36results about How to "Avoid quality defects" patented technology

The utility model relates to the technical field of seamless steel tube processing, and discloses a seamless steel tube cold drawing device which comprises a base, a mounting plate is arranged above the base, four clamping mechanisms are arranged on the outer surface of the mounting plate, each clamping mechanism comprises a fixing frame mounted on the outer surface of the mounting plate, and a first motor is mounted on the outer surface of each fixing frame. The four clamping mechanisms surround the steel pipe and are matched with the first motor, the first threaded rod and the non-slip mat, pressure is evenly applied from multiple directions, meanwhile, the four electric push rods drive the top plate to jack up the inner wall of the steel pipe, the four electric push rods are matched with the four clamping mechanisms, the risk that a mold falls off is remarkably reduced, and the clamping stability is improved; the operation flexibility and applicability are enhanced, the steel pipe is effectively prevented from shaking and deviating, the quality defect is reduced, the qualified rate of finished products is improved, the shutdown overhaul frequency is reduced, the production continuity is guaranteed, in addition, potential safety hazards are eliminated, and a powerful guarantee is provided for safe production.

The invention belongs to the field of wafer processing, and discloses a wafer grinding method based on an acoustic emission signal, which can avoid the quality defect of a ground wafer, and comprises the following steps: propping a predetermined wafer against a basic grinding surface, and grinding the predetermined wafer through the relative rotation of the basic grinding surface and the predetermined wafer. An acoustic emission signal of a predetermined wafer is obtained in real time, the abutting force on the predetermined wafer is adjusted based on the acoustic emission signal, the predetermined wafer is abutted through a grinding entity, an acoustic emission sensor is embedded in the grinding entity, and the grinding entity is composed of a plurality of grinding sub-entities corresponding to different radial directions of the predetermined wafer in a matched mode. The adjacent grinding sporocarp bodies can relatively move in the vertical direction, and therefore the multiple grinding sporocarp bodies correspondingly apply different abutting force in the radial direction of the preset wafer. The invention further discloses a wafer grinding device which is used for grinding the wafer grinding method in real time.

The present application relates to the technical field of feed processing, and particularly relates to a preparation method of Maotai-flavor distiller's grains fermented feed, which comprises the following steps: drying treatment based on the moisture content of Maotai-flavor distiller's grains to obtain basic distiller's grains; determining the strain ratio of brewer's yeast, bacillus subtilis and aspergillus niger based on the tannin content of the basic distiller's grains to obtain a compound fermentation inoculant; inoculating and then fermenting; determining state evaluation parameters based on the total polyphenol accumulation rate, the dissolved oxygen consumption rate and the microbial activity index during the fermentation process, and performing qualified evaluation, and dynamically adjusting when unqualified; determining the fermentation end point based on the tannin degradation rate and the total polyphenol accumulation rate; and mixing the fermented distiller's grains with the basic feed at a mass ratio of 1% after low-temperature drying of the fermented distiller's grains. The present application realizes three-layer control of raw material evaluation, process control and end point determination, significantly improves the stability and content of functional active ingredients in the product, reduces the tannin and safety risk, and has a good intestinal health improvement effect on animals.

This invention discloses a novel electroplating method for integrated circuits, belonging to the field of semiconductor manufacturing technology. The method includes: Step 1: preparing a wafer and coating a positive photoresist layer on the wafer; Step 2: shielding the edge region of the positive photoresist layer using a shielding ring; Step 3: exposing the positive photoresist layer on the wafer, wherein the edge region is not exposed due to being shielded by the shielding ring; Step 4: developing the exposed positive photoresist layer to form a window structure on the positive photoresist layer on the wafer, while retaining the unexposed positive photoresist layer in the edge region, thereby forming a continuous region without windows in the edge region. This invention can improve the plating defects of positive photoresist at the wafer edge, enhance the quality and yield of bump fabrication and packaging, and can be applied to all bump fabrication and packaging fields.

