A continuous hot-dip galvanizing equipment with controllable galvanized layer thickness for hot-rolled steel strip

Abstract

The present invention provides a continuous hot-dip galvanizing equipment with controllable galvanized layer thickness of a hot-rolled steel strip, relates to the technical field of hot-rolled steel strip production, and comprises: a hot-dip galvanizing unit, a pressing unit, a driving unit and a control unit; the pressing unit is installed on a hot-dip galvanizing pool; the driving unit is provided with two groups, and the two groups of driving units are installed on the left and right sides of the hot-dip galvanizing pool; the hot-rolled steel strip is installed on the hot-dip galvanizing unit, the pressing unit and the two groups of driving units; the control unit is installed on the front side of the hot-dip galvanizing pool; the present invention provides a buzzer when one of the switches is in a pressed state, and can automatically remind the staff that the length of the hot-rolled steel strip in the hot-dip galvanizing pool changes, so that the staff can replace the driving accessories in time; the problem of generally lacking a driving detection structure, when the friction between the driving roller and the hot-rolled steel strip is small, the staff cannot find it in time, which is not conducive to the timely replacement of the driving roller, and affects the driving effect of the hot-rolled steel strip.

Description

Technical Field

[0001] The invention belongs to the technical field of hot-rolled steel strip production, and more specifically, particularly relates to a continuous hot-dip galvanizing device with controllable galvanized layer thickness of the hot-rolled steel strip. Background Art

[0002] Hot-rolled steel strip is rolled at high temperature and has good plasticity and ductility, making it suitable for the manufacture of products of various shapes. Hot-rolled steel strip needs to be hot-dip galvanized during production, which can significantly improve the corrosion resistance of the hot-rolled steel strip and enhance the surface protection of the hot-rolled steel strip, thereby increasing the service life of the hot-rolled steel strip.

[0003] The hot-dip galvanizing equipment currently used still has the following problems: 1. Generally, there is a lack of drive detection structure. When the friction between the drive roller and the hot-rolled steel strip is small, the staff cannot find it in time, which is not conducive to the timely replacement of the drive roller and affects the driving effect of the hot-rolled steel strip; 2. When workers get close to the hot-rolled steel strip during the hot-dip galvanizing process, the equipment cannot stop working automatically, and safety accidents are prone to occur during work. Summary of the invention

[0004] The disclosed embodiment relates to a continuous hot-dip galvanizing equipment with controllable thickness of the galvanized layer of a hot-rolled steel strip, which comprises a pressing unit, a driving unit and a control unit; when one of the switches is in a pressed state, a buzzer operates, which can automatically remind the staff that the length of the hot-rolled steel strip in the hot-dip galvanizing pool changes, so that the staff can replace the driving accessories in time; the controller controls two linear electric cylinders and two servo motors to stop working, so as to avoid safety accidents when the staff are close to the hot-rolled steel strip; the problem of being unfavorable for the timely replacement of the driving roller and the easy occurrence of safety accidents during operation is solved.

[0005] In a first aspect of the present disclosure, a continuous hot-dip galvanizing equipment with controllable galvanized layer thickness of hot-rolled steel strip is provided, comprising: a hot-dip galvanizing unit, a pressing unit, a driving unit and a control unit; The hot-dip galvanizing unit comprises: a hot-dip galvanizing pool and a guide roller; two guide rollers are provided, and the two guide rollers are rotatably mounted on the hot-dip galvanizing pool; a controller is fixedly mounted on the front side of the hot-dip galvanizing pool; the pressing unit is mounted on the hot-dip galvanizing pool; There are two groups of driving units, and the two groups of driving units are installed on the left and right sides of the hot-dip galvanizing pool; hot-rolled steel strips are installed on the hot-dip galvanizing unit, the pressing unit and the two groups of driving units; the control unit is installed on the front side of the hot-dip galvanizing pool.

