29results about How to "Avoid uneven pressure" patented technology

The invention relates to the field of machining and automatic control, in particular to a pressure-sensing precision mechanical part polishing brush system and method. Comprising the following steps: converting and processing pressure data to obtain processed pressure data; calculating the difference between the current pressure and the target pressure based on the processed pressure data, and mapping the target pressure into the path track; optimizing the path through the path optimization objective function and the constraint condition to obtain an optimized path; based on the optimized path, obtaining a torque variation; a path adjustment amount is obtained through the torque variation; and correcting the optimized path through the gain parameter and the path adjustment amount to obtain a corrected path. The problems that the relation between the motion trail of the brush and the contact pressure is not accurately processed, and the motion trail of the brush is difficult to accurately control are solved.

The invention provides an automobile evaporator split type collecting pipe riveting assembly tool and method, and belongs to the field of automobile machining.The assembly tool comprises a fixing table, a supporting frame, an air pressure driving assembly, an upper pressing die and a lower pressing die, the air pressure driving assembly controls the upper pressing die to move through a telescopic rod, and the lower pressing die is connected with the supporting frame; the collecting pipe is clamped by the upper pressing die and the lower pressing die, buckling teeth on the collecting pipe are bent and pressed through a movable die of the upper pressing die, and riveting of the split type collecting pipe of the automobile evaporator is completed at a time; the assembling method comprises the steps of placing the cover plate and the main plate, positioning the split type collecting pipe of the automobile evaporator, bending the buckling teeth, pressing the buckling teeth and resetting, the multiple buckling teeth are bent and pressed at the same time through the multiple bending teeth on the movable die, and riveting of a section of collecting pipe can be completed through one-time machining circulation of the assembling tool. The production efficiency is obviously improved, and the production period is shortened; in addition, a precise positioning technology and a pressure control algorithm are adopted, and riveting reliability and sealing performance are ensured.

The invention provides a uniform-oiling and adjustable-oiling-rate precursor preparation device and a control method thereof.The uniform-oiling and adjustable-oiling-rate precursor preparation device comprises a pressing roller, a pressing roller driving assembly and an upper filament drawing transmission roller, precursor capable of advancing is arranged on the periphery of the upper filament drawing transmission roller, and the pressing roller driving assembly is arranged on the periphery of the upper filament drawing transmission roller; the pressing roller is located at the upper end of the upper wire drawing transmission roller and can make contact with the protofilaments so as to apply pressure to the protofilaments on the upper wire drawing transmission roller, and the pressing roller driving assembly can drive the pressing roller to apply different pressures to the upper wire drawing transmission roller according to different specifications of the protofilaments and the number of spinning positions. It is guaranteed that the precursor reaches the target oiling rate, and the oiling rate is uniform. According to the invention, the problems that the pressure on multi-spinning-position tows is not uniform, the oiling cannot reach a target value due to overlarge pressure of the compression roller, or the adjustable range of the oiling rate of a multi-specification engineering preparation production line is small in an existing compression roller control mode can be solved.

The utility model relates to a kind of safety protection structure of grinding machine, including the protective cover being set on workbench, grinding head is equipped in protective cover, grinding head is driven by grinding head driving device, operating door and safety lock are equipped on protective cover, safety lock includes controller, first lock body is installed on protective cover, second lock body is installed on operating door, locking piece for locking;The controller is electrically connected with grinding head driving device, for receiving the start-stop machine signal of grinding head driving device;Locking piece has the locking state of the mutual locking of first lock body and second lock body, and, locking piece has the unlocking state of the relative displacement of first lock body and second lock body;The controller is electrically connected with the locking piece, for controlling the action of locking piece, realize the switching between locking state and unlocking state.Safety lock identifies the start-stop signal of driving device by controller, grinding head starts, safety lock maintains locking state, operating door cannot be opened relative to protective cover, ensure worker operation safety.

The present invention relates to the field of mechanical processing and automatic control, and in particular to a pressure-sensitive precision mechanical parts polishing brush system and method. The system comprises: converting and processing pressure data to obtain processed pressure data; based on the processed pressure data, calculating the difference between the current pressure and the target pressure, and mapping the target pressure to the path trajectory; optimizing the path through the path optimization objective function and constraint conditions to obtain the optimized path; based on the optimized path, obtaining the torque change; obtaining the path adjustment amount through the torque change; correcting the optimized path through the gain parameter and the path adjustment amount to obtain the corrected path. The system solves the problem that the relationship between the brush motion trajectory and the contact pressure is not accurately processed, and the problem that the brush motion trajectory is difficult to accurately control.

