27results about How to "Improve rolling effect" patented technology

The embodiment of the present invention discloses a flexible graphite grounding wire production line, including a feeding device, the output end of the feeding device is connected to an expansion device; the expansion device is connected to a desulfurization device; the input end of the desulfurization device is connected to the expansion device, and the output end of the desulfurization device has a first discharge port and a second discharge port; the first discharge port is connected to a front feeding device, the front feeding device is connected to a front calendering device, one side of the front calendering device is provided with a wiring device for fiber lines, and the wiring device is connected to a glue-hanging device; the second discharge port is connected to a rear feeding device, the front calendering device and the glue-hanging device are connected together to the input end of the rear feeding device, the rear feeding device is connected to a stripping device, and the output end of the stripping device is connected to a twisting and winding device. The equipment completes the expansion, calendering, compounding, slitting, twisting, and winding of raw materials at one time, and the equipment changes the current situation that flexible graphite grounding wires cannot be produced continuously and the width is too narrow, increases the utilization of energy, and reduces the use of labor.

The invention relates to an efficient light and superfine powder mixing and stirring device and method.The efficient light and superfine powder mixing and stirring device is characterized in that a guide cylinder, a first stirring device and a second stirring device are arranged in a lower tank body of a mixing tank, an outer shaft and an inner shaft located in the outer shaft are vertically and rotationally installed on the guide cylinder, and the outer shaft and the inner shaft penetrate through the bottom of the mixing tank; the first stirring device is fixedly connected with an inner shaft at the lower end of the guide cylinder, the second stirring device is fixedly connected with an outer shaft of the guide cylinder and installed at the lower end of the first stirring device, the first stirring device is driven by an outer shaft driving device to rotate and stir materials to move, and the second stirring device is driven by an inner shaft driving device to rotate and stir materials to move. The light superfine powder mixing device has the advantages that the mixing efficiency of light superfine powder materials is improved through the first stirring device, the second stirring device and the scraping device, the first stirring device can strongly suspend and stir the materials, the first stirring device, the second stirring device and the scraping plate are all driven by the variable frequency motor, the mixing time is shortened, and the mixing efficiency is improved.

The utility model relates to a rolling emulsion pre-preparation device, which relates to the technical field of emulsion production, and comprises a reaction kettle, a raw material box, a standing tank and a liquid storage cylinder, an induction heating device is arranged in the reaction kettle, mixed emulsion stirred and mixed in the reaction kettle stands in the standing tank, and standing layering is carried out to generate standing separation liquid and emulsion finished products; a visual window is arranged on the side face of the standing tank in the longitudinal direction, a metering mark is marked on the visual window, standing layering in the standing tank can be observed with naked eyes, then the output quantity of a standing separation liquid and an emulsion finished product is controlled, the standing separation liquid flows back into the reaction kettle to be stirred and fused again for preparation, and an oil phase and a water phase in the emulsion finished product are evenly mixed. The rolling mill can be used for transportation and rolling, the quality of finished emulsified liquid is improved, and the rolling effect of the emulsified liquid is improved.

This invention relates to the field of parts processing technology, and in particular to a burnishing cutter and its method of use. The burnishing cutter includes a shank, a burnishing element, a bearing, a mounting component, and a locking component. The shank has a mounting hole that matches the burnishing element, and the burnishing element is rotatably mounted in the mounting hole. The shank also has a receiving cavity and a through hole, which are sequentially connected. The bearing is rotatably mounted in the receiving cavity via the mounting component, and the outer ring of the mounted bearing contacts the burnishing element, forming a contact point one. The locking component is located in the through hole and can contact the outer ring of the bearing, forming a contact point two. By adjusting and fixing the position of the locking component, the compressive force it applies to the outer ring of the bearing at contact point two can be changed, thereby adjusting the flexibility of the bearing rotation and changing the relative motion between the burnishing element and the surface of the part. After burnishing high-toughness materials such as titanium alloys using this burnishing cutter, a surface roughness of Ra0.2 can be achieved.