The utility model discloses an automatic air hole pricking device for a core setting mould of an engine cylinder block sand core, which relates to the technical field of casting and comprises a bottom plate, an automatic shuttling mechanism and a molding line, an air cylinder component is mounted above the bottom plate, a pricking plate is mounted at the output end of the air cylinder component, a pricking needle is mounted on the pricking plate, and the automatic shuttling mechanism is mounted on the molding line. The automatic air hole pricking device comprises a bottom plate, an automatic shuttling mechanism is arranged below the bottom plate, a part taking robot is arranged above the automatic shuttling mechanism, a molding line is arranged below the automatic air hole pricking device, and an automatic core hanging mechanism is arranged between the automatic shuttling mechanism and the molding line. The sand core air hole pricking and core setting actions are synchronously completed through signal induction, so that the air hole pricking efficiency is improved, the quality defect caused by missing pricking of an exhaust hole to a product is avoided, and meanwhile, the number of personnel required by air pricking work is reduced.

The utility model relates to the technical field of paper cup production equipment, in particular to a feeding structure of disposable paper cup forming equipment, which comprises a feeding box and a conveyor, a feeding port is arranged at the top end of the feeding box, a guide hopper is inserted in the feeding port, a mounting frame is arranged on the inner side wall of the feeding box, a stirring component is mounted on the mounting frame, and the feeding box is arranged on the conveyor. A discharging opening is formed in the side, close to the conveyor, of the feeding box; a conveyor belt is installed on the conveyor, a limiting frame is installed on the conveyor and located over the conveyor belt, and a lower pressing roller is arranged on the limiting frame. Paper pulp is poured into a guide hopper and flows into a feeding box through the guide hopper, then a servo motor is started, an output shaft of the servo motor drives a stirring assembly to rotate, the stirring assembly comprises two stirring rods, concave-convex blocks are evenly arranged on the stirring rods, and the concave-convex blocks fully stir the paper pulp in the stirring process; impurities and particles in the paper pulp are effectively crushed and dispersed, so that the purity of the paper pulp is improved.

The utility model discloses an automobile interior decoration foamed material processing prestorage device, including lower storage jar and upper storage jar, the upper storage jar fixed connection is in the upper end of lower storage jar, the upper storage jar and lower storage jar are communicated through the intercommunication passage, be equipped with the first electromagnetic valve on the intercommunication passage, the left side of upper storage jar and lower storage jar all have the feeding hopper of intercommunication, be equipped with the first stirring subassembly in the upper storage jar, be equipped with the second stirring subassembly in the lower storage jar, the first stirring subassembly includes the vertical rod of rotation connection in the upper storage jar top, the outer wall of vertical rod is fixedly connected with a plurality of first stirring rod, the second stirring subassembly includes the crosspiece of rotation connection on the inner wall of lower storage jar left and right sides. The device can realize two component materials isolated storage, automatic proportioning mixing, and possess environmental monitoring function's prestorage device to promote the processing efficiency of automobile interior decoration foamed material and product quality, reduce production cost and artificial error.

A movable vibration and smoothing system for trestle bridge relates to the technical field of concrete vibration and smoothing, and comprises a walking trolley, a lifting device and a roller shaft type vibration and smoothing device. The walking trolley is installed on the top rail of a tunnel construction trolley, and the height of the roller shaft type vibration and smoothing device is adjusted through the integrated lifting device. The vibration and smoothing device comprises a distributing spiral shaft, a paving roller shaft, a smoothing walking roller shaft and an insert type vibrator, forming a multi-stage cooperative working mechanism. The three cooperative actions of the distributing spiral shaft, the paving roller shaft and the smoothing walking roller shaft improve the uniformity, compactness and surface flatness of concrete paving. The insert type vibrator is arranged between the distributing spiral shaft and the paving roller shaft, can immediately carry out deep layer high frequency vibration after preliminary paving of concrete, effectively removes internal bubbles and prevents quality defects. The auxiliary walking wheel ensures the consistency of the concrete surface flatness and the design elevation.

The application provides a tunnel low side wall construction method, which significantly improves the overall construction quality of the tunnel low side wall through a series of standardized and refined construction steps such as base treatment, construction joint roughening, measurement and profiling, steel binding and pre-embedded drainage, water stop installation and formwork erection, concrete pouring and vibrating, form removal maintenance and quality inspection. In particular, in the pouring link of the tunnel low side wall construction, the combination vibrating process of the innovative sub-window feeding and vibrating and the combination of the handheld vibrating rod and the flat plate vibrator significantly improves the compactness of the concrete and effectively eliminates quality defects such as honeycomb, pitted surface and air bubbles. Through the construction method, the tunnel low side wall can be standardized constructed to enhance the load-bearing capacity and anti-seepage performance of the tunnel low side wall, thereby providing a powerful guarantee for the long-term stable operation of the tunnel.

