CN110565038B - Air knife baffle plate for photoelectric self-control type hot dip galvanized sheet production and use method - Google Patents
Air knife baffle plate for photoelectric self-control type hot dip galvanized sheet production and use method Download PDFInfo
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- CN110565038B CN110565038B CN201911000390.1A CN201911000390A CN110565038B CN 110565038 B CN110565038 B CN 110565038B CN 201911000390 A CN201911000390 A CN 201911000390A CN 110565038 B CN110565038 B CN 110565038B
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 title claims description 24
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 88
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 88
- 239000011701 zinc Substances 0.000 claims abstract description 88
- 230000003287 optical effect Effects 0.000 claims description 7
- 239000000523 sample Substances 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 230000006698 induction Effects 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 206010044565 Tremor Diseases 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 210000001503 joint Anatomy 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000002146 bilateral effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
Classifications
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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
- C23C2/04—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
-
- 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
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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)
- Coating With Molten Metal (AREA)
Abstract
The invention relates to an air knife baffle for producing a photoelectric self-control hot dip galvanized plate and a use method thereof, belonging to the technical field of hot dip galvanized plates in the metallurgical industry. The technical proposal is as follows: the length of the cross beam is consistent with that of the girder of the air knife, the cross beam and the girder of the air knife are jointly placed on the air knife lifter, and the cross beam is positioned between the girders of the two air knives; and two sets of identical photoelectric control systems, a movable slipway system, a movable beam system and an anti-collision system are respectively and bilaterally symmetrically arranged on the cross beam. The invention makes the air knife baffle reasonable in structure, realizes strong sensitivity and full-automatic intelligent control type air knife baffle, makes the width of zinc surface at the edge of zinc plate more consistent, makes the thickness of zinc layer more uniform and smooth, improves the quality of the edge of zinc plate, reduces zinc consumption and improves benefit.
Description
Technical Field
The invention relates to an air knife baffle for producing a photoelectric self-control hot dip galvanized plate and a use method thereof, belonging to the technical field of hot dip galvanized plates in the metallurgical industry.
Background
At present, according to the technical requirements of the hot galvanized plate production process, in order to ensure the quality of the galvanized plate edge, an air knife auxiliary device, namely an air knife baffle plate, is arranged on hot galvanizing except a main machine air knife. The baffle is positioned between the two air knives and is arranged on an air knife lifter, and is supported and arranged on a galvanized pot platform through the lifter. The temperature of the zinc liquid in the zinc pot is over 500 ℃ for a long time, and the air knife and the baffle are positioned on a platform which is less than 0.5 meter away from the zinc liquid. The air knife baffle is used for: specially adjusting and controlling the edge quality of the galvanized plate in high-speed running at the production speed of about 160 m/min. At present, the air knife baffle used by each hot dip galvanized sheet production enterprise adopts two structural forms:
the first is a manually operated baffle, its structural form and drawbacks: firstly, a baffle is directly arranged on an air knife girder or a special baffle frame, a group of metal rollers are respectively arranged on two sides of the girder or the baffle frame, the distance between the two groups of rollers is manually adjusted in advance before production operation, the left and right swinging and the longitudinal and transverse vibration generated by a zinc plate in high-speed operation are directly blocked by the hardness of the rollers, the rollers are in friction with the edge of the zinc plate in high-speed operation for a long time, and the rollers are scrapped and replaced after dents appear about ten days at most, and at least 8 hours are needed for replacement once; secondly, the metal roller is driven by a zinc plate running at a high speed to rotate at the same speed, so that the metal roller and a roller bearing which are suitable for high temperature, high speed and friction resistance are difficult to select in the market at present, the production failure is frequent, and the production failure is difficult to avoid artificially; thirdly, the zinc plate is in direct hard contact with the roller, the gap between the two wheels is affected after the roller is dented, the width of the surface of the zinc plate is different, a hard operation contact mode is adopted to prevent the zinc plate from swinging left and right and vibrating longitudinally and transversely in the high-speed operation, the purposes of reducing and relieving can only be achieved, the purpose of better cannot be achieved, and the quality of the edge of the zinc plate still has the quality problem of different degrees.
The second kind is magnetoelectric induction type air knife baffle, its structural style and drawback are: the magneto-electric sensor device pushes the movable beam to move back and forth below the baffle beam in a magneto-electric sensing mode, directly pushes the upper device counterweight iron to move back and forth by taking the movable beam as a fulcrum, and the vertical support iron of the baffle plate at the lower end moves back and forth to implement baffle plate movement and give quality control to the edge of the zinc plate. The process and the technical scheme have more defects, such as: (1) the whole structure of the baffle is based on the lever principle, the design structure is simple, when the zinc plate is produced, the speed per hour reaches about 160 meters per minute, the zinc plate in operation generates high-frequency swing tremble, and at the moment, the baffle is put into and cut off and is delayed to the offset speed of the plate and the strip due to low magnetic sensitivity and large error of the lever structure, so that the use effect of the baffle is reduced, and the edge quality of the zinc plate is influenced; (2) the magnetic and electric induction structure body is a high-frequency magnetic control original piece, the anti-interference capability is poor, when the magnetic and electric induction structure body is in a mixed magnetic field environment of steel air knife equipment such as an air knife girder, a knife body and a cantilever and molten zinc liquid, such as an intermediate frequency, a high-frequency induction furnace and a zinc pot, the magnetic and electric induction can be correspondingly interfered, the magnetic and electric induction effect is reduced, the feedback error of sensor signals is caused, the misoperation is caused, the expected design effect of the air knife baffle is influenced, and the quality of the edge of the zinc plate is influenced.
