55results about How to "Uniform density" patented technology

The invention provides a preparation method of an ADC foaming agent for improving foaming pore density, which comprises the following steps: step 1, mixing a modified inorganic nucleating agent with water according to a predetermined mass ratio, adding a dispersing agent, and uniformly mixing to prepare uniform and stable suspension slurry to prevent agglomeration of the nucleating agent; 2, when the conversion rate of the biurea reaches 80%-85%, adding the suspension slurry, so that the inorganic nucleating agent is uniformly attached to the surface of the ADC crystal; and 3, continuing the oxidation reaction until the biurea conversion rate reaches 92% or above, and then washing, centrifuging and drying to obtain the ADC foaming agent. The ADC foaming agent for improving the foaming pore density is prepared by the method. The inorganic nucleating agent is added in the stage of preparing the ADC foaming agent, and compared with the inorganic nucleating agent added in the subsequent foam material preparation process, the density of foaming pores can be remarkably improved.

The utility model relates to the technical field of liquid packaging machine equipment, and discloses a feeding device of a back sealing liquid packaging machine, which comprises a liquid storage tank, the upper side of the liquid storage tank is rotatably connected with a second bevel gear, and the lower side of the second bevel gear downwards penetrates through an upper tank cover of the liquid storage tank and is fixedly connected with a plurality of connecting rods; a plurality of connecting rods are arranged in the liquid storage tank, the lower ends of the plurality of connecting rods are jointly and fixedly connected with a central cylinder, a shaftless auger blade is rotatably connected in the central cylinder, and the upper end of the shaftless auger blade is fixedly connected with a transmission rod. The shaftless auger blade can convey macromolecular substances settled below the liquid storage tank to the upper-layer space of the liquid storage tank along the central cylinder, and the macromolecular substances are mixed with an upper-layer low-density solution, so that the density difference value of the upper-layer solution and the lower-layer solution is reduced, and the densities of the upper-layer solution and the lower-layer solution in the whole liquid storage tank tend to be uniform relatively.

This invention relates to the field of coffee machine technology and proposes a coffee machine powder receiving cylinder movement structure, including a housing. A grinding assembly is disposed within the housing, a tamping cylinder assembly is disposed on one side of the grinding assembly, and a receiving cylinder assembly is disposed below the tamping cylinder assembly. A connecting rod fixed shaft movement track is provided between the tamping cylinder assembly and the receiving cylinder assembly. A fixing component is snapped onto one side of the receiving cylinder assembly, and a lead screw assembly is connected to the fixing component. The grinding assembly guides coffee powder into the receiving cylinder assembly. The lead screw assembly drives the fixing component to move, simultaneously driving the receiving cylinder assembly connected to the fixing component to move upward along the connecting rod fixed shaft movement track. The receiving cylinder assembly moves to below the tamping cylinder assembly and engages with it. During this process, the tamping cylinder assembly and the receiving cylinder assembly are concentric and coaxial in the vertical direction. The tamping cylinder assembly applies downward force, cooperating with the receiving cylinder assembly to compress the coffee powder into a uniformly dense coffee cake.

This utility model belongs to the field of evaporator technology and discloses a high heat exchange efficiency microchannel heat exchange structure ice mold evaporator, including an evaporator body. Multiple microchannel heat exchange tubes are fixedly installed on the inner side of the evaporator body, and multiple microchannel holes are opened at the bottom of the evaporator body. Diversion pipes are fixedly installed on the left and right sides of the evaporator body. The comprehensive application of the microchannel heat exchange structure, inner surface strengthening treatment, and outer surface fin design significantly improves the heat exchange efficiency of the evaporator. Compared with traditional evaporators, the ice-making speed can be increased, producing the same amount of ice in a shorter time, meeting the demand for rapid ice making. High heat exchange efficiency means that, under the same ice-making capacity, the required refrigeration compressor running time is shortened, and energy consumption is reduced. Actual testing shows that using the evaporator of this utility model reduces the energy consumption of the ice-making system, effectively reducing operating costs.