The utility model belongs to the technical field of pipeline repair, and discloses a production device for a pipeline non-excavation repair lining hose, which comprises an integrated box, a stirring device used for mixing resin materials, a vacuumizing device used for vacuumizing a hose, a rolling device used for rolling the hose and a main controller used for controlling all the devices to work cooperatively are arranged in the integration box; the exterior of the stirring device is connected with a material injection pipeline, and a material injection pump is mounted on the material injection pipeline; the exterior of the vacuumizing device is connected with a vacuumizing pipeline, and a vacuum switch valve is mounted on the vacuumizing pipeline; the rolling device further comprises a conveying mechanism; the rolling device is mounted on a conveying path of the conveying mechanism; and the main controller is in signal connection with the stirring device, the vacuumizing device and the rolling device. The method is mainly used for solving the problems that in the existing lining hose preparation process, the labor intensity of workers is large, the overall planning performance of all equipment is insufficient, and the whole equipment is difficult to transfer.

The invention relates to a paper sheet synchronous conveying and rolling mechanism and paper container manufacturing equipment, and belongs to the technical field of paper container machining. A conveying assembly is arranged to convey paper sheets, a rolling assembly in transmission connection with the conveying assembly is arranged to roll the edges of the paper sheets in the paper sheet conveying process, and the conveying assembly and the rolling assembly share one power source; transmission synchronism is good, more stable and reliable, the problem that paper sheets cannot be conveyed is solved, the multiple rolling assemblies are arranged on the paper sheet conveying path, the multiple rolling assemblies are connected in a meshed mode, synchronism of the multiple rolling assemblies is improved, and then the paper sheet rolling effect is improved.

The utility model provides a kind of adjustable seafood quick thawing processing device. A kind of adjustable seafood quick thawing processing device includes: warehouse body and conveyer belt, conveyer belt is located in the inside of warehouse body, the inside of warehouse body is provided with multiple oscillation rods, and oscillation rod is located in the inside of conveyer belt, wheel group is all provided on oscillation rod, belt two is provided between wheel group, and wheel group of the odd-numbered oscillation rod is arranged on the front of warehouse body, wheel group of the even-numbered oscillation rod is arranged on the back of warehouse body, one end of the oscillation rod located in the leftmost side of warehouse body is fixedly connected with gear one, the front of warehouse body is rotatably connected with gear two, gear two is engaged with gear one, and gear two is also fixedly connected with steering wheel. The utility model provides a kind of adjustable seafood quick thawing processing device can break the cold water layer formed on the surface of seafood due to thawing heat absorption, let the water of higher temperature around quickly contact seafood, so as to accelerate heat transfer, significantly shorten thawing time.

The invention belongs to the technical field of straight seam steel pipe machining, particularly relates to a straight seam steel pipe machining method, a straight seam steel pipe manufactured through the straight seam steel pipe machining method, a welding core and a welding flux, and aims to solve the problem of the forming quality of the two sides of a welding seam of the straight seam steel pipe. The processing method of the straight seam steel pipe is characterized by comprising the following steps: rolling for the first time; welding for the first time; rolling for the second time; and welding for the second time. According to the technical scheme, the problem of straight edges on the two sides of a welding seam can be effectively solved, welding seam angular distortion is reduced, and the roundness and straightness of a steel pipe are improved.

The invention discloses an agricultural plant protection pesticide spreading unmanned aerial vehicle, and relates to the technical field of plant protection unmanned aerial vehicles, the agricultural plant protection pesticide spreading unmanned aerial vehicle comprises a vehicle body, an inlet is formed in the upper end of the vehicle body, a pesticide spreading mechanism is arranged in the vehicle body, the center of the lower end of the vehicle body fixedly communicates with a conical pipe, and the bottom of the conical pipe fixedly communicates with a straight pipe; the bottom of the straight pipe is detachably connected with an atomizing spray head capable of atomizing, the atomizing spray head is in a circular arc shape, and the surface of a grinding roller and the surface of a filtering disc are rough, so that the grinding effect of agricultural medicine particles can be better promoted, and the agricultural medicine particles can be better dissolved in water; and through the design that the connecting rod is rotationally connected with the grinding roller, the grinding roller can also rotate when rotating with the rotating shaft as the axis, so that the side face of the grinding roller can grind the agricultural medicine particles on the filtering disc, and the grinding effect on the agricultural medicine particles is further promoted.