Disclosure of Invention
The invention aims to provide an air knife baffle plate for producing a photoelectric self-control hot dip galvanized plate and a use method thereof, which enable the air knife baffle plate to have reasonable structure, realize strong sensitivity and full-automatic intelligent control of the air knife baffle plate, enable the width of the zinc surface at the edge of a zinc plate to be more consistent, enable the thickness of the zinc layer to be more uniform and smooth, improve the quality of the edge of the zinc plate, reduce zinc consumption and improve benefits, and solve the problems existing in the prior art.
The technical scheme of the invention is as follows:
an air knife baffle for producing a photoelectric self-control hot dip galvanized plate comprises a beam system, a photoelectric control system, a movable sliding table system and a movable beam system; the beam system includes: the beam, the beam head and the beam manual adjusting wheels are respectively arranged at two ends of the beam, and the beam manual adjusting wheels are arranged on the beam head; the length of the cross beam is consistent with that of the girder of the air knife, the cross beam and the girder of the air knife are jointly placed on the air knife lifter, and the cross beam is positioned between the girders of the two air knives; two sets of identical photoelectric control systems, a movable slipway system, a movable beam system and an anti-collision system are symmetrically arranged on the cross beam;
the movable sliding table system comprises a coupler, a screw rod nut, a guide rail sliding block and a sliding table plate, wherein the coupler is arranged at the end part of the screw rod, the sliding table plate is of a right-angle plate structure and is composed of a vertical plate and a transverse plate which are mutually vertical, the vertical plate and the transverse beam of the sliding table plate are vertically arranged, the screw rod is parallel to the transverse beam and matched with the screw rod nut, the screw rod nut is fixed at the right angle of the sliding table plate, the inner side of the screw rod nut is fixed on the vertical plate, and the upper side of the screw rod nut is fixed on the transverse plate; the guide rail is arranged in parallel with the cross beam and is fixed on the cross beam, a guide rail sliding block matched with the guide rail is arranged on the cross plate of the sliding table plate, and the sliding table plate and the guide rail sliding block synchronously move along the guide rail simultaneously when the screw nut moves;
the movable beam system comprises an upper vertical beam, a lower vertical beam, a vertical beam connecting plate, a baffle plate, a movable beam balance plate, a balance plate guide rail and a balance plate sliding block, wherein one end of the movable beam balance plate is fixedly connected to the lower end of a sliding table plate of the movable beam system, the other end of the movable beam balance plate is connected with the upper vertical beam, the upper vertical beam and the lower vertical beam are vertically arranged with a cross beam, the upper vertical beam and the lower vertical beam are connected together through the vertical beam connecting plate, and the baffle plate is arranged at the bottom of the lower vertical beam; the balance plate guide rail which is arranged in parallel with the guide rail is fixedly arranged on the cross beam, the balance plate guide rail is matched with a balance plate sliding block, the balance plate sliding block is fixed with the movable beam balance plate, the sliding table plate moves along the guide rail, the movable beam balance plate and the balance plate sliding block move along the balance plate guide rail, and meanwhile, the upper vertical beam, the lower vertical beam and the baffle plate synchronously move;
the photoelectric control system comprises a photoelectric sensor, a servo motor and a sensor support, wherein the servo motor is arranged on the beam head, and an output shaft of the servo motor is connected with a lead screw through a coupler; the top of the upper vertical beam is provided with an inductor support, and the photoelectric inductor is arranged on the inductor support.
Two sets of same collision avoidance systems are respectively installed on bilateral symmetry on the crossbeam, and the collision avoidance system comprises gyro wheel and gyro wheel support, and the gyro wheel setting is on the gyro wheel support, and the gyro wheel support sets up on the top of last vertical beam, is located below the inductor support. The anti-collision system is used for preventing the photoelectric sensor from being damaged due to overlarge swing and collision when the zinc plate runs at high speed.
The photoelectric control system further comprises an inductor connecting wire and an electric cabinet, the electric cabinet is arranged on the beam head, the servo motor is arranged in the beam head below the electric cabinet, the photoelectric inductor is connected with the electric cabinet through the inductor connecting wire, the electric cabinet is connected with the servo motor through a lead wire, and the photoelectric signal is enabled to control the servo motor to operate through the electric cabinet to drive a screw rod connected with the servo motor to rotate.
The lower vertical beam is connected with the vertical beam connecting plate through the hook, the lower vertical beam is provided with a hanging post, the vertical beam connecting plate is provided with a hook, the hook is hung on the hanging post, the lower vertical beam is connected with the vertical beam connecting plate together, the hook can be taken off from the hanging post, and the baffle at the bottom of the lower vertical beam is convenient to replace and overhaul.
The guide rail limit switch and the guide rail travel switch are respectively arranged at the two ends of the guide rail, and when the guide rail sliding block runs out-of-position and collides, the guide rail sliding block automatically cuts off power to stop running, so that the overall running safety is ensured; after the photoelectric control system instructs the servo motor to run forward and backward, the servo motor runs forward and backward and moves forward and backward through the parts such as the coupler, the lead screw, the guide rail sliding block and the sliding table plate. The inner side of the lower end of the right-angle sliding table plate is fixedly connected with the balance plate of the movable beam, and the front and back movement of the sliding table plate drives the movable beam system to move along with the front and back movement.