[0006] In at least some embodiments, the pressing unit includes: a mounting plate, a movable detection frame and a pressing positioning roller; the mounting plate is fixedly mounted on the top of the hot-dip galvanizing pool by screws; the movable detection frame is slidably mounted on the mounting plate; the pressing positioning roller is slidably mounted on the hot-dip galvanizing pool, and the pressing positioning roller is also rotatably connected to the movable detection frame.

[0007] In at least some embodiments, the pressing unit also includes: a limit block and a lithium battery; there are two limit blocks in total, and the two limit blocks are fixedly installed on the outside of the movable detection frame, and the two limit blocks are located on the upper and lower sides of the mounting plate; the lithium battery is fixedly installed on the top of the mounting plate.

[0008] In at least some embodiments, the pressing unit also includes: a buzzer and a switch; the buzzer is fixedly mounted on the top of the mounting plate, and the buzzer is also electrically connected to the lithium battery; there are two switches in total, and the two switches are fixedly mounted inside the two limit blocks, and the two switches are also electrically connected to the lithium battery and the buzzer.

[0009] In at least some embodiments, the driving unit includes: a rectangular guide sleeve and a movable mounting frame; there are two rectangular guide sleeves in total, and the two rectangular guide sleeves are fixedly mounted on the hot-dip galvanizing pool; the movable mounting frame is slidably mounted on the two rectangular guide sleeves.

[0010] In at least some embodiments, the driving unit further includes: a linear electric cylinder and a friction drive roller; the linear electric cylinder is fixedly mounted on the hot-dip galvanizing pool, and the output shaft of the linear electric cylinder is fixedly connected to the movable mounting frame, and the linear electric cylinder is also electrically connected to the controller; there are two friction drive rollers, and the two friction drive rollers are rotatably mounted on the movable mounting frame, and the friction force between the two friction drive rollers and the hot-rolled steel strip is greater than the gravity of the pressing unit.

[0011] In at least some embodiments, the driving unit also includes: a connecting gear and a servo motor; there are two connecting gears in total, and the two connecting gears are fixedly mounted on the rear ends of the two friction drive rollers, and the two connecting gears are meshingly connected; the servo motor is fixedly mounted on the front side of the movable mounting frame by screws, and the output shaft of the servo motor is connected to the upper friction drive roller through a coupling, and the servo motor is also electrically connected to the controller.

[0012] In at least some embodiments, the control unit includes: a U-shaped connecting seat, a circular guide rod and a movable connecting block; the U-shaped connecting seat is fixedly installed on the front side of the hot-dip galvanizing pool; there are two circular guide rods, and the two circular guide rods are fixedly installed on the U-shaped connecting seat; the movable connecting block is slidably installed on the outside of the two circular guide rods.

[0013] In at least some embodiments, the control unit also includes: a control frame, a support base plate and a return spring; the control frame is rotatably mounted on the movable connection block via a rotating shaft, and two grooves are provided on the control frame; the support base plate is fixedly mounted on the bottom of the movable connection block via screws, and the front end of the support base plate is in contact with the control frame; there are two return springs in total, and the two return springs are sleeved on the outside of the two circular guide rods, and the two return springs are located below the movable connection block.

[0014] In at least some embodiments, the control unit further includes: a first control button, a second control button and a control panel; the first control button is fixedly mounted inside the movable connection block, and the first control button is also electrically connected to the controller, and the first control button is in a pressed state when the top of the movable connection block contacts the U-shaped connection seat; the second control button is fixedly mounted inside the control frame, and the second control button is also electrically connected to the controller, and the second control button is in a pressed state when the bottom of the control frame is flush with the bottom of the hot-dip galvanizing pool; the control panel is fixedly mounted on the control frame, and the control panel is also electrically connected to the controller.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The setting of the pressing positioning roller of the present invention has a pressing effect on the hot-rolled steel strip, ensuring that the hot-rolled steel strip can fully contact with the liquid in the hot-dip galvanizing pool; when one of the switches is in a pressed state, the buzzer works, which can automatically remind the staff that the length of the hot-rolled steel strip in the hot-dip galvanizing pool changes, so that the staff can replace the driving accessories in time.

