560 results about "Blade plate" patented technology

Belonging to the technical field of flue gas desulfurization, the invention provides an efficient energy-saving flue gas rotary denitration reactor, which comprises a mounting sleeve, the outer wall of the mounting sleeve is fixedly connected with a lower cylinder, the top wall of the lower cylinder is fixedly connected with an upper cylinder, the inner wall of the upper cylinder is provided with a cleaning assembly, and the reactor also comprises: a flow guide assembly, and the flow guide assembly comprises a mounting frame fixedly connected to the outer wall of the upper cylinder body, the outer wall of the mounting frame is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with a horizontal driving rotating rod, and the outer wall of the horizontal driving rotating rod is fixedly connected with evenly-distributed blade plates. According to the present invention, the linkage assembly, the cleaning assembly and the driving bevel gear in the flow guide assembly cooperate with each other, such that the thin scraper blade automatically rotates to clean the inner wall of the lower cylinder, the manual cleaning cost and the manual cleaning frequency are reduced, the influence on the normal operation of the reactor due to the particle retention is avoided, the internal cleaning of the reactor is ensured, and the good reaction environment is maintained; the service life of equipment is prolonged.

The utility model relates to the technical field of pay-off devices, in particular to a building electrical pay-off platform capable of automatically cutting off a cable, which comprises a movable seat, a torque motor, a pinion and a gearwheel, a torque motor is installed on the inner wall of the moving seat in a penetrating mode, the output end of the torque motor is connected with a small gear, one side of the small gear is connected with a large gear in an engaged mode, a supporting mechanism is connected to the upper portion of the small gear, the upper surface, away from the large gear, of the moving seat is connected with a stand column, and the upper portion of the stand column is connected with a first limiting assembly. According to the building electrical pay-off platform capable of automatically cutting off the cable, a gear motor is started to drive a threaded rod to rotate so as to drive an upper cutter plate and a lower cutter plate to rotate in opposite directions to cut off the cable, and then the building electrical pay-off platform automatically cuts off the cable; a wire coil is placed on the surface of the tray, the electric push rod is started to drive the dull polish to open the wire coil from the inside, and then the building electrical pay-off platform adapts to wire coils of various specifications.

The utility model provides upper and lower film covering and crust pressing equipment, and relates to the technical field of cake crust production equipment. The upper and lower film covering and skin pressing equipment comprises a feeding assembly, a skin pressing assembly, a cutting assembly and a counting and discharging assembly. The dough to be pressed passes through the feeding assembly, the wrapper pressing assembly, the cutting assembly and the counting and discharging assembly in sequence; the cutting assembly comprises a cutting support, a cutting conveying belt, a cutting power source, a cutting rotating shaft and a cutting upper cutter, the cutting conveying belt is arranged on the cutting support, the cutting power source is arranged on the cutting support, and the cutting rotating shaft is in transmission connection with the cutting power source; the upper cutting-off tool is provided with a mounting base in the axial direction, the upper cutting-off tool is mounted on the mounting base through a tension bolt, the mounting base is in threaded connection with an adjusting bolt, one end of the adjusting bolt can abut against the top of the upper cutting-off tool, and a lower cutting-off tool plate corresponding to the upper cutting-off tool is arranged on the cutting-off support. The technical effect of improving the working efficiency is achieved.

The invention relates to the technical field of rotary blade production and manufacturing, and particularly discloses a welding device for rotary blade shaft production, which comprises an assembly welding rack, a welding mechanism and a clamp mechanism are arranged on the assembly welding rack, and a rotary blade shaft comprises a segmental pipe body and a plurality of soil turning blade plates connected to the outer wall of the segmental pipe body. The clamp mechanism comprises a middle shaft clamp assembly, a side wing clamp assembly and an auxiliary clamp assembly, the middle shaft clamp assembly is used for fixing the segment pipe body and controlling the segment pipe body to rotate, and the side wing clamp assembly is used for clamping the soil turning cutter plate; the auxiliary clamp assembly and the side wing clamp assembly are located on the two opposite sides of the middle shaft clamp assembly correspondingly, the welding mechanism is located between the side wing clamp assembly and the auxiliary clamp assembly, and the auxiliary clamp assembly is used for applying thrust towards the segment pipe body to the soil turning cutter plate. The soil turning cutter plates are clamped and fixed in different directions on the two sides of the segmental pipe body through the clamp mechanism, and the connecting contours of the soil turning cutter plates are welded in all directions on the premise of single welding equipment.