The lowest end of the lower vertical beam is provided with an oval baffle, and the maximum diameter of the baffle is about 300mm.
The electric cabinet is internally provided with a PLC controller, a photoelectric signal converter and the like, optical signals are transmitted to the PLC controller after being changed into electric signals, and then the PLC controls a servo motor to drive the sliding table plate, the movable beam balance plate and the baffle to synchronously move. During production, the interval between the two baffles and the frequency of the photoelectric signal matched with the interval are set according to the width of the zinc plate; when the zinc plate runs at high speed to generate longitudinal and transverse swinging and left and right vibration, the distance between the baffles is automatically adjusted by the signals received by the photoelectric sensor, so that the baffles are always kept within a set distance from the zinc plate, and the quality problem of the edge of the zinc plate caused by the swinging or vibration of the zinc plate is solved.
The beam is a skeleton structure of the air knife baffle, and the two groups of photoelectric systems, the movable sliding table system and the movable beam system are symmetrically arranged on the same beam respectively;
the beam system is also provided with a manual beam adjusting wheel which is arranged on the beam head, and the positions of the beam heads at the two ends of the beam are adjusted through a known adjusting structure, so that the lengths of the beam and the girder of the air knife are consistent, and the beam and the girder are kept parallel to each other.
The application method of the air knife baffle for producing the photoelectric self-control hot dip galvanized plate adopts the air knife baffle and comprises the following steps:
the photoelectric sensor of the photoelectric control system collects forward and backward swinging and left and right vibration conditions generated by a zinc plate running at high speed in zinc plate production, converts optical signals into electric signals, and drives a servo motor to run forward or backward through a PLC to drive a sliding table plate, a movable beam balance plate and a baffle plate to move synchronously; during production, the interval between the two baffles and the frequency of the photoelectric signal matched with the interval are set according to the width of the zinc plate; when the zinc plate runs at high speed to generate longitudinal and transverse swinging and left and right vibration, the distance between the baffles is automatically adjusted by the signals received by the photoelectric sensor, so that the baffles are always kept within a set distance from the zinc plate.
The photoelectric sensors are symmetrically arranged above the two upper vertical beams, bosses are arranged at two ends of the photoelectric sensors, a recess is formed between the two bosses, a recess structure is integrally formed, and photoelectric probes of the photoelectric sensors are arranged in the recess structure; the two photoelectric sensors are oppositely arranged, the two groove structures are opposite, and the two edges of the zinc plate respectively pass through the groove structures of the two photoelectric sensors; in the production operation, when the photoelectric sensing device receives up-and-down swinging and left-and-right vibration signals generated by the zinc plate in the operation, the signals are transmitted into the electric cabinet through the connecting wire, the optical signals are converted into electric signals, the electric signals instruct the servo motor to operate in the forward direction or the reverse direction, and the output shaft of the servo motor is connected with the movable sliding table screw rod through the coupler to drive the movable sliding table system to mechanically operate.
After the servo motor drives the moving sliding table screw rod to operate, the screw rod nut on the screw rod can operate forwards and backwards along with the forward and backward operation of the screw rod, the screw rod nut is connected with the guide rail slide block, the lower end of the guide rail slide block is tightly buckled on the guide rail which is arranged in parallel and in accordance with the baffle girder, the upper end of the guide rail is fixedly connected with the upper end of the moving sliding table, the slide block correspondingly drives the sliding table plate to synchronously move forwards and backwards during the forward and backward movement of the slide block, the sliding table plate forms a right-angle plate structure, the lower side of the upper end of the sliding table plate is transversely provided with the slide block, one end of the slide block is arranged on the inner side of a right-angle plate riser, the lower end of the riser is connected with the moving girder balance plate, and the slide block drives the sliding table plate to synchronously move along with the front and back movement of the slide block.
Two identical guide blocks are arranged on the upper sides of the two ends of the movable beam balance plate, an operation guide rail is arranged between the lower surface of the baffle girder and the movable beam balance plate, the guide blocks are connected with the guide rail, and the movable baffle plate can move in parallel along the guide rail when driving the movable balance beam to move; the photoelectric control system implements integral linkage through the movable slipway system and the movable beam system; when the movable beam balance plate moves forwards and backwards along the movable beam guide rail along with the movable baffle plate, the movable beam is orderly pushed to move forwards and backwards; the photoelectric sensor continuously receives and transmits new signals, so that the whole air knife baffle forms full-automatic reciprocating circulation linkage consisting of a photoelectric control system, a movable sliding table system, a movable beam system and a baffle driven to move. Two groups of identical systems are symmetrically arranged on one air knife baffle, the two sides of a zinc plate are symmetrically used in high-speed operation, when the zinc plate deflects leftwards and rightwards and vibrates, the baffles on the two sides can automatically operate all the time and are kept at the set positions on the two sides of the zinc plate, the width of the galvanized plate is ensured, and the quality problems of uneven width, uneven thickness and the like of the zinc surface at the edge of the galvanized plate are solved.
The anti-collision system acts as: when the zinc plate is produced in high-speed operation and large deviation or equipment failure occurs suddenly, the sudden phenomenon is prevented from being crashproof and protected to photoelectric sensor and other devices.