[0016] 2. In the present invention, when the two servo motors are working, the two friction drive rollers on the top rotate simultaneously, ensuring that the driving speeds on both sides are the same, ensuring that the time for the hot-rolled steel strip to move in the hot-dip galvanizing pool is consistent, realizing continuous hot-dip galvanizing of the hot-rolled steel strip, and also ensuring that the thickness of the galvanized layer is the same; when the two servo motors are working, the four friction drive rollers rotate simultaneously; In addition, when the friction between the two left friction drive rollers and the hot-rolled steel strip is less than the gravity of the pressing unit, the length of the hot-rolled steel strip moved by the two left friction drive rollers is less than the length of the hot-rolled steel strip moved by the two right friction drive rollers, so that the length of the hot-rolled steel strip in the hot-dip galvanizing pool becomes shorter; when the friction between the two right friction drive rollers and the hot-rolled steel strip is less than the gravity of the pressing unit, the length of the hot-rolled steel strip moved by the two right friction drive rollers is less than the length of the hot-rolled steel strip moved by the two left friction drive rollers, so that the length of the hot-rolled steel strip in the hot-dip galvanizing pool becomes longer; In addition, when the friction force between the two friction drive rollers on the left and the hot-rolled steel strip is less than the gravity of the pressing unit, the staff can retract a part of the output shaft of the left or right linear electric cylinder to reset the pressing positioning roller to its original position; when the friction force between the two friction drive rollers on the right and the hot-rolled steel strip is less than the gravity of the pressing unit, the staff can extend a part of the output shaft of the left or right linear electric cylinder to reset the pressing positioning roller to its original position; to avoid changes in the length of the hot-rolled steel strip in the hot-dip galvanizing pool due to mispulling or other reasons. When the staff resets the pressing positioning roller to its original position and the length of the hot-rolled steel strip in the hot-dip galvanizing pool changes again, it means that the friction drive roller in the corresponding direction is severely worn, which facilitates the staff to replace the friction drive roller in time and ensures the normal driving effect of the hot-rolled steel strip.

[0017] 3. The two grooves of the present invention are arranged so that the feet of the staff can be placed in the two grooves. When the equipment is not in use, the staff can flip the control frame to the top of the hot-dip galvanizing pool, which reduces the space occupied by the equipment and has a better effect when transporting the equipment and cleaning the workshop floor. In addition, when the worker's feet are in contact with the two grooves, the control frame is automatically moved downward under the action of the worker's weight, and the second control button is in a pressed state when the bottom of the control frame is flush with the bottom of the hot-dip galvanizing pool. At this time, the worker can control the two linear electric cylinders and two servo motors through the control panel; when the worker's feet are separated from the two grooves, the movable connecting block automatically moves upward under the action of two return springs, and the first control button is in a pressed state when the top of the movable connecting block is in contact with the U-shaped connecting seat. At this time, the controller controls the two linear electric cylinders and two servo motors to stop working, thereby avoiding safety accidents when the worker approaches the hot-rolled steel strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0019] The drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention.

[0020] In the attached picture: Figure 1 A schematic diagram of the three-dimensional structure of the present invention is shown; Figure 2 The present invention is shown Figure 1 A schematic diagram of the structure from a rear bottom perspective; Figure 3 The schematic diagram of the structure of the hot-dip galvanizing unit and the pressing unit of the present invention is shown; Figure 4 The present invention is shown Figure 1Schematic diagram of the longitudinal central section structure; Figure 5 The present invention is shown Figure 4 A schematic diagram of the local enlarged structure of the middle A area; Figure 6 A schematic structural diagram of a drive unit of the present invention is shown; Figure 7 The present invention is shown Figure 1 Schematic diagram of the transverse central section structure; Figure 8 The present invention is shown Figure 2 A schematic diagram of the local enlarged structure of the middle B area; Fig. 9 A schematic diagram of the structure of the control unit of the present invention is shown; Fig.10 The present invention is shown Figure 4 Schematic diagram of the local enlarged structure of the C area in the middle.

