328results about How to "Fully filled" patented technology

The invention relates to the technical field of automobile part manufacturing, and provides an automobile plastic part injection molding machine which comprises a left mold and a right mold which are arranged in a matched mode, an exhaust groove is formed in the parting surface of the left mold so as to exhaust gas in a mold cavity during mold closing, a sliding groove communicated with the exhaust groove is formed in the parting surface of the left mold, and the exhaust groove is communicated with the sliding groove. A pressure control plate is slidably connected into the sliding groove and can move in the extending direction from the sliding groove to the exhaust groove to the mold cavity so as to gradually increase the pressure in the mold cavity. The injection mold overcomes the defects in the prior art, is reasonable in design and compact in structure, and after the mold is closed and molten raw materials are injected, the pressure control plate can be pushed into the exhaust groove, so that the pressure in the mold cavity is gradually and uniformly increased, the molten raw materials are promoted to fully flow and fill various tiny corners of the mold cavity, and meanwhile, no bubble and no defect exist in an injection molding part; and therefore, the overall quality and precision of an injection product are remarkably improved.

The invention relates to the technical field of metal sliding bearings, and provides a liquid metal sliding bearing with high sealing performance, which comprises a mandrel, a graphite sealing assembly, a flange and a shaft sleeve, and further comprises a ternary gallium-based liquid metal and a silicon carbide ceramic coating, wave-shaped check rings are arranged among the multiple graphite rings at intervals, initial contact loads are provided through the wave-shaped check rings, the graphite rings and the flange are tightly attached, static sealing with excellent performance is formed in the static state, and the fit clearance between the mandrel and the shaft sleeve is filled with ternary gallium-based liquid metal. A silicon carbide ceramic coating is plated at the matching position of the mandrel and the flange, and a silicon carbide ceramic coating is also plated at the matching position of the mandrel and the shaft sleeve. By using the graphite ring, the ternary gallium-based liquid metal and the silicon carbide ceramic coating, the liquid metal has good fluidity, so that the interface can be fully filled, the liquid metal is not easy to volatilize, the lubricating effect is better, the friction factor is low, and the wear resistance is better.

The invention discloses an in-situ test method based on shield butt joint curtain grouting, which realizes complete circle crossing of grout injected from each pipeline by designing the arrangement circle number and length of curtain grouting pipelines, and ensures that the surrounding rock grouting reinforcement range meets the design requirement by adopting the minimum number of curtain grouting pipelines, so that a surrounding rock water system channel is fully filled, and the construction period is shortened. A stable water-free environment is provided for subsequent excavation, and the problems that in the prior art, a theoretical calculation basis is lacked, the shield butt joint section surrounding rock reinforcing range is affected, the slurry crossing quality problem is caused by too large pipeline spacing arrangement, and the reinforcing and water stopping effect of butt joint section surrounding rock is remarkably affected are effectively solved. Meanwhile, a sensor is preset in a drilling hole within the grouting range, formation pressure response caused by grout pressure and formation temperature change caused by grout hydration heat in the grouting process are monitored in real time, and data support is provided for selection of grouting parameters in a formation grouting reinforcement project.

The invention discloses a self-adaptive control method for underground coal mine hole sealing and grouting, and belongs to the technical field of well hole packing. The method comprises the steps that plugging bags are sequentially installed at the cross sections of two drill holes of an underground coal mine working face, compressed air is injected into the plugging bags, and a cylindrical space between the bags is filled with multi-stage coal powder distribution materials in a layered mode and compacted; mixing ordinary Portland cement, a composite expanding agent, a carboxyl water reducer, a hydroxypropyl methyl cellulose stabilizer and water according to a preset ratio, and screening; stepwise pressure injection is implemented, and the grouting pressure and rate are regulated and controlled in a variable-rate climbing mode, a constant-pressure variable-speed mode and a proportional attenuation mode; and constant-temperature and constant-humidity maintenance is conducted on the grouting completion area, so that the desorption value of the drilling cuttings is reduced to a target value. According to the scheme, the grouting process parameters can be optimized, and the grouting quality is improved.