The present invention discloses a modular clamping aid for rotor slot machining tools and a method for using the same, and belongs to the field of mechanical processing technology. The modular clamping aid for rotor slot machining tools of the present invention includes a blade body module, a transition block module, and a tool rod. The blade body module is detachably fastened to the machine tool blade through a locking adjustment module, the transition block module is detachably fastened to the blade body module, and the tool rod is detachably fastened to the transition block module, thereby making the various components modularly detachable. The modular design of the present invention can realize the convenient replacement of rotor slot machining tools, save time and labor costs, and improve machining efficiency.

The invention relates to the technical field of vehicles, in particular to a hinge structure, a tool box and a vehicle, the hinge structure comprises a fixed blade plate, and the fixed blade plate is connected with a body in white; the hinge arm is in a circular arc shape, the first end of the hinge arm is rotationally connected with the first end of the fixed leaf plate, the hinge arm extends towards the second end of the fixed leaf plate, and the second end of the hinge arm is connected with a tool box cover; the elastic limiting piece is arranged at the second end of the fixed leaf plate, and the elastic limiting piece is connected with the hinge arm in an abutting mode; the positioning assembly is arranged on the hinge arm, and the elastic limiting piece can be matched with the positioning assembly to limit the opening angle of the tool box cover relative to the body in white. The limiting device can guarantee the limiting effect.

The invention discloses a machining mold and a forming method of an automobile cold and warm cup stand part, the machining mold comprises a bottom plate, a bottom mold, a first front mold and a second front mold, the bottom mold comprises a rear mold base, a rear mold core, a rear mold plate, an ejector plate and a rear mold base plate, and the ejector plate is movably arranged relative to the rear mold core in the mold closing and splitting direction; the second front mold and the second mold core are provided with movable connecting rods for mold closing and opening linkage; the clearance assembly drives a connecting arm to move relative to the second mold core through an electric cylinder unit to limit the second-section displacement of the second mold core in mold closing; according to the mold, two-section displacement is generated in the injection molding process, the color mixing influence on double-color injection molding is reduced, a manual cutting board is arranged to conveniently control opening and closing of a runner, participation of a power unit is reduced through an arranged core-pulling linkage structure, installation of a control and feedback switch is reduced, the overall complexity of the mold is simplified, and the production efficiency is improved. The mold is convenient to use.

The utility model belongs to the field of turning and milling composite machine tools, and particularly relates to a heavy-duty turning and milling cutter frame which comprises a cutter frame body, a turning cutter plate reciprocating along an X axis is arranged on one side of the cutter frame body, a power head reciprocating along the X axis and a Y axis is arranged on the other side of the cutter frame body, a first sliding assembly is arranged on the cutter frame body, and a second sliding assembly is arranged on the cutter frame body. A first sliding assembly is arranged in the tool rest body to achieve reciprocating motion of the power head, a first X-axis power driving assembly and a Y-axis power driving assembly which drive the first sliding assembly are arranged in the tool rest body, and a second sliding assembly is arranged on the tool rest body to achieve reciprocating motion of the turning tool board. According to the milling cutter rest for the heavy-duty car, a milling part is placed on one side, so that the range of a machining area is larger; a power driving assembly of the milling part is in a built-in type, the space layout is reasonable, and the size is reduced.

The utility model provides novel automatic film pasting back feeder equipment which comprises a rack, a controller, a discharging wheel, a receiving wheel, a stripping knife plate and a label receiving platform, and further comprises a transmission wheel assembly and a fixed pressing plate, the transmission wheel assembly is located below the stripping knife plate, and the fixed pressing plate is located below the stripping knife plate. The transmission wheel assembly comprises a first guide wheel, a second guide wheel, a driving wheel, a driving motor, a driving wheel and a supporting wheel; and a bottom belt of the film pasting material belt between the discharging wheel and the receiving wheel is sequentially erected on the first guide wheel, the second guide wheel and the supporting wheel. The utility model aims to provide the novel automatic film-sticking back-removing feeder equipment, so that the stable conveying of a film-sticking material belt and the smooth stripping of a sticking film are realized, the structure is compact, and the occupied area is reduced.