The utility model relates to the technical field of heat conduction performance test, disclose a device for testing silicon grease thermal resistance, including base, base outer wall fixedly connected with support plate, base outer wall fixedly connected with support wheel, the extrusion subassembly that is provided with in base top, the extrusion subassembly includes cylinder, cylinder sets up in base top, support plate outer wall fixedly connected with slide post, slide post outer wall slidingly connected with connecting plate no.

The utility model provides a kind of for special-shaped vacuum bag of special-shaped mould, the special-shaped mould includes the mould cavity of trapezoidal cross section;The special-shaped vacuum bag is set on the mould cavity and seals the mould cavity;The cross-sectional shape of the special-shaped vacuum bag includes the main body structure of convex letter shape, and the main body structure includes sequentially arranged from top to bottom center protruding portion, lateral recess portion and base portion.The special-shaped vacuum bag provided by the utility model can meet the requirement of air tightness and vacuum keeping when applied to special-shaped mould, ensure the forming quality of composite material, avoid bubble, void and other problems.

The utility model discloses an automatic tile mosaic paving device in the technical field of tile paving, which comprises a push handle, a tile paving mechanism and a stabilizing mechanism are arranged in front of the push handle, a lower pressing plate is fixedly mounted at the transmission end of a hydraulic rod, a suction cup is fixedly mounted at the lower end of the lower pressing plate, and a brick is arranged below the suction cup. The tile mosaic automatic paving device is composed of the push handle, the tile paving mechanism and the stabilizing mechanism, the tile paving mechanism and the stabilizing mechanism supplement each other, the tile paving mechanism adopts a hydraulic driving mode, bricks can be stably put down, the stability of brick paving is ensured, the labor intensity of workers can be reduced through automation of the tile paving mechanism, and the production efficiency is improved. And the stabilizing mechanism adopts a crawler-type stable displacement structure to stably drive the whole device to stably displace, so that the accurate and stable laying effect is achieved, and a counterweight in the stabilizing mechanism can stably press the bricks, so that the effect of stably pressing the bricks is achieved, and it is ensured that the bricks are tightly attached to the ground.

This utility model relates to the field of production line material stacking technology and discloses a production line material stacking positioning card. The upper end of the base is fixedly installed with a surrounding plate. The two sides of the surrounding plate are symmetrically provided with storage slots. The bottom of the two storage slots is fixedly installed with two connecting seats. The upper end of the two connecting seats is provided with a groove. By setting a lifting mechanism composed of a bidirectional adjusting screw, a movable block and a diamond-shaped folding plate, when the handle is turned to drive the bidirectional adjusting screw to rotate, the reverse threads at both ends drive the movable block to move towards or away from each other, causing the folding plate to rotate around the shaft as the fulcrum. The horizontal displacement of the movable block is efficiently converted into the vertical lifting of the connecting seat, realizing precise adjustment of the lower pressure plate height. Because of the action inside the storage slot, the folding plate can be completely stored in the storage slot when folding, greatly reducing the axial space occupation in the non-working state and solving the installation and operation limitations in a space-constrained environment.

The invention discloses a drip irrigation tail end filter with a pressure adjusting function and an operation process of the drip irrigation tail end filter. The drip irrigation tail end filter comprises a shell, an end cover, a lamination filter set located in the shell, a flow guide assembly surrounding the outer side of the lamination filter set and a cleaning assembly located in the middle of the lamination filter set. A water outlet is formed in the top of the shell, a drain outlet is formed in the bottom of the shell, the bottom is communicated with a base, a screen sleeve is arranged in the middle of the base, and a water inlet is formed in the base; water flow entering the tail-end filter rises upwards in a spiral shape, the spiral water flow is uniformly dispersed on the laminated filter group through the flow guide assembly to be filtered, accumulation of impurities on the laminated filter group is effectively avoided, the service life of the laminated filter group is prolonged, and meanwhile, the cleaning assembly is matched to filter the water flow while the water flow is filtered, so that the service life of the laminated filter group is prolonged. The water inlet amount and the water outlet amount can be automatically controlled according to the pressure in the tail end filter, the stability of the pressure in the tail end filter is guaranteed while efficient filtering is achieved, and the stability of the water outlet amount is improved.