The application discloses a pipe forming treatment device and a forming treatment method thereof, and relates to the technical field of pipe production. The pipe forming treatment device comprises a feeding mechanism, a first conveying mechanism, a mold forming mechanism, a discharging mechanism, a second conveying mechanism and a shearing and chamfering mechanism. The first conveying mechanism is connected with the mold forming mechanism. The mold forming mechanism has a first station and a second station. The position of the feeding mechanism corresponds to the position of the mold forming mechanism at the first station. The position of the discharging mechanism corresponds to the position of the mold forming mechanism at the second station. The second conveying mechanism is arranged between the discharging mechanism and the shearing and chamfering mechanism. The pipe forming treatment device provided by the application can automatically realize the blow forming and shearing and chamfering of the pipe, effectively avoids quality defects of the pipe, and shortens the production cycle of the pipe.

The invention belongs to the technical field of coke oven coking, and particularly discloses a method for improving the single-oven yield of a tamping coke oven, which comprises the following steps: firstly, uniformly loading crushed and screened coal into a coal box of a tamping machine; the tamping machine is started to tamp and compact the coal in the coal box, the thickness of the tamped coal is 80 cm, and then the coal continues to be added into the coal box and tamped to enable the height of the finally tamped coal cake to be 4 m; finally, coal cakes formed after tamping are pushed into a carbonization chamber through a coke pushing machine to be heated, so that the coal cakes are dried in the carbonization chamber, and the coal cakes are converted into coke after being decomposed. Aiming at the problems of low briquette bulk density and discontinuous internal structure caused by non-uniform coal distribution at present, the invention improves the overall bulk density and structural uniformity of the briquette by optimizing a feeding mode and a briquette forming form, so as to solve the problems of low briquette bulk density, discontinuous internal structure and poor structure uniformity caused by non-uniform coal distribution during tamping in the prior art. Therefore, the single-furnace yield of the tamping coke oven is influenced.

The utility model relates to die technical field, concretely is iron tooth punch -die with many drainage grooves, including base, the both sides of base's top are equipped with the side plate, is provided with the upper die and lower die between the side plate, the bottom of upper die is equipped with the male die, the top of lower die is provided with female die, pre -place the material to be stamped on female die, the upper die downward stamping, drive male die and female die pressure, make the material to be stamped on female die stamping forming, the inside of female die is provided with the recess, the outside of recess is provided with a plurality of drainage grooves. This iron tooth punch -die with many drainage grooves, the utility model's female die sets up a plurality of drainage grooves outside the recess. In the stamping process, the material of iron tooth protruding part and other positions can be effectively drained to both sides and other effective positions, greatly reduces the waste of material. The drainage groove of reasonable design can guide the orderly flow of excess material, avoids the massive accumulation of material in protruding part and other key areas.

The application provides a battery through-wall welding pretreatment device and method, and belongs to the technical field of battery production. The battery through-wall welding pretreatment device comprises a frame body, a pre-pressing clamp, a temperature testing assembly and a resistance testing assembly. The pre-pressing clamp comprises two clamp plates which are oppositely arranged and used for clamping on both sides of the intermediate pole column. The temperature testing assembly comprises a semiconductor heating sheet and an infrared detector. The resistance testing assembly comprises a pre-pressing welding point arranged on the working surface of the clamp plate and a resistance tester arranged on the frame body. The battery through-wall welding pretreatment device provided by the application can detect and adjust the temperature of the intermediate pole column through the semiconductor heating sheet and the infrared detector, and detect the resistance value of the intermediate pole column through the pre-pressing welding point and the resistance tester. The intermediate pole column after pretreatment meets the requirements of temperature and resistance value, and then directly undergoes through-wall welding. The welding quality and efficiency of the through-wall welding can be improved.

The utility model relates to the field of hot forging forming processing, and discloses an anti-deviation guide structure of a hot forging blank conveying track, which comprises a rack, the inner side wall of the rack is rotatably connected with a conveying roller, an anti-deviation mechanism is arranged on the surface of the upper end of the rack, a dust blowing assembly is arranged on the surface of the front end of the rack, and the dust blowing assembly is connected with the conveying roller. And the anti-deviation mechanism comprises a contact roller, sliding blocks are fixedly connected to the two sides of the contact roller, the sliding blocks are elastically connected to the side wall of the inner side of the rack through springs b, and a connecting rod is fixedly connected to the lower surface of the contact roller. According to the utility model, the linkage design that the contact roller is pressed down to drive the two groups of pressure springs to approach synchronously is adopted, the guide action is automatically triggered when a blank enters, an independent driving source does not need to be additionally arranged, the equipment structure is greatly simplified, and the energy consumption and the maintenance cost are reduced; and meanwhile, the guide structure for elastic clamping can adapt to hot forging blanks with different specifications and different sections, and production changing adaptation can be completed without shutdown adjustment.

