32 results about "Hot melt coating" patented technology

The invention discloses an anti-skid and noise-reduction multifunctional road hot melt coating and a gradient forming process thereof, and relates to the technical field of hot melt coatings. Comprising the following components in percentage by mass: 25-28wt% of bio-based resin, 8-12wt% of a noise reduction material, 15-20wt% of nano composite rubber particles and 5-8wt% of internally mixed reflective glass beads. The bio-based resin is used as a base material of the hot melt coating, the superfine bamboo fibers and the polyurethane elastomer are combined to serve as noise reduction materials, and honeycomb-shaped pores with the diameter of 0.1-1 micron exist in the superfine bamboo fibers, so that a coating produced by construction of the hot melt coating has good noise reduction performance; meanwhile, coarse-grade glass beads and fine-grade glass beads are introduced into the material, the coarse-grade glass beads provide basic light reflection, gaps are filled with the fine-grade glass beads to form a compact reflection layer, the coarse-grade glass beads and the fine-grade glass beads synergistically act to enable incident light to generate a composite effect of diffuse reflection and specular reflection, the retroreflection coefficient of the coating is increased by utilizing the effect, the light reflection performance in rainy days is further improved, and the safety is improved; and the hot-melt coating mostly adopts an environment-friendly material, is easy to degrade and is beneficial to environment protection.

The invention relates to the technical field of anti-yellowing, in particular to anti-yellowing lining cloth with a hot melt coating and a preparation method of the anti-yellowing lining cloth. Composite carbon dots, an anti-yellowing agent and a composite chitosan solution are adopted to prepare finishing liquid for finishing the lining cloth; the preparation method comprises the following steps: selecting furfural and urea as a carbon source and a nitrogen source, performing one-step hydrothermal synthesis to obtain a nitrogen-doped furfural-based carbon dot, and grafting an amino-terminated polyimidazolium salt antibacterial compound to obtain a composite carbon dot; wherein the amino-terminated polyimidazolium salt antibacterial compound is an amino-terminated halogen-free polyimidazolium salt antibacterial compound which is prepared by taking ethylenediamine, butyric acid, glyoxal and formaldehyde as raw materials based on amine-aldehyde polycondensation and has good biocompatibility; the preparation method comprises the following steps: by taking polybutylene adipate, toluene diisocynate and isophorone diisocyanate as main monomers, polypropylene oxide triol as a crosslinking monomer, 2, 2-dimethylolpropionic acid and 4, 4 '-diaminodiphenyl disulfide as chain extenders and composite carbon dots as an end-capping reagent, adding water and emulsifying to obtain the waterborne polyurethane hot melt adhesive.

The invention discloses a high-weather-resistance composite modified road hot-melt coating and a low-temperature preparation process thereof, and relates to the technical field of road engineering materials. Comprising 35-50 parts of a composite resin matrix, 15-20 parts of a gradient interface reinforcing agent, 18-25 parts of a nano composite filler, 8-12 parts of a low-temperature toughening network agent and 5-8 parts of a dynamic self-repairing agent. The material still keeps high elongation at break at-30 DEG C through the composite resin matrix, interface modified filler is prepared through the gradient interface reinforcing agent and the nano composite filler, interface bonding strength is enhanced, filler agglomeration is prevented, coating master batch is combined with the dynamic self-repairing agent, and the dynamic self-repairing coating has the advantages that the dynamic self-repairing coating has excellent mechanical properties, and the service life of the dynamic self-repairing coating is prolonged. The dynamic self-repairing capability is realized, and the service life is prolonged.

The invention discloses a self-adaptive regulation and control method and system for automatic production of a hot melt coating, and relates to the technical field of hot melt coating production. The method includes: acquiring production information of hot-melt coating produced by a production line to obtain standard information; and extracting the corresponding hot-melt coating performance and hot-melt coating ratio in the standard information to obtain reference information. The hot-melt coating matching information is selected and adjusted in the reference library through the set demand selection method according to the demands of the user to obtain the target matching, market demand changes and customer customized demands can be dealt with conveniently, the production flexibility of the hot-melt coating is improved conveniently, and in the production process of the hot-melt coating, the production efficiency of the hot-melt coating is improved. The real-time information of the production state is monitored, whether errors exist in the real-time information is judged to obtain a judgment result, whether feedback information is generated or not is determined according to the judgment result, the feedback information is matched with the target regulation and control information to adjust the production line in real time, the effect of eliminating the errors is achieved, and the product quality is ensured.