The invention relates to the technical field of batteries, and discloses a riveting top cover, a battery cell cover plate and a battery cell. Wherein the riveting top cover comprises a riveting block and a pole column, the riveting block is provided with a through hole, the through hole comprises a matching hole, a secondary riveting hole and a main riveting hole which are coaxially arranged in sequence, the pole column comprises a base and a protruding part arranged on the base, the protruding part is provided with a matching section, a secondary riveting section and a main riveting section which are in one-to-one correspondence with the matching hole, the secondary riveting hole and the main riveting hole, and the matching section, the secondary riveting section and the main riveting section are in one-to-one correspondence with the matching hole, the secondary riveting hole and the main riveting hole. The first annular cavity is reserved between the secondary riveting section and the secondary riveting hole in the pre-assembly state, the second annular cavity is reserved between the main riveting section and the main riveting hole, and the first annular cavity and the second annular cavity respectively reserve material expansion spaces for the secondary riveting section and the main riveting section. Therefore, part of the first annular cavity can be filled with the secondary riveting section after the secondary riveting section expands under the action force, the phenomenon that the riveting block is locally expanded or deformed due to expansion of the secondary riveting section in the traditional riveting process is avoided, and the yield of the riveted top cover is improved.

The invention provides a semiconductor device and a preparation method thereof. According to the preparation method of the semiconductor device, after a silicon germanium groove structure is formed, a sacrificial layer is adopted as a sacrificial medium, and a hard mask layer is formed on the surface of each exposed gate structure so as to fill the height difference of the surfaces of the gate structures. And carrying out planarization treatment on the hard mask layer by adopting a chemical mechanical polishing process, so that the heights of the gate structures are recovered to the same horizontal plane. Based on this, the gate structures with the same height not only are beneficial to carrying out chemical mechanical grinding of a larger window by adopting the same load parameter in the subsequent preparation process, but also are beneficial to etching and cleaning the pseudo gate and fully filling the polycrystalline silicon in the subsequent technological process of removing the pseudo gate and filling the polycrystalline silicon; and a better process effect is ensured, so that ideal key parameters can be obtained, and the device yield is improved.

The invention provides a wear-resistant super-hydrophobic coating and a preparation method thereof. The preparation method comprises the following steps: (1) preparing a porous structure coating which comprises a dispersion liquid of a micron-scale filler, resin and an auxiliary agent; (2) spraying the porous structure coating prepared in the step (1) on the surface of a base material by using a spraying technology to construct a stone-like paint or honeycomb-like firm porous network structure framework; (3) preparing a hydrophobic modified nanoparticle dispersion liquid; and (4) a hydrophobic modified nanoparticle dispersion liquid is sprayed on the porous network structure framework by using a spraying technology, the nanoparticles are embedded into the porous network structure framework, and the water contact angle of the composite coating is 158 degrees. The composite coating has high mechanical strength and excellent super-hydrophobic performance, and is endowed with wide application prospects.

The invention provides an ultra-thin meta-aramid fibrid and a preparation method and application thereof, the preparation method comprises the following steps: (1) preparation of a meta-aramid resin solution: adding isophthaloyl dichloride and m-phenylenediamine into a solvent for polymerization reaction, neutralizing, filtering and diluting to obtain the meta-aramid resin solution; (2) preparation of meta-aramid fibrid: coating a substrate with the prepared meta-aramid resin solution to obtain an ultra-thin resin coating, allowing the ultra-thin resin coating to enter a coagulating bath along with the substrate to be coagulated and separated out to obtain an ultra-thin fiber layer, allowing the ultra-thin fiber layer to go out of the coagulating bath and then to be subjected to high-pressure hydraulic impact crushing, and then washing to obtain the meta-aramid fibrid. The ultra-thin meta-position aramid fiber fibrid is obtained. By adopting the preparation method provided by the invention, the ultra-thin meta-position aramid fibrid can be prepared, the thickness of the ultra-thin meta-position aramid fibrid is as low as 0.3-2 microns, the thickness and shape of the fibrid are regular and uniform, the membranous structure is rich, and the thickness size of the ultra-thin meta-position aramid fibrid can be accurately controlled.

