180results about How to "Guaranteed to stick" patented technology

The invention relates to a drilling and milling carbon fiber composite material follow-up dust collection device, belongs to the technical field of energy saving and environmental protection during the processing process of carbon fiber composite materials, and relates to a carbon fiber composite material dust removal and collection device. The device comprises a swarf collecting assembly, a wet process dust-settling device, a power part and a water filtration circulating device. A swarf collecting cover in the swarf collecting assembly is arranged on a machine tool spindle box, and an annular electromagnet sucking disc is positioned in an annular groove at the top of the swarf collecting cover; the device is fixed with bolts through a pressing plate; a power cord of the annular electromagnet sucking disc is connected with an I / O (Input / Output) module of a PLC (Programmable Logic Controller) through a contactor. The drilling and milling carbon fiber composite material follow-up dust collection device can sufficiently collect a great deal of dust during the drilling and milling process of carbon fiber composite material, the swarf collecting cover can synchronously feed along with a spindle tool, and pulls away and collects swarf and dust generated during the processing process in time, so that the swarf and the dust are prevented from floating anywhere to cause environmental pollution and damage to machine tool equipment.

The invention discloses an axial crack defect internal detector for pipe wall based on the magnetostrictive effect. The axial crack defect internal detector runs forward under the driving of media in a pipeline, and detects axial crack defects of the pipe wall during the running process. The internal detector comprises an electric sealed cabin, a plurality of ultrasonic sensors based on magnetostrictive effect and a driver, wherein the electric sealed cabin is internally provided with a data collecting part, a signal processing part and a data storage part; two ends of the electric sealed cabin are respectively provided with a set of support wheels which are ranked circumferentially; the plurality of ultrasonic sensors based on the magnetostrictive effect are connected out of the electric sealed cabin in a circumferential arrangement mode, and are tightly close to the inner wall of a pipeline; each ultrasonic sensor comprises a permanent magnet, an ultrasonic coil and a spring support; the ultrasonic coil is positioned between the pole N and pole S of the permanent magnet; the spring support is connected between the permanent magnet and the ultrasonic coil; the driver is connected with the electric sealed cabin through a universal joint; and two ends of the driver are respectively provided with a set of support wheels which are arranged circumferentially, and a plurality of staggered mileage wheels are arranged one set of the two sets of support wheels which are arranged circumferentially.

The invention discloses a karst rich water tunnel water-proof and drainage construction method. By adopting the principle of "combination of prevention, drainage, interception and blockage, adaptationto local conditions and comprehensive treatment" and a water-proof method of combining water-proof with drainage is introduced to ensure the realization of project safety and quality objectives. Thekarst rich water tunnel water-proof and drainage construction method solves the problems that the difficulty of construction of a karst rich water tunnel such as an iron helmet mountain is high, the existing construction method cannot be applied well, and many potential safety hazards exist. The invention belongs to the technical field of tunnel construction.

The invention discloses a method for making a GCL (geosynthetic clay liner) vertical cut-off wall, and belongs to the field of seepage prevention. The method comprises the following steps of digging a groove; rolling up GCL with a round tube with the needed balance weight, fixing one end of the GCL to the top of the groove, and downwards inserting the GCL vertically along the wall of the dug groove, wherein the length of the GCL is larger than the depth of the groove; slowly unrolling to lay the GCL to the bottom of the groove along the wall from top to bottom, and fixing the GCL to the wall in an attached manner, then, taking out the round tube, and pouring slurry to the groove to carry out solidification so as to form the GCL vertical cut-off wall. The method for making a GCL vertical cut-off wall has the advantages that the effect of seepage prevention is good, and construction is easy.

