CN113774307A - Self-control air knife elevator structure of equipment for producing hot-dip galvanized sheet and use method - Google Patents

Self-control air knife elevator structure of equipment for producing hot-dip galvanized sheet and use method Download PDF

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Publication number
CN113774307A
CN113774307A CN202111062991.2A CN202111062991A CN113774307A CN 113774307 A CN113774307 A CN 113774307A CN 202111062991 A CN202111062991 A CN 202111062991A CN 113774307 A CN113774307 A CN 113774307A
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China
Prior art keywords
air knife
speed reducer
plate
supporting plate
transverse
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CN202111062991.2A
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Chinese (zh)
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CN113774307B (en
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魏守国
魏一明
魏守军
姚洁
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TANGSHAN JIAGUAN INDUSTRIAL CO LTD
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TANGSHAN JIAGUAN INDUSTRIAL CO LTD
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Publication of CN113774307A publication Critical patent/CN113774307A/en
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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/14—Removing excess of molten coatings; Controlling or regulating the coating thickness
    • C23C2/16—Removing excess of molten coatings; Controlling or regulating the coating thickness using fluids under pressure, e.g. air knives
    • C23C2/18—Removing excess of molten coatings from elongated material
    • C23C2/20—Strips; Plates
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/06—Zinc or cadmium or alloys based thereon
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Air-Flow Control Members (AREA)

Abstract

The invention relates to a self-control air knife elevator structure of equipment for producing hot-galvanized plates and a using method thereof, belonging to the technical field of hot-galvanized plate production in the metallurgical industry. The technical scheme is as follows: the air knife transverse movement adjusting device comprises a base, an air knife longitudinal lifting device, a connecting device, an air knife transverse movement adjusting device, a lifting graduated scale (42) and an air knife transverse movement graduated scale (43), wherein the air knife longitudinal lifting device and the lifting graduated scale (42) are arranged on the base, the air knife longitudinal lifting device is connected with the two air knife transverse movement adjusting devices which are symmetrically arranged left and right through the connecting device, and the air knife transverse movement graduated scale (43) is arranged on the connecting device. The invention has the beneficial effects that: the air knife in use is subjected to full-automatic electric control adjustment, and random automatic adjustment is carried out according to the requirements and the random changes in the production of the zinc plate, so that the air knife is always kept in the optimal state, the operation efficiency is improved, the working environment is improved, and the product quality is improved.

Description

Self-control air knife elevator structure of equipment for producing hot-dip galvanized sheet and use method
Technical Field
The invention relates to a self-control air knife elevator structure of equipment for producing hot-galvanized plates and a using method thereof, belonging to the technical field of hot-galvanized plate production in the metallurgical industry.
Background
When the air knife of the equipment for producing the galvanized sheet is used, each air knife is divided into a left air knife and a right air knife which are oppositely arranged on two sides of the galvanized sheet in operation in parallel, air blowing openings of knife bodies of the air knives are respectively symmetrical, are parallel to two sides of a steel plate in operation at equal intervals and equal angles, and carry out air blowing and zinc scraping on the zinc plate which is conveyed from zinc liquid in a zinc pot and is stained with the zinc liquid, thus completing the zinc plating of the steel plate.
According to the requirements of a production process of a galvanized plate, an air knife of equipment for producing the galvanized plate needs to adjust the height of an air knife air blowing opening and the air blowing distance at any time according to production requirements and production changes of a zinc plate during production of the galvanized plate, so that the air blowing strength of the two air knives is ensured, the air blowing and zinc scraping effects are consistent, the zinc thickness of two surfaces of the zinc plate is consistent, the zinc surface is flat, the zinc spangles are the same, and the quality of the zinc plate is ensured.
At present, two ends of an air knife are mostly placed on two fixed supports made of angle iron round steel and the like through welding, the air knife needs to be lifted, shutdown and production halt are manually adjusted when the distance is adjusted, the air knife is directly placed on a platform above a zinc pot when a zinc plate is produced, the distance between the air knife and zinc liquid is only about one meter, the temperature of the zinc liquid generally reaches over 500 ℃, manual operation is performed at high temperature, the production environment of workers is poor, the workers are difficult to bear, the technical difficulty is high, the working efficiency is low, the production cost is high, particularly, various changes such as air knife height air knife distance blowing-up angles and the like can be caused at any time due to equipment vibration temperature changes and the like in the production of the zinc plate, the manual adjustment cannot be corrected timely, the problems of unequal thickness of two sides of the zinc plate, poor surface smoothness and the like are generated, and the quality of the zinc plate is affected. Generally, the complicated manual adjustment needs at least two hours, and the adjustment is implemented after production shutdown and temperature reduction, so that the production is influenced, and the enterprise benefit is influenced.
Disclosure of Invention
The invention aims to provide a self-control air knife lifter structure of equipment for producing hot galvanized plates and a use method thereof, which carry out full-automatic electric control adjustment on an air knife in use, carry out random automatic adjustment according to the change required and randomly occurred in the production of zinc plates, keep the air knife in the optimal state all the time, improve the operation efficiency, improve the working environment, improve the product quality and solve the problems in the background technology.
The technical scheme of the invention is as follows:
an automatic control type air knife lifter structure of equipment for producing hot galvanized plates comprises a base, an air knife longitudinal lifting device, a connecting device, an air knife transverse movement adjusting device, a lifting graduated scale and an air knife transverse movement graduated scale, wherein the air knife longitudinal lifting device and the lifting graduated scale are arranged on the base;
the air knife longitudinal lifting device comprises a lifting motor, a speed reducer screw rod connecting shaft, a coupling, a lifting support plate and a lifting support plate, wherein the lifting motor, the speed reducer and the speed reducer screw rod are all arranged on the base, the output end of the lifting motor is connected with the input end of the speed reducer, the speed reducer is provided with two output ends, and each output end is connected with the speed reducer screw rod through the coupling and the speed reducer screw rod connecting shaft; the top end of a screw rod of the speed reducer is connected with the lower surface of the lifting supporting plate, and two lifting supporting plate supporting plates are arranged on the upper surface of the lifting supporting plate in parallel;
the connecting device comprises a bottom plate, a front guard plate, a rear guard plate, a right side plate and a left side plate, wherein the front guard plate, the rear guard plate, the left side plate and the right side plate are respectively arranged on the front, the rear, the left and the right sides of the bottom plate and are combined together to form a rectangular groove-shaped structure; the lower surface of the bottom plate is connected with two lifting supporting plate supporting plates, and an air knife supporting plate sliding rail I and an air knife supporting plate sliding rail II are transversely arranged on the upper surface of the bottom plate in parallel;
the air knife transverse movement adjusting device comprises a transverse movement motor, transverse movement speed reducers, transverse movement motor speed reducer supporting plates, transverse movement lead screw fixing and supporting bearings, transverse movement lead screws, transverse movement lead screw nuts, air knife supporting plates, air knife bearing columns and air knife supporting plate sliders, the transverse movement motor speed reducer supporting plates of the two air knife transverse movement adjusting devices are respectively arranged on the outer sides of the left side plate and the right side plate, each transverse movement motor speed reducer supporting plate is provided with a transverse movement motor and a transverse movement speed reducer, and the output end of each transverse movement motor is connected with the input end of the transverse movement speed reducer; the left side plate and the right side plate are respectively provided with round holes corresponding to the transverse speed reducers, the output end of each transverse speed reducer is connected with one end of a transverse screw rod through the corresponding round hole, the other end of the transverse screw rod extends into the rectangular groove-shaped structure, transverse screw rod fixing and supporting bearings are respectively arranged on the transverse screw rods, and the transverse screw rod fixing and supporting bearings of the two air knife transverse movement adjusting devices are respectively arranged close to the inner sides of the left side plate and the right side plate; the transverse screw rod is provided with a transverse screw rod nut, the transverse screw rod nut is provided with an air knife supporting plate, the upper surface of the air knife supporting plate is provided with an air knife bearing column, and an air knife is arranged on the air knife bearing column; air knife supporting plate sliding blocks are respectively arranged at the front edge and the rear edge of the lower surface of the air knife supporting plate, two air knife supporting plate sliding blocks of each air knife supporting plate are respectively matched with the first air knife supporting plate sliding rail and the second air knife supporting plate sliding rail, and the two air knife supporting plate sliding blocks of each air knife supporting plate are respectively arranged on the first air knife supporting plate sliding rail and the second air knife supporting plate sliding rail in a sliding manner; a transverse moving pointer is arranged on the front side surface of the air knife supporting plate;
the lifting graduated scale is arranged between the base and the lifting supporting plate, the front side surface of the front protective plate is respectively provided with an air knife transverse graduated scale corresponding to the two air knife supporting plates, and a transverse pointer points to the air knife transverse graduated scale;
the air knives of the two air knife bearing and placing devices are respectively a front air knife and a rear air knife, the front air knife and the rear air knife are respectively arranged on two sides of a hot-galvanized plate which runs up and down, the distances and the heights between the air outlets of the front air knife and the rear air knife and the hot-galvanized plate are completely consistent, and the hot-galvanized plate is blown and scraped on the surface of the hot-galvanized plate away from a zinc pot.