The invention has the beneficial effects that:
(1) the left and right swinging and front and back trembling of the zinc plate caused by high-speed operation in the production of the zinc plate are timely found, the position of the baffle plate is automatically and effectively adjusted, and the quality problems of uneven width of the zinc surface at the edge of the zinc plate and uneven thickness of the zinc layer caused by swinging and trembling are reduced or completely eradicated;
(2) solves the problem that the manual baffle is produced only by hard extrusion adjustment of the metal roller: the phenomenon that the roller is manually replaced when the production is stopped for about one week due to the fact that the concave and damage occur in a short period of the roller caused by the high-speed long-time running of the edge part of the zinc plate and the roller and the friction of the roller is avoided, the phenomena of stopping the production, adjusting and replacing the roller are avoided, and the operation rate of equipment is improved;
(3) the photoelectric induction device overcomes the misoperation condition caused by the fact that the magnetic and electric induction devices are susceptible to iron and steel and electromagnetic interference to be desensitized and malfunction. When in production, the air knife baffle is completely positioned in steel equipment such as an air knife, a sink roll and the like, and is far away from the side of the intermediate frequency zinc melting furnace, so that the magnetic and electric interference is large, and the magnetic and electric induction effects are affected. The photoelectric sensing device is adopted, so that the interference is eliminated, the response speed is increased, and the real-time response and normal operation of the air knife baffle device in the use process can be effectively ensured;
(4) the new design breaks the lever principle structure of the air knife baffle plate used at present, innovatively adopts a track type running structure, namely a multidirectional combination of a photoelectric control system, a movable sliding table system, a movable beam system and the like, and adds an anti-collision system to increase the sensitivity of the baffle plate, so that the operation treatment of blowing zinc scraping and the baffle plate simultaneously, synchronously, safely and reliably operates, and compared with the original design, the method is more reasonable and complete, and the quality of the edge part of zinc plate production is kept in an optimal state.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic top view of an embodiment of the present invention;
FIG. 3 is a schematic view of a cross beam in accordance with an embodiment of the present invention;
FIG. 4 is a schematic view of a baffle plate according to an embodiment of the present invention;
FIG. 5 is a schematic view of a slipsheet according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a photo sensor according to an embodiment of the invention;
FIG. 7 is a schematic view of a hanger according to an embodiment of the present invention;
in the figure: a cross beam 1; a beam head 2; the beam manual adjusting wheel 3; a photoelectric sensor 4; an inductor connecting wire 5; an electric control box 6; a servo motor 7; an inductor support 8; a coupling 9; a screw 10; a screw nut 11; a guide rail 12; a guide rail slider 13; a guide rail limit switch 14; a guide rail travel switch 15; a slide plate 16; a roller 17; a roller support 18; an upper vertical beam 19; a lower vertical beam 20; a vertical beam connecting plate 21; a baffle 22; a movable beam balance plate 23; balance plate rail 24; a balance plate slider 25; a boss 26; a recess 27; a hanging post 28; a hook 29.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings.
An air knife baffle for producing a photoelectric self-control hot dip galvanized plate comprises a beam system, a photoelectric control system, a movable sliding table system and a movable beam system; the beam system includes: the beam comprises a beam 1, a beam head 2 and a beam manual adjusting wheel 3, wherein the beam head 2 is respectively arranged at two ends of the beam, and the beam manual adjusting wheel 3 is arranged on the beam head 2; the length of the cross beam is consistent with that of the girder of the air knife, the cross beam and the girder of the air knife are jointly placed on the air knife lifter, and the cross beam is positioned between the girders of the two air knives; two sets of identical photoelectric control systems, a movable slipway system, a movable beam system and an anti-collision system are symmetrically arranged on the cross beam;
the movable sliding table system comprises a coupler 9, a screw rod 10, a screw rod nut 11, a guide rail 12, a guide rail sliding block 13 and a sliding table plate 16, wherein the coupler 9 is arranged at the end part of the screw rod 10, the sliding table plate 16 is of a right-angle plate structure and consists of vertical plates and transverse plates which are mutually perpendicular, the vertical plates of the sliding table plate 16 are arranged perpendicular to the transverse beam 1, the screw rod 10 is arranged in parallel with the transverse beam 1 and matched with the screw rod nut 11, the screw rod nut 11 is fixed at a right angle of the sliding table plate 16, the inner side of the screw rod nut 11 is fixed on the vertical plates, and the upper side of the screw rod nut 11 is fixed on the transverse plates; the guide rail 12 is arranged in parallel with the cross beam 1 and is fixed on the cross beam 1, a guide rail sliding block 13 matched with the guide rail 12 is arranged on the cross plate of the sliding table plate 16, and the sliding table plate 16 and the guide rail sliding block 13 synchronously move along the guide rail 12 simultaneously when the screw nut 11 moves;
the movable beam system comprises an upper vertical beam 19, a lower vertical beam 20, a vertical beam connecting plate 21, a baffle 22, a movable beam balance plate 23, a balance plate guide rail 24 and a balance plate sliding block 25, wherein one end of the movable beam balance plate 23 is fixedly connected to the lower end of a sliding table plate 16 of the movable beam system, the other end of the movable beam balance plate is connected with the upper vertical beam 19, the upper vertical beam 19 and the lower vertical beam 20 are vertically arranged with a cross beam 1, the upper vertical beam 19 and the lower vertical beam 20 are connected together through the vertical beam connecting plate 21, and the baffle 22 is arranged at the bottom of the lower vertical beam 20; a balance plate guide rail 24 which is arranged in parallel with the guide rail 12 is fixedly arranged on the cross beam, a balance plate slide block 25 is matched with the balance plate guide rail 24, the balance plate slide block 25 is fixed with a movable beam balance plate 23, the slide table plate 16 moves along the guide rail 12, the movable beam balance plate 23 and the balance plate slide block 25 move along the balance plate guide rail 24, and meanwhile, the upper vertical beam 19, the lower vertical beam 20 and the baffle 22 synchronously move;
the photoelectric control system comprises a photoelectric sensor 4, a servo motor 7 and a sensor support 8, wherein the servo motor 7 is arranged on the beam head 2, and an output shaft of the servo motor 7 is connected with a lead screw 10 through a coupler 9; the top of the upper vertical beam 19 is provided with an inductor support 8, and the photoelectric inductor 4 is arranged on the inductor support 8.