The utility model relates to the technical field of foundation pit discloses a land foundation pit for highway-railway dual-purpose sea-crossing bridge, including foundation pit body, the inside fixedly connected with installation base of foundation pit body, the inside of installation base has set up the installation groove, the inside fixedly connected with auxiliary rod of foundation pit body, the inside sliding connection has sliding plate of auxiliary rod, the inside fixedly connected with first pipeline of foundation pit body, the inside of first pipeline is provided with second pipeline, the outside of second pipeline is provided with locking assembly, the outside of locking assembly sets up one end at first pipeline, locking assembly includes support shell, sliding block, sliding ring, support frame, support frame and first spring. In the utility model, first, the second pipeline is inserted into the first pipeline, and finally the purpose of external connection of the second pipeline is realized, the external connection pipeline can discharge the accumulated water, rainwater and construction wastewater in the foundation pit, keep the foundation pit dry, and avoid affecting the construction quality due to the accumulated water.

The utility model discloses a kind of ground wire through floor waterproof metal protection pipe, it is related to building electromechanical lightning protection and grounding technical field, including bottom plate, fixed hole, fixed iron nail, ground wire through square hole, metal protection pipe, waterproof ring wing, bolt hole, bolt, jumper yellow-green bicolour line and ground wire;Fixed hole is set in bottom plate edge;Ground wire through square hole is set on bottom plate, and penetrates bottom plate;Metal protection pipe is welded on bottom plate, and welded waterproof ring wing, bolt hole and bolt are equipped on metal protection pipe upper portion;Ground wire passes through metal protection pipe by ground wire through square hole, and inlay fills fire clay, bolt hole and bolt are equipped on ground wire;Jumper yellow-green bicolour line is effectively fixed on metal protection pipe and ground wire by bolt hole and bolt, forms through guide.The utility model can effectively solve that ground wire is easily damaged or dropped by accidental impact, and the periphery of protection pipe is easily leaked, fireproof plugging is not strict, and the problems such as pre-buried positioning are not accurate.

A production process for ultrapure ferrite strips that does not require a strip leveling machine to solve the strip shape problem includes: 1) controlling the strip shape at the edge of the rolling mill within ±20mm; 2) furnace cooling: a perforated plate is installed above the strip, with cooling holes evenly distributed on the plate surface. Multiple pressure-reducing water pools are installed above the perforated plate. Cooling water is first filled in the pressure-reducing water pools, then overflows onto the upper surface of the perforated plate, and then evenly sprinkled onto the surface of the steel plate through the cooling holes; 3) adjusting the finishing mill roll crown height to 0.04~0.07mm; simultaneously adjusting the finishing mill tension = (unit tension * strip width * strip thickness) * [1 + (14%~16%)]; 4) no strip leveling machine is used after the strip exits the finishing mill. This invention achieves the ability to solve strip shape problems in continuous rolling lines without using a strip leveler by controlling the strip shape exiting the rolling mill, changing the water cooling method in the furnace cooling section, and optimizing the configuration parameters of the finishing machine. It avoids the quality defects of attachments and uneven stripes in production lines using strip levelers, and saves the related costs incurred by using strip levelers.

The utility model provides a detachable constructional column concrete pouring device which comprises a constructional column formwork, a hopper and a knife-shaped baffle, a material conveying opening is formed in the side end of the hopper, the material conveying opening corresponds to a feeding opening in the constructional column formwork, and slurry can be conveyed to the feeding opening; the knife-shaped baffle is movably arranged at the material conveying opening and can cut off part or all of a channel between the material conveying opening and the feeding opening. Through the arrangement of the knife-shaped baffle plate, the extra cost and time consumption caused by chiseling and repairing in the traditional process are reduced, the influence of the chiseling and repairing link on the appearance quality is reduced, the construction progress is accelerated, the generation of waste concrete and repairing materials is reduced, and the requirements of environmental protection and sustainable development are met; through the double fixing effects of the anchoring nails and the U-shaped hoops, the connecting stability of the hopper and the constructional column formwork can be improved, the quality defect caused by instability of the formwork or the hopper is avoided, and the construction quality is improved.