The invention relates to the field of invoicing printing ink optimization, in particular to an invoicing printing ink coiling performance optimization method and device and a medium. The method comprises the following steps: acquiring an initial formula set A of instant billing printing ink; traversing A to obtain an input vector corresponding to Ai, a coiling length and a confidence coefficient of the coiling length; training the target neural network model by using the training sample set and the corresponding label set; inputting the input vector G corresponding to the target formula into a trained target neural network model to obtain a coiling length L'corresponding to the target formula and a confidence coefficient Z 'of the coiling length; and if the L'does not belong to the target length range, performing a first round of adjustment on the mass percentage of the components included in the target formula, and if the coiling length corresponding to the formula after a certain adjustment in the first round of adjustment belongs to the target length range, outputting the confidence coefficient of the formula after the adjustment in the first round of adjustment and the corresponding coiling length. According to the invention, the coiling performance of the instant billing printing ink can be optimized.

The utility model discloses a kind of wind pipe plate composite use roll press type gluing device, it is related to wind pipe plate processing technical field, including rack, the top of the rack is fixed with support plate, the top of the support plate is fixed with mounting bracket, the inner wall of the mounting bracket is rotatably connected with rotating rod, and one end of the rotating rod is installed with unwinding roller, the utility model has beneficial effect for: rack is as basic support structure, and it provides stable mounting platform for entire device, support plate is fixed in the top of rack, and mounting bracket and rotating rod, unwinding roller and the like components are installed on it, so that the unwinding operation of core plate can be orderly carried out, core plate is wound on unwinding roller, subsequent processing procedure is facilitated, the setting of three groups of first limiting roller can play good guiding and limiting effect to core plate, ensure that core plate keeps stable path during conveying process, avoid the situation of deviation, provide good prerequisite for subsequent gluing and composite procedure.

The invention relates to the technical field of high-entropy alloys, in particular to a high-strength Ni-Co-Cr-Mo series high-entropy alloy and a preparation method thereof.The alloy comprises the chemical components of nickel, cobalt, chromium and molybdenum, and the atomic ratio of the chemical components is as follows: 35%-40% of nickel, 25%-40% of cobalt, 15%-30% of chromium and 5%-10% of molybdenum; the atomic ratios of nickel, cobalt, chromium and molybdenum in the high-entropy alloy are 37.6%, 28.2%, 28.2% and 6% respectively; the atomic ratios of nickel, cobalt, chromium and molybdenum in the high-entropy alloy are 35.51%, 35.37%, 22.91% and 6.21% respectively; the high-entropy alloy is excellent in strength; the preparation process is easy to operate and low in cost, and the prepared high-entropy alloy has the advantages of being small in impurity amount and uniform in component; the rolling assembly is adopted, and rod-shaped materials with different section diameters can be rolled, so that the rolling range is widened, and the rolling effect of the rod-shaped materials is improved; and the feeding assembly is adopted, the rod-shaped materials can be automatically clamped, then the rod-shaped materials are automatically pushed, automatic rolling of the materials is improved, and the using effect of the equipment is improved.

The utility model discloses beer filtering equipment, which belongs to the technical field of beer production and comprises a filtering box, a filtering plate and a rolling component, a feeding pipe is arranged at the top of the filtering box, a discharging pipe is arranged at the bottom of the filtering box, the filtering plate is slidably mounted in the filtering box, and the rolling component is mounted in the filtering box. The rolling assembly comprises a reciprocating lead screw, a driving assembly, a supporting rod, a mounting frame, a roller and an elastic connecting assembly, the reciprocating lead screw is arranged above the filter plate and rotationally connected with the inner wall of the filter box, a shell is fixedly connected to one side of the filter box, the driving assembly is arranged in the shell, and the supporting rod is arranged on the mounting frame. One end of the supporting rod is connected to the reciprocating lead screw in a sleeving mode and is in threaded connection with the reciprocating lead screw, the mounting frame is arranged below the supporting rod, the roller is rotationally mounted on the mounting frame, and the elastic connecting assembly is fixedly connected between the supporting rod and the mounting frame; by arranging the rolling assembly, in the filtering process, residues on the filtering plate can be rolled, filtering of beer is accelerated, and the filtering efficiency is improved.

The invention discloses metal rolling equipment for machining a bridge body of a bridge, and relates to the technical field of metal rolling equipment.The metal rolling equipment comprises an object roller conveyor, a rolling mechanism is arranged at the right side end of the object roller conveyor, and a fixed side plate is fixedly installed at the upper end of the object roller conveyor; a lubricating oil tank is fixedly mounted at the upper end of the fixed side plate, an oil dripping hole is formed in the bottom of the inner wall of the lubricating oil tank in a penetrating mode, a blocking block is slidably mounted in the oil dripping hole formed in the lubricating oil tank, and a connecting plate is fixedly mounted at the upper end of the blocking block. According to the stainless steel plate rolling device, the two brush fixing rods are arranged, so that brushes on the two brush fixing rods can sweep oxide skin, greasy dirt, dust and other impurities on a stainless steel plate while the stainless steel plate is conveyed by the stainless steel plate rolling device, the impurities are prevented from being embedded into metal or influencing the surface quality of products during rolling, and the quality of the rolled stainless steel plate is improved.

