beam mounting plate, including an upper die and a lower die. A module is mounted on the bottom of the upper die via an elastic loading member. A punching head and punching small hole assemblies distributed on both sides of the module are mounted on the bottom of the module. Each punching small hole assembly includes an air vent. A cavity is formed within the module, and the cavity is divided into a first chamber and a second chamber by a partition. Two mounting areas are formed on the partition, and both mounting areas are equipped with air vents. This invention achieves simultaneous processing of the main hole and auxiliary small holes by providing detachable punching small hole assemblies on both sides of the punching head. Utilizing the linkage mechanism between the punching small hole assembly and the elastic air vent, a cooling airflow channel is automatically opened to cool the punching head in real time. By flexibly disassembling and assembling the punching small hole assembly to adjust the number of auxiliary small holes, the die becomes versatile, while simultaneously improving processing quality and die durability.

The utility model belongs to the technical field of telescopic supporting rods, and particularly relates to an anti-pinch telescopic supporting rod which comprises an inner pipe and an outer pipe, the outer pipe is arranged on the outer wall of the inner pipe, a handle seat is arranged above the outer pipe, the side edge of the handle seat is connected with a handle through a rivet, a center rod is arranged on the inner wall of a center hole of the handle seat, and the center rod is connected with the handle through a rivet. The outer wall of the center rod is sleeved with a lower compression spring and a fastening wrench, the center rod, the lower compression spring and the fastening wrench are installed in the handle base, a rivet at the end of the handle is arranged below the skid, the upper end of the inner pipe is fixedly installed in a hole in the lower portion of the handle base through the rivet, and a small hole is formed in the lower end of the inner pipe. And a double-end bayonet lock is arranged on the inner wall of the small hole. According to the anti-pinch telescopic supporting rod, force exerting is more convenient through the arc-shaped lines of the handle, wrenching is convenient due to the fact that the shape of the wrench is set, the protection piece on the upper portion of the handle base can protect the safety of an operator, fingers and other parts are prevented from being pinched and injured, and therefore the convenience of the telescopic supporting rod can be improved.

The application provides a precision integrated machining system and method for machining tangential hole type centrifugal micro nozzle, which comprises the following steps: firstly, rough turning the end face and the outer circle of the bar stock clamped by the spindle tool system, then machining the tangential micro hole by the tangential micro hole drilling system, machining the coaxial flow channel hole, the part end face and the outer circle clamping face by the spindle tool system, repeating the machining and feed, removing the burrs at the inlet and outlet of the tangential micro hole, then driving the secondary spindle chuck to clamp the outer circle clamping face, rotating the spindle and the secondary spindle synchronously, machining the remaining outer circle by the spindle tool system until the part is cut off from the bar stock, clamping the cut-off part by the secondary spindle chuck, machining the cut-off end by the secondary spindle tool and removing the machining burrs. The application has small error and high production efficiency compared with the traditional machining method.

The invention discloses a plastic bottle recycling device which comprises a workbench, an operation disc, bottle cap clamping mechanisms, a label removing mechanism and bottle body clamping mechanisms, the operation disc is rotatably arranged on the workbench, the four rotatable bottle cap clamping mechanisms are annularly distributed on the operation disc at equal intervals, and a small discharging hole penetrates through the center position of each bottle cap clamping mechanism. A feeding area, a label removing area, a bottle cap screwing area and a bottle cap falling area are sequentially arranged on the four sides of the workbench, bottle caps of plastic bottles face downwards and are clamped and fixed through a bottle cap clamping mechanism, the label removing area is provided with a label removing mechanism, the bottle cap screwing area is provided with a bottle body clamping mechanism used for clamping bottle bodies of the plastic bottles, and the bottle body clamping mechanism is rotatably arranged on the workbench. And a large blanking hole is formed in the position, in the bottle cap blanking area, of the workbench. The recycling device is small in occupied space and high in recycling efficiency.

The utility model relates to the technical field of special transportation operation equipment, in particular to a convertible control platform which comprises a bottom plate layer, a core plate layer, a lining plate layer and a panel layer which are sequentially connected. The bottom plate layer is provided with a large-hole negative-pressure opening and a small-hole negative-pressure opening, an air crossing area is correspondingly formed on the core plate layer, the lining plate layer comprises a bottom lining plate and a face lining plate, the bottom lining plate is provided with an air guide area, the face lining plate is provided with an air guide groove, and the face plate layer is provided with a large air suction opening array and a small air suction opening array; and the air suction port array, the air guide groove, the air guide area and the negative pressure area are communicated to form a large-hole adsorption passage and a small-hole adsorption passage. By adjusting the structure of the control platform, a large-aperture adsorption channel is provided to provide relatively large adsorption force, a small-aperture adsorption channel is provided to provide relatively soft adsorption force, and the adsorption force can be flexibly switched, controlled and adjusted in the using process. And not only can large articles be stably adsorbed, but also relatively light and soft small articles can be protected.

The invention provides a double-wall turbine blade large-depth-diameter-ratio film hole remelting-layer-free machining method which comprises the steps that a coaxial electric spark ultrasonic drilling integrated technology is adopted, an electric spark high-speed small hole machining technology is used for removing materials, an electric spark machining surface is subjected to finishing and reaming through drilling, the surface remelting layer is removed, meanwhile, the surface roughness is improved, and the remelting-layer-free machining method for the double-wall turbine blade large-depth-diameter-ratio film hole is achieved. And ultrasonic vibration is added in the drilling process to reduce orifice burrs and tool loss. The problem of machining slippage of large-depth-diameter-ratio inclined holes in the air film holes is solved through a staged technology and parameter development, meanwhile, based on signal control, extraction and contact sensing modes in the machining process, self-adaptive adjustment and control of the machining depth are achieved, and remelting-layer-free and wall-damage-free machining of the air film holes of the blade body of the double-layer-wall turbine blade is achieved. The method has the advantages that the method is suitable for remelting-layer-free and high-precision surface machining requirements of single-crystal-material double-wall turbine blade film holes, is suitable for machining of multi-model turbine blade film holes, and can be popularized to machining of precise micro holes such as spray rods and nozzle holes.

The invention belongs to the technical field of hydraulic equipment, and particularly discloses a small-table-board ultrahigh-pressure hydraulic extrusion press which comprises a hydraulic system, an electrical system, a supercharger and a hydraulic body. The hydraulic body comprises a rack, a liquid filling device, an upper cross beam, a main cylinder, a return cylinder, an abutting mechanism, a pressing head and a workbench. The pressurizer is used for pressurizing liquid of the hydraulic system and conveying the liquid into the liquid filling device; a big-end-down stepped hole is formed in the rack; a cylinder body of the main cylinder is of a big-end-down protruding structure, a through hole matched with the small end of the cylinder body is formed in the upper cross beam, and the small end of the cylinder body of the main cylinder is embedded into the through hole. The periphery of the upper cross beam is fixed in a small hole of the stepped hole; the cylinder body large end of the main cylinder is matched with the large hole of the stepped hole, and the upper side of the cylinder body large end can abut against the top of the large hole of the stepped hole; the abutting mechanism can jack up the main cylinder upwards. And the return cylinder is mounted on the main cylinder. The pressurizer is adopted to provide ultrahigh pressure, the use pressure is improved, the cylinder diameter of the main cylinder is reduced, and the device is more suitable for large-tonnage small table tops.