The invention relates to a preparation method of a fiber cloth reinforced polyphenylene sulfide alloy prepreg sheet material, a composite board as well as a preparation method and application of the composite board. The preparation method of the prepreg sheet material comprises the following steps: crushing polyphenylene sulfide, and screening to obtain PPS powder; mixing the PPS powder with a second component colloid and an auxiliary agent to obtain a blended rubber material; enabling the reinforced fiber cloth to pass through a hot coating machine head of multi-layer hot melting coating equipment through a traction system, conveying the blended rubber material to the hot coating machine head, and coating two surfaces of the reinforced fiber cloth with the blended rubber material; and then compacting is carried out, and the prepreg sheet material is formed. And carrying out hot lamination on the laminated prepreg sheets to form the fiber cloth reinforced polyphenylene sulfide alloy composite board. Through the synergistic effect of the hot coating process and the high-temperature-resistant adhesive resin, the key technical problems of non-uniform fiber impregnation caused by high viscosity of a PPS melt, pore defects caused by solvent residues, low interface bonding strength, difficulty in balancing toughening and heat resistance and the like are solved, and the high-performance composite board which is high in compactness and mechanical property and can be recycled and reprocessed is obtained.

The invention discloses a high-bonding-strength waterproof adhesive tape for a rough surface and a preparation method of the high-bonding-strength waterproof adhesive tape, and belongs to the technical field of functional adhesive tape, the adhesive tape sequentially comprises a release layer, a high-bonding-strength adhesive layer and a reinforced base material layer from bottom to top, the adhesive layer takes a mixture of butyl rubber and polyisobutene as a main polymer, and the reinforced base material layer takes a mixture of butyl rubber and polyisobutene as an auxiliary polymer; and the raw materials such as ternary compound tackifying resin of C5 petroleum resin, C9 petroleum resin and hydrogenated rosin glyceride, and nano reinforcing filler treated by a silane coupling agent are matched. The preparation method adopts a hot melting coating process, and comprises the following steps: banburying, coating and compounding, rolling and curing. The adhesive tape has high thixotropy and good wettability, can adapt to rough surfaces of concrete, painted metal and the like, is excellent in initial adhesion and bonding strength, high in water resistance and weather resistance, convenient to construct and suitable for gap sealing and water resistance in the fields of buildings, pipelines and the like, and the preparation process is environment-friendly and efficient.

The utility model discloses a feeding mechanism for a road marking hot-melting ruling machine, relates to the technical field of road marking equipment, and is used for solving the problem of non-uniform feeding of a feeding mechanism in the prior art. The feeding mechanism comprises a feeding pipeline, a feeding port and a feeding port are formed in the two ends of the feeding pipeline respectively, the feeding port is used for conveying the hot-melt coating to the road marking hot-melt marking machine body, the feeding port is used for filling the hot-melt coating, the inner wall of the feeding pipeline is of a cylindrical structure, and the two ends of the feeding pipeline are a driving end and a discharging end respectively. The feeding opening is formed in the discharging end; the conveying driving structure is connected with the driving end of the feeding pipeline, and the conveying driving structure is used for providing power to convey the hot-melt coating at the feeding port to the feeding port; and the heat preservation structure is arranged on the outer side of the feeding pipeline and used for heating the feeding pipeline through heat conduction oil so as to keep the molten state of the hot melting coating, and the heat conduction oil communicates with an external heating pumping structure.

The present invention discloses a split three-section hot melt kettle, which relates to the field of road marking equipment, including a kettle body assembly, a heating system, and a hot melt material conveying system connected by pipelines; the kettle body assembly includes a base, on which a kettle cover, an upper kettle section, a middle kettle section, and a lower kettle section are sequentially arranged from top to bottom, and the kettle cover is provided with a loading port and a feeding port, and the kettle body outer barrel and the kettle body inner barrel form a heating chamber; a discharge port connected to the kettle body inner barrel of the lower kettle is provided at the bottom of the lower kettle, and the feeding port and the discharge port are connected to the hot melt material conveying system; an oil inlet connected to the heating chamber is provided on the upper kettle body, and a stirring mechanism is coaxially arranged in the kettle body assembly, and the oil inlet and the oil outlet are connected to the heating system. The present invention can greatly improve the melting efficiency for different types of hot melt coatings, and at the same time has the advantages of automatic control of the melt temperature, sufficient fuel combustion, high combustion efficiency and compact structure.