The utility model relates to the technical field of electronic equipment accessories, in particular to a film pasting device and a film pasting assembly, the film pasting device comprises a bottom shell and an operation assembly, the bottom shell is in sliding connection with the operation assembly, the operation assembly comprises a support shell, a floating plate and a film pressing assembly, one end of the floating plate is connected with the support shell, and the film pressing assembly is connected with the floating plate. The film pressing assembly is arranged on the side, facing the bottom shell, of the floating plate. One end of the floating plate is connected with the support shell, the floating plate and the support shell form a cantilever beam structure, the film pressing assembly can float up and down relative to the bottom shell, the structure is simple, production and assembly are easy, and the up-down floating enables the pressure applied by the film pressing assembly to be uniform and unified; the film pressing assembly floats up and down to achieve full attachment of the attached film, the attaching effect of the attached film is effectively improved, bubbles generated in the film attaching process are extruded out, the operation assembly can be smoothly pushed and pulled in the film attaching process to conduct back-and-forth transmission, and the whole film attaching process is more stable.

The invention relates to the technical field of metal processing, in particular to a thin plate rolling mill for beryllium plate preparation and a using method thereof.The thin plate rolling mill is characterized in that a heat preservation plate is fixedly installed on a thin plate rolling mill body, a heat preservation cavity is formed between the heat preservation plate and the thin plate rolling mill body, and an air inlet is formed in the heat preservation plate; the driving devices are located in the heat preservation cavity and linearly arrayed on the thin plate rolling mill body. The driving device consists of a motor, a driving roller, a driven roller, a driving wheel and a driven wheel; an adjusting assembly is mounted on the driven roller, adjusting plates are annularly arrayed in the adjusting assembly, and the adjusting assembly drives the adjusting plates to rotate to change the diameter of the air inlet; according to the metal beryllium rolling heat preservation device, the heat preservation effect in the metal beryllium rolling process is achieved through introduction of the heat preservation cavity and the high-temperature argon, meanwhile, oxygen in the heat preservation cavity is exhausted, the oxygen in the heat preservation cavity is exhausted, the heat preservation effect is improved, and the service life of the metal beryllium rolling device is prolonged. And the metal beryllium is prevented from being oxidized in the rolling process.

This invention relates to the field of shampoo and hair care products, and more particularly to a method and equipment for producing shampoo and hair care products containing Platycladus orientalis leaf extract. The equipment includes a housing; a pressure roller for crushing plant materials is mounted on a movable base; a perforated plate for carrying the plant materials is installed inside the housing; the perforated plate has several holes; a second moving drive component, a connecting frame, and sealing columns are also included; the second moving drive component is mounted on the housing; the connecting frame is connected to the driving end of the second moving drive component; several sealing columns are mounted on the connecting frame. This invention utilizes the sealing columns to completely block the holes, and in addition to sealing the perforated plate, the sealing columns form several protrusions on the material-carrying surface of the perforated plate. The protrusions of the sealing columns and the grooves on the pressure roller form a corresponding concave-convex structure, which enhances the crushing effect on the plant materials.

This application relates to a construction equipment and method for municipal road asphalt concrete pavement, comprising a frame, a support wheel at the front end of the frame, and a drive steering wheel at the rear of the frame. A compaction device is mounted on the support wheel, comprising a plurality of arc-shaped compaction plates rotatably connected to the frame and rotating along the axis of the support wheel. Each arc-shaped compaction plate can abut against the lower outer side of the support wheel. The support wheel has a positioning part that positions the arc-shaped compaction plates away from the ground. When the positioning part positions the arc-shaped compaction plates, a gap is formed between the ends of the arc-shaped compaction plates, allowing the support wheel to abut against the ground. This application achieves a better human-machine interaction experience by minimizing parameter changes between the compaction mode and the transfer mode when the equipment has the function of relocating to different sites.