[0021] List of reference numerals: 100. hot-dip galvanizing unit; 101. hot-dip galvanizing pool; 102. guide roller; 200, controller; 300, pressing unit; 301, mounting plate; 302, movable detection frame; 303, pressing positioning roller; 304, limit stopper; 305, lithium battery; 306, buzzer; 307, switch; 400, driving unit; 401, rectangular guide sleeve; 402, movable mounting frame; 403, linear electric cylinder; 404, friction driving roller; 405, connecting gear; 406, servo motor; 500, hot rolled steel strip; 600, control unit; 601, U-shaped connecting seat; 602, circular guide rod; 603, movable connecting block; 604, control frame; 6041, groove; 605, supporting base plate; 606, return spring; 607, first control button; 608, second control button; 609, control panel. DETAILED DESCRIPTION

[0022] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0023] Example: Please refer to Figures 1 to 10As shown: The present invention provides a continuous hot-dip galvanizing equipment with controllable galvanized layer thickness of hot-rolled steel strip, comprising: a hot-dip galvanizing unit 100, a pressing unit 300, a driving unit 400 and a control unit 600; the hot-dip galvanizing unit 100 comprises: a hot-dip galvanizing pool 101 and a guide roller 102; there are two guide rollers 102, and the two guide rollers 102 are rotatably mounted on the hot-dip galvanizing pool 101; a controller 200 is fixedly mounted on the front side of the hot-dip galvanizing pool 101; the pressing unit 300 is mounted on the hot-dip galvanizing pool 101; there are two groups of driving units 400, and the two groups of driving units 400 are mounted on the left and right sides of the hot-dip galvanizing pool 101; a hot-rolled steel strip 500 is mounted on the hot-dip galvanizing unit 100, the pressing unit 300 and the two groups of driving units 400; the control unit 600 is mounted on the front side of the hot-dip galvanizing pool 101.

[0024] In the present disclosure, Figures 3 to 5 As shown, the pressing unit 300 includes: a mounting plate 301, a movable detection frame 302 and a pressing positioning roller 303; the mounting plate 301 is fixedly mounted on the top of the hot-dip galvanizing pool 101 by screws; the movable detection frame 302 is slidably mounted on the mounting plate 301; the pressing positioning roller 303 is slidably mounted on the hot-dip galvanizing pool 101, and the pressing positioning roller 303 is also rotatably connected to the movable detection frame 302; the pressing unit 300 also includes: a limit stopper 304 and a lithium battery 305; there are two limit stops 304, and the two limit stops 304 are fixedly mounted on the movable detection frame 302. The detection frame 302 is outside, and two limit blocks 304 are located on the upper and lower sides of the mounting plate 301; the lithium battery 305 is fixedly installed on the top of the mounting plate 301; the pressing unit 300 also includes: a buzzer 306 and a switch 307; the buzzer 306 is fixedly installed on the top of the mounting plate 301, and the buzzer 306 is also electrically connected to the lithium battery 305; there are two switches 307, and the two switches 307 are fixedly installed inside the two limit blocks 304, and the two switches 307 are also electrically connected to the lithium battery 305 and the buzzer 306; Its specific functions are as follows: since the movable detection frame 302 is slidably mounted on the mounting plate 301, and the pressing and positioning roller 303 is slidably mounted on the hot-dip galvanizing pool 101, and the pressing and positioning roller 303 is also rotatably connected to the movable detection frame 302, the hot-rolled steel strip 500 is pressed to ensure that the hot-rolled steel strip 500 can fully contact the liquid in the hot-dip galvanizing pool 101; and since the two limit blocks 304 are fixedly mounted on the outside of the movable detection frame 302, and the two switches 307 are fixedly mounted on the inside of the two limit blocks 304, and the two switches 307 are also electrically connected to the lithium battery 305 and the buzzer 306, when one of the switches 307 is in a pressed state, the buzzer 306 works, which can automatically remind the staff that the length of the hot-rolled steel strip 500 in the hot-dip galvanizing pool 101 has changed, so that the staff can replace the driving accessories in time.