The invention relates to the field of smooth blasting construction, in particular to an energy-gathered water pressure smooth blasting water bag fixing and releasing device which comprises a plate body, notches are formed in the lower edges of the two ends of the plate body, the notch in one end of the plate body is rotationally connected with a driving wheel, and the notch in the other end of the plate body is internally rotationally connected with a driven wheel. A conveyor belt is sleeved between the driving wheel and the driven wheel, an upper-layer belt body of the conveyor belt is located in the plate body, and a lower-layer belt body of the conveyor belt is located on the lower surface of the plate body. According to the designed water bag fixing and releasing device, firstly, in the aspect of water bag filling installation, it can be guaranteed that a water bag is safely pushed into a shot hole, meanwhile, pushing and filling installation of other blasting materials can be easily and relatively easily achieved according to the water bag filling installation position and the operation panel body, and the water bag fixing and releasing device can also be smoothly achieved; the rod-shaped blasting material of the energy-gathering pipe is smoothly pushed into the blast hole, and the non-rigid stemming can also be ensured in the pushing process, so that the blockage of the blast hole is ensured.

The invention relates to the technical field of additive manufacturing, and discloses a 3D printing continuous fiber reinforced composite material path planning method based on the absolute maximum principal stress direction, and the method comprises the steps: building a three-dimensional model of a to-be-formed structural member, carrying out the slicing processing of the three-dimensional model, and obtaining a two-dimensional model of the to-be-formed structural member and the geometric characteristics of the two-dimensional model; material parameters and load constraints are set for a to-be-formed structural part needing additive manufacturing according to the requirements of forming materials and structural working conditions, finite element simulation is carried out, and a finite element simulation calculation result of a unit is exported; on the basis of a finite element simulation calculation result, an original contour line based on the stress direction is obtained through calculation; and on the basis of the calculated contour line in the stress direction, the additive manufacturing path of the to-be-formed structural part is obtained. The effect of improving the mechanical property of the continuous fiber composite material structure is achieved, and the mechanical property of a composite material component is improved on the premise of the same fiber content.

The utility model provides a shear key for a laminated plate, the laminated plate and a sandwich plate, and belongs to the field of fabricated buildings, the shear key is arranged on a prefabricated bottom plate of the laminated plate, so that the shear resistance and tension resistance of the prefabricated bottom plate and a cast-in-place layer are improved; the main body and the support legs can be reversely tied and fixed on the laminated slab through the tie mounting pieces, the structure is simple, and the mounting is convenient.

The invention discloses MgAl ply rolling composite brazing filler metal and a preparation method and a brazing method thereof, belongs to the technical field of magnesium alloy welding materials, and solves the technical problems that magnesium alloy brazing filler metal prepared through a smelting method is insufficient in welding strength, and the thickness of the brazing filler metal is difficult to reduce through secondary machining before welding. According to the solution, Mg rolled plates and Al rolled plates are manufactured through hot rolling after being staggered and stacked according to an Al rolled plate-Mg rolled plate-Al rolled plate sandwich structure, the lengths and the widths of the Mg rolled plates and the Al rolled plates are the same, the thicknesses of the Mg rolled plates and the Al rolled plates are both 0.4-0.6 mm, the thickness of the MgAl pack rolling composite brazing filler metal does not exceed 500 micrometers, the melting temperature is 437-455 DEG C, and the brazing temperature is 460-500 DEG C. The preparation technology is simple, the low-melting-point eutectic structure of the MgAl ply rolling composite brazing filler metal can be generated in a diffusion mode in the brazing process, and brazing filler metal preparation and brazing processes are achieved in one step.

The preparation method comprises the following steps: firstly, adding flaky, fibrous and granular solid flame-retardant fillers with large particle size difference into water-based resin diluted by clear water, uniformly mixing and stirring, and then spraying or brushing on the surface of a base material, therefore, a coating with sponge-like porous and capillary channel intercommunication structures inside and on the surface is formed on the surface of the base material. Secondly, siloxane is dissolved in a solvent and evenly brushed or sprayed on the surface of the coating, and the siloxane permeates into the coating through the holes and the capillary channels; thirdly, dispersing macromolecular resin and inorganic nanoparticles in a solvent, stirring to form a uniform dispersion liquid, and then infiltrating the macromolecular resin and the inorganic nanoparticles into the pores and capillary channels wrapped and modified by siloxane in a spraying or brushing manner, and drying at room temperature to obtain the flame-retardant, super-hydrophobic, anti-seepage and anti-fouling multifunctional coating material.