The utility model relates to the technical field of rolling devices, and discloses a rolling and stirring device which comprises a support frame, a rolling cylinder, a turntable, a transmission rod, a rolling roller, a stirring rod and the like, an arc-shaped strip is fixedly connected to one end, far away from a rotating shaft, of the stirring rod, and the bottom surface of the arc-shaped strip is in sliding contact with the bottom surface of an inner cavity of the rolling cylinder. A blocking strip is fixedly connected to the middle of the arc-shaped strip, and a closed ring is formed between the blocking strip and the arc-shaped strip. According to the utility model, when the motor drives the grinding roller to grind and process the refractory material, the arc-shaped strip is driven by the stirring rod to rotate, so that the refractory material extruded by the grinding roller can be scraped by the arc-shaped strip and returns to the motion trail of the grinding roller again, and the grinding effect is improved; and the refractory material can be effectively prevented from moving to the middle of the rolling barrel through the blocking strips, so that the refractory material can be always rolled on the motion trail of the rolling roller.

This utility model relates to the field of cable technology and provides a torsion-resistant cable, comprising: multiple conductors and a cross-shaped spacer, wherein the cross-shaped spacer is attached to the multiple conductors, a shielding layer is fixedly connected to the outer surface of the conductors, and a buffer layer is provided between the shielding layer and the cross-shaped spacer. It also includes: a reinforcing mesh, fixedly connected to the outer surface of the shielding layer; the multiple conductors are separated by the cross-shaped spacer to prevent them from tangling together and affecting the transmission of power signals; the shielding layer is fixedly connected to the outer surface of the conductors, and the shielding layer is made of copper foil, which has excellent conductivity and can effectively shield high-frequency electromagnetic interference; the buffer layer is provided between the shielding layer and the cross-shaped spacer, and the buffer layer is made of polystyrene foam, which has good shock absorption and cushioning performance, can absorb impact energy, and protect the internal conductors from damage; the reinforcing mesh can improve the flexibility of the cable body and prevent damage to the conductors.

This utility model relates to the field of soil testing technology and discloses a soil dilution device for soil testing, including a dilution cylinder, a filter plate, and a rolling roller. A vent pipe is fixedly connected to one side of the stirring pipe, and an air intake mechanism is connected to the top of the fixed pipe. Actuating pipes are connected at equal intervals to the bottom of the vent pipe. Two actuating balls are fixedly connected to the center of the bottom of the filter plate, and the bottom of the actuating balls abuts against an arc-shaped plate. One side of the arc-shaped plate is connected to the stirring pipe. The rolling roller abuts against the top surface of the filter plate. A spraying mechanism is connected to the left side of the dilution cylinder. This utility model, through the coordinated use of the air intake mechanism, actuating pipes, and rolling roller, allows the air intake mechanism to heat the crushed and screened soil through the actuating pipes during soil dilution and screening, thereby reducing the moisture content of the soil. Then, the rolling roller's compaction improves the efficiency of soil crushing and screening, ensuring the effectiveness of soil dilution.

The embodiment of the invention provides paperboard printing equipment and an environment-friendly printing process, and relates to the technical field of paperboard printing. The paperboard printing equipment comprises a printing part and a conveying belt, the conveying belt penetrates through the printing part, a leveling platform is arranged at the feeding end of the conveying belt, a support is arranged at the upper end of the leveling platform, a first sliding groove is formed in the middle of the top end of the support, and a rolling mechanism is installed in the first sliding groove. A top plate drives a pressing roller to roll and level a paperboard on a leveling platform through rotation of a first lead screw, when the first lead screw rotates, a second lead screw and a third lead screw rotate through meshing of a first bevel gear and a second bevel gear and meshing of a third bevel gear and a fourth bevel gear, and therefore a second mounting sleeve drives a push plate to move relative to the pressing roller; at the moment, the push plate needs to be rotated to one side to meet the rolling operation of the pressing roller, after rolling, the push plate is rotated to be horizontal, the leveled paperboard is pushed to the conveying belt through the push plate to be printed, and the step of manual feeding after the paperboard is leveled is omitted.