The utility model relates to a workpiece support of a centerless grinding machine, and relates to the technical field of grinding machines. The workpiece support of the centerless grinding machine comprises a cutting board support and a feeding board support, feeding boards are fixed to the feeding board support, a feeding channel used for conveying workpieces is formed between the two feeding boards, the cutting board support comprises a fixing block and a lower cutting board, the fixing block is fixed to a base of the centerless grinding machine, and the lower cutting board is fixed to the side, away from a guide wheel of the centerless grinding machine, of the fixing block. The feeding plate support comprises a fixed base fixed to a centerless grinding machine base and two coarse adjusting blocks, the two feeding plates are fixed to the upper ends of the two coarse adjusting blocks respectively, a protruding block in the width direction of the feeding channel is fixed to the upper end of the fixed base, and sliding grooves allowing the protruding block to slide are formed in the lower ends of the two coarse adjusting blocks. First fasteners are arranged on the coarse adjusting blocks, and after the two coarse adjusting blocks slide to adjust the distance between the two coarse adjusting blocks, the coarse adjusting blocks and the fixed base are fixed through the first fasteners. The feeding device has the effect of conveniently adjusting the width of the feeding channel.

The utility model relates to the technical field of straw processing, and discloses an equidistant cutting device for straw processing, which solves the problems of difficulty in equidistant cutting, low precision and inconvenience in positioning of straws with different diameters in the straw processing process, and mainly comprises a frame body, a hydraulic cylinder, a cutting board base, an equidistant cutting component and the like, the frame body is fixedly connected with the side baffles through the inverted-L-shaped structural plates, stable supporting is provided, and the object carrying plates can be clamped, embedded, installed and replaced through the dovetail grooves. A V-shaped groove, a cutter groove and a V-shaped clamp are arranged on the loading plate, so that the suction pipes with different pipe diameters can be conveniently positioned; the hydraulic cylinder drives the cutting board base, and the guide rod of the cutting board base slides along the guide groove; according to the equidistant cutting assembly, through cooperation of an air cylinder, a linkage push rod, tool arms, a connecting piece, a tool bit, an organ groove and other components, the distance between the tool arms can be flexibly adjusted, a sensor reads scale line numerical values to ensure the precision, the cut suction pipes fall into a collecting frame, efficient and accurate equidistant cutting of the suction pipes is achieved, and the production efficiency is improved.

The utility model discloses a pole piece lineation mechanism, which is characterized in that a pole piece is placed between a bottom plate and a pressing plate, so that the pole piece can be fixed, then a sliding frame slides along a guide rail, so that four blades are respectively positioned above four lineation grooves, and a cutter adjusting plate moves along the vertical direction under the action of a guide assembly; the knife adjusting plate is pressed down to drive the blade to penetrate through the scribing groove to scribe the pole piece, four notches are formed in the pole piece, four points A, B, C and D are marked on the four notches and are arranged in a square shape, the length ratio of AB, CD, BC and AD before and after rolling is calculated, and the elongation percentage of the pole piece in the transverse and longitudinal X / Y directions is obtained; the length ratio of AC to BD before and after rolling is calculated, and the lateral bending warping rate of the pole piece is obtained.

The swing blade air guide device comprises an air opening plate and a swing blade plate, an air opening is formed in the middle of the air opening plate, and the left end and the right end of the swing blade plate are rotationally arranged in the air opening through swing blade supports respectively. The swinging blade plate is made of metal, one end of the swinging blade support is rotatably connected with the tuyere plate, the other end of the swinging blade support is connected with the swinging blade plate in a buckling mode, the swinging blade plate is made of metal and high in strength, even if the swinging blade plate is made into a thin and long structure, the swinging blade plate is not prone to distortion and deformation, not prone to deformation and aging when used in a high-temperature environment for a long time and more durable. The service life is longer, the flame-retardant effect is better, and the safety performance is improved; and the swing blade bracket is connected with the swing blade plate in a buckling manner, so that compared with the traditional screw fixing scheme, the mounting process is simplified, the use of screws is reduced, the production efficiency is improved, and the production cost is reduced.