The invention discloses a sole single-mold forming mold and a forming method thereof, and relates to the related field of sole mold forming, the sole single-mold forming mold comprises a fixed block, the bottom position of the fixed block is fixed to the horizontal plane through a bolt, and a sole mold body capable of forming two at one time is installed in the fixed block and a movable block; the rapid cooling mechanism achieves rapid cooling work in the fixed block and the fixed mold block, and the rapid cooling mechanism can act on the oscillation mechanism to achieve sufficient filling of the blank in the shoe sole mold body in the groove of the shoe sole mold body. According to the sole single-mold forming mold capable of achieving one-to-two forming and the forming method of the sole single-mold forming mold, the rapid cooling mechanism is arranged, so that cooling of the conveying pipe can be accelerated, in addition, through cooperative arrangement of the oscillation mechanism, blanks filled in the fixed block and the fixed mold block can be fully mixed, and the forming efficiency is improved. Therefore, the phenomenon of gaps in sole forming is avoided.

The invention discloses a treatment method for solidifying a karst cave filling body through microorganisms in the construction process of a pipe-following pile while drilling in a karst area. The treatment method mainly comprises a grouting hole, a grouting device, a grouting pipe, a high-pressure spray head and a tool pipe-following drilling machine while drilling, wherein the tool is matched with construction. According to the scheme, a reinforcing layer is formed on the inner wall of the karst cave through a method for solidifying karst cave cracks through microbial induction, and the karst cave is reinforced through pretreatment. The reinforcing layer formed through microorganism induction has good watertightness, it can be guaranteed that when cement paste is poured in the treatment process, the whole karst cave is fully filled with the cement paste, rubbles and clay components, and after the karst cave is pretreated and reinforced, the reinforcing layer penetrates through the karst cave to enable the pile bottom to reach the lower solid soil layer so that the bearing capacity of the pile bottom of the pipe pile while drilling can be guaranteed; and smooth proceeding of the construction process of the pipe pile while drilling is ensured, and a good reinforcing effect is achieved.

The utility model relates to a battery pack filling assembly, a battery pack and electric equipment, the battery pack filling assembly is suitable for being filled in a gap between a battery cell group of the battery pack and a beam of a tray of the battery pack, the battery pack filling assembly comprises a support and a partition plate, and the support and the partition plate are suitable for being sequentially arranged in the direction from the battery cell group to the beam of the tray; the partition plate is suitable for defining a glue injection space suitable for containing glue together with a beam of the tray, the support is provided with a first side and a second side which are opposite, the first side is suitable for abutting against the battery cell set, the second side abuts against the partition plate, a glue injection hole is formed in the support, a glue inlet is formed in the partition plate, and the glue injection hole is communicated with the glue injection space through the glue inlet. By using the battery pack filling assembly provided by the invention, the gaps between the battery cell groups of different battery packs and the beams of the tray can be filled, the gaps between the battery cell groups at different positions in the same battery pack and the beams of the tray can also be filled, and the battery cell groups are well supported.

The invention discloses a large-void open-graded asphalt mixture as well as a preparation method and application thereof, according to the mass percentage, the passing rate of 13.2 mm sieve pores of the large-void open-graded asphalt mixture is 95-100%, the passing rate of 9.5 mm sieve pores of the large-void open-graded asphalt mixture is 39.2-39.6%, the passing rate of 4.75 mm sieve pores of the large-void open-graded asphalt mixture is 7.0-7.2%, and the passing rate of 2.36 mm sieve pores of the large-void open-graded asphalt mixture is 6.2-6.4%. The large-porosity open-graded asphalt mixture is prepared from the following components in parts by mass: 6.0 to 6.2 parts of high-viscosity and high-elasticity modified asphalt, 0.3 to 0.5 part of basalt fiber, 95 to 105 parts of mixed aggregate and 0 to 2 parts of mineral powder, the mixed aggregate comprises the following components in parts by mass: 45-50 parts of a first coarse aggregate with the thickness of 10-15mm, 45-50 parts of a second coarse aggregate with the thickness of 5-10mm and 5-10 parts of a fine aggregate with the thickness of 0-3mm. According to the open-graded asphalt mixture with the large void ratio, the technical problems that in the prior art, a drainage asphalt pavement formed by paving the open-graded asphalt mixture with the large void ratio is poor in pavement performance such as drainage performance, rutting resistance and cracking resistance and poor in durability are effectively solved.