[0025] In the present disclosure, Figures 6 to 8 As shown, the driving unit 400 includes: a rectangular guide sleeve 401 and a movable mounting frame 402; there are two rectangular guide sleeves 401, and the two rectangular guide sleeves 401 are fixedly mounted on the hot-dip galvanizing pool 101; the movable mounting frame 402 is slidably mounted on the two rectangular guide sleeves 401; the driving unit 400 also includes: a linear electric cylinder 403 and a friction drive roller 404; the linear electric cylinder 403 is fixedly mounted on the hot-dip galvanizing pool 101, and the output shaft of the linear electric cylinder 403 is fixedly connected to the movable mounting frame 402, and the linear electric cylinder 403 is also electrically connected to the controller 200; there are two friction drive rollers 404, and the two friction drive rollers 404 rotate The driving unit 400 is mounted on the movable mounting frame 402, and the friction force between the two friction drive rollers 404 and the hot-rolled steel strip 500 is greater than the gravity of the pressing unit 300; the driving unit 400 also includes: a connecting gear 405 and a servo motor 406; there are two connecting gears 405, and the two connecting gears 405 are fixedly mounted on the rear ends of the two friction drive rollers 404, and the two connecting gears 405 are meshed and connected; the servo motor 406 is fixedly mounted on the front side of the movable mounting frame 402 by screws, and the output shaft of the servo motor 406 is connected to the upper friction drive roller 404 through a coupling, and the servo motor 406 is also electrically connected to the controller 200; Its specific functions are as follows: because the four friction drive rollers 404 are rotatably mounted on the two movable mounting frames 402, and the friction force between the two friction drive rollers 404 and the hot-rolled steel strip 500 is greater than the gravity of the pressing unit 300, and the output shafts of the two servo motors 406 are connected to the two friction drive rollers 404 above through the coupling, when the two servo motors 406 are working, the two friction drive rollers 404 above rotate at the same time, ensuring that the driving speeds on both sides are the same, ensuring that the hot-rolled steel strip 500 moves in the hot-dip galvanizing pool 101 at the same time, realizing continuous hot-dip galvanizing of the hot-rolled steel strip 500, and also ensuring that the thickness of the galvanized layer is the same; and because the four connecting gears 405 are fixedly mounted on the rear ends of the four friction drive rollers 404, and the two connecting gears 405 on the left are meshed and connected, and the two connecting gears 405 on the right are meshed and connected, when the two servo motors 406 are working, the four friction drive rollers 404 rotate at the same time; In addition, when the friction force between the two left friction driving rollers 404 and the hot-rolled steel strip 500 is less than the gravity of the pressing unit 300, the length of the hot-rolled steel strip 500 moved by the two left friction driving rollers 404 is less than the length of the hot-rolled steel strip 500 moved by the two right friction driving rollers 404, so that the length of the hot-rolled steel strip 500 in the hot-dip galvanizing pool 101 becomes shorter; when the friction force between the two right friction driving rollers 404 and the hot-rolled steel strip 500 is less than the gravity of the pressing unit 300, the length of the hot-rolled steel strip 500 moved by the two right friction driving rollers 404 is less than the length of the hot-rolled steel strip 500 moved by the two left friction driving rollers 404, so that the length of the hot-rolled steel strip 500 in the hot-dip galvanizing pool 101 becomes longer; In addition, because the two linear electric cylinders 403 are fixedly mounted on the hot-dip galvanizing pool 101, and the output shafts of the two linear electric cylinders 403 are fixedly connected to the two movable mounting frames 402, when the friction between the two friction drive rollers 404 on the left and the hot-rolled steel strip 500 is less than the gravity of the pressing unit 300, the staff can retract a part of the output shaft of the left or right linear electric cylinder 403 to reset the pressing positioning roller 303 to its original position; when the friction between the two friction drive rollers 404 on the right and the hot-rolled steel strip 500 is less than the gravity of the pressing unit 300, the staff can retract a part of the output shaft of the left or right linear electric cylinder 403 to reset the pressing positioning roller 303 to its original position. The output shaft of the left or right linear electric cylinder 403 can be partially extended to reset the pressing and positioning roller 303 to its original position, thereby preventing the hot-rolled steel strip 500 from changing in length in the hot-dip galvanizing pool 101 due to mis-pulling or other reasons. When the staff resets the pressing and positioning roller 303 to its original position, if the length of the hot-rolled steel strip 500 in the hot-dip galvanizing pool 101 changes again, it indicates that the friction drive roller 404 in the corresponding direction is severely worn, so that the staff can replace the friction drive roller 404 in time, thereby ensuring the normal driving effect of the hot-rolled steel strip 500.