The invention provides high-boiling-point and low-freezing-point cooling liquid homogenizing equipment and a preparation method thereof, and relates to the technical field of cooling liquid production.The high-boiling-point and low-freezing-point cooling liquid homogenizing equipment comprises a shell and a transmission shaft, a fixing base is arranged at the top end of the transmission shaft, and each paddle assembly is arranged on the surface of the transmission shaft; each paddle assembly comprises a pivot seat, a bypass pipe, a paddle plate I, a connecting seat and a paddle plate II, at least two flow guide strips are arranged at the two side end parts of each paddle plate II, and pipelines are arranged in each paddle plate I and each paddle plate II. The cooling liquid is mainly composed of 90% of ethylene glycol, 7% of nanometer aluminum oxide, 1% of carbon nanotubes and 2% of a dispersant, the nanometer aluminum oxide has super-strong thermal conductivity, can assist heat dissipation and prevent corrosion, and can stabilize the pH value of the cooling liquid to be neutral, the carbon nanotubes can prevent the cooling liquid from forming large particles due to electrostatic adsorption, and the service life of the cooling liquid is prolonged.

The invention relates to the technical field of transfer cylinders, in particular to a polyacrylamide processing transfer device which comprises a cylinder, a bracket is slidably connected into the cylinder, a servo motor is mounted on the surface of the bracket, a plurality of blades are fixed to a rotating shaft of the servo motor, a first cutting board is arranged at the end of each blade, and an electric telescopic rod is mounted on the surface of the bracket. One end of a piston rod of the electric telescopic rod is fixed on the inner wall of the cylinder; the polyacrylamide raw material mixing device has the beneficial effects that when the barrel is dumped and horizontally placed on the ground and is pushed to roll forwards to transfer a polyacrylamide raw material, a servo motor switch is triggered, a servo motor rotating shaft drives blades to mix the raw material in the barrel, mixing operation is completed while the raw material is transferred on site, the production efficiency is improved, and the production cost is reduced. Extra mixing equipment is not needed.

The utility model relates to the technical field of sealing rubber strip cutting, in particular to a sealing rubber strip cutting device which comprises a body. The cutting assembly is arranged at the right end of the main body, the cutting assembly comprises a connecting plate, a sliding frame, a spring, a sliding block, a roller, a piston, a cutting board, a lifting frame, a motor, a lead screw, a lifting plate and a shifting block, the right end of the main body is connected with the connecting plate, and the connecting plate is L-shaped; the cutting assembly is arranged, the motor is started, the motor drives the lead screw to rotate, the lead screw rotates to drive the lifting plate to vertically move in the lifting frame, the lifting plate moves to drive the shifting block to press downwards so as to extrude the rolling wheel, the rolling wheel is extruded by external force to enable the sliding block to slide in the sliding frame, and the spring is extruded to be shrunk. The piston is used for rapidly driving the cutting board to move, the front side and the rear side of the adhesive tape are cut at the same time, the shifting block ascends, the spring assists the sliding block in resetting, and cutting is completed.

The application belongs to the technical field of flow velocity measurement, and particularly relates to an assembled adjustable flow velocity measuring instrument. When the existing flow velocity measuring device is installed on a counterweight, it can only be fixed through a simple bolt assembly, the fixing method is single, the device cannot be easily disassembled after being fixed, the device cannot be well maintained, and the utilization rate is reduced. The device comprises a mechanical box, a hook is installed at the bottom of the mechanical box, a steel rope is wound on the hook, and the steel rope is fixedly connected with the counterweight. A connecting block is arranged on the side of the mechanical box away from the counterweight, and a flow velocity instrument assembly is installed on the connecting block. The flow velocity instrument assembly comprises an adjusting column arranged on the top of the connecting block, a connecting ring is installed on the adjusting column, a measuring shaft is arranged on the outer side of the connecting ring, a speed measuring blade plate is installed on one end of the measuring shaft, and a speed measuring instrument is arranged on the other end of the measuring shaft. The speed measuring instrument is connected with a flow velocity measuring host through a speed measuring optical fiber, and the efficiency of the device during installation and disassembly is improved.