The utility model relates to a polypropylene hollow plate forming mould which comprises a base, a rotating seat, springs, a mould carrying plate and forming mould main bodies, the rotating seat is rotatably arranged on the base, a plurality of springs are circularly arranged on the top side of the rotating seat, the mould carrying plate is arranged on the top sides of the springs, and a plurality of forming mould main bodies are arranged on the mould carrying plate at equal intervals. Supporting legs are installed on the periphery of the bottom side of the base. The motor works to drive the rotating base to rotate, then the mold carrying plate connected with the spring rotates synchronously, the position of the forming mold body is adjusted, meanwhile, during injection molding, the pulsating electromagnet is powered on to generate magnetic force, the magnetic force of the pulsating electromagnet is changed, and then the adsorption force generated between the pulsating electromagnet and the iron base of the mold carrying plate is changed; and the mold carrying plate vibrates and shakes the forming mold main body through the springs, so that the forming mold main body is fully filled with polypropylene in a molten state, and the product quality of the polypropylene hollow plate is improved.

The utility model relates to the technical field of die-casting dies and discloses a multi-stage exhaust structure of a die-casting die, which comprises a movable die core and a cylindrical insert arranged on the movable die core, and an annular end face, an annular groove, a first-stage overflow groove and a second-stage overflow groove are sequentially arranged on the end portion of a cavity of the cylindrical insert from outside to inside. A third-stage overflow groove located on the periphery of the annular deep groove is formed in the movable mold core, a first exhaust hole is formed in the first-stage overflow groove, a second exhaust hole is formed in the second-stage overflow groove, a third exhaust hole is formed in the third-stage overflow groove, and a plurality of fourth exhaust holes are formed in the annular end face. By arranging the multi-stage exhaust structure, the multi-stage overflow grooves and the exhaust holes which are reasonably arranged in the die-casting die, gas in the die is timely and effectively exhausted, and molten aluminum can smoothly flow into and fill a complex tooth position structure, so that the problem of insufficient casting caused by air trapping in a traditional die is solved; all parts of a piston product can be fully filled, and the compactness and integrity of the product are improved.

The invention provides a method for preparing a Cu-Al2O3-EP mixed corrosion-resistant coating, which comprises the following steps: carrying out surface treatment on a base material, and sequentially grinding, polishing, cleaning, drying and sandblasting to obtain a base material to be sprayed; the preparation method comprises the following steps: mechanically mixing Cu powder, Al2O3 ceramic particles and epoxy resin EP powder to obtain cold spraying prefabricated powder; and the prefabricated powder is subjected to low-pressure cold spraying to a to-be-sprayed base material, after the coating is cooled and cured, polishing and correction are conducted, and the Cu-Al2O3-EP mixed corrosion-resistant coating is obtained. The prepared coating has excellent mechanical strength and corrosion resistance, has good thermal stability and toughness, and is suitable for various harsh application environments.

The present invention discloses a dissimilar material laser additive-welding device and method based on gradual transition, belonging to the field of laser additive welding technology. The dissimilar material laser additive-welding device based on gradual transition is provided with a fixing mechanism and an additive welding mechanism above the workbench, a multi-source laser welding head is provided on the mounting plate of the additive welding mechanism, and a plurality of powder feeding tubes are provided on both sides of the multi-source laser welding head. The powder feeding tube contains a mixed powder containing two dissimilar material alloy elements, and the proportion of the base material powder in the mixed powder decreases gradually from one end close to the base material material to the other end; a height adjustment structure for adjusting the height of the multi-source laser welding head is provided on the mounting plate. The dissimilar material laser additive-welding device and method based on gradual transition described in the present invention can solve the existing problems of low connection efficiency and insufficient joint strength of dissimilar metal materials, and improve the welding quality of dissimilar thin-walled metals.