[0026] Among them, the staff can install cleaning equipment between the hot-dip galvanizing pool 101 and the two friction drive rollers 404 on the left to facilitate the pre-removal of grease and dirt on the surface of the hot-rolled steel strip 500; and can also install cooling equipment between the hot-dip galvanizing pool 101 and the two friction drive rollers 404 on the right to facilitate cooling the hot-rolled steel strip 500 after hot-dip galvanizing.

[0027] In the present disclosure, Fig. 9 and Fig.10As shown, the control unit 600 includes: a U-shaped connection seat 601, a circular guide rod 602 and a movable connection block 603; the U-shaped connection seat 601 is fixedly installed on the front side of the hot-dip galvanizing pool 101; there are two circular guide rods 602, and the two circular guide rods 602 are fixedly installed on the U-shaped connection seat 601; the movable connection block 603 is slidably installed on the outside of the two circular guide rods 602; the control unit 600 also includes: a control frame 604, a support base plate 605 and a return spring 606; the control frame 604 is rotatably installed on the movable connection block 603 through a rotating shaft, and two grooves 6041 are opened on the control frame 604; the support base plate 605 is fixedly installed on the bottom of the movable connection block 603 by screws, and the front end of the support base plate 605 is in contact with the control frame 604; there are two return springs 606, and the two return springs 606 are sleeved on the two circular The guide rod 602 is outside, and two return springs 606 are located below the movable connection block 603; the control unit 600 also includes: a first control button 607, a second control button 608 and a control panel 609; the first control button 607 is fixedly installed inside the movable connection block 603, and the first control button 607 is also electrically connected to the controller 200, and the first control button 607 is in a pressed state when the top of the movable connection block 603 contacts the U-shaped connection seat 601; the second control button 608 is fixedly installed inside the control frame 604, and the second control button 608 is also electrically connected to the controller 200, and the second control button 608 is in a pressed state when the bottom of the control frame 604 is flush with the bottom of the hot-dip galvanizing pool 101; the control panel 609 is fixedly installed on the control frame 604, and the control panel 609 is also electrically connected to the controller 200; Its specific functions are as follows: because two grooves 6041 are provided on the control frame 604, it is convenient for the staff to place their feet in the two grooves 6041; because the control frame 604 is rotatably mounted on the movable connection block 603 through a rotating shaft, and the support base plate 605 is fixedly mounted on the bottom of the movable connection block 603 by screws, and the front end of the support base plate 605 is in contact with the control frame 604, when the equipment is not in use, the staff can flip the control frame 604 to the top of the hot-dip galvanizing pool 101, thereby reducing the space occupied by the equipment and having a better effect during equipment transportation and workshop floor cleaning; In addition, because the second control button 608 is fixedly installed inside the control frame 604, and the second control button 608 is also electrically connected to the controller 200, when the worker's feet are in contact with the two grooves 6041, the control frame 604 is automatically moved downward under the weight of the worker. When the bottom of the control frame 604 is flush with the bottom of the hot-dip galvanizing pool 101, the second control button 608 is in a pressed state. At this time, the worker can control the two linear electric cylinders 403 and the two servo motors 406 to work through the control panel 609; and because the movable connecting block 603 is slidably installed on the two circular guide rods 6 02, and two return springs 606 are sleeved on the outside of the two circular guide rods 602, and the two return springs 606 are located below the movable connection block 603. When the staff's feet are separated from the two grooves 6041, the movable connection block 603 automatically moves upward under the action of the two return springs 606. When the top of the movable connection block 603 contacts with the U-shaped connection seat 601, the first control button 607 is in a pressed state. At this time, the controller 200 controls the two linear electric cylinders 403 and the two servo motors 406 to stop working, so as to avoid safety accidents when the staff are close to the hot-rolled steel strip 500.