The invention discloses a conveying device for rice production and a method thereof, and belongs to the technical field of rice production. The device comprises a box body, a heating cylinder, a conveying cylinder, a motor, a speed reducing unit, a conveying mechanism, a rolling mechanism, a first transmission mechanism and a second transmission mechanism, the interior of the box body is divided into a material distribution chamber and a drying chamber through a partition plate, the drying chamber is provided with an axial flow fan, and the partition plate is provided with through holes with interception nets. The heating cylinder penetrates through the two chambers, is embedded with an electric heating layer, and is provided with a first air hole and a feed opening; the conveying cylinder is sleeved outside the heating cylinder, a second blade plate is arranged on the inner wall, and a second air hole and a discharge hole are formed; the motor and speed reduction unit drives the rolling mechanism through the first transmission mechanism, drives forward conveying in the heating cylinder through the conveying mechanism, and drives reverse conveying in the conveying cylinder through the second transmission mechanism. The device integrates the functions of rolling, impurity removal, dual drying and bidirectional conveying, solves the problems that an existing device is single in function and incomplete in impurity removal, and improves the rice production efficiency and the raw material quality.

The present application relates to a kind of knife groove lifting type flanging machine, including base, base includes two sides opposite wallboard, and the rear side between wallboard is inserted and fixed with cross beam, and cross beam is distributed in the upper end and lower end of wallboard;The upper portion of the front end surface of wallboard is fixed with rectangular tool holder plate, and the lower side of the front end surface of tool holder plate is formed with installation groove passing through the lower end surface of tool holder plate, and the installation groove is inserted and fixed with flanging tool plate, and the just below of flanging tool plate is equipped with flanging knife groove, and flanging knife groove is fixed on vertical tool groove lifting seat, and the rear end surface of tool groove lifting seat is fixed with several vertical distribution sliding blocks, and sliding block is inserted with vertical guide rail, and guide rail is respectively fixed on the front end surface of wallboard.This flanging machine will be designed with fixed structure to flanging tool plate, and then flanging knife groove is designed with lifting structure, and air duct can be lifted with flanging knife groove to cooperate flanging tool plate to be flanged, and air duct enters the avoidance groove of tool holder plate in the process of flanging, and the side edge of air duct is smoothly flanged.

The invention discloses a fishing roller and an automatic water surface cleaning device. The device comprises a rolling body, a blade plate and a collector plate, the interior of the rolling body is hollow to form a hollow cavity, a rotating shaft is fixed to the axis of the rolling body, and a plurality of slit openings are circumferentially and uniformly distributed in the outer circumferential surface of the rolling body and penetrate through the rolling body to be communicated with the hollow cavity; the blade plates are clamped on the slit openings, and gaps are reserved between the blade plates and the slit openings; the collector plate is provided with a collector groove, the collector plate is arranged in the hollow cavity and connected to the rotating shaft, the collector plate is located on the lower half side of the hollow cavity, rotation of the collector plate relative to the rolling body is kept prohibited, the collector plate extends in the axis direction of the rolling body, one of the two ends of the collector plate is high, and the other end of the collector plate is low; the side, close to the outflow opening, of the rolling body is provided with a plurality of collecting openings right opposite to the outflow opening, and floating algae and solid waste in pollutants floating on the water surface are classified and cleaned.