The base comprises a base shell, a base reinforcing plate, a positioning guide post hole, a positioning guide post sleeve, a positioning guide post flange and a screw rod hole of a speed reducer screw, wherein the base shell is a rectangular cavity shell, two convex posts are symmetrically arranged on the upper surface of the base shell, and the front edge position and the rear edge position of the lower surface of the base shell are respectively provided with the base reinforcing plate; positioning guide post holes are respectively arranged at the positions of the two convex posts and penetrate through the convex posts and the base shell; a positioning guide post sleeve is arranged in the positioning guide post hole, the upper end and the lower end of the positioning guide post sleeve respectively extend out of the convex post and the base shell, a positioning guide post is arranged in the positioning guide post sleeve, and positioning guide post flanges are respectively arranged at the upper end and the lower end of the positioning guide post sleeve to block the positioning guide post; an annular oil filling line is arranged on the inner wall of the positioning guide post sleeve, and the positioning guide post is stable in oil lubrication when moving up and down; the upper surfaces of the base shells on the outer sides of the two convex columns are symmetrically provided with a first speed reducer screw rod hole, the lower surfaces of the base shells corresponding to the first speed reducer screw rod hole are respectively provided with a second speed reducer screw rod hole with the same diameter, a speed reducer screw rod is arranged on the base shell through the first speed reducer screw rod hole and the second speed reducer screw rod hole, and the speed reducer screw rod can run without resistance when running up and down, so that the running effect of the speed reducer screw rod is improved; the positioning guide pillar enables the screw rod of the speed reducer to ascend and descend parallelly and stably, and the positioning guide pillar provides stability when the screw rod of the speed reducer runs up and down, so that the stability and reliability in running of the screw rod of the speed reducer are guaranteed; the longitudinal air knife lifting device comprises two positioning guide columns and two speed reducer screw rods, the double screw rods and the double guide columns are arranged on the lower surface of a lifting supporting plate, and the lifting supporting plate is driven by the same lifting motor and the speed reducer to lift synchronously, so that synchronous lifting operation effects are ensured, the performance is stable, and the effects are consistent.
The lifting motor and the speed reducer are arranged on the base shell between the two convex columns, the two convex columns are respectively and transversely provided with through holes, and two output ends of the speed reducer are respectively connected with a screw rod of the speed reducer through the through holes, the coupling and a screw rod connecting shaft of the speed reducer. The coupling and the screw rod connecting shaft of the speed reducer are arranged in the through hole of the convex column.
The input end of the transverse moving speed reducer is connected with a hand wheel shaft, a hand wheel shaft fixing and supporting bearing is arranged on the hand wheel shaft, and hand wheel shaft fixing and supporting bearings of the two air knife transverse moving adjusting devices are respectively connected with the left side plate and the right side plate; the end part of the hand wheel shaft is provided with a transverse moving hand wheel. The fine adjustment is corrected and corrected through the transverse moving hand wheel, so that the adjustment is more stable and consistent.
The transverse screw rod fixing and supporting bearing is arranged on the bottom plate through a bearing seat, and the bearing seat is in a long column shape.
The rear side surface of the air knife supporting plate is provided with a limit switch collision block, the inner side of the rear protective plate is provided with a limit switch I and a limit switch II, and the limit switch I and the limit switch II are matched with the limit switch collision block to limit the air knife supporting plate.
The air knife supporting plate is located above the front protection plate, and the transverse moving dimension of the air knife is convenient to observe.
The lifting motor is characterized by also comprising an electric control device, wherein the electric control device comprises an electric appliance cabinet, an electric appliance cabinet support column, an electric control operating panel support column and an electric appliance line drag chain, the electric appliance cabinet and the electric control operating panel are respectively arranged at two sides of the lifting motor, the electric appliance cabinet and the electric control operating panel are respectively connected with the upper ends of the electric appliance cabinet support column and the electric control operating panel support column, and the lower ends of the electric appliance cabinet support column and the electric control operating panel support column are both arranged on the base; the electric appliance circuit tow chain is arranged on the outer side of the electric appliance cabinet, and the main circuit is concentrated in the electric appliance circuit tow chain for guaranteeing the neatness and safety of the electric circuit.
The base is a basic part of the invention, and the invention is placed on a cement seat on the side surface of the galvanizing pot through the base reinforcing plate, thereby ensuring that the invention has stable and reliable operation and stable and firm foundation. The invention is provided with an electric control operation panel, one key operation is carried out, the air knives are correspondingly adjusted, the adjustment is fast and convenient, the full-automatic adjustment of the height distance of the air knives can be realized, the process technical requirements of the height of the air knives, the distance between an air blowing opening of the air knives and a zinc plate and the like are always in the best state, the adjustment dimension can be mastered in time, the lifting and the transverse movement are timely and accurate, the operation rate of equipment is improved, the quality is provided, and the benefit is increased.
The number of the transverse moving motor, the transverse moving speed reducer, the transverse moving motor speed reducer supporting plate, the transverse moving lead screw fixing and supporting bearing, the transverse moving lead screw nut, the air knife supporting plate and the air knife bearing and placing column of each air knife transverse moving adjusting device is one, and the two air knife transverse moving adjusting devices are symmetrically arranged to enable the two air knife transverse moving adjusting devices to be mutually coordinated and correspondingly matched.
When the hot galvanizing zinc pot is used, the front air knife and the rear air knife are respectively arranged on the two air knife bearing columns, the front air knife and the rear air knife are respectively arranged on the front side and the rear side of the hot galvanizing plate, the distances and the heights between the air outlets of the front air knife and the rear air knife and the hot galvanizing plate are completely consistent, and the hot galvanizing plate is blown and scraped on the surface of the hot galvanizing plate away from the zinc pot.