The invention discloses a separated type prefabricated reinforced concrete cow-leg pillar and a construction method of the separated type prefabricated reinforced concrete cow-leg pillar. The separated type prefabricated reinforced concrete cow-leg pillar comprises a prefabricated pillar body and a bracket unit which can be arranged on the pillar body in a later period, wherein a bracket reinforced bar is arranged in the bracket unit, one or more bracket connecting areas is arranged on the pillar body, a pillar body preformed hole is formed in the bracket connecting area, a bracket preformed hole corresponding to the pillar body preformed hole is formed in the bracket unit, the pillar body preformed hole is communicated with the bracket preformed hole, and concrete is poured into the pillar body preformed hole and the bracket preformed hole to realize connection of the bracket unit and the pillar body. A prefabricated method is adopted to overcome the defects that the pillar body can be damaged easily when the bracket is additionally arranged by adopting the anchor bar technology, and the working efficiency is low; and the separated type prefabricated construction method is adopted to overcome the defects that the pressing resistance is high and damage can be easily caused when the fabricated pillar together with the bracket is pressed into the ground.

The invention relates to the field of tool fixtures for steam turbine blade machining, in particular to an adjustable fixture based on blade root inclined surface positioning. The fixture uses a bladeroot radial surface as a main positioning surface; a blade root tail part is positioned by adopting a positioning support plate; and a blade root molded surface is positioned by a replaceable positioning support nail mounted on a movable positioning table. The fixture comprises a fixture body, a movable upper cover, a clamping plate, the movable positioning table, an angle adjusting block, a positioning plane plate, an angle adjusting rod and the like. The movable positioning table is provided with a chute matched with the fixture body for shifting the movable positioning table up and down toadapt to different blade root thicknesses. A positioning support nail is mounted at the left end of the movable positioning table; and an angle adjusting block is mounted in an arc groove. Before clamping, the angle adjusting rod is rotated to adjust the inclined angle of the angle adjusting block; and the positioning support nail with proper length is replaced to guarantee consistency of the blade root center and the fixture revolving center after clamping. The clamping of blades is realized through buckling and pressing of a clamping plate by an upper cover. The clamping of different typesof blades is met; and the blade machining efficiency is improved.

The invention discloses a two-fabric one-membrane sliding layer tensioning device. A two-fabric one-membrane sliding layer (4) comprises a lower geotextile positioned on a bottom layer, a geomembrane positioned on an intermediate layer and an upper geotextile positioned on an upper layer. The two-fabric one-membrane sliding layer tensioning device comprises a tensioner (1) of which one end is fixed on the geomembrane and the upper geotextile while the other end is fixed on a stationary fixing device (2). In the tensioning device, the geomembrane and the geotextile are tensioned by connecting one end of the tensioning device with the geomembrane and the upper geotextile and connecting the other end of the tensioner with the stationary fixing device, so as to ensure the close adhesion of two fabrics and one membrane and effectively solves the problem of blistering of the two fabrics and the one membrane before casting concrete; and the sliding layer has the characteristics of simple structure, easy process and convenient assembly and disassembly. The invention also discloses a two-fabric one-membrane sliding layer paving method using the tensioning device.

The invention provides a leveling device for anchor rod drawing detection and a construction method. The leveling device comprises a leveling plate, a lifting mechanism and a supporting mechanism, thelifting mechanism is detachably arranged between the leveling plate and the supporting mechanism, the supporting mechanism is connected with the lifting mechanism, and the supporting mechanism is provided with a universal adjusting unit so that the leveling plate can be adjusted at multiple angles. According to the leveling device, the problems that a steel base plate is not tightly attached to the slope surface in the pull-out test detection of the slope anchor rod of a mountain highway and the anchor rod cannot be stressed by axis are solved; and the leveling device can be suitable for detecting side slope anchor rods with various slope rates, angles, rock mass breakage after excavation and uneven slope surfaces, and solves the problem that the anchor rod is difficult to detect due to the uneven slope surfaces in a broken side slope.