Two sets of same collision avoidance systems are respectively arranged on the transverse beam in bilateral symmetry, each collision avoidance system consists of a roller 17 and a roller support 18, the rollers 17 are arranged on the roller supports 18, the roller supports 18 are arranged at the top ends of the upper vertical beams 19, and the roller supports are positioned below the sensor supports 8. The anti-collision system is used for preventing the photoelectric sensor from being damaged due to overlarge swing and collision when the zinc plate runs at high speed.
The photoelectric control system further comprises an inductor connecting wire 5 and an electric cabinet 6, the electric cabinet 6 is arranged on the beam head 2, the servo motor 7 is arranged in the beam head 2 below the electric cabinet, the photoelectric inductor 4 is connected with the electric cabinet 6 through the inductor connecting wire, the electric cabinet 6 is connected with the servo motor 7 through a lead wire, the photoelectric signal controls the servo motor to operate through the electric cabinet 6, and a lead screw connected with the servo motor is driven to rotate.
The lower vertical beam 20 is connected with the vertical beam connecting plate 21 through a hook 29, a hanging post 28 is arranged on the lower vertical beam 20, a hook 29 is arranged on the vertical beam connecting plate 21 and is hung on the hanging post, the lower vertical beam 20 is connected with the vertical beam connecting plate 21, and the hook can be taken off from the hanging post, so that the baffle 22 at the bottom of the lower vertical beam 20 is convenient to replace and overhaul.
The two ends of the guide rail 12 are respectively provided with a guide rail limit switch 14 and a guide rail travel switch 15, and when the guide rail sliding block 13 runs off-site and collides, the automatic power-off stops running, so that the overall running safety is ensured; after the forward and reverse running of the servo motor 7 is instructed by the photoelectric control system, the forward and reverse running and the forward and backward movement of all parts such as the coupler 9, the lead screw 10, the guide rail sliding block 13, the sliding table plate 16 and the like are realized. The inner side of the lower end of the right-angle sliding table plate 16 is fixedly connected with a movable beam balance plate 23, and the front and back movement of the sliding table plate 16 drives the movable beam system to move along with the front and back movement.
The lowest end of the lower vertical beam is provided with an oval baffle, and the maximum diameter of the baffle is about 300mm.
The electric cabinet is internally provided with a PLC controller, a photoelectric signal converter and the like, optical signals are converted into electric signals and then transmitted to the PLC controller, and then the PLC controls a servo motor to drive the sliding table plate 16, the movable beam balance plate 23 and the baffle 22 to synchronously move. During production, the interval between the two baffles and the frequency of the photoelectric signal matched with the interval are set according to the width of the zinc plate; when the zinc plate runs at high speed to generate longitudinal and transverse swinging and left and right vibration, the distance between the baffles is automatically adjusted by the signals received by the photoelectric sensor, so that the baffles are always kept within a set distance from the zinc plate, and the quality problem of the edge of the zinc plate caused by the swinging or vibration of the zinc plate is solved.
The beam is a skeleton structure of the air knife baffle, and the two groups of photoelectric systems, the movable sliding table system and the movable beam system are symmetrically arranged on the same beam respectively;
the beam system is also provided with a manual beam adjusting wheel 3 which is arranged on the beam head 2, and the positions of the beam heads 2 at the two ends of the beam are adjusted through a known adjusting structure, so that the lengths of the beam and the girder of the air knife are consistent, and the beam and the girder are kept parallel to each other.
The application method of the air knife baffle for producing the photoelectric self-control hot dip galvanized plate adopts the air knife baffle and comprises the following steps:
the photoelectric sensor of the photoelectric control system collects forward and backward swinging and left and right vibration conditions generated by a zinc plate running at high speed in zinc plate production, converts optical signals into electric signals, drives a servo motor to run forward or backward through a PLC, and drives a sliding table plate 16, a movable beam balance plate 23 and a baffle 22 to move synchronously; during production, the interval between the two baffles and the frequency of the photoelectric signal matched with the interval are set according to the width of the zinc plate; when the zinc plate runs at high speed to generate longitudinal and transverse swinging and left and right vibration, the distance between the baffles is automatically adjusted by the signals received by the photoelectric sensor, so that the baffles are always kept within a set distance from the zinc plate.