A navigation light adjustment method and system are disclosed, relating to the field of navigation light technology. The method involves acquiring vessel information and visibility for all vessels within a predetermined water area; determining the vessel density within the predetermined water area based on the vessel information; dividing the predetermined water area into multiple adjustment zones based on the vessel density; calculating the comprehensive navigation condition value for each vessel within each adjustment zone based on the visibility and vessel density; obtaining the navigation routes for each vessel within each adjustment zone; and adjusting the parameters of the navigation lights for each vessel within each adjustment zone based on the navigation routes and the comprehensive navigation condition value. Implementing the technical solution of this application allows for analysis of the surrounding navigation environment and timely adjustment of navigation lights, thereby reducing the probability of vessel collisions.

This invention relates to the field of building exterior wall construction technology, specifically a construction method for concrete in building exterior wall structures. The device includes a wall body with internal steel reinforcement. Several binding steel bars are arranged in a linear array on the wall reinforcement, and all binding steel bars are inserted into the wall body. A formwork mechanism that restricts the concrete shape and is easily disassembled is located in front of the wall body. The filled concrete is compacted by uniformly moving laterally during vibration, thus avoiding the situation where some concrete is not compacted during manual operation. This ensures uniform compaction of the concrete, further increasing its overall structural strength after setting. While more accurately controlling the concrete compaction, the vibration also removes a large number of air bubbles within the concrete, preventing the formation of numerous voids that could damage the overall structural strength of the exterior wall after setting, and also preventing rainwater infiltration and dampness.

The utility model belongs to the technical field of building new material plate production, and particularly relates to a building new material plate compacting device which comprises an operation table, a supporting table is fixedly connected to the outer wall of the operation table, a compacting mechanism is arranged on the supporting table, a demolding mechanism is arranged below the compacting mechanism, and the demolding mechanism comprises a frame body. And a long plate and a short plate are arranged in the frame body. According to the new building material plate compacting device, after a plate is formed, a hydraulic cylinder b is controlled to drive a long plate and a short plate to return to original positions, so that the plate is preliminarily separated from the inner walls of the long plate and the short plate, then a hydraulic cylinder c is controlled, and at the moment, a material ejecting plate fixed to the output end of the hydraulic cylinder c can eject the formed plate out of a frame body; by means of the design, the demolding process is smoother, the plate is directly ejected out of the frame body through the ejector plate, an operator can conveniently, rapidly and conveniently take materials, the production efficiency is greatly improved, and the labor intensity is reduced.

The invention discloses premixed polyether polyol for continuous production of LNG (liquefied natural gas), polyurethane foam and a preparation method of the premixed polyether polyol. The premixed polyether polyol comprises the following raw materials in parts by weight: 80-105 parts of composite polyol; 3-5 parts of a nano reinforcing agent; 2-4 parts of a composite catalyst; 2-4 parts of a foam stabilizer; 20-30 parts of a physical foaming agent; 1.0-2.0 parts of a chemical foaming agent; and 20-30 parts of a flame retardant. The polyurethane foam comprises the combined polyether and polymerized diphenylmethane diisocyanate, and is prepared by mixing the combined polyether and the polymerized diphenylmethane diisocyanate according to a certain proportion. According to the low-temperature-resistant, low-thermal-conductivity and high-strength polyurethane foam for the LNG, the combined polyether reacts with the isocyanate, and through the synergistic effect of the high-functionality polyether polyol, the polyester polyol and the nano reinforcing agent, the low-temperature-resistant, low-thermal-conductivity and high-strength polyurethane foam for the LNG can be continuously produced; the density is uniform; the heat conductivity coefficient is low; and the strength is high.