The invention discloses an automatic decontamination device and method for a steam generator, and the device comprises a pressurization mechanism which is used for guaranteeing the sealing performance of the interior of the steam generator, a liquid discharge mechanism which is used for discharging the waste liquid after decontamination and cleaning out of the steam generator, and a spraying mechanism which is used for spraying a decontaminant to the inner surface of the steam generator. The spraying mechanism comprises a multi-path pesticide supply mechanism, a decontamination mechanical arm and a decontamination hose fixed to the decontamination mechanical arm, an outlet of the decontamination hose is connected to a spray head, the decontamination mechanical arm is composed of a mechanical arm fixed section, a rotary link, a mechanical arm movable section, a rotary connecting rod, the spray head and the decontamination hose, the mechanical arm movable section can rotate by 360 degrees, and the spray head is connected with the rotary connecting rod. By combining the mechanical arm with the space capable of rotating by 360 degrees and the spray head, the foam detergent is sprayed to the water chamber on the lower portion of the steam generator and other surfaces needing to be decontaminated, then clean water is used for flushing the foam detergent thoroughly, waste liquid is discharged into the waste liquid box for treatment, the method is simple, the decontamination effect is good, and the decontamination efficiency is improved.

The utility model relates to a gravity blanket which comprises a blanket body, the blanket body is formed by weaving thick threads, the thick threads comprise a flexible net-shaped body, the flexible net-shaped body extends in the axial direction of the thick threads, and ventilation net holes are formed in the flexible net-shaped body. Due to the fact that the thick lines are heavy, additional weighting materials do not need to be adopted, the problem of uneven pressure is avoided, the outer surfaces of the thick lines are the flexible net-shaped bodies, the gravity blanket has the advantage of being soft and good in air permeability, and the problems that an existing gravity blanket is poor in air permeability, uneven in pressure and difficult to bend are solved.

The utility model belongs to the technical field of moxa cone manufacturing, and particularly relates to a moxa cone manufacturing device for fine moxibustion. Comprising a base, a conical mold is arranged above the base, and a conical mold cavity is formed in the conical mold; a cylindrical die is arranged above the conical die, and a cylindrical die cavity is formed in the cylindrical die; a guide mold is arranged above the cylindrical mold, and a guide mold cavity is formed in the guide mold; a pressing die is arranged above the guide die, a pressing column is arranged on the lower surface of the pressing die, the axis of the conical die cavity, the axis of the cylindrical die cavity and the axis of the guide die cavity coincide, and the pressing column extends into the guide die cavity. The final fine moxibustion moxa cone is complete in surface and uniform in size, does not need a forming box, and is convenient and simple to manufacture.

The utility model discloses an automobile engine cover stamping device which comprises a stamping assembly, a pressing assembly, a pressing assembly, a pressing assembly, a pressing assembly, a pressing assembly and a pressing assembly. The stamping assembly comprises a lower die plate and an upper die plate placed above the lower die plate. A protection assembly; the protection assembly comprises positioning holes formed in the four corners of the upper end of the lower die plate, telescopic springs placed in the centers of the interiors of the positioning holes, positioning columns connected to the four corners of the bottom end of the upper die plate, hollow circular grooves formed in the interiors of the positioning columns and pressure sensors connected to the top ends of the interiors of the positioning columns. The safety assembly is connected to the outer side faces of the lower die plate and the upper die plate. The automobile engine hood stamping die solves the problems that when an existing automobile engine hood is subjected to stamping production, an upper die block is moved to be attached to a lower die block, so that the automobile engine hood placed in a die cavity is stamped, but when the lower die block is pressed downwards unevenly by the upper die block, the automobile engine hood is stamped unevenly, product quality is affected, and production efficiency is affected. And the service life of the lower die plate is shortened due to non-uniform punching for a long time.