The number of the photoelectric sensors 4 is two, the photoelectric sensors are symmetrically arranged above the two upper vertical beams, bosses 26 are arranged at two ends of each photoelectric sensor, a recess 27 is formed between the two bosses 26, a groove structure is integrally formed, and photoelectric probes of the photoelectric sensors are arranged in the groove structure; the two photoelectric sensors are oppositely arranged, the two groove structures are opposite, and the two edges of the zinc plate respectively pass through the groove structures of the two photoelectric sensors; in the production operation, when the photoelectric sensing device receives up-and-down swinging and left-and-right vibration signals generated by the zinc plate in the operation, the signals are transmitted into the electric cabinet through the connecting wire, the optical signals are converted into electric signals, the electric signals instruct the servo motor to operate in the forward direction or the reverse direction, and the output shaft of the servo motor is connected with the movable sliding table screw rod through the coupler to drive the movable sliding table system to mechanically operate.
After the servo motor drives the moving sliding table screw rod to operate, the screw rod nut on the screw rod can operate forwards and backwards along with the forward and backward operation of the screw rod, the screw rod nut is connected with the guide rail slide block, the lower end of the guide rail slide block is tightly buckled on the guide rail which is arranged in parallel and in accordance with the baffle girder, the upper end of the guide rail is fixedly connected with the upper end of the moving sliding table, the slide block correspondingly drives the sliding table plate to synchronously move forwards and backwards during the forward and backward movement of the slide block, the sliding table plate forms a right-angle plate structure, the lower side of the upper end of the sliding table plate is transversely provided with the slide block, one end of the slide block is arranged on the inner side of a right-angle plate riser, the lower end of the riser is connected with the moving girder balance plate, and the slide block drives the sliding table plate to synchronously move along with the front and back movement of the slide block.
Two identical guide blocks are installed on the upper sides of the two ends of the movable beam balance plate, an operation guide rail is arranged between the lower surface of the baffle girder and the movable beam balance plate, the guide blocks are connected with the guide rail, and the movable baffle plate can move in parallel along the guide rail when driving the movable balance beam to move. The photoelectric control system implements integral linkage through the movable slipway system and the movable beam system. When the movable beam balance plate moves forwards and backwards along the movable beam guide rail along with the movable baffle plate, the movable beam is orderly pushed to move forwards and backwards; the photoelectric sensor continuously receives and transmits new signals, so that the whole air knife baffle forms full-automatic reciprocating circulation linkage consisting of a photoelectric control system, a movable sliding table system, a movable beam system and a baffle driven to move. Two groups of identical systems are symmetrically arranged on one air knife baffle, the two sides of a zinc plate are symmetrically used in high-speed operation, when the zinc plate deflects leftwards and rightwards and vibrates, the baffles on the two sides can automatically operate all the time and are kept at the set positions on the two sides of the zinc plate, the width of the galvanized plate is ensured, and the quality problems of uneven width, uneven thickness and the like of the zinc surface at the edge of the galvanized plate are solved.
The anti-collision system acts as: when the zinc plate is produced in high-speed operation and large deviation or equipment failure occurs suddenly, the sudden phenomenon is prevented from being crashproof and protected to photoelectric sensor and other devices.
In an embodiment: the beam system includes: the length of the cross beam 1, the cross beam head 2 and the cross beam manual adjusting wheel 3 is consistent with that of the air knife girder, the cross beam is commonly placed on the air knife lifter and positioned between the two air knife girders, the cross beam is an air knife baffle skeleton device, two groups of photoelectric control systems, a movable sliding table system, a movable beam system and an anti-collision system are respectively and symmetrically installed inwards at two ends, and the systems are reasonably loaded and guaranteed to normally operate.
The photoelectric control system comprises: photoelectric sensor 4, inductor connecting wire 5, electric cabinet 6, servo motor 7 and inductor support 8 five parts are constituteed, equally divide two sets of symmetry to install and lean on intermediate position at the crossbeam, and its effect is: after the photoelectric sensors 4 are assembled in pairs, two edges of a zinc plate in high-speed operation pass through the groove structures of the two photoelectric sensors 4 respectively, the photoelectric sensors vibrate left and right and vibrate and shift in the operation of the zinc plate, induction signals are transferred into the electric cabinet 6 through the sensor connecting wire 5, the induction signals are converted into electric signals through the electric cabinet 6, the servo motor 7 is started to operate positively and reversely, and the movable sliding table system is driven to operate positively and reversely, so that operation is implemented.
The movable slipway system comprises eight parts, namely a coupler 9, a screw rod 10, a screw nut 11, a guide rail 12, a guide rail sliding block 13, a guide rail limit switch 14, a guide rail travel switch 15 and a slipway plate 16. The two groups of the system are symmetrically arranged on one side of the girder near the girder head, the installation sequence is sequentially from outside to inside, the coupler 9 is used for butt joint between the servo motor 7 of the photoelectric control system and the screw rod 10 of the system, the screw rod 10 is provided with a screw rod nut 11, the sliding table plate is in a right-angle plate structure, one end of the screw rod nut 11 is fixedly arranged at the inner end of the vertical side of the sliding table plate 16, the upper side of the screw rod nut 11 is fixedly connected with the inner side of the transverse plate on the sliding table plate 16, the inner side of the transverse plate on the sliding table plate 16 is simultaneously provided with a guide rail slide block 13, and the sliding table plate 16 and the guide rail slide block 13 synchronously move along with the movement of the screw rod nut 11 forwards and backwards. The guide rail slide block 13 is in butt joint with the guide rail 12, so that the guide rail slide block and the sliding table plate 16 connected with the guide rail slide block move back and forth along the guide rail 12. The two ends of the guide rail 12 are respectively provided with a guide rail limit switch 14 and a guide rail travel switch 15, and when the guide rail slide block 13 runs out-of-position and collides, the operation is stopped by automatic power failure, so that the overall operation safety is ensured. After the forward and reverse running of the servo motor 7 is instructed by the photoelectric control system, the forward and reverse running and the forward and backward movement of all parts such as the coupler 9, the lead screw 10, the guide rail sliding block 13, the sliding table plate 16 and the like are realized. The inner side of the lower end of the right-angle sliding table plate 16 is fixedly connected with a movable beam balance plate 23, and the front and back movement of the sliding table plate 16 drives the movable beam system to move along with the front and back movement.