[0028] The specific usage and function of this embodiment are as follows: When the present invention is used, the staff first installs the hot-dip galvanizing pool 101 at a suitable position in the workshop by means of bolts, and then installs the hot-rolled steel strip 500 between the four friction drive rollers 404. It is also necessary to ensure that the hot-rolled steel strip 500 is in contact with the two guide rollers 102 and the pressing and positioning roller 303. Then the staff places their feet in the two grooves 6041. When the feet of the staff are in contact with the two grooves 6041, the control frame 604 is automatically moved downward under the action of the staff's weight. When the bottom of the control frame 604 is flush with the bottom of the hot-dip galvanizing pool 101, the second control button 608 is in a pressed state. At this time, the staff can The two linear electric cylinders 403 and the two servo motors 406 are controlled to work by the control panel 609; when the two servo motors 406 are working, the two friction drive rollers 404 on the top rotate at the same time, ensuring that the driving speeds on both sides are the same, ensuring that the hot-rolled steel strip 500 moves in the hot-dip galvanizing pool 101 at the same time, realizing continuous hot-dip galvanizing of the hot-rolled steel strip 500, and ensuring that the thickness of the galvanized layer is the same; when the two servo motors 406 are working, the four friction drive rollers 404 rotate at the same time under the action of the four connecting gears 405; when one of the switches 307 is in a pressed state, the buzzer 306 works, which can automatically remind the staff that they are in the hot-dip galvanizing pool 101 changes in length, which is convenient for the staff to replace the driving accessories in time; when the friction between the two friction driving rollers 404 on the left and the hot-rolled steel strip 500 is less than the gravity of the pressing unit 300, the length of the hot-rolled steel strip 500 moved by the two friction driving rollers 404 on the left is less than the length of the hot-rolled steel strip 500 moved by the two friction driving rollers 404 on the right, so that the length of the hot-rolled steel strip 500 in the hot-dip galvanizing pool 101 becomes shorter; when the friction between the two friction driving rollers 404 on the right and the hot-rolled steel strip 500 is less than the gravity of the pressing unit 300, the length of the hot-rolled steel strip 500 moved by the two friction driving rollers 404 on the right is less than the length of the hot-rolled steel strip 500 moved by the two friction driving rollers 404 on the left The friction driving rollers 404 move the length of the hot-rolled steel strip 500, so that the length of the hot-rolled steel strip 500 in the hot-dip galvanizing pool 101 becomes longer; when the friction force between the two friction driving rollers 404 on the left and the hot-rolled steel strip 500 is less than the gravity of the pressing unit 300, the staff can shrink a part of the output shaft of the left or right linear electric cylinder 403 to reset the pressing and positioning roller 303 to the original position; when the friction force between the two friction driving rollers 404 on the right and the hot-rolled steel strip 500 is less than the gravity of the pressing unit 300, the staff can extend a part of the output shaft of the left or right linear electric cylinder 403 to reset the pressing and positioning roller 303 to the original position;To prevent the hot-rolled steel strip 500 from changing in length in the hot-dip galvanizing pool 101 due to mis-pulling or other reasons, when the staff member resets the pressing and positioning roller 303 to the original position, if the length of the hot-rolled steel strip 500 in the hot-dip galvanizing pool 101 changes again, it indicates that the friction drive roller 404 in the corresponding direction is seriously worn, so that the staff member can replace the friction drive roller 404 in time, thereby ensuring the normal driving effect of the hot-rolled steel strip 500; when the staff member's feet are separated from the two grooves 6041, the movable connection block 603 is between the two reset springs 606. , the first control button 607 is in a pressed state when the top of the movable connection block 603 contacts the U-shaped connection seat 601. At this time, the controller 200 controls the two linear electric cylinders 403 and the two servo motors 406 to stop working, so as to avoid safety accidents when the staff are close to the hot-rolled steel strip 500. When the equipment is not in use, the staff can flip the control frame 604 to the top of the hot-dip galvanizing pool 101, which reduces the space occupied by the equipment and has a better effect when transporting the equipment and cleaning the workshop floor. ;