The utility model relates to the technical field of metal plate processing equipment, and discloses an adjustable steel plate cross cut shear tool apron which comprises a shell, an adjusting mechanism is installed on the top of the shell, a plurality of sets of inclining mechanisms are arranged on one side of the adjusting mechanism, a positioning mechanism is installed on one side of the shell, and the positioning mechanism is arranged on the other side of the shell. The inner wall of the adjusting mechanism is provided with a mounting mechanism, one side of the shell is provided with a sensor, the interior of the shell is fixedly connected with a limiting mechanism, the adjusting mechanism comprises a fixing plate, the bottom of the fixing plate is fixedly connected to the top of the shell, one side of the fixing plate is in threaded connection with a lead screw, and the lead screw is in threaded connection with the limiting mechanism. A first motor is fixedly connected to one side of the lead screw. According to the utility model, the supporting table is combined with the moving table, so that a steel plate is stably positioned; the moving table is driven by a motor, the position of the lower cutter plate is accurately adjusted, the motor drives a screw to rotate and guide the moving plate, and therefore the hydraulic cylinder and the inclining mechanism are pushed, and the cutting plate is effectively adjusted.

The utility model relates to the technical field of shavers, in particular to a four-blade type shaver head which comprises a connecting threaded cylinder, a horizontally-arranged fixing frame is fixedly connected to the front side of the connecting threaded cylinder, and a through groove penetrating through the fixing frame from top to bottom is formed in the fixing frame. Through the arranged fixing frame, through grooves, partition plates, positioning assemblies, positioning rods, connecting plates, clamping frames, positioning springs, round plates, cutting boards, blades, mounting plates, clamping grooves and threaded heads, when the cutting boards are mounted, the connecting plates are pressed, at the moment, the clamping frames move along with the positioning rods, the positioning springs are compressed, then the mounting plates are inserted into the inner side of the fixing frame, and the connecting plates are loosened; when the cutting board is used for shaving, shaved beards enter the inner side of the fixing frame through the gaps between the blades and fall off through the through grooves, the design can prevent the beards from blocking the inner side of the device, and use convenience is improved.

The invention discloses a land leveler dozer blade structural member lap welding tool which comprises a bearing assembly and a lap joint assembly, the bearing assembly comprises a bearing seat, the top of the bearing seat is connected with a plurality of bearing vertical plates arranged in a straight line in an assembled mode, and the tops of the multiple bearing vertical plates are connected with the same dozer blade plate in a buckled mode; the lap joint assembly comprises a lap joint frame with the V-shaped section, a plurality of clamping assemblies and two bracket assemblies. The dozer blade auxiliary component is positioned and installed on the lap joint assembly, when the dozer blade auxiliary component is accurately in butt joint with the dozer blade plates at the tops of the multiple bearing vertical plates through the lap joint assembly, the side plates are fixed through the two bracket assemblies, the dozer blade plates can be positioned when the side plates are arranged at the two ends of the dozer blade plates, and meanwhile, the dozer blade auxiliary component can be fixed through the bracket assemblies. Due to the fact that the position, used for positioning the auxiliary component, of the lap joint assembly is fixed and overall cooperation is achieved, the auxiliary component can be accurately in lap joint with the outer wall of the dozer blade plate, and the accuracy of the welding position is guaranteed.

This invention relates to a gantry shearing device for scrap steel recycling, belonging to the technical field of gantry shearing devices. It includes two support columns, with a fixed beam fixedly installed at the top of both columns. A conveying trough is fixedly installed at the rear of both support columns, and a pushing component is provided on the rear side of the inner wall of the conveying trough. Two sets of hydraulic cylinders are fixedly installed at the top of the fixed beam. The output end of the front set of hydraulic cylinders is equipped with a cutting blade, while the output end of the rear set of hydraulic cylinders is fixedly equipped with a pressing plate. The cutting blade includes a connecting horizontal plate and a cutting blade body disposed at the bottom of the connecting horizontal plate. This invention ensures that the material is reliably compressed before shearing by real-time detection of the material thickness during the conveying process, fundamentally avoiding material slippage, edge curling, and displacement during shearing, significantly reducing the risk of blade jamming, improving equipment operational stability, and achieving adaptive adjustment of the blade gap according to the material thickness.