The walking beam system includes: seven parts of an upper vertical beam 19, a lower vertical beam 20, a vertical beam connecting plate 21, a baffle 22, a movable beam balance plate 23, a balance plate guide rail 24 and a balance plate sliding block 25. One end of a movable beam balance plate 23 is fixedly connected to the lower end of a sliding table plate 16 of the movable beam system, the other end of the movable beam balance plate is in butt joint with the middle position of an upper vertical beam 19, the sliding table plate 16 moves back and forth, and the movable beam balance plate 23 and the upper vertical beam 19 synchronously move. The balance plate 23 is provided with a balance plate slide block 25, the lower end surface of the cross beam 1 is provided with a balance plate guide rail 24 and the balance plate slide block 25, the balance plate slide block 25 is in butt joint with the balance plate guide rail 24, so that the movable beam balance plate 23 runs along the balance plate guide rail 24 and the girder 1 in parallel and orderly, the upper top end of the upper vertical beam 19 is provided with a photoelectric sensor 4, the lower end of the upper vertical beam 19 is provided with a lower vertical beam 20, the middle of the upper vertical beam 19 and the lower vertical beam 20 is connected by a vertical beam connecting plate 21 in a hanging way, the tail end of the lower vertical beam is provided with a baffle 22, and the hanging connection is convenient for replacing and overhauling the baffle 22; the baffles 22 are two symmetrically arranged, the galvanized sheet strips pass between the two baffles, and the main function of the baffles is to prevent an air curtain sprayed by an air knife from moving along with the sheet strips so that the thickness of a zinc layer at the edge of the sheet strips is equal to that of the middle of the sheet strips, and the main function of the baffles is to reduce noise.
The collision avoidance system includes: roller 17 and roller support 18.
The installation, movement, conversion program and process of each system are that the swing and tremble signals generated in the high-speed running of the zinc plate collected by the photoelectric sensor 4 are converted into electric signals through the electric control box, the electric signals drive the servo motor to run positively and negatively, and the baffle is finally ensured to be matched and consistent with the light and the electric signals through a mechanical running mode, a movable sliding table system and a movable beam system, so that the baffle can synchronously move along with the left and right swing and front and back tremble generated in the running of the zinc plate, the width consistency of the zinc surface of the zinc plate is effectively ensured, the zinc surface is smooth, and the edge quality of the zinc plate is improved.
The air knife baffle cross beam system belongs to a baffle framework structure, and the whole systems and components are symmetrically arranged at the relevant positions of the cross beam respectively, so that the orderly operation of the systems is ensured.
The collision preventing system belongs to the protection device of the photoelectric controller, the movable slipway, the movable beam and other systems, the zinc plate can swing and vibrate suddenly at a speed of about 160 m/min during production and operation, the related parts of the baffle, especially the photoelectric controller, can be directly passed through the middle concave part during operation, and collision can be generated at any time, and the collision preventing system is arranged below the photoelectric controller to protect the photoelectric controller and other parts.
Claims (4)
1. An air knife baffle for producing a photoelectric self-control hot dip galvanized plate, which is characterized in that: the system comprises a beam system, a photoelectric control system, a movable slipway system and a movable beam system; the beam system includes: the transverse beam (1), the transverse beam head (2) and the transverse beam manual adjusting wheel (3), wherein the transverse beam head (2) is respectively arranged at two ends of the transverse beam, and the transverse beam manual adjusting wheel (3) is arranged on the transverse beam head (2); the length of the cross beam is consistent with that of the girder of the air knife, the cross beam and the girder of the air knife are jointly placed on the air knife lifter, and the cross beam is positioned between the girders of the two air knives; two sets of identical photoelectric control systems, a movable slipway system, a movable beam system and an anti-collision system are symmetrically arranged on the cross beam;
the movable sliding table system comprises a coupler (9), a screw (10), a screw nut (11), a guide rail (12), a guide rail sliding block (13) and a sliding table plate (16), wherein the coupler (9) is arranged at the end part of the screw nut (10), the sliding table plate (16) is of a right-angle plate structure and is composed of a vertical plate and a transverse plate which are perpendicular to each other, the vertical plate of the sliding table plate (16) is vertically arranged with the transverse beam (1), the screw nut (11) is arranged in parallel with the transverse beam (1) and matched with the screw nut (11), the screw nut (11) is fixed at the right angle of the sliding table plate (16), the inner side of the screw nut (11) is fixed on the vertical plate, and the upper side of the screw nut (11) is fixed on the transverse plate; the guide rail (12) is arranged in parallel with the cross beam (1) and is fixed on the cross beam (1), a guide rail sliding block (13) matched with the guide rail (12) is arranged on the cross plate of the sliding table plate (16), and the sliding table plate (16) and the guide rail sliding block (13) synchronously move along the guide rail (12) when the screw nut (11) moves;