The length of the front air knife and the rear air knife is about 2.2 meters, the length of the air blowing openings is about 1.8 meters, and the air blowing openings of the front air knife and the rear air knife are oppositely arranged corresponding to the two sides of the hot galvanized plate when the hot galvanized plate is used.
The innovation points of the invention are as follows: the steel plate is taken out of the zinc pot to form a hot-dip galvanized plate, and when the steel plate passes through a space between the air blowing ports of the front air knife and the rear air knife, the zinc is blown and scraped by depending on the blowing pressure and the blowing strength, so that the thickness of zinc on two sides of the hot-dip galvanized plate is consistent, the zinc surface is smooth, and the distances and the heights between the air blowing ports of the front air knife and the rear air knife and the zinc plate are required to be consistent; the air knife supporting plates of the front air knife and the rear air knife are arranged on an air knife supporting plate slide rail I and an air knife supporting plate slide rail II which are parallel to each other, and are transversely moved and adjusted through an air knife transverse moving adjusting device with two symmetrically matched ends, and meanwhile, fine adjustment is carried out by manual adjustment, so that the distances between air blowing openings of the front air knife and the rear air knife and the hot-galvanized plate are completely consistent, and the air blowing effects of the front surface and the rear surface of the hot-galvanized plate are completely consistent. The front air knife and the rear air knife are manufactured in the same specification, the same performance, the same process, the same technical standard, the same performance and the same operation mode, and the height, the distance and the blowing and zinc scraping effects of the front air knife and the rear air knife are ensured to be stable and consistent.
The coupling is a diaphragm coupling.
The use method of the automatic control type air knife lifter for the hot galvanized plate production equipment adopts the lifter structure and comprises the following steps:
the base is fixed on the basis of the side surface of a zinc pot, air blowing openings of a front air knife and a rear air knife are correspondingly arranged on two surfaces of a hot galvanized plate which moves upwards away from the zinc pot and are arranged oppositely, air knife supporting plates of the front air knife and the rear air knife slide on an air knife supporting plate slide rail I and an air knife supporting plate slide rail II which are parallel to each other together, the distance between the air blowing openings and the hot galvanized plate is adjusted through respective air knife transverse movement adjusting devices, and the distances between the air blowing openings of the front air knife and the rear air knife and the hot galvanized plate are adjusted to be completely consistent; the longitudinal heights of the front air knife and the rear air knife are adjusted by the same air knife longitudinal lifting device, so that the longitudinal heights of the air blowing openings of the front air knife and the rear air knife are completely consistent with those of the hot galvanized plate; the front air knife and the rear air knife blow and scrape the surface of the hot galvanized plate away from the zinc pot; the front air knife and the rear air knife are manufactured in the same specification, the same performance, the same process, the same technical standard, the same performance and the same operation mode, and the height, the distance and the blowing and zinc scraping effects of the front air knife and the rear air knife are ensured to be stable and consistent.
The distance between the air blowing openings of the front air knife and the rear air knife and the hot-galvanized plate is adjusted through respective air knife transverse movement adjusting devices, coarse adjustment is completed through the air knife transverse movement adjusting devices, the air knife transversely moves the graduated scale through observation, and fine adjustment is performed through rotating a hand wheel shaft at the input end of the transversely moving speed reducer, so that the distances between the air blowing openings of the front air knife and the rear air knife and the hot-galvanized plate are completely consistent; and adjusting the longitudinal heights of the front air knife and the rear air knife, and determining the final longitudinal heights of the front air knife and the rear air knife by observing the lifting scale.
The lifting operation of the longitudinal lifting device of the air knife for adjusting the longitudinal height: starting a lifting motor, rotating a speed reducer, driving a screw rod of the speed reducer to rotate forward and backward and move up and down through a coupling and a screw rod connecting shaft of the speed reducer, driving a bottom plate to lift through a lifting supporting plate, driving an air knife bearing column of an air knife transverse movement adjusting device to lift, and finally realizing the lifting of an air knife;
transverse movement operation of the air knife transverse movement adjusting device: starting a transverse moving motor, rotating a transverse moving speed reducer to drive a transverse moving lead screw to transversely move, and moving a transverse moving lead screw nut along with the transverse moving lead screw, so that air knife supporting plates of two air knife transverse moving adjusting devices respectively slide on an air knife supporting plate slide rail I and an air knife supporting plate slide rail II through respective two air knife supporting plate slide blocks, and an air knife bearing column drives an air knife to transversely move; when the air knife supporting plate runs out of position, the limit switch collision block impacts the limit switch I or the limit switch II, so that the moving position of the air knife supporting plate is limited.
The invention has the beneficial effects that:
1. the invention implements one-machine double-screw double-guide-post linkage up-and-down automatic control operation on the lifting of the air knife, realizes that two air knives synchronously and stably lift one to the same scale, and has the precision of more than 98 percent;
2. the two air knife transverse moving systems are uniformly arranged on a bottom plate for linkage control and fully-automatic operation, the corresponding distance between the two air knives is self-adjusted and controllable, and the controllable error is less than 2%;
3. the two air knives of the invention implement one-key double control of the electric control operation panel, thus ensuring the linkage control of the lifting and the transverse movement of the air knives, coordinating the adjustment action, having consistent effect and improving the operation rate of the equipment by more than 10 percent;
4. the air knife height lifting and the air blowing distance are required to be adjusted on line, the labor intensity of workers is reduced, the equipment efficiency is improved by more than 15%, and the total qualified rate of the product quality is improved by more than 6%.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic side view of the present invention;
FIG. 4 is a schematic view of a base structure of the present invention;
FIG. 5 is a schematic top view of the base of the present invention;
FIG. 6 is a schematic view of a portion of a longitudinal lifting device for an air knife in accordance with the present invention;
FIG. 7 is a schematic top view of a portion of a longitudinal lifting device for an air knife in accordance with the present invention;
FIG. 8 is a partial schematic view of a screw rod of the reducer of the present invention;
FIG. 9 is a schematic partial side view of a screw rod of the reducer of the present invention;
FIG. 10 is a perspective view of the present invention;
in the figure: a base shell 1, a base reinforcing plate 2, a positioning guide post hole 3, a positioning guide post sleeve 4, a positioning guide post flange 5, a first speed reducer screw rod hole 6, a lifting motor 7, a speed reducer 8, a positioning guide post 9, a speed reducer screw rod 10, a speed reducer screw rod connecting shaft 11, a shaft coupling 12, a lifting support plate 13, a lifting support plate 14, a bottom plate 15, a front protection plate 16, a rear protection plate 17, a right side plate 18, a left side plate 19, a transverse moving motor 20, a transverse moving speed reducer 21, a transverse moving hand wheel 22, a hand wheel shaft 23, a hand wheel shaft fixing support bearing 24, a transverse moving motor speed reducer support plate 25, a first air knife support plate slide rail 26, a second air knife support plate slide rail 27, a transverse moving screw rod fixing support bearing 28, a screw rod transverse moving 29, a transverse moving screw rod nut 30, an air knife support plate 31, an air knife bearing column 32, an air knife support plate slide block 33, a limit switch collision block 34, a limit switch first 35, a limit switch second limit switch 36, An electric appliance cabinet 37, an electric appliance cabinet support column 38, an electric control operation panel 39, an electric control operation panel support column 40, an electric appliance line drag chain 41, a lifting scale 42 and an air knife transverse moving scale 43.
Detailed Description
The present invention will be further described by way of examples with reference to the accompanying drawings.