The invention relates to a welding method of a large-size tungsten-silicon alloy target material, which comprises the following steps: a back plate and a tungsten-silicon target material are respectively machined, the welding surface of the back plate is sequentially and concentrically provided with an assembly groove and a welding flux groove from top to bottom, the diameter of the welding flux groove is smaller than that of the target material, and a pretreated back plate and a pretreated target material are obtained; filling solder in a solder groove of the pretreated back plate, coating the solder on the welding surface of the pretreated target material, then heating the back plate and the target material to melt the solder, and then respectively performing infiltration treatment on the welding surfaces of the back plate and the target material to obtain the infiltrated back plate and target material; and the infiltrated back plate and the target material are assembled to obtain a target material assembly, the target material assembly is pressurized and then cooled, and the welded target material assembly is obtained. According to the welding method provided by the invention, the welding bonding strength of the target material and the back plate can be effectively improved, the target material assembly is prevented from being unsoldered and cracked, and deformation caused by welding is reduced.

The utility model relates to the technical field of injection molds, and discloses a large complex plastic product sectional type injection mold which comprises a base, a lower mold is fixedly connected to the middle of the upper end of the base, a water tank is arranged at the lower end in the lower mold, and a refrigerator is arranged on the end face of one side of the water tank. A heat absorbing plate is arranged on the outer side of the upper end in the lower die, and heat pipes are evenly arranged at the lower end in the heat absorbing plate at intervals. When the mold is used, the arranged servo motor drives the spiral blades at the four corners to rotate, plastic can be uniformly conveyed into the injection molding cavity, full filling is ensured, bubbles or cavities are avoided, the quality and appearance of products are improved, meanwhile, the filling speed in the injection molding process can be increased, and the production efficiency is improved. The production efficiency is improved, the period is shortened, the yield is increased, stress and deformation in the plastic filling process are reduced, process defects are reduced, and the product quality stability is improved.

The invention belongs to the technical field of metal processing, and particularly relates to a special-shaped pipe inner expansion type drawing die and a forming method.The special-shaped pipe inner expansion type drawing die comprises a die body in a polygon frustum shape, the die body sequentially comprises an inlet section, a forming section and an outlet section, and the maximum radial size of the inlet section is smaller than the inner diameter of a pipe blank; the maximum radial size of the outlet section is smaller than the inner diameter of a target pipe; at least one edge of the forming section is provided with spherical grooves, the spherical grooves are at least formed in the head end and the tail end of the edge, detachable steel balls are arranged in the spherical grooves, the steel balls are in rolling contact with the inner wall of the pipe blank in the drawing process, and the other edges of the forming section are chamfered; the problems that an existing mold is serious in abrasion, frequent in replacement and high in replacement cost in use, the pipe wall at the corner of a special-shaped pipe manufactured through the existing mold is insufficiently filled, and the quality of the formed pipe is poor are solved.

The present invention discloses a suspension gap sensor for medium and low speed maglev trains, wherein the shell comprises a first shell part and a second shell part which are arranged in an L shape, wherein the other end of the first shell part away from the second shell part is arranged as an arc-shaped annular wall; the control unit is fixedly installed in the second shell part; the probe unit comprises a gap measuring coil group, a probe circuit board and a coil skeleton which are fixed in the first shell part in sequence from top to bottom, wherein the other side of the coil skeleton away from the control unit is arranged as a first arc-shaped end matched with the arc-shaped annular wall, the probe circuit board is electrically connected to the control unit, and the end of the probe circuit board is arranged as a second arc-shaped end; the gap measuring coil group comprises a gap measuring coil I and a gap measuring coil II, wherein the gap measuring coil I is arranged as an annular structure, and the gap measuring coil II is a rectangular structure; an epoxy resin glue layer is filled in the first shell part, and with the above arrangement, there is no dead angle for glue injection, thereby reducing the risk of glue layer cracking caused by curing stress.