The utility model relates to the field of coffee beverage making appliances, and discloses a coffee powder pressing device with a balancing constant force structure, which comprises a main body, a first knob is fixedly connected to the top end of the main body, the first knob is connected with a moving plate through an extrusion assembly, and a rotating plate is fixedly connected to the bottom end of the moving plate. An inner gear ring is fixedly connected to the inner wall of the main body, a first gear is connected to the inner side of the inner gear ring in a meshed mode, the outer wall of the first gear is rotationally connected to the inner wall of the main body, and the first gear is connected with a rotating plate through a transmission assembly. According to the coffee machine, coffee powder in the powder bowl is compacted by pressing the moving plate and the rotating plate downwards, compared with manual powder pressing, the mode can avoid uneven pressure caused by human factors, it is guaranteed that the powder pressing force is the same every time, the consistency and stability of coffee extraction can be improved, the device further has the powder distribution function, and therefore the coffee machine is convenient to use. And additional powder distribution tools are reduced, and the application range of the device is widened.

The invention discloses an injection mold pressure testing device, and relates to the technical field of mold pressure detection, the injection mold pressure testing device comprises a base, the top of the base is fixedly provided with a workbench, the top of the workbench is fixedly provided with a fixing frame, and the top of the fixing frame is fixedly provided with a hydraulic push rod; meanwhile, the movable end of the hydraulic push rod penetrates through the fixing frame and is fixedly provided with a movable plate, guide rods are symmetrically installed on the two sides of the top of the movable plate, the two guide rods are both in sliding connection with the fixing frame, and the device further comprises two sets of pressure sensors fixedly installed at the bottom of the movable plate; according to the invention, when a larger mold is tested, the contact area with the mold can be enlarged, the uneven pressure caused by the contact area is avoided, the accuracy of injection mold testing is prevented from being influenced, the blowing molds with different sizes can be used, the applicability is improved, and when the pressure of the larger mold is tested, the situation that the pressure intensity is too large and the testing accuracy is influenced can be avoided. And unnecessary damage and abrasion of the mold are avoided.

The invention discloses a hydraulic engineering detection device for hydraulic engineering, and relates to the technical field of detection devices.The hydraulic engineering detection device comprises a detection box, a hydraulic rod is arranged at the top of the detection box, a cleaning device is arranged on the inner wall of the detection box, a clamping device is arranged above the cleaning device, and the detection box comprises a box body, a door plate, a bottom plate and a hydraulic rod; the door plate is hinged to one side of the box body, the bottom plate is fixedly connected to the bottom of the box body, the cleaning device comprises a first connecting rod, a first sliding seat, a vertical rod, a first telescopic rod, a sliding rod and a base plate, the first connecting rod is fixedly connected to the bottom end of a hydraulic rod, and the bottom end of the vertical rod is fixedly connected to the upper surface of the bottom plate. According to the dust collection device, the working procedures of a user are reduced, unnecessary working time procedures are avoided, dust particles can be conveniently cleaned in the later period, and the working efficiency of the user is improved.

The utility model discloses a rewinding machine relates to the field of steel wire net processing, include: raw material frame and rewinding frame, the raw material frame top swing is provided with raw material roll, the raw material roll is used for winding the uncompacted steel wire net, the rewinding frame top swing is installed with rewinding roll, the rewinding roll is used for winding steel wire net, the rewinding roll one side is provided with the recess, the recess is used for fixing steel wire net, this kind of rewinding machine, through setting up bilateral symmetry's auxiliary shaft compaction mechanism, realized the dynamic pressurization of steel wire roll layer by layer, the inside symmetrical arrangement of movable frame no.

The utility model relates to the technical field of cigarette manufacturing, in particular to a tobacco leaf kneading and pressing device which comprises a kneading and pressing part, a power part and a containing part used for containing tobacco leaves. The power part drives the kneading and pressing part to do reciprocating motion in the vertical direction so as to repeatedly knead and press the tobacco leaves in the containing part; tobacco leaves are kneaded and pressed for multiple times through the kneading and pressing part, the tobacco leaves can be tightly compressed, it is ensured that more tobacco leaves can be contained in the same storage space, and the tobacco leaf kneading and pressing efficiency and the warehouse utilization rate are effectively improved. In addition, the tobacco leaves can be compressed more evenly through multiple times of kneading and pressing, the internal structures of the tobacco leaves are gradually adjusted, it is guaranteed that the density of the tobacco leaves in all areas is consistent, the tobacco leaf quality is improved, and uneven internal pressure of the tobacco leaves caused by one-time excessive compaction is effectively avoided.