The present application relates to hot melt coating technical field, propose a kind of wear-resistant hot melt traffic marking paint and preparation method thereof, wear-resistant hot melt traffic marking paint, including the following weight parts component raw materials: 55~65 parts C5 petroleum resin, 5~10 parts terpene resin, 180~260 parts wear-resistant component, 70~80 parts hollow glass microsphere, 10~16 parts auxiliary agent, 8~12 parts titanium white;Wear-resistant component includes heavy calcium carbonate powder, quartz sand, polyurethane emulsion;The viscosity of polyurethane emulsion is 100~4500cps.By the above technical scheme, the problem of poor wear resistance of hot melt traffic marking paint in related art is solved.

The application provides a preparation method of astaxanthin cordyceps militaris fine tablets, comprising the following steps: subjecting cordyceps militaris fruiting bodies to supercritical CO2 extraction treatment to separate a cordyceps militaris terpene component; mixing Haematococcus pluvialis powder and edible vegetable oil, adding the cordyceps militaris terpene component and rosemary extract, and cooling and forming to obtain an astaxanthin-cordyceps militaris terpene blend; crushing the residue after extraction, adding purified water and a composite enzyme preparation to perform enzymolysis to obtain an enzymolysis liquid; adding a chitosan quaternary ammonium salt solution, centrifuging after flocculation, vacuum drying, and crushing to obtain cordyceps militaris active powder; mixing and granulating raw materials to obtain granulation particles; uniformly mixing the granulation particles with xylitol and microcrystalline cellulose, and pressing into tablets; and placing the tablets in a coating machine for coating. The application realizes efficient retention of active ingredients, improvement of safety and stability of product quality through the cooperation of multiple technologies such as supercritical CO2 extraction, enzymolysis flocculation, low-temperature fluidized bed granulation and hot melt coating.

This invention provides a fully automatic hot-melt marking method and device based on intelligent control of hot-melt coatings, belonging to the field of construction control calculation. It includes: acquiring target marking data, hot-melt coating performance data, real-time location of the marking equipment, actual marking path, working parameter data for each completed planned marking, and quality inspection data; determining the parameter feature vector, acceptance anomaly vector, and marking control data for each smallest detection unit of each completed planned marking; calculating the direct and lagging attribution sets for each completed planned marking; constructing a marking control model; collecting real-time marking data and real-time working path for the current marking, and determining the real-time control data for the current marking. This allows for refined spatiotemporal correspondence between the construction process and quality results, accurately decomposing the direct and lagging influencing factors of marking quality anomalies, achieving real-time intelligent optimization control of marking construction, and improving the consistency and stability of marking quality.

The utility model discloses a kind of road hot melt marking machine, belong to hot melt marking machine field. Including hopper, cutter, scraping blade and heating piece etc. Electric heating element is arranged between cutter and hopper and / or scraping blade and hopper, heating hopper, cutter, scraping blade etc. are carried out in the discharge port position of hopper using electric heating mode, while providing certain heat to hot melt coating in hopper, ensure that hot melt coating has good fluidity in the process of applying, to ensure the neatness and adhesion of marking edge. Compared with traditional flame heating mode, electric heating mode does not need to wait for primer to dry completely, construction efficiency is higher, and there is no fire, gas leakage and other security risks. At the same time, electric heating mode is more efficient, temperature control is more stable, which helps to improve marking quality.