The utility model provides a meat grinder for pet food, and relates to the field of pet food processing machines. The meat grinder for the pet food comprises a discharging pipe, a processing cavity is fixedly installed at the lower end of the discharging pipe, a motor is arranged above the discharging pipe, a transmission shaft is fixedly installed on an output shaft of the motor, the lower end of the transmission shaft penetrates through the discharging pipe and the processing cavity, and a plurality of blades are fixedly installed at the end, located in the processing cavity, of the transmission shaft. The bottom end of the machining cavity is fixedly provided with a bent pipe communicated with the interior of the machining cavity, a rolling cavity is formed below the machining cavity, the upper end of the rolling cavity is fixedly provided with an outer ring and an inner ring, the outer ring is fixed to the upper end of the rolling cavity, the upper end of the outer ring is fixedly provided with a connecting ring, the lower end of the bent pipe penetrates through the connecting ring, and the inner ring is fixed to the inner circle of the connecting ring. According to the meat grinder for the pet food, by arranging the processing cavity, the grinding cavity and the conical roller, the effects of rough machining and fine machining can be achieved at a time, and the problem that the fluidity of low-temperature meat paste is poor is solved.

The utility model relates to a kind of copper plate strip rolling processing equipment, the equipment includes equipment main body;The equipment main body is provided with rolling chamber inside;The equipment main body top is provided with rolling cylinder, and the telescopic end of rolling cylinder is fixed with pressing plate;The pressing plate is set just above rolling chamber;The equipment main body one side is provided with push cylinder, and the telescopic end of push cylinder is penetrated into rolling chamber, and fixed with push plate;The equipment main body other side is provided with the opening for push plate to push out the copper plate strip rolled;The opening is hinged with baffle by torsion spring. Compared with prior art, the utility model has copper plate strip rolling effect good, and rolling efficiency higher advantage.

The utility model discloses a battery pole piece rolling device which comprises an arc-shaped roller, end shafts are arranged at the two ends of the arc-shaped roller, and the end shafts are inserted into a roller frame; the transverse adjusting mechanism is arranged on the roller frame, is connected with the end shaft and is used for adjusting the shape of the arc-shaped roller according to the shape of the battery pole piece; the vertical adjusting mechanism is connected with the roller frame and is used for adjusting the pressure of the arc-shaped roller on the battery pole piece; according to the utility model, the arc-shaped roller with a variable shape is arranged, the transverse adjusting mechanism is utilized to adjust the shape of the arc-shaped roller in real time according to the shape of the battery pole piece for adaptation, and the vertical adjusting mechanism is utilized to adjust the pressure of the arc-shaped roller on the battery pole piece in real time according to the required rolling pressure, so that a better rolling effect is achieved; the tedious operation of frequently replacing the compression roller is avoided, the production operation difficulty is reduced, the efficiency is further improved, and the production time is saved.

This application discloses a rolling mill leveling device, including a base with a connecting bracket on the upper side, a lower leveling roll group located below the connecting bracket, an upper leveling roll group located above the lower leveling roll group and forming a leveling gap with the lower leveling roll group, an adjustment mechanism located above the connecting bracket and connected to the upper leveling roll group, a cleaning mechanism located on the left side of the connecting bracket, a rotating access mechanism rotatably connected to the left side of the base, and an intermediate auxiliary conveying mechanism located on the lower left side of the connecting bracket and to the right of the cleaning mechanism. This application uses the rotating access mechanism to receive the strip unwound by the uncoiling device, the cleaning mechanism to clean impurities from the strip surface, the intermediate auxiliary conveying mechanism to guide the strip into the leveling gap, and the adjustment mechanism to adjust the size of the leveling gap, thereby achieving precise leveling of the strip thickness. This process effectively cleans impurities from the strip surface, avoiding damage to the leveling roll surface, and ensures the surface quality of the strip, meeting higher production and product quality standards.

The utility model discloses a rubber layer structure of a rolling mill ironing roller. The rubber layer structure comprises an ironing roller shaft, an ironing roller shaft neck, a buffer rubber layer and a rigid rubber layer, ironing roller shaft necks are arranged at the two ends of the ironing roller shaft in a protruding mode respectively and used for being installed with an ironing rolling mill in a matched mode. The buffering rubber layer is arranged on the roller surface of the ironing roller shaft in a sleeving mode, the rigid rubber layer is arranged on the buffering rubber layer in a sleeving mode, the hardness of the buffering rubber layer is smaller than that of the rigid rubber layer, the rigid rubber layer is used for pressing and rolling a metal plate, and the buffering rubber layer is used for buffering impact generated by rigid contact between the rigid rubber layer and the metal plate. The rubber layer structure is soft to hard from inside to outside, so that the rigid contact between the rigid rubber layer and the metal plate to be rolled can be buffered, the friction force between the rigid rubber layer and the metal plate can be reduced, and the service life is prolonged.