The present application relates to the technical field of endoscopes, and the present application discloses an endoscope imaging component and an assembly method, an endoscope front end component and an endoscope. The endoscope imaging component includes: an image sensor, a boss is provided at the top of the image sensor; a lens component, a groove is provided at the bottom of the lens component, and the inner peripheral wall of the groove contacts the outer peripheral wall of the boss to form a radial seal; a raised portion, the bottom end of the raised portion is axially abutted against the top of the image sensor, and the inner side wall of the raised portion includes an inclined surface facing the image sensor side; an adhesive, the adhesive is circumferentially arranged on the periphery of the boss, at least bonding the top of the image sensor, the inner side wall of the raised portion, the outer peripheral wall of the boss and the bottom of the lens component; wherein, during the axial docking process between the top of the image sensor and the bottom of the lens component, the inclined surface can push the adhesive on its moving path toward the outer peripheral wall of the boss. In the embodiment of the present application, by setting the inclined surface and the boss, the colloid is evenly distributed during bonding, and loose connection of the imaging component is avoided.

The invention discloses a surfacing welding control system, which relates to the technical field of surfacing welding control, and comprises a workpiece scanning unit, a path planning unit, a spacing control unit, a speed control unit and a surfacing welding execution unit; the workpiece scanning unit performs appearance scanning and recognition on the surfacing welding workpiece, obtains seven views of the surfacing welding workpiece and establishes a three-dimensional model of the workpiece, and establishes a workpiece database according to the three-dimensional model and surfacing welding data of the historical surfacing welding workpiece; in this scheme, the surfacing welding surface of the workpiece is scanned and recognized to mark the crack missing parts, and then different surfacing welding methods are used according to different positions on the surfacing welding surface to perform surfacing welding filling and covering, so that the surface of the workpiece after surfacing welding is smoother, which is beneficial to improving the quality of the workpiece after surfacing welding.

The utility model discloses an endoscope head end which comprises a lamp bead and a lamp wire assembly, the lamp wire assembly comprises two single-core enameled wires, the first ends of the single-core enameled wires are connected with the lamp bead, and the second ends of the single-core enameled wires are used for being connected with a power source. According to the endoscope head end provided by the utility model, the single-core enameled wire is adopted to replace a multi-strand stranded electronic wire in the prior art, the single-core enameled wire is larger than the multi-strand stranded wire, the conductor is larger than the overall cross sectional area of the cable, and the cable is easier to shape during welding.

The utility model discloses a material scraping device of a tablet press, the material scraping device is provided with a frame body and a fixing lug fixed with the frame body, and the fixing lug is used for fixing the material scraping device on the tablet press; the frame body extends in the rotating direction of the tablet press, and a blanking area, a first scraping area, a second scraping area, a third scraping area and a fourth scraping area are sequentially arranged in the extending direction. According to the utility model, the material mixing rod which is integrally formed is arranged in the blanking area, and the material mixing rod has the effect of flatly spreading and stirring raw materials in the blanking area. The first partition, the second partition, the third partition and the fourth partition all extend by a certain distance in the rotating direction, so that raw materials can be fully filled. The raw materials can be fully filled through the scraping areas, the partitions, the mixing rods and the combination of the blanking speed, and a leakage opening does not need to be formed in the fourth scraping area at the tail end.

The invention discloses a top plate anchoring agent hole entering device and a top plate anchoring agent pushing method. The roof anchoring agent hole entering device comprises a PVC pipe used for containing one or more sections of anchoring agents, the two ends of the PVC pipe are not sealed, when the roof anchoring agent hole entering device is used, a drill rod of an anchor rod drilling machine abuts against the lower anchoring agent in the PVC pipe upwards, one side of the pipe wall of the PVC pipe penetrates through an opening from top to bottom, and the width of the opening is smaller than the diameter of the anchoring agent and larger than the diameter of the drill rod of the anchor rod drilling machine. The roof anchoring agent hole entering device can solve the problem that when a roof anchor rod is constructed in a coal mine, the anchoring agent is soft and not prone to being fed into an anchor rod drill hole, it can be ensured that the anchor rod hole is fully filled with the anchoring agent, and the expected solidification effect is achieved. Therefore, the safety and the stability of a mine are improved, and the normal operation of mining operation is ensured. The anchoring agent entering hole device with the notch is used for pushing the anchoring agent, so that the anchoring agent entering hole speed can be increased, and the anchor rod construction progress is accelerated.