The invention discloses a double-glass-fiber covered enamelled copper flat wire, which is formed of wrapping double-layer glass fiber on a copper flat wire and coating a layer of bonding paint on the surface and among all layers, and the double-layer glass fiber adopts reticular glass fiber layers with the wrapping pitch greater than 5mm and smaller than 6mm and the wrapping angle greater than 10 degrees and smaller than 30 degrees. The invention also discloses a production process of the double-glass-fiber covered enamelled copper flat wire. The double-glass-fiber covered enamelled copper flat wire has the advantages that the indexes of performance such as the bending performance, the sticking performance and the like are improved, the use requirements can be met, and the service life is prolonged.

The invention discloses an Agrobacterium local invasion device applied in a soybean hypocotyl explant transformation acceptor system, and an invasion method thereof. The invention provides the simply-designed device successfully applied in the Agrobacterium invasion of the soybean hypocotyl explant conversion acceptor system to inhibit the excess propagation of the Agrobacterium on the surface of the explant in a medium in order to prevent the decay of a plant material, and the device enables the whole explant to be immersed in the Agrobacterium solution, so only the upper end notches of the hypocotyl having an adventive bud regeneration potential undergo the Agrobacterium invasion. Invasion method conditions are further optimized in the invention. The medicine cost of the soybean hypocotyl explant genetic transformation acceptor system can be reduced and the transformation working efficiency can be improved through applying the device and the method.

The invention discloses a press-fitting tool for a spark plug barrel of a cylinder cover. The press-fitting tool comprises a round tubular screwing sleeve, a press rod and an end surface press sleeve; the outer periphery of the top end of the screwing sleeve is provided with a flat position screwing part adaptive to a sleeve torque spanner; a radial positioning flange adaptive to and inserted with the aperture of a bottom hole of a cylinder cover oil atomizer is arranged at the lower part of the fastening sleeve; a clamping table edge adaptive to a barrel notch is arranged at the bottom end of the screwing sleeve; the press rod has a three-stage step shaft structure and comprises a large top end press head shaft, a middle penetrating middle shaft and a small bottom end shaft; the press rod is axially glidingly arranged in the fastening sleeve in a penetrating mode by the middle penetrating middle shaft; the upper end of the end surface press sleeve is fixed at the small bottom end shaft of the press rod; the lower end surface of the end surface press sleeve is a copper sleeve inner hole step pressing surface. The press-fitting tool for the spark plug barrel of the cylinder cover is simple and reasonable in structure and can ensure that the lower end surface of a copper sleeve is attached to the step surface of the bottom hole of the oil atomizer, thus further ensuring the copper fixing quality of the copper sleeve and the water cavity sealing quality of the cylinder cover; the cylinder cover does not need to be accurately positioned, the operation is convenient and the assembly efficiency is high.

The invention discloses a preparing method for enhanced breathable insulating materials. alkali-free glass fiber and water drawing glass fiber are as raw materials, the alkali-free glass fiber and water drawing glass fiber are enabled to be mixed, meanwhile, white water is added in, achieved mixed liquor is stirred to be in a suspension dispersed state, then mixed liquor of alkali-free glass fiber and the white water is added in, and pulping is continuously to be done; formed seriflux is enabled to be transported to a multitube seriflux arranging machine through a stainless steel screw pump, the seriflux through the multitube seriflux arranging machine enters a breast box and flows naturally to a forming part to form a wet paper sheet, the wet paper sheet is enabled to be secondary formed through a press roll, then the wet paper sheet achieved through the steps is sent into a natural gas tunnel-type drying oven, and a rough blank is achieved; the dried rough blank is enabled to be parted off and rolled up according to demanded specification, and then the needed enhanced breathable insulating materials are achieved.