The utility model provides an auxiliary device of a road line drawing machine, which comprises a melting kettle, one side of the melting kettle is provided with a first circular ring pipe and two support rings, the first circular ring pipe is provided with a plurality of air outlet pipes, one side of the first circular ring pipe is provided with a second circular ring pipe, and one side of the second circular ring pipe is provided with an exhaust pipe. A plurality of spray heads are arranged on one side of the exhaust pipe and are perpendicular to the ground, a supporting rod is arranged on the supporting ring, and a sleeve rod is arranged on the supporting rod. The air outlet pipe, the exhaust pipe and the spray head are arranged, water vapor generated by heating and melting the hot melt coating in the melting kettle is exhausted to the exhaust pipe through the air outlet pipe and finally sprayed to the ground through the spray head, in the process, the water vapor can be prevented from being sprayed to the face of a constructor, and the comfort of the constructor during construction is improved; and meanwhile, the water vapor sprayed by the spray head is sprayed to the marked line on the ground, so that water in the marked line is quickly evaporated into water vapor at high temperature, and the speed of drying the marked line is effectively increased.

The invention relates to the technical field of power cable protection, in particular to a power cable hot melting coating device which comprises two driving assemblies installed on a cable body, each driving assembly comprises a shell and a U-shaped plate, and the shells and the U-shaped plates are each provided with a driving wheel used for being attached to and driving the cable body; clamping mechanisms used for clamping the cable body are arranged on the two sides of the shell and matched with the U-shaped plates; the connecting assembly is connected with the two driving assemblies, device configuration can be adjusted according to the number of the cables, the connecting assembly comprises a fixing plate and fixing blocks arranged at the front end and the rear end of the fixing plate, and the fixing blocks are detachably connected with the driving assemblies; the coating assembly is installed on the connecting assembly and comprises an upper arc-shaped plate and a lower arc-shaped plate which can be opened and closed, a material storage assembly, and a semi-circular-ring-shaped material guide ring, a coating ring and a drying assembly which are arranged on the oppositely-combined face of the upper arc-shaped plate and the lower arc-shaped plate; the device has the advantages that the device can adapt to cable specifications, the coating quality is stable, and on-site flexible deployment is facilitated.

The utility model belongs to the technical field of chip packaging, and provides a carrier tape hot melting film covering device which is characterized in that a motor is utilized to drive an eccentric wheel to rotate, the eccentric wheel drives a push plate to move downwards, and the push plate drives an upper heating plate to move downwards through a driving block, a driven block, a sliding rod, a baffle ring, a sliding rail and the upper heating plate. When the upper roller on the upper heating plate moves downwards to the carrier tape, the upper roller and the lower roller press the carrier tape and perform hot melting and film covering, so that the sealing film and the carrier tape are hot-melted together, meanwhile, the carrier tape continuously moves forwards, continuous hot melting and film covering of the carrier tape are achieved, manual operation is not needed in the whole process, the production efficiency of hot melting and film covering of the carrier tape is remarkably improved, and the production cost is reduced. The method is suitable for large-scale production.

The utility model discloses a hot melt coating marking-off machine head with double helical flow guide structure relates to marking-off machine head structure field, including fixed block, the adapter block is located fixed block one side, the feeding column is located adapter block top, the discharge column is located fixed block other side bottom, the discharge runner is located between fixed block, adapter block, feeding column and discharge column, and control assembly is located in fixed block, can control the discharge of machine head, and the top detachable connection of column is on marking-off machine, and the bottom of column is equipped with adapter block, and the feeding chamber is located in the column, and first helical flow guide piece is located on the inner wall of feeding chamber, can effectively solve the problem of the discharge uniformity and coating thickness unevenness of hot melt coating in the marking-off process, thereby ensure the quality of road marking.

The invention discloses polyester fabric waterproof coating compounding equipment, and relates to the technical field of polyester fabrics, the polyester fabric waterproof coating compounding equipment comprises a hot melt coating compounding machine main body, the hot melt coating compounding machine main body is used for compounding a waterproof coating or a waterproof moisture permeable film of a polyester fabric, two sides of the hot melt coating compounding machine main body are provided with edge side plates, and the edge side plates are connected with the hot melt coating compounding machine main body. A first fixing roller and a second fixing roller are erected between the two side plates, and a cloth tensioning assembly is arranged between the two side plates and located above the first fixing roller and the second fixing roller. The polyester base cloth and the waterproof and moisture-permeable film are prevented from entering the space between the two fixing rollers after being folded, the guide plate is used for guiding the cloth to the space between the two fixing rollers, the polyester base cloth and the waterproof and moisture-permeable film can be tightly attached together, and the pressing roller is used for pressing the polyester base cloth and the waterproof and moisture-permeable film, so that the waterproof and moisture-permeable effect is improved. The adhesive between the polyester base cloth and the waterproof and moisture-permeable film can be uniformly smeared and compacted, and the quality and texture of the cloth compounded by the polyester base cloth and the waterproof and moisture-permeable film can be ensured.