This invention discloses a waste recycling device for FIBC (Flexible Intermediate Bulk Container) processing, relating to the field of comprehensive environmental utilization of solid waste. The device includes a hollow frame, a hydraulic rod mounted on the hollow frame, and a pressure plate mounted on the hydraulic rod. The equipment continuously feeds FIBC waste into a flattening machine. The pressure plate is automatically triggered by the weight of the waste, achieving a complete automatic cycle of feeding, weighting, triggering, compaction, resetting, and locking, thus improving waste recycling efficiency. When not in operation, the pressure plate is rigidly limited by a limiting mechanism, preventing hydraulic system depressurization or accidental drop. This ensures uniform compaction density of the plastic waste, reducing the mixing and adhesion of plastic and impurities due to insufficient compaction, facilitating subsequent separation of plastic from other components. It also protects core components such as the hydraulic rod and pressure plate, extending equipment lifespan, reducing maintenance costs, and contributing to the resource-based recycling of plastic waste and comprehensive utilization of solid waste.

This application provides a gradient-doped ferroelectric thin film device and its fabrication method, relating to the field of optoelectronic device technology. The gradient-doped ferroelectric thin film device comprises, from bottom to top, a substrate, a buried oxide layer, a buffer layer, and a ferroelectric thin film material layer; the ferroelectric thin film material layer is doped with impurity ions, with the doping concentration of the impurity ions increasing sequentially from bottom to top. This application, by employing a bottom-up incremental gradient doping design, optimizes the interface defects and internal stress of the ferroelectric thin film, overcomes the problem of lattice mismatch between ordinary ferroelectric thin films and the substrate layer, achieves improved crystal quality and enhanced electro-optic coefficient, and effectively improves the electro-optic effect.

The utility model discloses waterfowl shell compression molding equipment, and particularly relates to the technical field of waterfowl shell molding equipment.The waterfowl shell compression molding equipment comprises a main frame, a compression assembly, a mold assembly and a controller, the main frame comprises a top frame, a bottom frame and two side plates, and two first positioning clamping plates are installed on the bottom face of the top frame in a sliding mode; two second positioning clamping plates are installed on the top face of the bottom frame in a sliding mode, the pressing assembly comprises two arc-shaped pressing plates, a plurality of air cylinders are evenly arranged on the two side plates correspondingly, and the telescopic ends of the air cylinders are fixedly connected with the two arc-shaped pressing plates correspondingly; a plurality of electric heating bars and a temperature detector are arranged in each arc-shaped pressing plate in a penetrating mode, the opposite surfaces of the two arc-shaped pressing plates are matched with the outer wall of the mold assembly, and an injection port and an exhaust port are formed in the top of the mold assembly. According to the utility model, the die is vertically placed, so that the good exhaust effect can be ensured, the product quality is improved, and the density of the pressed waterfowl shell is relatively uniform.

The present application relates to a kind of flame-retardant anti-shrinkage PBAT / bamboo powder supercritical foaming material and its preparation method, belong to degradable foaming material technical field.To solve the problem that PBAT system introduces bamboo powder and flame retardant causes foaming material cell structure uneven, density uneven, mechanical property drops, the present application provides a kind of flame-retardant anti-shrinkage PBAT / bamboo powder supercritical foaming material, component includes PBAT, bamboo powder and flame retardant, melt extrusion granulation after being placed in airtight container, fills in supercritical gas and is foamed to be prepared.The present application improves the anti-shrinkage and flame-retardant performance of PBAT foaming material by the addition of bamboo powder and flame retardant;By optimizing the injection amount of supercritical gas, foaming temperature and pressure, reduce foaming instability, effectively offset the adverse effects of bamboo powder and flame retardant on cell growth, obtain uniform cell structure and density, further improve the mechanical property of material.