The invention relates to a device and a method for processing a connector of a superconducting wire contact. The device comprises a first cylindrical roller and a second cylindrical roller, wherein the axes of the first cylindrical roller and the second cylindrical roller are parallel to each other; a gap, in which a second generation high-temperature superconducting wire is arranged for filling, is arranged between the first cylindrical roller and the second cylindrical roller; the first cylindrical roller and the second cylindrical roller are controlled to rotate along opposite directions and have same linear velocities; a first surface, close to a metal base, of the second generation high-temperature superconducting wire is fixed on the first cylindrical roller; a second surface, close to a superconductive layer, of the second generation high-temperature superconducting wire is fixed on the second cylindrical roller; the radius of the second cylindrical roller is greater than the critical bending radius of the second generation high-temperature superconducting wire. The device and the method provided by the invention can be used for efficiently and reliably obtaining the connector in low cost and the obtained connector can keep excellent superconducting performance.

The battery / battery pack includes positive plate, negative plate, diaphragm, electrolyte, and sealed outer housing. Characters are that the battery / battery pack also includes a safety subassembly. The safety subassembly is an elastic plate installed between inner wall of outer housing and pole piece group piled from positive plate, diaphragm, and negative plate; or the elastic plate is installed between battery and inner wall of outer housing of battery pack. The elastic plate adds elastic force to pole plates all the time in charging and discharging procedure, and keeps dynamic close fitting between pole plates and diaphragm. Thus, the invention guarantees dynamic stability of internal resistance of battery as well as directional movement of lithium ion. An air release valve is installed on the outer housing. When inner gas pressure becomes larger, gas inside battery / battery pack can be released, but outer gas is unable to enter inside the outer housing so as to guarantee safety.

The invention relates to a door assembly of refrigeration equipment and refrigeration equipment. The door assembly of the refrigeration equipment includes a glass door shell or a metal door shell. The main body of the metal door shell is a plane plate, and an end cover is also included. In the length direction and on the outer surface of the end cover, a long strip with an L-shaped cross-section is extended outward. A groove for clamping the flat plate is formed between the long strip and the outer surface of the end cover. The metal door shell is installed on the end cover by snap-fitting of the groove, or the glass door shell is bonded to the outer surface of the end cover by an adhesive. When installing the metal door shell, the plane plate is clamped with the groove, and the columns on both sides of the metal door shell are engaged with the end cover and the joint provided on the end cover, and the metal door shell is installed on this end; the cover; and When the glass door shell is installed, the glass door shell can be bonded to the outer surface of the end cover through an adhesive, and finally one end cover can fix two kinds of door shells.

The invention relates to the technical field of building construction, particular to a hoisting device and hoisting method for a prefabricated panel. The hoisting device comprises a hoisting portion for hoisting the prefabricated panel and a clamp portion for fixing the position of the prefabricated panel, wherein the clamp portion is connected with the lower end of the hoisting portion and is provided with an anchor bolt arranged in the penetrating a hoisting hole that is formed in the prefabricated panel. When the prefabricated panel is hoisted by using the hoisting device, the prefabricatedpanel is placed in the clamp portion at first, the hoisting anchor bolt is inserted into the hoisting hole, and the prefabricated panel is fixed onto the hoisting device; a combination of the clamp portion and the hoisting anchor bolt replaces hoisting rings for the prefabricated panel, so safety and reliability during hoisting are improved, and usage requirements of prefabricated panels with different thicknesses and different bore diameters on the hoisting device are met; and in use of the hoisting device, presetting of hoisting rings on prefabricated panel is not needed, so materials are saved.