The invention relates to the technical field of hot-melt coatings, in particular to a low-environmental-pollution environment-friendly hot-melt coating filler as well as a preparation method and application thereof. The hot-melt coating filler comprises the following components in parts by weight: 5-15 parts of a modified inorganic fiber material, 30-50 parts of first particles, 1-4 parts of Sn-Bi binary alloy powder, 10-25 parts of calcium silicate, 5-20 parts of calcium carbonate and 10-25 parts of metakaolin, the first particles are obtained by compounding ceramic microspheres and ternary system low-melting-point glass powder.

The present invention discloses an integral three-section hot melt kettle, comprising a kettle body assembly, a heating system, and a hot melt material conveying system connected by pipelines; the kettle body assembly comprises an outer kettle body; a kettle cover is provided on the top of the outer kettle body, and a loading port and a feeding port are provided on the kettle cover; the outer kettle body comprises an outer kettle outer barrel and an outer kettle inner barrel which are fitted into each other, an oil inlet and an oil outlet are provided on the outer kettle body, and a material outlet is provided at the bottom of the outer kettle body; a middle kettle body is provided in the outer kettle body, and the middle kettle body divides the entire outer kettle body into three sections: upper, middle, and lower; the middle kettle body comprises a middle kettle outer barrel and a middle kettle inner barrel, and an oil inlet and an oil outlet are provided on the middle kettle body; a stirring mechanism is coaxially provided in the outer kettle body, and the oil inlet and the oil outlet are connected to the heating system. The present invention can greatly improve the melting efficiency for different types of hot melt coatings, and at the same time has the advantages of automatic control of the melt temperature, sufficient fuel combustion, high combustion efficiency, and compact structure.

This invention belongs to the technical field of hot-melt road marking paint, specifically relating to a continuous reflective hot-melt paint and its preparation method. The continuous reflective hot-melt paint, by weight, comprises the following raw material components: 140-150 parts petroleum resin, 50-60 parts titanium dioxide, 300-350 parts modified glass beads, 10-12 parts composite coupling agent, 8-10 parts DOP, 10-15 parts polyethylene wax, 12-16 parts SEBS, 250-300 parts rod-shaped calcium carbonate, 100-150 parts silica powder, 8-10 parts antioxidant 1010, and 5-8 parts nano zinc oxide; the composite coupling agent includes a silane coupling agent, a phosphate coupling agent, and an aluminate coupling agent in a mass ratio of 1:1-2:1-3. This invention optimizes the formulation and preparation method of the coating raw materials, resulting in a hot-melt coating that, when used for road markings, not only has good adhesion and long-lasting reflectivity, but also good weather resistance, does not discolor or crack, and can meet the needs of modern road markings.

The invention relates to the technical field of hot-melt coating production, and discloses a mixing device and method for hot-melt coating production, and the device comprises: a tank mechanism for accommodating raw materials and mixed materials and providing a stirring space; the support mechanism is arranged on the outer side of the tank body mechanism and used for supporting a tank body and accessories. The batching mechanism is arranged at the top of the bracket mechanism and is used for accurately blending the proportion of raw materials and putting the raw materials; the stirring mechanism is arranged on the inner side of the tank body mechanism and is used for fully stirring to uniformly mix the raw materials; the cooling mechanism is arranged on the lower side of the tank body mechanism and used for cooling materials to be filled. And the stirring mechanism comprises a motor III. Accurate feeding and stirring are achieved through the batching mechanism, and the quality and efficiency are guaranteed; the heating and cooling mechanism is excellent in temperature control, barrel deformation and coating deterioration are prevented, and temperature adjustment is flexible; the multifunctional integrated design and the mechanism collaborative optimization process are adopted, the occupied area is small, the cost is low, maintenance is convenient, and the production efficiency is improved.