This invention discloses a control method and system for a high-temperature coating furnace for pyrolytic graphite, belonging to the field of material preparation and high-temperature heat treatment technology. It solves the problems of poor deposition uniformity, contradiction between deposition efficiency and quality, and poor process repeatability that exist in coating furnace control methods when preparing workpieces. The technical solution includes the following steps: The substrate to be deposited is placed in the furnace chamber of the high-temperature coating furnace for pyrolytic graphite and pretreated; the pretreated substrate is subjected to multi-stage variable temperature and flow rate deposition control to complete the deposition operation. The multi-stage variable temperature and flow rate deposition control includes four sub-stages performed sequentially: preheating and degassing, interface nucleation, stable growth, and final densification; after the deposition operation is completed, the substrate is cooled, and the substrate coated with pyrolytic graphite is removed. This invention is applied to coating furnaces.

The invention provides a pressurizing device and method for a cylindrical solid-state battery and the cylindrical solid-state battery, and belongs to the technical field of new energy battery manufacturing, and the pressurizing device comprises a rack, a central pipe, an internal pressurizing assembly and an external pressurizing assembly; the rack is used for bearing a cylindrical battery, and the central pipe serves as a supporting reel in the cylindrical battery roll core winding process and can generate radial preset deformation; the internal pressurizing assembly is connected to the rack, telescopically extends into the central pipe and is used for applying radial pressure to the pipe wall of the central pipe and driving the central pipe to generate first radial pressure on a roll core of the cylindrical battery; the external pressurizing assembly is connected with the rack and is used for applying radial pressure to the shell of the cylindrical battery and driving the shell to apply second radial pressure to the roll core; therefore, the roll core of the cylindrical battery is subjected to internal and external double extrusion, so that the roll core can form uniform and stable high pressure among the diaphragms, thereby improving the rate capability and the cycle stability of the cylindrical battery and prolonging the service life of the cylindrical battery.

This invention discloses a hot isostatic pressing densification method for impregnated coating of ball valve cores, belonging to the field of metal surface coating technology. The method specifically includes the following steps: (1) substrate pretreatment and coating preparation; (2) activation of the coating's thermoplastic state; (3) encapsulation-type near-isostatic pressing densification treatment; and (4) unloading, cooling, and finishing. The core of this invention lies in the synergistic effect of "thermoplastic softening" and "uniform pressure application with full spherical encapsulation." By applying a uniform pressure of approximately isostatic pressure to the coating in its thermoplastic state, the internal pores are efficiently closed, improving the coating's density and overall mechanical properties without damaging the coating's integrity or the workpiece's geometric accuracy.

This utility model discloses a magnetic material processing and forming device, relating to the field of soft magnetic material processing technology. It includes a base, a stationary groove mold, a moving groove mold, a first driving device, and a second driving device. The stationary groove mold is fixed to the base, and a push plate is provided at the groove notch. The moving groove mold is slidably mounted on a linear slide rail on the base. The first driving device drives the moving groove mold to close with the stationary groove mold, at which point the groove bottom plate, the two groove notches, and the push plate together form a pressing groove. The second driving device drives the punch to press the protrusion into the pressing groove to complete the forming. During demolding, the moving groove mold separates and drives the push plate to automatically eject the blank. This device achieves rapid mold closing and demolding through the sliding cooperation of the moving and stationary groove molds, resulting in a simple structure and efficient operation. The device automatically ejects the blank through the sliding separation of the moving and stationary groove molds and the linkage of the push plate, eliminating the need for a separate ejection mechanism, reducing the failure rate, reducing the number of parts, and ensuring uniform pressing density of the blank.

This invention is primarily applicable to the field of embroidery machine technology. It discloses a method, device, equipment, and medium for feedforward control of yarn tension in an embroidery machine. The method involves acquiring data of the pattern to be embroidered within a look-ahead buffer; detecting the needle pattern switching point between the current and next needle steps; determining the theoretical thread consumption rate mutation value based on the needle step length and spindle speed; generating a compensation pulse command accordingly, the execution time parameter of which is synchronized with the spindle phase at the start of the next needle step; and controlling an electromagnetic direct-drive high-speed response actuator to perform active compensation within a preset window when the spindle reaches this phase, thus mitigating the transient impact of the thread consumption rate mutation on the yarn tension. This application achieves feedforward-feedback composite high-dynamic control of yarn tension during needle pattern switching transients, eliminating thread breakage and slippage, and ensuring stitch consistency in the transition area.