The invention relates to the field of medical devices, in particular to an orthopedic intramedullary ultrasonic locking nail aiming aid. The orthopedic intramedullary ultrasonic locking nail aiming aid comprises a first adjusting part and a second adjusting part, wherein the first adjusting part comprises a fixing sleeve, the fixing sleeve is provided with a semicircular arc-shaped strip hole, thefixing sleeve is internally provided with a rotating shaft, the end of the rotating shaft is connected with a first micro-rotary motor, the portion, corresponding to the semicircular arc-shaped striphole, on the rotating shaft is provided with a positioning block, the positioning block penetrates through the arc-shaped strip hole and is connected with a rotating sleeve slidably arranged at the outer side face of the fixing sleeve, the rotating sleeve is fixedly provided with a transmission rod perpendicular to the axis of the rotating shaft, the transmission rod is fixedly provided with thesecond adjusting part, the end, away from the second adjusting part, of the positioning rod is square, the square end of the positioning rod is provided with a locking nail positioning sleeve, and thelocking nail positioning sleeve is detachably connected with an ultrasonic aiming device. The orthopedic intramedullary ultrasonic locking nail aiming aid firstly performs coarse tuning and then performs fine tuning, which can achieve accurate aiming, and the operation errors can be reduced through automatic control.

The invention discloses a microstrip phase shifter, and the phase shifter comprises: a first substrate which comprises a first surface and a second surface, wherein the first surface and the second surface are opposite to each other, the first surface is provided with a metal ground layer, and the second surface is provided with a first feed line and a second feed line, which are arranged in parallel; a mobile assembly which is movably arranged on the first substrate, wherein a mobile feeder line is arranged on the mobile assembly, the mobile feeder line comprises a first feed part, a second feed part and a connecting part connected with the first feed part and the second feed part, the first feed part is movably stacked on the first feeder line, and the second feed part is movably stackedon the second feed line; and a cover shell which is detachably arranged on the first substrate, wherein the moving assembly is arranged between the cover shell and the first substrate. The microstripphase shifter has the advantages of being small in size, light in weight and low in cost.

The invention provides an automatic pipeline cleaning robot control method based on torque control. A robot comprises a spray rod, a spray nozzle connected to the spray rod and a monitoring camera arranged on the robot. The control method includes the following steps that a robot parameter configuration file is read, and the monitoring camera is started; an automatic pipeline cleaning signal is obtained; control signals for a first servo motor and a second servo motor are output to control a vertical rotating shaft of the spray rod and a horizontal rotating shaft of the spray rod to operate; whether the received return speed of the horizontal rotating shaft or the vertical rotating shaft of the spray rod is zero and continues for certain time T or not and whether a cleaning cycle is completed or not are judged; if yes, the robot moves by a preset advancing distance along a current pipeline; and whether the moved distance of the robot is larger than or equal to the set total distance or not is judged, if yes, the cleaning work is terminated, and if not, the next cleaning cycle is carried out. By the adoption of the scheme, the failure rate of a drive motor of the automatic pipeline cleaning robot in the pipeline work is lowered effectively, and meanwhile, the effect of cleaning oil stains on the pipeline is improved effectively.

The invention discloses an improved mechanical seal, a movable ring component of the improved mechanical seal comprises a movable ring (13), a fastening ring (9) which is in interference fit with a shaft (10), a rigid transmission sleeve (11) of which a tail inner hole is interference fit with the fastening ring (9), an elastic support (7) which is equipped with two ring-shaped boss (18) at left and right ends, and a spring (12) which is abutted between a movable ring seat (5) and a spring seat (8);an axial groove (4) matched with a lug (6) on external circumference surface of a head of the rigid transmission sleeve (11) is arranged on an internal circumference surface of the movable ring (13); the movable ring seat (5) and the spring seat (8) are respectively hung to the ring-shaped boss (18) at the left and right ends of the elastic support (7); step end surface of the movable ring (13) is hung to the ring-shaped boss (18) at the left end of the elastic support (7); and the tail step end surface of the rigid transmission sleeve (11) is hung to the ring-shaped boss (18) at the right end of the elastic support (7). The improved mechanical seal can not be twisted off under working state, thereby prolonging service life.