This utility model discloses a plastic extrusion strip guide traction frame, including a frame body. Multiple sets of studs are connected to the frame body. Each pair of studs movably passes through the same set of plates. Multiple sets of rods are rotatably connected to the frame body and the two sets of plates. One end of each set of rods is connected to a disc. A roller is placed between each pair of discs. Multiple sets of grooves are formed in the frame body and the two sets of plates, and studs are placed within each of these grooves. This utility model uses a scraper that works in conjunction with the roller to remove residual debris and dirt from the roller. The scraper's arc-shaped design fits the roller surface, and during rotation, it closely adheres to continuously scrape away particles, preventing impurities from being pressed into the extrusion strip at the source, reducing surface contamination or indentation defects. The spacing and pressure can be adjusted by sliding the studs in the grooves, allowing for optimal fit based on roller wear and plastic characteristics, ensuring cleaning effectiveness and product appearance quality.

The utility model provides gantry type intelligent electroplating equipment, which relates to the technical field of metal surface treatment, and comprises a transverse frame plate, and a group of proximity switches are embedded in the right side of the top end surface of the transverse frame plate; a group of electric cylinders are fixedly mounted in the center of the top end surface of the transverse frame plate; a transverse reciprocating plate is arranged on the lower side of the transverse frame plate, and the push rod end of the electric cylinder penetrates through the transverse frame plate and is fixedly connected with the transverse reciprocating plate; through the linkage design of the proximity switch, the timing module and the audible and visual alarm, after a workpiece is electroplated and is separated from an electroplating solution, if a worker leaves the post and does not handle in time, the worker can be reminded of reworking through the audible and visual alarm to ensure that the workpiece is flushed in time so as to avoid corrosion of the residual electroplating solution, and the problem that in traditional electroplating operation, time is wasted is solved. The electroplating time is easily controlled improperly due to human factors, so that the workpiece is electroplated excessively or insufficiently, and after the workpiece is electroplated, residual electroplating liquid corrodes the surface due to the fact that the workpiece is not transferred and washed in time, so that the product quality is influenced.

The utility model discloses stable pipe screw machine equipment. The stabilizing pipe screw machine equipment comprises a lower machine base; the locking and attaching mechanism is assembled on the lower machine base and used for locking and attaching the screw to the stabilizing pipe; the fixed table is arranged on the lower machine base, and a positioning hole is formed in the fixed table; and the elastic positioning pin is arranged in the positioning hole and can extend out of or retract into the positioning hole. According to the locking mechanism, the elastic positioning pin extends out of the positioning hole to be connected with the screw hole of the product in an inserted mode, mechanical positioning constraint is formed, stable alignment of the product and the supporting platform in the assembling process is ensured, and therefore the assembling precision of the locking mechanism is remarkably improved; according to the automatic screw assembling machine, mechanism movement interference is eliminated, the stability of the product position is maintained through a dynamic positioning mechanism, the quality defect caused by positioning deviation in traditional assembling is effectively overcome, and efficient and high-precision automatic screw assembling is achieved.

The utility model provides a high-precision assembling tool for a rear-drive 8AT shafting assembly, and belongs to the technical field of automobile part manufacturing. The tool is simple in structure, easy to operate, convenient to assemble and align and high in working efficiency. A lifting rod of the tool is perpendicular to a cross rod, one end of the lifting rod is detachably and fixedly connected with the middle of the cross rod in the length direction of the cross rod, a vertical rod and a connecting rod are arranged at the two ends of the cross rod respectively, and the axis of the vertical rod and the axis of the connecting rod are both parallel to the axis of the lifting rod. The sliding sleeve is coaxially arranged on the vertical rod in a sliding and sleeving mode, an avoiding groove is formed in the lower edge of the sliding sleeve, and the insertion rod is movably sleeved with the avoiding groove in a clamped mode. The tool optimizes the hoisting structure, improves the hoisting stability, is simple and convenient to operate, is simple and quick to use and dismount, and avoids the interference problem of an original hoisting mode.