The utility model discloses an extrusion device convenient for uniform stress, which belongs to the technical field of plate extrusion, and comprises a placing plate, four corners of the placing plate are respectively and fixedly connected with a first electric push rod, the top of each first electric push rod is fixedly connected with a connecting block, and a linkage plate is fixedly connected among the four connecting blocks. According to the extrusion device facilitating uniform stress, a first electric push rod can be started to drive a connecting block and a linkage plate to press downwards, at the moment, the linkage plate can push a telescopic rod, a buffer spring and an extrusion plate at the bottom to extrude an integrated wallboard, and at the moment, the extrusion plate can extrude the telescopic rod and the buffer spring; the force applied by the extrusion plate to the integrated wallboard is uniformly distributed under the elastic action of the buffer spring, and the situation that local stress of the wallboard is too large or too small in the extrusion process is avoided, so that it is guaranteed that the density and strength of the wallboard are uniform and consistent, and the product quality is improved.

The invention discloses a preparation device for a PU material foaming piece of vehicle-mounted refrigerator heat preservation cotton, and belongs to the technical field of vehicle-mounted refrigerator heat preservation cotton preparation. The preparation device comprises a supporting table, and a mixing mechanism and a mold closing mechanism are arranged on the upper surface of the supporting table; according to the device, the mixing mechanism is arranged, a fixing sleeve can be driven to synchronously rotate along with rotation of a spiral column, at the moment, the fixing sleeve drives a rotating rod to do circular motion, the rotating rod can drive a transmission gear to move in an inner gear ring, and the transmission gear drives the rotating rod to rotate under the action of the inner gear ring; at the moment, the rotating rod drives the stirring rod to perform circular motion and autorotation in the mixing barrel, so that polyether polyol and isocyanate in the mixing barrel are stirred and mixed, the defects of air holes and hollowing in a foaming piece are effectively avoided, the fluidity of raw materials is improved, impurities and water are removed, sufficient foaming reaction is ensured, and meanwhile, the density uniformity of the foaming piece is also ensured; and the heat preservation performance of the heat preservation cotton for the vehicle-mounted refrigerator is greatly improved.

The application belongs to the technical field of polyurethane elastomers, and particularly relates to a fluorine-containing polyurethane elastomer for harsh environments and a preparation method thereof. The elastomer is prepared by adding a chain extender to a fluorine-containing polyurethane prepolymer prepared from a fluorine-containing polyether polyol or a mixture of the fluorine-containing polyether polyol and a non-fluorine-containing polyether polyol and diisocyanate, and then vulcanizing after curing. The preparation method of the fluorine-containing polyether polyol comprises the following steps: polymerizing fluorine-containing phenolic compounds and INOVOL C304 as a composite initiator with propylene oxide under the action of a DMC catalyst to obtain the fluorine-containing polyether polyol; and the fluorine-containing phenolic compounds are one of 3,4,5-trifluorophenol, pentafluorophenol or heptafluoro-2-naphthol. The fluorine-containing polyurethane elastomer has excellent high-temperature resistance, hydrolysis resistance and chemical resistance; and the preparation method is simple and easy to implement, and is suitable for large-scale production.

The invention belongs to the technical field of preparation of inorganic non-metallic materials, and particularly relates to a preparation method of high-purity opaque quartz glass. The method comprises the following steps: by taking high-purity silica sol with impurity content of less than 1ppm as a raw material, compounding silica sol with various particle sizes in proportion, concentrating under reduced pressure until the content of silicon dioxide is 40-60%, adding an acrylamide gel enhancing system into the compounded sol, controlling the temperature to gelatinize the compounded sol, and preserving heat to improve the gel strength; and drying the wet gel at a low temperature of 60-80 DEG C and a relative humidity of 80-95% until the moisture content is less than 5%, then carrying out normal pressure dehydration, organic matter removal and presintering treatment on the dried gel blank, placing the presintered blank in a graphite container, and melting and preserving heat at 1400-1650 DEG C under the protection of nitrogen for 2-8 hours to obtain the non-quartz glass. And the pore size and density can be controlled by regulating and controlling the melting temperature and the heat preservation time. The total impurity content of the quartz glass prepared by the method is less than 5ppm, the structure is uniform, the density can be adjusted in a range of 1.8-2.1 g / cm < 3 >, and the quartz glass has good shading and heat-insulating properties.