A roofing material including a bitumen or other hot melt coating disposed across a base sheet of stitch-bonded fabric incorporating a blend of standard and bi-component polyester staple fibers stitch-bonded with a plurality of parallel stitch lines of stitching yarn running in the machine direction. The bicomponent fibers may be heat activated and cooled prior to application of the hot melt coating thereby providing dimensional stability.

The invention discloses a mixing device for hot-melt coating production, relates to the technical field of hot-melt coating production equipment, and solves the technical problems that an existing device has defects in the aspects of crushing efficiency, screening precision, mixing uniformity and the like, and full-process efficient continuous production is difficult to achieve. Supporting legs are fixedly connected to the four corners of the bottom of the working platform, a reinforcing frame is fixedly connected to the middle sections of the outer walls of the multiple supporting legs, a ladder assembly is fixedly connected to the front end of the left side of the working platform, a raw material crushing mechanism is installed in the working platform, and a mixing mechanism is arranged at the bottom of the raw material crushing mechanism. High-efficiency crushing is achieved through the cooperation of double crushing rollers and gear meshing and the design of a stop block, material screening and unqualified material reprocessing are completed through a screening component, molten materials are evenly mixed through a helical ribbon type structure of a mixing roller and a heating wire, and a duckbilled spray head is matched with the mixing roller to rotate to achieve automatic cleaning. The whole-process efficient continuous production from crushing, screening, mixing to cleaning is realized.

The invention relates to a hot melt adhesive composition and a preparation method thereof, in particular to a multi-layer hot melt adhesive suitable for a low-surface-energy polyolefin base material, which has good wettability, bonding strength, damp heat resistance and ultraviolet light resistance stability, and is suitable for the industrial application fields of plastic films, sheets, composite materials and the like. The preparation raw materials comprise a styrene-isoprene-styrene block copolymer, hydrogenated hydrocarbon resin, liquid polyisobutene, a hindered phenol antioxidant and an ultraviolet absorbent. The hot melt adhesive disclosed by the invention is suitable for continuous hot melt coating production, uniform in coating and simple and convenient to operate, and can be widely applied to the industrial fields of plastic films, composite materials, automotive upholstery, electronic components and the like. Compared with the prior art, the bonding reliability of the low-surface-energy material is improved, meanwhile, the industrial preparation process is simplified, the production efficiency is improved, and the method has remarkable market application value.

The invention provides a preparation method of astaxanthin cordyceps militaris essence tablets, which comprises the following steps: performing supercritical CO2 extraction treatment on cordyceps militaris sporocarp, and separating to obtain a cordyceps militaris terpene component; mixing the haematococcus pluvialis powder with the edible vegetable oil, adding the cordyceps militaris terpene component and the rosemary extract, cooling and forming to obtain an astaxanthin-cordyceps militaris terpene blend; crushing the extracted raffinate, and adding purified water and a compound enzyme preparation for enzymolysis to obtain enzymatic hydrolysate; a chitosan quaternary ammonium salt solution is added, centrifugation is performed after flocculation, and crushing is performed after vacuum drying to obtain cordyceps militaris active powder; mixing and granulating the raw materials to obtain granulated particles; uniformly mixing the granulated particles with xylitol and microcrystalline cellulose, and pressing into tablets; and coating the tablets in a coating machine. Through cooperation of multiple technologies such as supercritical CO2 extraction, enzymolysis flocculation, low-temperature fluidized bed granulation and hot-melt coating, efficient retention of active ingredients, improvement of safety and stable product quality are realized.

The invention belongs to the technical field of hot-melt road marking coatings, and particularly relates to a continuous reflective hot-melt coating and a preparation method thereof. The continuous reflective hot melt coating is prepared from the following raw material components in parts by weight: 140 to 150 parts of petroleum resin, 50 to 60 parts of titanium dioxide, 300 to 350 parts of modified glass beads, 10 to 12 parts of a composite coupling agent, 8 to 10 parts of DOP (Dioctyl-Phthalate), 10 to 15 parts of polyethylene wax, 12 to 16 parts of SEBS (Styrene-Ethylene-Butylene-Styrene), 250 to 300 parts of rodlike calcium carbonate, 100 to 150 parts of silica powder, 8 to 10 parts of an antioxidant 1010 and 5 to 8 parts of nano zinc oxide. The composite coupling agent comprises a silane coupling agent, a phosphate coupling agent and an aluminate coupling agent in a mass ratio of 1: (1-2): (1-3). By optimizing the ratio of the raw materials of the coating and the preparation method, the obtained hot-melt coating is used for road marking, not only is good in adhesive force and lasting in light reflection, but also is good in weather resistance, does not change color and does not crack, and can meet the requirements of modern road marking.