The invention proposes a riveting assembly tool and an assembly method for a split collector of an automobile evaporator, which belongs to the field of automobile processing. The assembly tool comprises a fixed table, a support frame, a pneumatic drive component, an upper die and a lower die. The pneumatic drive component controls the movement of the upper die through a telescopic rod, so that the upper die and the lower die clamp the collector and use the movable die of the upper die to bend and press the buckle teeth on the collector, so as to complete the riveting of the split collector of the automobile evaporator at one time; the assembly method comprises the steps of placing a cover plate and a main board, positioning the split collector of the automobile evaporator, bending the buckle teeth, pressing the buckle teeth and resetting, and a plurality of buckle teeth are bent and pressed at the same time by a plurality of bending teeth on the movable die, and the riveting of a section of the collector can be completed by one processing cycle of the assembly tool, which significantly improves the production efficiency and shortens the production cycle; in addition, precise positioning technology and pressure control algorithm are adopted to ensure the reliability and sealing of the riveting.

This utility model relates to the field of oil cooler testing, specifically an oil cooler airtightness testing device, including a working box. Airbag 1 and Airbag 2 are fixedly connected to the inner wall of the working box. The working box is fixedly installed on the top of a working plate, and an air pump is fixedly installed on the top of the working plate. The air outlet of the air pump is fixedly connected to and connected to a distribution pipe, which injects air into the inflation component and the testing component. This utility model uses inflated airbags 1 and 2 for clamping. Compared with traditional clamping plates with rubber pads, airbags 1 and 2 can conform to the uneven outer wall of the cooler, avoiding uneven local pressure and reducing cooler damage. Pressure sensors 1 and 2 monitor the pressure of airbags 1 and 2 in real time, and, in conjunction with a PLC controller, automatically control the opening and closing of electric valves 1 and 2 to ensure precise clamping force and prevent excessively loose or tight clamping.

The invention discloses a cable connector and a wiring method, and the cable connector comprises a main body housing which is provided with a main wire hole and a plurality of secondary wire holes surrounding the main wire hole, and a communication cavity is formed in the main body housing; the conduction sheet is fixed on the bottom wall of the cavity; the pressing ring is arranged in the cavity and is connected with the linkage part extending to the outside; the locking screw sleeve is rotatably arranged at one end of the main body shell in a sleeving manner and is provided with a thread part, a connecting part connected with the linkage part and an extending hole; and the locking sleeve is arranged in the locking screw sleeve, and the outer wall of the locking sleeve and the inner wall of the extending hole are provided with inclined plane structures which are matched with each other. When the locking screw sleeve is rotated, the linkage part drives the pressing ring to move downwards to press the secondary cable core, and the inclined surface structure enables the locking sleeve to radially contract to tightly hold the main cable, so that mechanical locking of the main cable and electrical connection of a plurality of secondary cables are synchronously completed through single operation, the wiring efficiency is improved, and the connection consistency is ensured.

The invention discloses a battery piece flower basket assembling device and method, and particularly relates to the field of semiconductor device.The assembling device comprises an assembling station, a first feeding mechanism is arranged on the assembling station, the first feeding mechanism comprises a storage rack, side plates are vertically stacked in the storage rack, a first positioning mechanism is arranged on the assembling station, the first positioning mechanism comprises a first clamping jaw, and a second clamping jaw is arranged on the first clamping jaw. The first clamping jaw drives the side plate to move through clamping, so that the side plate is perpendicular to the horizontal plane of the assembling station. A second feeding mechanism is arranged on the assembling station. By arranging the transmission wheel, after the clamping jaw II clamps the cross rod, the cross rod is driven to rotate through the transmission wheel, and the separation teeth are limited through the limiting seat I, so that the effect of adjusting the angle of the separation teeth on the cross rod is achieved, the separation teeth on the cross rod and the upper surfaces of the side plates are kept horizontal, and uneven pressure is avoided when a battery piece is placed; and in the carrying and transporting process, the shaking risk of the battery pieces is reduced, and the battery pieces are well protected.

The utility model discloses a battery test fixture, which comprises an upper pressing part, a lower pressing part and a fastening connecting piece, the upper pressing part is connected and fastened with the lower pressing part through the fastening connecting piece, a middle clamping plate is arranged between the upper pressing part and the lower pressing part, and one end, facing the upper pressing part, of the middle clamping plate is connected with the upper pressing part through a spherical support column. According to the utility model, through the arrangement of the middle clamping plate and the spherical supporting column, the upper pressing part transmits pressure to the middle plate through the spherical supporting column, so that the problem that the pressure on the battery is not uniform due to the fact that the upper pressing part and the lower pressing part are not completely horizontal can be avoided, and meanwhile, the spherical supporting column can relatively rotate before pressing; and the pressure uniformity of the upper pressing part on the battery can be ensured.