The application discloses a kind of strengthened glass and its preparation method and use, by controlling the difference between the average density of the exposure area of strengthened glass and the average density of non-exposure area in a certain range, the density of exposure area and non-exposure area is balanced, and then the difference of light transmittance between exposure area and non-exposure area is enlarged, while the deformation amount of strengthened glass in the heat treatment process is reduced, the warpage of strengthened glass is reduced.

The utility model discloses a kind of attaching mechanisms of lithium anode plate, including anode fixed plate, conducting plate, lithium anode fixed plate, air inlet part, air outlet part and multiple wires;The conducting plate is fixedly configured between the anode fixed plate and lithium anode fixed plate, first chamber is formed between the conducting plate and the anode fixed plate, second chamber is formed between the conducting plate and the lithium anode fixed plate;The air inlet part and air outlet part are communicated with the second chamber, and multiple negative pressure suction holes are provided on the lithium anode fixed plate;Multiple wires are welded with the conducting plate at one end, and the welding point of the wire is located in the first chamber;Multiple electrically-conductive connecting structures are provided between the conducting plate and the lithium anode fixed plate;The attaching mechanism of lithium anode plate uses negative pressure suction force to make lithium anode and conducting copper plate fully attached, improve the electrically-conductive consistency between lithium anode plate and conducting copper plate.

This invention relates to the field of mortar testing, specifically to a mortar consistency testing device for environmentally friendly mortar. It includes a lead screw slide with its output end fixed to a worktable. A cover is located beside the worktable, and a cone-shaped device coaxially and detachably holds the mortar. A vibration mechanism is located at the lower end of the cover. An infrared sensor is fixedly connected to the lead screw slide near the cover, and the infrared sensor is electrically connected to a controller. An electromagnet is fixedly connected to the lead screw slide below the sensor. A support is fixedly connected to the lead screw slide below the electromagnet, and an electric actuator is fixedly connected to the upper end of the support. A retaining ring is fixedly connected to the end of the support away from the lead screw slide, and a guide rod is coaxially connected to the retaining ring. A permanent magnet is fixedly connected to the upper end of the guide rod near the lead screw slide, and a cone-shaped device coaxially with the cone-shaped device is fixed to the lower end of the guide rod. During testing, the cone is filled with mortar and fixed coaxially with the cover cylinder. The vibration mechanism disperses the mortar. The screw slide and electric actuator adjust the position of the cone, and the electromagnet attracts the guide rod. After the power is cut off, the cone falls, the infrared sensor detects the displacement and transmits it to the controller to calculate the consistency, thus achieving accurate testing.

The invention discloses an intelligent low-carbon cement component pouring forming system. The intelligent low-carbon cement component pouring forming system comprises a mold opening and closing mechanism, a mold, a pouring mechanism and a control unit. The mold is composed of two half molds, each half mold comprises a mold base and a module formed by splicing a plurality of replaceable modules, and an independently-controlled vibrator is integrated in each module. According to the system, the forming cavities in different shapes can be quickly reconstructed by replacing or recombining the modules, so that the flexibility and low-cost reuse of the mold are realized. And the control unit can perform independent and differentiated vibration control on the vibrator of each module according to the three-dimensional model of the component, so that the compactness and uniformity of the concrete are remarkably improved. A heating runner is integrated in the die holder, high-efficiency maintenance can be carried out by utilizing low-carbon heat sources such as waste heat, and an exhaust passage is arranged to balance internal pressure. The method has the characteristics of high production flexibility, excellent component quality, energy conservation and environmental protection, and is suitable for intelligent production of various prefabricated components.