An automatic control type air knife lifter structure of equipment for producing hot galvanized plates comprises a base, an air knife longitudinal lifting device, a connecting device, an air knife transverse movement adjusting device, a lifting graduated scale 42 and an air knife transverse movement graduated scale 43, wherein the air knife longitudinal lifting device and the lifting graduated scale 42 are arranged on the base, the air knife longitudinal lifting device is connected with the two air knife transverse movement adjusting devices which are symmetrically arranged left and right through the connecting device, and the air knife transverse movement graduated scale 43 is arranged on the connecting device;
the air knife longitudinal lifting device comprises a lifting motor 7, a speed reducer 8, a speed reducer screw rod 10, a speed reducer screw rod connecting shaft 11, a coupler 12, a lifting supporting plate 13 and a lifting supporting plate 14, wherein the lifting motor 7, the speed reducer 8 and the speed reducer screw rod 10 are all arranged on a base, the output end of the lifting motor 7 is connected with the input end of the speed reducer 8, the speed reducer 8 is provided with two output ends, and each output end is connected with the speed reducer screw rod 10 through the coupler 12 and the speed reducer screw rod connecting shaft 11; the top end of a screw rod lead screw 10 of the speed reducer is connected with the lower surface of a lifting supporting plate 13, and two lifting supporting plate supporting plates 14 are arranged on the upper surface of the lifting supporting plate 13 in parallel;
the connecting device comprises a bottom plate 15, a front guard plate 16, a rear guard plate 17, a right side plate 18 and a left side plate 19, wherein the front guard plate 16, the rear guard plate 17, the left side plate 19 and the right side plate 18 are respectively arranged on the front, the rear, the left and the right of the bottom plate 15 and are combined together to form a rectangular groove-shaped structure; the lower surface of the bottom plate 15 is connected with two lifting supporting plate supporting plates 14, and an air knife supporting plate sliding rail I26 and an air knife supporting plate sliding rail II 27 are transversely arranged on the upper surface of the bottom plate in parallel;
the air knife transverse movement adjusting device comprises a transverse movement motor 20, a transverse movement speed reducer 21, a transverse movement motor speed reducer supporting plate 25, a transverse movement lead screw fixing and supporting bearing 28, a transverse movement lead screw 29, a transverse movement lead screw nut 30, an air knife supporting plate 31, an air knife bearing and placing column 32 and an air knife supporting plate sliding block 33, the transverse movement motor speed reducer supporting plates 25 of the two air knife transverse movement adjusting devices are respectively arranged on the outer sides of the left side plate 19 and the right side plate 18, a transverse movement motor 20 and a transverse movement speed reducer 21 are respectively arranged on each transverse movement motor speed reducer supporting plate 25, and the output end of the transverse movement motor 20 is connected with the input end of the transverse movement speed reducer 21; round holes are respectively arranged on the left side plate 19 and the right side plate 18 corresponding to the transverse speed reducers 21, the output end of each transverse speed reducer 21 is connected with one end of a transverse screw 29 through the corresponding round hole, the other end of the transverse screw 29 extends into a rectangular groove-shaped structure, transverse screw fixed supporting bearings 28 are respectively arranged on the transverse screws 29, and the transverse screw fixed supporting bearings 28 of the two air knife transverse movement adjusting devices are respectively arranged close to the inner sides of the left side plate 19 and the right side plate 18; a transverse screw nut 30 is arranged on the transverse screw 29, an air knife supporting plate 31 is arranged on the transverse screw nut 30, an air knife bearing column 32 is arranged on the upper surface of the air knife supporting plate 31, and an air knife is arranged on the air knife bearing column 32; air knife supporting plate slide blocks 33 are respectively arranged at the front edge and the rear edge of the lower surface of each air knife supporting plate 31, two air knife supporting plate slide blocks 33 of each air knife supporting plate 31 are respectively matched with the first air knife supporting plate slide rail 26 and the second air knife supporting plate slide rail 27, and the two air knife supporting plate slide blocks 33 of each air knife supporting plate 31 are respectively arranged on the first air knife supporting plate slide rail 26 and the second air knife supporting plate slide rail 27 in a sliding manner; the front side surface of the air knife supporting plate 31 is provided with a transverse moving pointer;
the lifting graduated scale 42 is arranged between the base and the lifting supporting plate 13, the front side surface of the front protection plate 16 is respectively provided with an air knife transverse graduated scale 43 corresponding to the two air knife supporting plates 31, and a transverse pointer points to the air knife transverse graduated scale 43;
the air knives of the devices on the two air knife bearing columns 32 are respectively a front air knife and a rear air knife, the front air knife and the rear air knife are respectively arranged on two sides of a hot-galvanized plate which runs up and down, the distances and the heights between the air outlets of the front air knife and the rear air knife and the hot-galvanized plate are completely consistent, and the hot-galvanized plate is blown and scraped on the surface of the hot-galvanized plate away from the zinc pot.
The base comprises a base shell 1, a base reinforcing plate 2, a positioning guide post hole 3, a positioning guide post sleeve 4, a positioning guide post flange 5 and a screw rod hole 6 of a speed reducer screw, wherein the base shell 1 is a rectangular cavity shell, two convex posts are symmetrically arranged on the upper surface of the base shell, and the base reinforcing plate 2 is respectively arranged at the front edge position and the rear edge position of the lower surface of the base shell; positioning guide post holes 3 are respectively arranged at the positions of the two convex posts, and the positioning guide post holes 3 penetrate through the convex posts and the base shell 1; a positioning guide post sleeve 4 is arranged in the positioning guide post hole 3, the upper end and the lower end of the positioning guide post sleeve 4 respectively extend out of the convex post and the base shell, a positioning guide post 9 is arranged in the positioning guide post sleeve 4, and positioning guide post flanges 5 are respectively arranged at the upper end and the lower end of the positioning guide post sleeve 4 to block the positioning guide post 9; an annular oil filling line is arranged on the inner wall of the positioning guide post sleeve 4, and the positioning guide post 9 is lubricated and stable when moving up and down; the upper surfaces of the base shells 1 on the outer sides of the two convex columns are symmetrically provided with speed reducer screw rod holes I6, the lower surfaces of the base shells 1 corresponding to the speed reducer screw rod holes I are respectively provided with speed reducer screw rod holes II with equal diameters, the speed reducer screw rods 10 are arranged on the base shells 1 through the speed reducer screw rod holes I6 and the speed reducer screw rod holes II, and the speed reducer screw rods 10 can run without resistance when running up and down, so that the running effect of the speed reducer screw rods 10 is improved; the positioning guide pillar 9 enables the screw rod 10 of the speed reducer to ascend and descend parallelly and stably, and the positioning guide pillar 9 provides stability when the screw rod 10 of the speed reducer runs up and down, so that the stability and reliability of the running of the screw rod 10 are guaranteed; the longitudinal air knife lifting device comprises two positioning guide columns 9 and two speed reducer screw rods 10, the double screw rods and the double guide columns are arranged on the lower surface of a lifting supporting plate 13, and the lifting supporting plate is driven by a lifting motor 7 and a speed reducer 8 to lift synchronously, so that synchronous lifting operation effect, stable performance and consistent effect are ensured.
The lifting motor 7 and the speed reducer 8 are arranged on the base shell between the two convex columns, the two convex columns are respectively and transversely provided with through holes, and two output ends of the speed reducer 8 are respectively connected with a screw rod 10 of the speed reducer through the through holes, a coupling 12 and a screw rod connecting shaft 11 of the speed reducer. The coupling 12 and the screw rod connecting shaft 11 of the speed reducer are arranged in the through hole of the convex column.