The invention relates to the technical field of calculus treatment, in particular to a calculus removing apparatus for lithangiuria in urology. The calculus removing apparatus comprises a calculus removing pipe and a calculus removing head, wherein the calculus removing head is arranged at one end of the calculus removing pipe, an accommodating bag is arranged at the other end of the calculus removing pipe, a calculus falling passage is formed in the middle position of the inner part of the calculus removing pipe, and the accommodating bag communicates with the inner part of the calculus falling passage; and the calculus removing head comprises two shells which are symmetrically arranged, and expanding and contracting connecting pieces connected with the two shells, and a calculus breakingelectrode is also mounted on the inner side of each shell. According to the calculus removing apparatus disclosed by the invention, the calculus removing pipe extends into the urethra of a patient, the calculus removing head is used for breaking calculi, and the broken calculi slide into the inner part of the accommodating bag for storage along the calculus falling passage; in the calculus removing process, thread sleeves are driven by rotating shafts to move, and further through cooperation between first connecting members and second connecting members, the shells are driven to open and close, so that the calculus removing head can be suitable for calculi of different sizes, the calculus breaking electrodes are guaranteed to be closely attached to the calculi, and the calculus breaking effect can be improved.

The invention provides a neck and shoulder osteoarthropathy therapeutic apparatus, belonging to medical instrumentation. The therapeutic apparatus comprises a head copying therapeutic box, a neck copying therapeutic box, a back copying therapeutic box, a two-front-shoulder copying therapeutic box and a two-rear-shoulder copying therapeutic box; by means of active connection among the therapeutic boxes, the therapeutic boxes can be applied to the corresponding position of body; by adopting a sliding rail mechanism between the two-rear-shoulder therapeutic box and the back therapeutic box and a torsional spring adjusting and locking mechanism between the two-front-shoulder therapeutic box and the two-rear-shoulder therapeutic box, the therapeutic boxes can be applied to effective positions of people in different shapes as far as possible; by adopting a magnetic-pulse component and a flaky permanent magnet fixed by a pressure spring in the event that the therapeutic boxes are applied to one side of the human body, the therapeutic boxes can be applied to the effective positions; and the two-front-shoulder copying therapeutic box and the two-rear-shoulder copying therapeutic box are provided with heating sheets, temperature control sensors and far infrared ceramic powder coatings for outer surface coating for treating positions of the human body, thus achieving accurate acupoint treatment, improving effective utilization ratio, and realizing standard and normative healthcare and treatment.

The invention provides a natural rubber intelligent binding type tree-attaching profiling automatic rubber tapping machine and a using method, the rubber tapping machine comprises an adjustable binding fixing device, a vertical motion device, a circular motion device, a rubber tapping intelligent control module and a direct current gear motor, and the adjustable binding fixing device is used for fixing the automatic rubber tapping machine on a natural rubber tree; the rubber tapping intelligent control module controls the direct-current gear motor to drive the vertical movement device and the circular movement device to achieve spatial spiral movement of the rubber tapping blade along a natural rubber tree trunk so as to achieve rubber tapping operation of a human-simulated rubber tapping track. Through the arrangement of the vertical movement device and the circular movement device, a circular movement and vertical movement cooperative operation mode is adopted, and the rubber tapping knife can conduct spatial spiral movement of a human-simulated rubber tapping track along a natural rubber tree trunk.

The invention relates to the technical field of plastic granulating equipment, in particular to a novel plastic grain hot cutting machine head. The novel plastic grain hot cutting machine head comprises a machine head main body; one end of the machine head main body is provided with a feeding port; a neck mould is embedded in the other end of the machine head main body, and the center of the neck mould is connected with a centering shaft in a threaded mode; the exterior of the centering shaft is sleeved with chain wheels, springs and jam nuts in sequence, wherein the chain wheels are installed near the machine head main body; a blade is installed on a discharging port of the neck mould; and a heating ring is installed at the outer ring of the machine head main body. According to the novel plastic grain hot cutting machine head, the structure is simple, the design is reasonable, the operation is simple and convenient, the blade cuts off strip materials, the springs can guarantee that the blade is tightly attached to the neck mould to cut off the squeezed strip materials while the strip materials are hot, the operation is stable, the service life is long, frequent maintenance and frequent part replacing are not needed, and the use cost is lowered.