This invention provides a gradient silicon nitride ceramic femoral head prosthesis and its preparation method, relating to the technical fields of clinical medicine and biomaterials. The femoral head prosthesis is prepared from 88-94 parts of silicon nitride powder, 4-12 parts of sintering aid, 5-20 parts of tungsten carbide titanium, and 0-30 parts of pore-forming agent, wherein the pore-forming agent cannot be 0 parts. The gradient silicon nitride ceramic femoral head prosthesis of this invention retains the advantages of silicon nitride ceramics—low wear, low friction, high strength, high fracture toughness, and good chemical stability—at the interface between the femoral head prosthesis and the liner, while reducing wear on the titanium alloy femoral stem cone caused by the large hardness difference between the femoral head prosthesis and the liner. This reduces the incidence of organ toxicity, periprosthetic osteolysis, and aseptic loosening caused by metal wear debris, improves the survival rate of the femoral head prosthesis and the femoral stem cone, reduces the revision rate of replacement surgery, and saves patients' treatment costs.

This invention relates to a uniformly dense curved polyurethane foam core material, its rotational foaming preparation method, and an antenna sandwich structure, belonging to the technical field of polymer material foaming molding and composite material structure manufacturing. In the key stage of the polyurethane mixture foaming reaction, this invention drives the mold to rotate continuously and uniformly around the central axis of the antenna surface, placing the liquid in a microgravity state where centrifugal force and gravity are balanced, eliminating density stratification and preparing a curved polyurethane foam core material with a density difference ≤5%. This core material is then composited with a fiber-reinforced resin composite skin to obtain the antenna curved sandwich structure. This invention achieves near-net-shape forming through the conformal design of the mold cavity and the antenna reflector surface, and strengthens the interface bonding by setting a film reinforcement layer between the skin and the core material. This invention effectively improves the surface accuracy stability and electrical performance consistency of the antenna reflector surface, and has the advantages of simple process, low cost, and wide applicability.

This invention discloses a sodium-ion battery rolling device, including a rolling assembly comprising a pressure roller and a side frame. The rolling assembly further includes a driven roller and a steel strip. The steel strip is sleeved on the outside of the pressure roller and the driven roller. The contact portion between the steel strip and the slurry coating forms a compression section. The contact surface between the compression section and the slurry coating is sloped, with the slope facing the pressure roller. The driven roller has reciprocating components on both end faces that drive the compression section to reciprocate along the contact surface with the slurry coating, with the reciprocating movement direction perpendicular to the slurry coating transport direction. This invention increases the compression path of the slurry coating and reduces the compression amount by using the compression section, ensuring the internal material uniformity of the slurry coating after rolling. Furthermore, the reciprocating compression section can smooth out minor protrusions on the surface of the slurry coating, ensuring the final uniformity of the slurry coating thickness and effectively guaranteeing the final product quality.

This invention relates to the field of coffee extraction technology and discloses an industrial espresso extraction machine, including a frame with a power supply box embedded in the inner side of the frame. A ground coffee pushing mechanism is provided behind the power supply box, a chute is provided on the outer side of the hopper, and a ground coffee dispensing mechanism is provided below the chute. This industrial espresso extraction machine, by employing a diversion mechanism, allows for a second extraction after a batch of coffee powder has been extracted once, and the extracted coffee liquid is diverted and transported separately from the first extraction, making full use of the coffee powder and saving costs. It can perform both hot and cold extractions. Cold and hot water can be switched at any time through the control of a T-junction and solenoid valve on the pipeline. An integrated grinder grinds a batch at a time, extracting immediately after grinding, minimizing the loss of coffee flavor. The addition of a ground coffee dispensing mechanism stirs and smooths the coffee powder, making it even and more uniform in density, resulting in better extraction.