The input end of the transverse moving speed reducer 21 is connected with a hand wheel shaft 23, the hand wheel shaft 23 is provided with a hand wheel shaft fixing and supporting bearing 24, and the hand wheel shaft fixing and supporting bearings 24 of the two air knife transverse moving adjusting devices are respectively connected with the left side plate 19 and the right side plate 18; the end of the hand wheel shaft 23 is provided with a transverse hand wheel 22. The fine adjustment is corrected and corrected through the transverse moving hand wheel, so that the adjustment is more stable and consistent.
The traversing lead screw fixed support bearing 28 is arranged on the bottom plate 15 through a bearing seat, and the bearing seat is in a long column shape.
The rear side surface of the air knife supporting plate 31 is provided with a limit switch collision block 34, the inner side of the rear guard plate 17 is provided with a first limit switch 35 and a second limit switch 36, and the first limit switch 35 and the second limit switch 36 are matched with the limit switch collision block 34 to limit the air knife supporting plate 31.
The air knife supporting plate 31 is positioned above the front protection plate 16, so that the transverse moving dimension of the air knife can be observed conveniently.
The lifting motor is characterized by further comprising an electric control device, the electric control device comprises an electric appliance cabinet 37, an electric appliance cabinet support column 38, an electric control operation panel 39, an electric control operation panel support column 40 and an electric appliance line drag chain 41, the electric appliance cabinet 37 and the electric control operation panel 39 are respectively arranged on two sides of the lifting motor, the electric appliance cabinet 37 and the electric control operation panel 39 are respectively connected with the upper ends of the electric appliance cabinet support column 38 and the electric control operation panel support column 40, and the lower ends of the electric appliance cabinet support column and the electric control operation panel support column are both arranged on the base; the electric appliance circuit tow chain 41 is arranged on the outer side of the electric appliance cabinet, and the main circuit is concentrated on the electric appliance circuit tow chain for guaranteeing the neat and safe electric circuit. The start and stop of the lifting motor 7 and the transverse moving motor 20 are controlled by the electric control device, the air knife is adjusted to the required height by observing the scale change of the lifting graduated scale 42, and the air knife is transversely adjusted to the proper position by observing the scale of the transverse moving pointer pointing to the air knife transverse moving graduated scale 43.
The coupling 12 is a diaphragm coupling.
The use method of the automatic control type air knife lifter for the hot galvanized plate production equipment adopts the lifter structure and comprises the following steps:
the base is fixed on the basis of the side surface of a zinc pot, air blowing openings of a front air knife and a rear air knife are correspondingly arranged on two surfaces of a hot galvanized plate which moves upwards away from the zinc pot and are opposite to each other, air knife supporting plates 31 of the front air knife and the rear air knife slide on an air knife supporting plate slide rail I26 and an air knife supporting plate slide rail II 27 which are parallel to each other together, the distance between the air blowing openings and the hot galvanized plate is adjusted through respective air knife transverse movement adjusting devices, and the distance between the air blowing openings of the front air knife and the rear air knife and the hot galvanized plate is adjusted to be completely consistent; the longitudinal heights of the front air knife and the rear air knife are adjusted by the same air knife longitudinal lifting device, so that the longitudinal heights of the air blowing openings of the front air knife and the rear air knife are completely consistent with those of the hot galvanized plate; the front air knife and the rear air knife blow and scrape the surface of the hot galvanized plate away from the zinc pot; the front air knife and the rear air knife are manufactured in the same specification, the same performance, the same process, the same technical standard, the same performance and the same operation mode, and the height, the distance and the blowing and zinc scraping effects of the front air knife and the rear air knife are ensured to be stable and consistent.
The distance between the air blowing openings of the front air knife and the rear air knife and the hot galvanized plate is adjusted through respective air knife transverse movement adjusting devices, coarse adjustment is completed through the air knife transverse movement adjusting devices, fine adjustment is performed through observation of the air knife transverse moving graduated scale 43 and rotation of the hand wheel shaft 23 at the input end of the transverse moving speed reducer 21, and the distance between the air blowing openings of the front air knife and the rear air knife and the hot galvanized plate is completely consistent; the longitudinal height of the front and rear air knives is adjusted and the final longitudinal height of the front and rear air knives is determined by observing the elevation scale 42.
The lifting operation of the longitudinal lifting device of the air knife for adjusting the longitudinal height: starting the lifting motor 7, rotating the speed reducer 8, driving the speed reducer screw rod 10 to rotate forward and backward and move up and down through the coupling 12 and the speed reducer screw rod connecting shaft 11, lifting the lifting supporting plate 13 along with the lifting supporting plate, driving the bottom plate 15 to lift through the lifting supporting plate 14, driving the air knife bearing column 32 of the air knife transverse movement adjusting device to lift, and finally realizing air knife lifting;
transverse movement operation of the air knife transverse movement adjusting device: starting the traverse motor 20, rotating the traverse reducer 21 to drive the traverse screw 29 to move transversely, and moving the traverse screw nut 30 along with the traverse screw, so that the air knife supporting plates 31 of the two air knife transverse movement adjusting devices respectively slide on the air knife supporting plate slide rails I26 and the air knife supporting plate slide rails II 27 through the respective two air knife supporting plate slide blocks 33, and the air knife bearing columns 32 are driven to move transversely; when the air knife supporting plate 31 runs out of position, the limit switch collision block 34 collides with the first limit switch 35 or the second limit switch 36, so that the moving position of the air knife supporting plate is limited.
In the embodiment, the base is a basic part of the invention, and the invention ensures that the invention runs stably and reliably and has stable and firm foundation by placing the base reinforcing plates 2 on the cement seats of which the square groove shapes on the two sides of the galvanized pot are matched with the positioning guide pillars in height. The base shell 1 is a rectangular cavity shell, the upper surface of the base shell is symmetrically provided with two convex columns, the lower surface of the base shell is planar, and the front edge and the rear edge of the base shell are respectively provided with a strip-shaped base reinforcing plate 2; positioning guide post holes 3 are respectively arranged at the positions of the two convex posts, and the positioning guide post holes 3 penetrate through the convex posts and the base shell 1, so that the contact running length of the positioning guide posts can be increased; a positioning guide post sleeve 4 is arranged in the positioning guide post hole 3, the upper end and the lower end of the positioning guide post sleeve 4 respectively extend out of the convex post and the base shell, a positioning guide post 9 is arranged in the positioning guide post sleeve 4, and positioning guide post flanges 5 are respectively arranged at the upper end and the lower end of the positioning guide post sleeve 4 to block the positioning guide post 9; an annular oil filling line is arranged on the inner wall of the positioning guide post sleeve 4, and the positioning guide post 9 is lubricated and stable when moving up and down; the upper surface of the base shell body 1 outside the two protruding columns is symmetrically provided with a first speed reducer screw rod hole 6, the lower surface of the base shell body 1 corresponding to the first speed reducer screw rod hole is respectively provided with a second speed reducer screw rod hole with the same diameter, the speed reducer screw rod 10 is arranged on the base shell body 1 through the first speed reducer screw rod hole 6 and the second speed reducer screw rod hole, the speed reducer screw rod 10 can run without resistance when running up and down, and the running effect of the speed reducer screw rod 10 is improved.