The utility model belongs to the technical field of machining and maintenance, and discloses a cutter dismounting tool which comprises a stand column, a plum blossom nut wrench and an internal hexagonal wrench, two positioning pins arranged at intervals are arranged at the first end of the stand column, the positioning pins can be inserted into cutter shaft positioning holes, an opening nut wrench is arranged at the second end of the stand column, and the opening nut wrench can be inserted into the cutter shaft positioning holes. The open nut wrench is used for screwing the cutter holder locking nut; the plum blossom nut wrench comprises a nut wrench head and a nut wrench arm which are connected, the nut wrench head is rotationally arranged at the first end of the stand column in a sleeving mode, the nut wrench head is provided with a first nut wrench hole coaxial with the stand column, and an opening of the first nut wrench hole faces the positioning pin and is used for screwing the cutter fixing nut; the internal hexagonal wrench is connected with the second end of the stand column in an included angle mode, a first internal hexagonal wrench head is arranged at one end of the internal hexagonal wrench, a second internal hexagonal wrench head is arranged at the other end of the internal hexagonal wrench, the first internal hexagonal wrench head is used for screwing a protective cover fixing screw, and the second internal hexagonal wrench head is used for screwing a top cutter fixing screw.

The utility model relates to the technical field of tunnel ditch cable trough formwork trolleys, in particular to a ditch cable trough trolley formwork device with an attached vibrator, which comprises a roof rack, the bottom of the roof rack is fixedly connected with a vertical plate, the surface of the vertical plate is fixedly connected with a cross rod, the surface of the cross rod is sleeved with a movable sleeve, and the movable sleeve is fixedly connected with the top of the roof rack. The bottom of the movable sleeve is fixedly connected with a first hydraulic rod, the bottom of the first hydraulic rod is fixedly connected with a template, the bottom of the template is fixedly connected with a module, and the top of the template is provided with an attached vibrator. By arranging the cross rod, the movable sleeve, the first hydraulic rod, the template, the module and the attached vibrator, the output end of the attached vibrator is connected with the vibrating rod through the hose, the vibrating rod is placed in poured concrete, the concrete can be vibrated, external vibrating equipment does not need to be used for vibrating the concrete, and the construction efficiency is improved. The labor amount of an operator is reduced, and the construction efficiency is improved.

This invention relates to the field of electronic component packaging, specifically to a packaging cap with an internal metal ring, a hermetic packaging shell, its preparation method, and hermetic packaging. The cap is mounted on a circuit board and is used to cooperate with leads, glass insulators, and a cap to form a hermetic package of the electronic device. The size of the cap is adapted to the electronic device to be packaged. On the inner side of the cap, there is a cavity structure protruding outwards to accommodate the glass insulator. The cap also includes a flat flash integrally formed around the edge of the cavity structure, with the bottom surface of the flash parallel to the surface of the circuit board used for packaging to ensure a close fit. Inside the cavity structure, there is a metal ring of the same height as the cavity structure. A through hole for inserting leads is provided inside the metal ring on the cap. This invention, by setting the metal ring, ensures a regular shape of the glass insulation structure after fusion sealing, avoiding stress concentration in the glass, thereby solving the problems of cracking and chipping of the glass after fusion sealing.

The utility model relates to PVC film processing technical field, and disclose a PVC film processing's pressure extending device, including work box, still include: to PVC film pressure extending handle pressure extending assembly, install in work box, the work box is fixedly connected with mounting bracket on, install dust removal assembly that removes the dust of PVC film periphery on the mounting bracket, the one side of work box is installed with dust catcher, install transmission assembly that adjusts the working range of dust removal assembly on the mounting bracket, the utility model discloses through screw rod drive upper pressure roll lifting, realize two roller spacing adjustment, adapt to different specifications film pressure extending demand, servo motor drive suction duct reciprocating swing, adjust dust removal assembly range, improve dust removal efficiency, inhale the precise alignment film edge and conveying path of mouth, effectively remove the electrostatic adsorption dust generated in the calendering process, avoid the quality defect of the subsequent process because of the particle pollution.