the movable beam system comprises an upper vertical beam (19), a lower vertical beam (20), a vertical beam connecting plate (21), a baffle plate (22), a movable beam balance plate (23), a balance plate guide rail (24) and a balance plate sliding block (25), wherein one end of the movable beam balance plate (23) is fixedly connected to the lower end of a sliding table plate (16) of the movable beam system, the other end of the movable beam balance plate is connected with the upper vertical beam (19), the upper vertical beam (19) and the lower vertical beam (20) are vertically arranged with a cross beam (1), the upper vertical beam (19) and the lower vertical beam (20) are connected together through the vertical beam connecting plate (21), and the baffle plate (22) is arranged at the bottom of the lower vertical beam (20); a balance plate guide rail (24) which is arranged in parallel with the guide rail (12) is fixedly arranged on the cross beam, a balance plate slide block (25) is matched with the balance plate guide rail (24), the balance plate slide block (25) and the movable beam balance plate (23) are fixed together, the slide table plate (16) moves along the guide rail (12), the movable beam balance plate (23) and the balance plate slide block (25) move along the balance plate guide rail (24), and meanwhile, the upper vertical beam (19), the lower vertical beam (20) and the baffle plate (22) synchronously move;
the photoelectric control system comprises a photoelectric sensor (4), a servo motor (7) and a sensor support (8), wherein the servo motor (7) is arranged on the beam head (2), and an output shaft of the servo motor (7) is connected with a lead screw (10) through a coupler (9); the top end of the upper vertical beam (19) is provided with an inductor support (8), and the photoelectric inductor (4) is arranged on the inductor support (8);
two sets of same anti-collision systems are symmetrically arranged on the cross beam in a left-right mode, each anti-collision system is composed of a roller (17) and a roller support (18), the roller (17) is arranged on the roller support (18), and the roller support (18) is arranged at the top end of the upper vertical beam (19) and is positioned below the sensor support (8);
the lower vertical beam (20) is connected with the vertical beam connecting plate (21) through a hook (29), a hanging post (28) is arranged on the lower vertical beam (20), the hook (29) is arranged on the vertical beam connecting plate (21), and the hook is hung on the hanging post to connect the lower vertical beam (20) with the vertical beam connecting plate (21);
and two ends of the guide rail (12) are respectively provided with a guide rail limit switch (14) and a guide rail travel switch (15).
2. The air knife baffle for producing the photoelectric self-control hot dip galvanized sheet according to claim 1, wherein the air knife baffle is characterized in that: the number of the photoelectric sensors (4) is two, the photoelectric sensors are symmetrically arranged above the two upper vertical beams, bosses (26) are arranged at two ends of each photoelectric sensor, a recess (27) is arranged between the two bosses (26), a groove structure is integrally formed, and photoelectric probes of the photoelectric sensors are arranged in the groove structure; the two photoelectric sensors are oppositely arranged, the two groove structures are opposite, and the two edges of the zinc plate respectively pass through the groove structures of the two photoelectric sensors.
3. The use method of the air knife baffle for producing the photoelectric self-control hot dip galvanized sheet, which adopts the air knife baffle as claimed in claim 1 or 2, is characterized in that:
the photoelectric sensor of the photoelectric control system collects forward and backward swinging and left and right vibration conditions generated by a zinc plate running at high speed in zinc plate production, converts optical signals into electric signals, drives a servo motor to run forward or backward through a PLC, and drives a sliding table plate (16), a movable beam balance plate (23) and a baffle plate (22) to move synchronously; during production, the interval between the two baffles and the frequency of the photoelectric signal matched with the interval are set according to the width of the zinc plate; when the zinc plate runs at high speed to generate longitudinal and transverse swinging and left and right vibration, the distance between the baffles is automatically adjusted by the signals received by the photoelectric sensor, so that the baffles are always kept within a set distance from the zinc plate.
4. The method for using the air knife baffle for producing the photoelectric self-control hot dip galvanized sheet, according to claim 3, wherein the method comprises the following steps: after the servo motor drives the moving sliding table screw rod to operate, the screw rod nut on the screw rod can operate forwards and backwards along with the forward and backward operation of the screw rod, the screw rod nut is connected with the guide rail slide block, the lower end of the guide rail slide block is tightly buckled on the guide rail which is arranged in parallel and in accordance with the baffle girder, the upper end of the guide rail is fixedly connected with the upper end of the moving sliding table, the slide block correspondingly drives the sliding table plate to synchronously move forwards and backwards during the forward and backward movement of the slide block, the sliding table plate forms a right-angle plate structure, the lower side of the upper end of the sliding table plate is transversely provided with the slide block, one end of the slide block is arranged on the inner side of a right-angle plate riser, the lower end of the riser is connected with the moving girder balance plate, and the slide block drives the sliding table plate to synchronously move along with the front and back movement of the slide block.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911000390.1A CN110565038B (en) | 2019-10-21 | 2019-10-21 | Air knife baffle plate for photoelectric self-control type hot dip galvanized sheet production and use method |
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| CN201911000390.1A CN110565038B (en) | 2019-10-21 | 2019-10-21 | Air knife baffle plate for photoelectric self-control type hot dip galvanized sheet production and use method |
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| CN115305429B (en) * | 2021-05-08 | 2023-12-05 | 上海梅山钢铁股份有限公司 | Reference correction method for baffles on two sides of strip steel |
| CN115287569B (en) * | 2022-08-15 | 2023-11-10 | 唐山市佳冠实业有限公司 | Adjustable air knife baffle |
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