The invention provides an upper supporting roll balancing device for a rolling mill, which comprises a carrying pole beam, a balance hanging board and a guide lifting cylinder, wherein the carrying pole beam is arranged above an upper beam of the rolling mill, the balance hanging board is connected to the carrying pole beam, and the guide lifting cylinder is connected to the balance hanging board. By adopting the upper supporting roll balancing device provided by the invention, the frequency of regulating the guide lifting cylinder can be reduced, and the service life of a hydraulic cylinder is prolonged.

A robot walking structure and a robot having the same are provided, include connecting post assemblies, A link post assembly include a link post, A lead screw, a slide mechanism and a first drive motor, the connecting column is hollow structure, A lead screw is arrange in that connecting column, A first drive motor is connected to the lead screw to drive the lead screw to rotate, The slider mechanism is arranged on the lead screw. The slider mechanism comprises a moving seat, an elastic member and a connecting block. The moving seat is provided with threads adapted to the lead screw. The elastic member is arranged between the connecting block and the moving seat. The moving seat and the connecting block can be relatively moved. A traveling wheel assembly, the traveling wheel assembly beingarranged on the connecting post assembly; The pressing assembly is connected with the connecting block. The technical proposal of the invention effectively solves the problem that the robot walking structure in the prior art can not walk smoothly on the line.

The invention relates to a forming manufacturing machining machine and a machining method for a low-voltage insulator. The forming manufacturing machining machine comprises a fixing table board, a mounting frame, a pushing pressing mechanism and a material placing mechanism, wherein the upper end of the fixing table board is provided with the mounting frame, the lower end of the mounting frame isprovided with the pushing pressing mechanism, the lower end of the pushing pressing mechanism is tightly attached to the upper end of the material placing mechanism, the material placing mechanism ismounted on the fixing table board, blanking openings and material placing grooves are uniformly formed in the fixing table board in the circumferential direction of the fixing table board, the blanking openings and the material placing grooves are arranged at intervals, and the blanking openings and the material placing grooves each are of a circular structure. According to the forming manufacturing machining machine, through the common cooperation of the pushing pressing mechanism and the material placing mechanism, the operation of grinding the outer surface of the hexagonal low-voltage insulator is completed; and a grinding frame matched with the shape of the low-voltage insulator is arranged on the material placing mechanism in advance, so that it is guaranteed that the grinding frameis attached to the surface of the low-voltage insulator without repeated position adjustment of the material placing mechanism before grinding, the grinding efficiency is effectively improved, and thegrinding effect is guaranteed.

The invention relates to tools for cleaning the surfaces of rolls, in particular to a scraper for sink rolls in zinc pots. The scraper for the sink rolls in the zinc pots mainly solves the technical problem that a traditional common scraper for sink rolls in zinc pots is incapable of discharging scraped zinc dross out of a 'V' area. The technical scheme includes that the scraper for the sink rolls in the zinc pots is characterized in that a scraper body is of an 'arch'-shaped cavity structure, the radian of the 'arch'-shaped structure matches with that of the roll surface of a cleaned sink roll in a zinc pot, the 'arch'-shaped structure is in sleeve connection with a scraper base through a 'V'-shaped fixing support and provided with an upper scraper blade and a lower scraper blade, dross guide holes in two rows are arranged on a recessed surface of the 'arch'-shaped cavity structure with the blades mounted thereon, and two dross filtering plates are arranged on two sides of the 'arch'-shaped structure. The scraper for the sink rolls in the zinc pots is mainly used for cleaning bonded dross on roll surfaces of the sink rolls, stabilizing rolls and the like in the zinc pots in cold-rolled hot galvanizing and hot-dipped aluminum-zinc production processes.