The lifting motor 7, the speed reducer 8 and the speed reducer screw rod 10 of the longitudinal air knife lifting device are all arranged on the base, the output end of the lifting motor 7 is connected with the input end of the speed reducer 8, the speed reducer 8 is provided with two output ends, and each output end is connected with the speed reducer screw rod 10 through a coupling 12 and a speed reducer screw rod connecting shaft 11; the top ends of a screw rod lead screw 10 of the speed reducer and a positioning guide post 9 are connected with the lower surface of a lifting supporting plate 13, two lifting supporting plate supporting plates 14 are vertically and symmetrically arranged on the upper surface of the rectangular plate-shaped lifting supporting plate 13 in parallel, and the lifting supporting plate supporting plates are rectangular strip-shaped steel plates; the lower surface of the bottom plate 15 is placed on the two lifting support plate support plates 14 in a tray manner; the positioning guide pillar 9 enables the screw rod 10 of the speed reducer to ascend and descend parallelly and stably, and the positioning guide pillar 9 provides stability when the screw rod 10 of the speed reducer runs up and down, so that the stability and reliability of the running of the screw rod 10 are guaranteed; the longitudinal air knife lifting device comprises two positioning guide columns 9 and two speed reducer screw rods 10, the double screw rods and the double guide columns are arranged on the lower surface of a lifting supporting plate 13, and the lifting supporting plate is driven by a lifting motor 7 and a speed reducer 8 to lift synchronously, so that synchronous lifting operation effect, stable performance and consistent effect are ensured.
The bottom plate 15 is respectively provided with a front guard plate 16, a rear guard plate 17, a left side plate 19 and a right side plate 18 at the front, the rear, the left and the right, and the front guard plate, the rear guard plate, the left side plate and the right side plate are combined together to form a rectangular groove-shaped structure; two ends of the bottom plate outside the left side plate 19 and the right side plate 18 are respectively connected with a transverse moving motor reducer supporting plate 25 in a plane mode, a transverse moving motor 20 and a transverse moving reducer 21 are arranged on the transverse moving motor reducer supporting plate 25, and the output end of the transverse moving motor 20 is connected with the input end of the transverse moving reducer 21; the input end of the transverse moving speed reducer 21 is connected with a hand wheel shaft 23, the hand wheel shaft 23 is provided with a hand wheel shaft fixing and supporting bearing 24, and the hand wheel shaft fixing and supporting bearings 24 of the two air knife transverse moving adjusting devices are respectively connected with the left side plate 19 and the right side plate 18; the end of the hand wheel shaft 23 is provided with a transverse hand wheel 22. The fine adjustment is corrected and corrected through the transverse moving hand wheel, so that the adjustment is more stable and consistent. Round holes are respectively arranged on the left side plate 19 and the right side plate 18 corresponding to the transverse speed reducers 21, the output end of each transverse speed reducer 21 is connected with one end of a transverse screw 29 through the corresponding round hole, the other end of the transverse screw 29 extends into a rectangular groove-shaped structure, and transverse screw fixed support bearings 28 of two air knife transverse movement adjusting devices are respectively sleeved on the two transverse screws 29 close to the inner sides of the left side plate 19 and the right side plate 18; a transverse screw nut 30 is arranged in the middle of the transverse screw 29, the transverse screw nut 30 is arranged in the middle of the lower surface of the air knife supporting plate 31, the air knife supporting plate 31 is rectangular and thick plate-shaped, an air knife bearing and placing column 32 is arranged at the corresponding position on the upper surface of the air knife supporting plate 31, and an air knife is arranged on the air knife bearing and placing column 32; air knife supporting plate slide blocks 33 are respectively arranged at the front edge and the rear edge of the lower surface of the air knife supporting plate 31, an air knife supporting plate slide rail I26 and an air knife supporting plate slide rail II 27 are transversely arranged on the inner sides of the front edge and the rear edge of the upper surface of the bottom plate in parallel, the air knife supporting plate slide rail I26 and the air knife supporting plate slide rail II 27 are respectively matched with the two air knife supporting plate slide blocks 33 of each air knife supporting plate 31, and the two air knife supporting plate slide blocks 33 of each air knife supporting plate 31 are respectively arranged on the air knife supporting plate slide rail I26 and the air knife supporting plate slide rail II 27 in a sliding manner; the front side surface of the air knife supporting plate 31 is provided with a transverse moving pointer; the rear side surface of the air knife supporting plate 31 is provided with a strip-shaped limit switch collision block 34, the inner side of the rear guard plate 17 is provided with a first limit switch 35 and a second limit switch 36, and the first limit switch 35 and the second limit switch 36 are matched with the limit switch collision block 34 to limit the air knife supporting plate 31. The number of the transverse moving motor 20, the transverse moving speed reducer 21, the transverse moving hand wheel 22, the hand wheel shaft 23, the hand wheel shaft fixing support bearing 24, the transverse moving motor speed reducer supporting plate 25, the transverse moving lead screw fixing support bearing 28, the transverse moving lead screw 29, the transverse moving lead screw nut 30, the air knife supporting plate 31, the air knife bearing column 32, the limit switch collision block 34, the limit switch I35 and the limit switch II 36 of each air knife transverse moving adjusting device is one, and the two air knife transverse moving adjusting devices are symmetrically arranged to enable the two air knives to be coordinated and matched with each other in a transverse moving mode.
The invention is provided with an electric control operation panel, the air knives are correspondingly adjusted by one key operation, the adjustment is rapid and convenient, the electric appliance cabinet is arranged on the left side of the front side of the longitudinal lifting device of the air knives, and the supporting column 38 of the electric appliance cabinet is fixedly arranged on the outer edge of the lower surface of the base shell through bolts; the electric control operation disc 39 is arranged on the right side of the front face of the air knife longitudinal lifting device, the lower ends of the electric control operation disc support columns 40 are fixedly arranged on the right side surface of the front face of the base shell through bolts, and the electric control operation disc support columns 40 are L-shaped, so that the electric control operation disc 39 extends out of the outer side of the base shell, the structure is prevented from being crowded, and the operation is more convenient. In order to ensure the neat and safe electric appliance lines, the main lines are concentrated on an electric appliance line drag chain, and the electric appliance line drag chain is arranged on the outer side of the left end face of the longitudinal air knife lifting device. The lifting graduated scale 42 is strip-shaped and is longitudinally arranged between the outer edge of the upper surface of the front face of the base shell and the lower edge of the lower surface of the lifting supporting plate. Air knife transverse moving graduated scales 43 are respectively arranged at the left end and the right end of the front surface of the bottom plate, and a transverse moving pointer is arranged on the front surface of the air knife supporting plate to correspondingly mark the transverse moving scale of the air knife. When a small error occurs in the transverse electric control operation, the transverse hand wheel is used for supplement searching, so that the adjustment is more stable and consistent.