The utility model discloses a continuous casting spray gun atomized water spraying effect off-line detection device, and relates to the spray gun performance detection field, the continuous casting spray gun atomized water spraying effect off-line detection device comprises an operation table and a fixing plate, the upper end of the operation table is fixedly connected with a first support plate, and the first support plate is internally provided with a water inlet pipe; compared with the prior art, the spray gun testing device has the advantages that the actual operation working condition of the spray gun can be simulated through the water inlet pipe, the air inlet pipe, the first connecting pipe, the second connecting pipe and the like, so that judgment can be performed according to the atomization taper, coverage uniformity and the like of water mist, and quality defects caused by non-uniform cooling or local supercooling are effectively avoided; meanwhile, it can be ensured that the spray gun reaches the optimal performance state before being put into use officially; the movable plate can move circularly through the electric push rod, the connecting base, the guide rod and other assemblies, so that the blocking cover is cleaned, the observation blind area caused by water stain shielding is effectively avoided, and meanwhile the definition and reliability of real-time observation can be improved.

The utility model discloses a tipping paper shearing device for cutting broken lines during glue spraying, which comprises a glue spraying mechanism, a paper guiding mechanism, a path length fine adjustment mechanism, a paper cutting wheel, a hobbing cutter, a cigarette making mechanism and a rack, and the glue spraying mechanism, the paper guiding mechanism, the path length fine adjustment mechanism, the paper cutting wheel, the hobbing cutter and the cigarette making mechanism are all mounted on the rack. Tipping paper sequentially passes through the glue spraying mechanism, the paper guiding mechanism, the path length fine adjustment mechanism, the paper cutting wheel, the hobbing cutter and the cigarette making mechanism. The tipping paper cutting device has the advantages that tipping paper can be cut at the glue-free position of a broken line every time, the phenomenon of gluing of a blade is reduced, the quality defect that cigarettes are mixed with glue dirt is reduced, the sanitation maintenance difficulty of a machine knitter on a hob and a paper cutting wheel is lowered, the rotor is installed in an inner cavity of the outer rotating body, and the service life of the rotor is prolonged. The rotor is divided into three glue areas through the protruding annular baffles on the circumference of the rotor, the small baffles control opening and closing of the glue spraying channels, the glue channels are blocked when the machine stops, and glue is prevented from flowing out.

The utility model discloses a kind of leaf beating redrying online tobacco leaf removes silk mechanism, it is related to tobacco redrying technical field, each screening mechanism and the conveying structure located in conveying bin side are equipped with densely arranged along conveying path;The taker-in, shuttle knife and auger of screening mechanism are sequentially rotated and installed in conveying bin from top to bottom;The power output by drive structure is respectively transmitted to taker-in, shuttle knife and auger;Conveying bin side wall is opened discharge port corresponding to the discharge end of each auger, and conveying structure is connected below each discharge port.The utility model passes through the taker-in of taker-in structure in-depth tobacco leaf gap precision hooking mixed in tobacco leaf silk and other foreign matters, silk and other foreign matters attached to taker-in are removed using the periodic cross cooperation clearance between the taker-in structure row on taker-in and the scraper on shuttle knife during synchronous rotation of taker-in and taker-in, again by auger and conveying mechanism send off production line, can better realize the screening of silk and other foreign matters in tobacco leaf and the removal of silk and other foreign matters on taker-in, improve tobacco purity.

This invention discloses a low-temperature preparation technology for plasma-assisted hydrothermal synthesis of carbon nanotubes and its application in the field of cold cathode technology. It relates to the fields of carbon nanotube preparation and cold cathode technology, including the construction of a reaction system containing a catalyst precursor and a carbon source, and a hydrothermal reaction: the catalyst precursor is a phosphorus-free core-shell Ni-Mo-ammonium citrate complex, formed by nickel nitrate, sodium molybdate, and ammonium citrate in the order Ni... 2+ :MoO4 2‑ The reaction is carried out with a citrate molar ratio of 3:1:1.2. In this invention, phosphorus residue and catalyst agglomeration are eliminated by using a phosphorus-free core-shell catalyst, combined with a composite heteroatom source and ultrasonic-stirring dispersion process, and a three-stage pulsed plasma reaction at ≤190℃. This optimizes the quality of carbon nanotubes, eliminates the need for acid washing / annealing, and is compatible with flexible substrates. The cold cathode is fixed by a modified PET substrate and a metal-free transition layer, ultimately achieving a 1×10⁻⁶ reaction. ‑4 Achieving an on-state electric field ≤1.8V / μm, a threshold electric field ≤4.2V / μm, and a current density stability ≥90% under Pa conditions, this technology solves the problems of carbon nanotube quality, cost, substrate compatibility, and cold cathode performance in traditional technologies.