The utility model relates to the technical field of wet-process diaphragm tension separation mechanisms, and discloses a wet-process diaphragm tension separation mechanism which comprises a first mounting frame, a first compression roller is rotatably arranged in the first mounting frame, threaded rods are fixedly arranged on the two sides of the top of the first mounting frame, and a second mounting frame is arranged above the first mounting frame. The threaded rod penetrates through the second mounting frame, a second pressing roller is rotatably arranged in the second mounting frame, and the outer side of the threaded rod is in threaded connection with an adjusting block and a pressing block. Then the second mounting frame is mounted above the first mounting frame, the adjusting block is rotated according to the required pressing force, so that the second mounting frame is moved, the tension is adjusted, meanwhile, the second mounting frame is finely adjusted according to the leveling instrument at the top of the second mounting frame, and the situation that the second mounting frame is not horizontal, and consequently the pressure is not uniform is avoided.

The utility model provides an improved structure of aviation tire fabric calender belongs to calender technical field, the improved structure of aviation tire fabric calender includes two mounting plates, and the one end of one mounting plate is provided with the movable slot, screw rod, screw rod rotation is connected between the upper and lower inner wall of movable slot, screw rod nut, screw rod nut is connected on the circumference surface of screw rod with thread, fixed calender roll, fixed calender roll rotation is connected with the end of two mounting plates close to each other, and the micron level displacement of mobile calender roll is realized through screw rod-nut pair cooperation limiting groove, ensures the evenness of double roll gap, avoids uneven pressure of fabric, especially applicable to the ultra -thin high -strength fabric of aviation tire, and the pulling mechanism of independent electric guide rail drive can be active displacement after roll distance adjustment, real -time compensation fabric path length change, keeps constant tension, eliminates the risk of wrinkle.

The present invention relates to the field of transformer testing technology, a transformer oil static pressure test device, including a shell, a cone bucket is provided at the bottom of the inner cavity of the shell, an oil drain pipe extending to the outside of the bottom of the shell is provided at the central bottom end of the cone bucket, a vertical guide plate is provided above the cone bucket, the outer end of the guide plate is fixedly connected to the inner wall of the shell, a horizontal lifting plate is movably sleeved on the guide plate, the outer periphery of the lifting plate is fitted with the inner wall of the shell, an airbag is connected to the lifting plate, the bottom end of the airbag is fixedly connected to the top of the lifting plate, the top of the airbag is connected to the air supply pipe located outside the shell, the volume of the airbag can swell after high-pressure gas is injected into the airbag, forming a downward driving structure of the lifting plate, and the downward lifting plate forms a pressure structure for the transformer oil in the inner cavity to be output along the oil drain pipe. The present invention is conducive to solving the problems that the airbag structure is simple in some existing transformer oil static pressure devices, the expansion and deformation after gas filling is uncontrollable, and the oil drain hole is easily blocked in advance, resulting in work failure.

The utility model relates to the field of nanoimprint, in particular to a rolling device for nanoimprint, which comprises a workbench, a rolling mechanism is arranged at the top of the workbench, the rolling mechanism comprises a support, a first transverse plate is connected to the top of the support, a hydraulic rod is fixedly arranged on one side of the first transverse plate, and the hydraulic rod is connected to the top of the workbench. A second transverse plate is fixedly connected to the output end of the hydraulic rod, a stroke groove is formed in the side wall of the first transverse plate, a displacement block is movably connected into the stroke groove, and a connecting rod is fixedly connected to the side wall of the displacement block; the rolling mechanism is in inclined plane contact with the rollers on the rolling mechanism, the rollers are driven by lifting of the hydraulic rods to move up and down, and the impressing film plate is gradually attached to the wafer during contact, so that the rollers roll the impressing film plate, the rolling device can provide a stable impressing environment and a repeatable impressing result, the consistency and quality of production are ensured, and the production efficiency is improved. And the rolling device can provide highly accurate pressure control and uniform impressing force, so that accurate processing and impressing of a nanoscale structure are realized.