In the using process, the electric control device is started, the lifting motor 7 is started, the speed reducer 8 rotates, the speed reducer screw rod 10 is driven to rotate in a positive and negative mode and move up and down through the coupling 12 and the speed reducer screw rod connecting shaft 11, the top end of the speed reducer screw rod 10 is connected with the lower surface of the lifting support plate, the lifting support plate 13 moves up and down along with the coupling, the lifting support plate 14 drives the bottom plate 15 to move up and down, the bottom plate is provided with a first air knife support plate slide rail 26 and a second air knife support plate slide rail 27, each air knife support plate is respectively arranged on the first air knife support plate slide rail 26 and the second air knife support plate slide rail 27 in a sliding mode through two air knife support plate slide blocks 33 arranged in front of and behind the lower surface, an air knife bearing column is arranged on the air knife support plate, and accordingly the air knife bearing column 32 is driven to move up and down, and an air knife is arranged on the air knife bearing column 32, and finally air knife lifting is realized; starting an electric control device, starting a transverse moving motor 20, rotating a transverse moving speed reducer 21 to drive a transverse moving lead screw 29 to transversely move, moving a transverse moving lead screw nut 30 along with the transverse moving lead screw nut, wherein the transverse moving lead screw nut 30 is arranged on the lower surface of an air knife supporting plate 31, so that air knife supporting plates 31 of two air knife transverse moving adjusting devices slide on an air knife supporting plate slide rail I26 and an air knife supporting plate slide rail II 27 through an air knife supporting plate slide block 33, and air knife bearing columns are arranged on the air knife supporting plates, so that the air knife bearing columns 32 drive air knives to transversely move; when the air knife supporting plate 31 runs out of position, the limit switch collision block 34 collides with the first limit switch 35 or the second limit switch 36, so that the moving position of the air knife supporting plate is limited.
The air knife longitudinal lifting device performs electric control lifting adjustment on the air knife according to needs, the air knife transverse movement adjusting device adjusts the air knife implementation distance, the electric control device aims to achieve full-automatic adjustment of the air knife height distance, enable process technical requirements such as the air knife height, the air knife blowing port and the zinc plate distance to be in the best state all the time, can timely grasp adjustment dimensions, guarantee timely and accurate lifting and transverse movement, improve equipment operation rate, provide quality and increase benefits.
When the hot-dip galvanizing device is used, the front air knife and the rear air knife are respectively arranged on the two air knife bearing columns 32, the front air knife and the rear air knife are respectively arranged on the front side and the rear side of the hot-dip galvanizing plate, the distances and the heights between the air outlets of the front air knife and the rear air knife and the hot-dip galvanizing plate are completely consistent, and the hot-dip galvanizing plate is blown and scraped on the surface of the hot-dip galvanizing plate away from a zinc pot.
When the front air knife and the rear air knife are used, the air blowing openings of the front air knife and the rear air knife are oppositely arranged corresponding to the two sides of the hot galvanized plate.
The innovation points of the invention are as follows: the steel plate is taken out of the zinc pot to form a hot-dip galvanized plate, and when the steel plate passes through a space between the air blowing ports of the front air knife and the rear air knife, the zinc is blown and scraped by depending on the blowing pressure and the blowing strength, so that the thickness of zinc on two sides of the hot-dip galvanized plate is consistent, the zinc surface is smooth, and the distances and the heights between the air blowing ports of the front air knife and the rear air knife and the zinc plate are required to be consistent; the air knife supporting plates 31 of the front air knife and the rear air knife are arranged on a knife supporting plate slide rail I26 and an air knife supporting plate slide rail II 27 which are parallel to each other, the air knife is transversely moved and adjusted through an air knife transverse moving adjusting device with two symmetrically matched ends, and fine adjustment is carried out by manual adjustment, so that the distances between the air blowing openings of the front air knife and the rear air knife and the hot galvanized plate are completely consistent, and the air blowing effects of the front side and the rear side of the hot galvanized plate are completely consistent. The front air knife and the rear air knife are manufactured in the same specification, the same performance, the same process, the same technical standard, the same performance and the same operation mode, and the height, the distance and the blowing and zinc scraping effects of the front air knife and the rear air knife are ensured to be stable and consistent.

Claims (8)

1. The utility model provides a hot galvanized sheet production is with equipment automatic control formula air knife lift structure which characterized in that: the air knife transverse movement adjusting device comprises a base, an air knife longitudinal lifting device, a connecting device, an air knife transverse movement adjusting device, a lifting graduated scale (42) and an air knife transverse movement graduated scale (43), wherein the air knife longitudinal lifting device and the lifting graduated scale (42) are arranged on the base, the air knife longitudinal lifting device is connected with two air knife transverse movement adjusting devices which are symmetrically arranged left and right through the connecting device, and the air knife transverse movement graduated scale (43) is arranged on the connecting device;
the air knife longitudinal lifting device comprises a lifting motor (7), a speed reducer (8), a speed reducer screw rod (10), a speed reducer screw rod connecting shaft (11), a coupler (12), a lifting supporting plate (13) and a lifting supporting plate (14), wherein the lifting motor (7), the speed reducer (8) and the speed reducer screw rod (10) are all arranged on a base, the output end of the lifting motor (7) is connected with the input end of the speed reducer (8), the speed reducer (8) is provided with two output ends, and each output end is connected with the speed reducer screw rod (10) through the coupler (12) and the speed reducer screw rod connecting shaft (11); the top end of a screw rod (10) of the speed reducer is connected with the lower surface of a lifting supporting plate (13), and two lifting supporting plate supporting plates (14) are arranged on the upper surface of the lifting supporting plate (13) in parallel;
the connecting device comprises a bottom plate (15), a front guard plate (16), a rear guard plate (17), a right side plate (18) and a left side plate (19), wherein the front guard plate (16), the rear guard plate (17), the left side plate (19) and the right side plate (18) are respectively arranged on the front, the rear, the left and the right of the bottom plate (15) and are combined together to form a rectangular groove-shaped structure; the lower surface of the bottom plate (15) is connected with two lifting supporting plate supporting plates (14), and an air knife supporting plate slide rail I (26) and an air knife supporting plate slide rail II (27) are transversely arranged on the upper surface of the bottom plate in parallel;
the air knife transverse movement adjusting device comprises a transverse movement motor (20), a transverse movement speed reducer (21), a transverse movement motor speed reducer supporting plate (25), a transverse movement lead screw fixing support bearing (28), a transverse movement lead screw (29), a transverse movement lead screw nut (30), an air knife supporting plate (31), an air knife bearing column (32) and an air knife supporting plate sliding block (33), the transverse movement motor speed reducer supporting plates (25) of the two air knife transverse movement adjusting devices are respectively arranged on the outer sides of a left side plate (19) and a right side plate (18), each transverse movement motor speed reducer supporting plate (25) is provided with the transverse movement motor (20) and the transverse movement speed reducer (21), and the output end of the transverse movement motor (20) is connected with the input end of the transverse movement speed reducer (21); round holes are respectively formed in the left side plate (19) and the right side plate (18) corresponding to the transverse moving speed reducers (21), the output end of each transverse moving speed reducer (21) is connected with one end of a transverse moving screw rod (29) through the corresponding round hole, the other end of the transverse moving screw rod (29) extends into a rectangular groove-shaped structure, transverse moving screw rod fixing and supporting bearings (28) are respectively arranged on the transverse moving screw rods (29), and the transverse moving screw rod fixing and supporting bearings (28) of the two air knife transverse moving adjusting devices are respectively arranged close to the inner sides of the left side plate (19) and the right side plate (18); a transverse screw nut (30) is arranged on the transverse screw (29), an air knife supporting plate (31) is arranged on the transverse screw nut (30), an air knife bearing and placing column (32) is arranged on the upper surface of the air knife supporting plate (31), and an air knife is arranged on the air knife bearing and placing column (32); air knife supporting plate sliding blocks (33) are respectively arranged at the front edge and the rear edge of the lower surface of each air knife supporting plate (31), two air knife supporting plate sliding blocks (33) of each air knife supporting plate (31) are respectively matched with a first air knife supporting plate sliding rail (26) and a second air knife supporting plate sliding rail (27), and the two air knife supporting plate sliding blocks (33) of each air knife supporting plate (31) are respectively arranged on the first air knife supporting plate sliding rail (26) and the second air knife supporting plate sliding rail (27) in a sliding manner; a transverse moving pointer is arranged on the front side surface of the air knife supporting plate (31);
the lifting graduated scale (42) is arranged between the base and the lifting supporting plate (13), the front side surface of the front protection plate (16) is respectively provided with an air knife transverse graduated scale (43) corresponding to the two air knife supporting plates (31), and a transverse pointer points to the air knife transverse graduated scale (43);
air knives of the devices on the two air knife bearing columns (32) are respectively a front air knife and a rear air knife, the front air knife and the rear air knife are respectively arranged on two sides of a hot-galvanized plate which runs up and down, the distances and the heights between the air outlets of the front air knife and the rear air knife and the hot-galvanized plate are completely consistent, and the hot-galvanized plate surface which leaves the zinc pot is blown and scraped.