The utility model discloses a quantitative discharging mechanism for hot melt coating, and belongs to the technical field of quantitative discharging mechanisms. The hot melt coating quantitative discharging mechanism comprises a base, a stirring mechanism and a quantitative mechanism, the stirring mechanism comprises a bottom box, the bottom end of the bottom box is fixedly connected with one side of the upper end of the base, a heat preservation barrel is installed at the upper end of the bottom box, a stirring barrel is sleeved with the heat preservation barrel, and the bottom end of the interior of the stirring barrel is rotationally connected with a stirring rod; a heating sleeve sleeves the outer wall of the stirring barrel in the heat preservation barrel; a temperature sensor is mounted at the upper end of the inner side wall of the stirring barrel; the quantifying mechanism comprises a quantifying box, the quantifying box is arranged on one side of the bottom box, the bottom end of the quantifying box is connected with the upper end of the base, a liquid level sensor is fixedly installed on one side of the quantifying box, a discharging pipe is arranged on the bottom side of the quantifying box, and one end of the discharging pipe is sleeved with an electromagnetic valve. The practicability of the quantitative discharging mechanism for the hot melt coating can be effectively improved, and the quantitative discharging mechanism has high practical value.

This invention relates to the field of anti-yellowing technology, specifically to an anti-yellowing lining with a hot-melt coating and its preparation method. A finishing solution is prepared using composite carbon dots, an anti-yellowing agent, and a composite chitosan solution to finish the lining. Furfural and urea are selected as carbon and nitrogen sources, respectively, and nitrogen-doped furfural-based carbon dots are synthesized in a one-step hydrothermal process. An amino-terminated polyimidazolium salt antibacterial compound is then grafted onto the carbon dots to obtain the composite carbon dots. The amino-terminated polyimidazolium salt antibacterial compound is prepared from ethylenediamine, butyric acid, glyoxal, and formaldehyde using amine-aldehyde condensation as raw materials, resulting in a biocompatible amino-terminated halogen-free polyimidazolium salt antibacterial compound. A water-based polyurethane hot-melt adhesive is obtained by emulsifying with water using polybutylene adipate, toluene diisocyanate, and isophorone diisocyanate as the main monomers, polypropylene ether triol as the crosslinking monomer, 2,2-dimethylolpropionic acid and 4,4'-diaminodiphenyl disulfide as chain extenders, and the composite carbon dots as the capping agent.

1. The name of the design product: support (hot melt coating broken bridge nylon column). 2. The use of the design product: installed on the roof of double-layer steel plate structure, used for fixing the roof steel plate and welding with the roof waterproof roll through the coating. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The utility model discloses a high-precision temperature control hot melting kettle temperature control system, which comprises a hot melting kettle used for melting hot melting paint; the heat-conducting oil heating system comprises a heating tank, a heat-conducting oil circulating pump and an intelligent diverter valve, the heating tank is filled with heat-conducting oil, heat is circularly transferred to the hot melting kettle through the heat-conducting oil circulating pump, and the intelligent diverter valve is used for controlling the flow direction of the heat-conducting oil; the temperature monitoring circuit comprises at least three distributed temperature sensors which are respectively arranged at the feed port, the discharge port and the kettle bottom of the hot melting kettle and are used for monitoring the temperature distribution in the hot melting kettle in real time; and the PID control circuit is used for receiving a signal of the temperature monitoring circuit and outputting a control signal to an intelligent diverter valve and a heat-conducting oil circulating pump of the heat-conducting oil heating system. Meanwhile, due to the cooperative work of the intelligent diverter valve and the heat-conducting oil circulating pump, uniform temperature distribution in the hot melting kettle is ensured, and the local overheating or supercooling condition is avoided, so that the reliability and stability of the system are improved.