The utility model relates to the technical field of angelica sinensis planting, in particular to a digging device for angelica sinensis planting, which comprises a connecting rod, the device further comprises a soil digging assembly, the soil digging assembly is arranged at the left end of the connecting rod, the soil digging assembly comprises a connecting block, a disc, a gear, a cutting board, a moving wheel, a toothed plate and a rotating rod, and the front side of the left end of the connecting rod is connected with the connecting block. The soil digging assembly is arranged, the moving wheel rotates on the ground, the moving wheel rotates to drive a toothed plate to rotate, the toothed plate drives a gear to rotate, the gear rotates to drive a disc to rotate, and the disc rotates to drive a plurality of cutting boards to rotate, so that soil is turned, the hardness of the soil is reduced, and the effect of soil pretreatment is achieved; the problems that an existing excavating device for angelica sinensis planting usually directly conducts excavating operation and has no treatment capacity for the hardening degree of soil, additional reclamation equipment is needed for pretreatment when land parcels which are not reclaimed or hardened soil are encountered, the additional cost is increased, and the operation efficiency is reduced are solved.

The utility model relates to the technical field of express logistics, in particular to an automatic parcel sorting device for express logistics, the lower side of the left end of a detection box is fixedly connected with a feeding frame, the lower side of the interior of the feeding frame is rotatably connected with a feeding conveying belt, and the inner side of the feeding conveying belt is provided with guiding and conveying blocking blade plates in a crossed mode; according to the automatic feeding device for the parcels, the parcels can be automatically fed under the action of the arranged feeding conveying belt, the transmission wheel can drive the transmission rod to rotate through rotation of the retarding motor, and therefore the parcels can be automatically fed through the transmission wheel, the parcels can be automatically fed through the transmission wheel, and the parcels can be automatically fed through the transmission wheel. And a transmission bolt can drive a driven wheel to rotate discontinuously, so that an outer side blade plate of a guiding and conveying blocking blade plate can push a single package and can block subsequent packages, and the situation that multiple packages are conveyed into detection equipment at the same time, and consequently the detection accuracy and the sorting accuracy are affected is avoided.

The novel efficient tandem type water turbine comprises a water turbine main machine (1), the water turbine main machine (1) is composed of a main machine shell (3), a main machine water inlet (4), a main machine water outlet (5) and a main machine blade plate wheel (6) installed in the main machine shell (3), and the main machine blade plate wheel (6) is formed by connecting four blade plates (18) in a cross shape; a pressurizing reducer pipe (7) is connected between the main machine water inlet (3) and the main machine shell (3), one end of the pressurizing reducer pipe (7) is a circular pipe, and the other end of the pressurizing reducer pipe (7) is a flat square pipe; the main machine impeller wheel (6) is connected to a main machine rotating shaft (8); and the main machine rotating shaft (8) is connected to main machine bearing seats (9) on the two sides of the main machine shell (3). The water turbine is simple in structure, ingenious in conception, small in size, light in weight and flexible to install, arrange and use, the kinetic energy of water is greatly improved through the ingenious design of the vane wheel and the connection of the supercharging reducer pipe to the water inlet of the main machine, the water turbine is made to achieve the efficient effect, and the water turbine is efficient in operation and has good economic and social benefits.

The application discloses a roller positioning device and relates to the technical field of knife plate processing. The roller positioning device comprises a conveying roller, sliding seats arranged on both sides of the conveying roller along the conveying direction of the conveying roller, a driving device for driving the sliding seats to move along the conveying direction of the conveying roller, and a pair of light electric switches fixedly installed on the sliding seats, wherein the second pair of light electric switches is located behind the first pair of light electric switches along the conveying direction of the conveying roller. The pair of light electric switches is arranged to make the parking position of the knife plate exactly located at the center of the truss grab, thereby ensuring the accuracy of the parking position of the knife plate in the material preparation area, greatly reducing the failure rate of the equipment, effectively reducing the participation of manual work, greatly improving the production efficiency, and improving the yield and benefits.

This invention discloses a special cutting tool and machining method for removing welded stops within the confined space of an aero-engine. The special cutting tool includes a tool holder and a cutting plate. The head of the tool holder has a spindle interface for connection to a machine tool spindle. The cutting plate is generally flat, with a cutting edge at its end for removing the welded stop. The tool holder and cutting plate are connected by a connecting mechanism, and the connected tool holder and cutting plate are L-shaped. The machining method adopts a "separate, internally connected" design concept, cleverly solving the problem of the tool being unable to enter the ultra-narrow inlet deep cavity.