2. The self-control air knife elevator structure for the production equipment of the hot-galvanized sheet according to claim 1, characterized in that: the base comprises a base shell (1), a base reinforcing plate (2), a positioning guide post hole (3), a positioning guide post sleeve (4), a positioning guide post flange (5) and a speed reducer screw rod hole (6), wherein the base shell (1) is a rectangular cavity shell, two convex posts are symmetrically arranged on the upper surface of the base shell, and the front edge position and the rear edge position of the lower surface of the base shell are respectively provided with the base reinforcing plate (2); positioning guide post holes (3) are respectively arranged at the positions of the two convex posts, and the positioning guide post holes (3) penetrate through the convex posts and the base shell (1); a positioning guide post sleeve (4) is arranged in the positioning guide post hole (3), the upper end and the lower end of the positioning guide post sleeve (4) respectively extend out of the convex post and the base shell, a positioning guide post (9) is arranged in the positioning guide post sleeve (4), and positioning guide post flanges (5) are respectively arranged at the upper end and the lower end of the positioning guide post sleeve (4) to plug the positioning guide post (9); an annular oil filling line is arranged on the inner wall of the positioning guide post sleeve (4), and the positioning guide post (9) is lubricated and stable when moving up and down; the upper surface of the base shell (1) outside the two convex columns is symmetrically provided with a first speed reducer screw rod hole (6), the lower surface of the base shell (1) corresponding to the first speed reducer screw rod hole is respectively provided with a second speed reducer screw rod hole with the same diameter, and the speed reducer screw rod (10) is arranged on the base shell (1) through the first speed reducer screw rod hole (6) and the second speed reducer screw rod hole.
3. The self-control air knife elevator structure of hot-dip galvanized sheet production equipment according to claim 1 or 2, characterized in that: the lifting motor (7) and the speed reducer (8) are arranged on the base shell between the two convex columns, the two convex columns are respectively and transversely provided with through holes, and two output ends of the speed reducer (8) are respectively connected with a screw rod lead screw (10) of the speed reducer through the through holes, a coupling (12) and a screw rod lead screw connecting shaft (11) of the speed reducer.
4. The self-control air knife elevator structure of hot-dip galvanized sheet production equipment according to claim 1 or 2, characterized in that: the input end of the transverse moving speed reducer (21) is connected with a hand wheel shaft (23), the hand wheel shaft (23) is provided with a hand wheel shaft fixing and supporting bearing (24), and the hand wheel shaft fixing and supporting bearings (24) of the two air knife transverse moving adjusting devices are respectively connected with the left side plate (19) and the right side plate (18); the end part of the hand wheel shaft (23) is provided with a transverse hand wheel (22).
5. The self-control air knife elevator structure for the production equipment of the hot-galvanized sheet according to claim 4, characterized in that: the transverse screw rod fixing and supporting bearing (28) is arranged on the bottom plate (15) through a bearing seat, and the bearing seat is in a long column shape.
6. The self-control air knife elevator structure for the production equipment of the hot-galvanized sheet according to claim 4, characterized in that: the rear side face of the air knife supporting plate (31) is provided with a limit switch collision block (34), the inner side of the rear guard plate (17) is provided with a limit switch I (35) and a limit switch II (36), and the limit switch I (35) and the limit switch II (36) are matched with the limit switch collision block (34) to limit the air knife supporting plate (31).
7. A method for using a self-controlled air knife elevator of a hot-dip galvanized sheet production facility, which adopts the elevator structure defined in any one of claims 1 to 6, and is characterized by comprising the following steps:
the base is fixed on the basis of the side surface of a zinc pot, air blowing openings of a front air knife and a rear air knife are correspondingly arranged on two surfaces of a hot galvanized plate which moves upwards away from the zinc pot and are arranged oppositely, air knife supporting plates (31) of the front air knife and the rear air knife slide on an air knife supporting plate slide rail I (26) and an air knife supporting plate slide rail II (27) which are parallel to each other together, the distance between the air blowing openings and the hot galvanized plate is adjusted through respective air knife transverse movement adjusting devices, and the distance between the air blowing openings of the front air knife and the rear air knife and the hot galvanized plate is adjusted to be completely consistent; the longitudinal heights of the front air knife and the rear air knife are adjusted by the same air knife longitudinal lifting device, so that the longitudinal heights of the air blowing openings of the front air knife and the rear air knife are completely consistent with those of the hot galvanized plate; the front air knife and the rear air knife blow and scrape the surface of the hot galvanized plate away from the zinc pot; the front air knife and the rear air knife are manufactured in the same specification, the same performance, the same process, the same technical standard, the same performance and the same operation mode, and the height, the distance and the zinc blowing and scraping effects of the front air knife and the rear air knife are ensured to be stable and consistent;
the distance between the air blowing openings of the front air knife and the rear air knife and the hot-galvanized plate is adjusted through respective air knife transverse movement adjusting devices, coarse adjustment is completed through the air knife transverse movement adjusting devices, fine adjustment is performed through observation of an air knife transverse moving graduated scale (43) and rotation of a hand wheel shaft (23) at the input end of a transverse moving speed reducer (21), and the distance between the air blowing openings of the front air knife and the rear air knife and the hot-galvanized plate is completely consistent; the longitudinal height of the front and rear air knives is adjusted and the final longitudinal height of the front and rear air knives is determined by observing the elevation scale (42).
8. The use method of the self-control air knife elevator of the hot-galvanized sheet production equipment according to claim 7, characterized in that:
the lifting operation of the longitudinal lifting device of the air knife for adjusting the longitudinal height: starting a lifting motor (7), rotating a speed reducer (8), driving a screw rod (10) of the speed reducer to rotate forward and backward and move up and down through a coupling (12) and a screw rod connecting shaft (11) of the speed reducer, driving a bottom plate (15) to lift through a lifting supporting plate (14) and driving an air knife bearing column (32) of an air knife transverse movement adjusting device to lift, and finally realizing air knife lifting;
transverse movement operation of the air knife transverse movement adjusting device: starting a transverse moving motor (20), rotating a transverse moving speed reducer (21) to drive a transverse moving lead screw (29) to transversely move, and moving a transverse moving lead screw nut (30) along with the transverse moving lead screw, so that air knife supporting plates (31) of two air knife transverse moving adjusting devices respectively slide on an air knife supporting plate slide rail I (26) and an air knife supporting plate slide rail II (27) through respective two air knife supporting plate slide blocks (33), and air knife bearing columns (32) are driven to transversely move; when the air knife supporting plate (31) runs out of position, the limit switch collision block (34) collides with the limit switch I (35) or the limit switch II (36), so that the moving position of the air knife supporting plate is limited.
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