[0029] In this article, there are a few points to note: 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0030] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0031] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A continuous hot-dip galvanizing equipment with controllable galvanized layer thickness of hot-rolled steel strip, comprising: A hot-dip galvanizing unit (100), a pressing unit (300), a driving unit (400) and a control unit (600); The hot-dip galvanizing unit (100) comprises: a hot-dip galvanizing pool (101) and a guide roller (102); two guide rollers (102) are provided, and the two guide rollers (102) are rotatably mounted on the hot-dip galvanizing pool (101); a controller (200) is fixedly mounted on the front side of the hot-dip galvanizing pool (101); the pressing unit (300) is mounted on the hot-dip galvanizing pool (101); The drive units (400) are provided with two groups in total, and the two groups of drive units (400) are installed on the left and right sides of the hot-dip galvanizing pool (101); hot-rolled steel strips (500) are installed on the hot-dip galvanizing unit (100), the pressing unit (300) and the two groups of drive units (400); and the control unit (600) is installed on the front side of the hot-dip galvanizing pool (101).

2. The continuous hot-dip galvanizing equipment with controllable galvanized layer thickness of hot-rolled steel strip according to claim 1, characterized in that: The pressing unit (300) comprises: a mounting plate (301), a movable detection frame (302) and a pressing positioning roller (303); the mounting plate (301) is fixedly mounted on the top of the hot-dip galvanizing pool (101) by means of screws; the movable detection frame (302) is slidably mounted on the mounting plate (301); the pressing positioning roller (303) is slidably mounted on the hot-dip galvanizing pool (101), and the pressing positioning roller (303) is also rotatably connected to the movable detection frame (302).

3. The continuous hot-dip galvanizing equipment with controllable galvanized layer thickness of hot-rolled steel strip according to claim 2, characterized in that: The pressing unit (300) further comprises: a limit stopper (304) and a lithium battery (305); two limit stoppers (304) are provided, and the two limit stoppers (304) are fixedly mounted on the outside of the movable detection frame (302), and the two limit stoppers (304) are located on the upper and lower sides of the mounting plate (301); and the lithium battery (305) is fixedly mounted on the top of the mounting plate (301).

4. The continuous hot-dip galvanizing equipment with controllable galvanized layer thickness of hot-rolled steel strip according to claim 3, characterized in that: The pressing unit (300) further comprises: a buzzer (306) and a switch (307); the buzzer (306) is fixedly mounted on the top of the mounting plate (301), and the buzzer (306) is also electrically connected to the lithium battery (305); a total of two switches (307) are provided, and the two switches (307) are fixedly mounted inside the two limit blocks (304), and the two switches (307) are also electrically connected to the lithium battery (305) and the buzzer (306).

5. The continuous hot-dip galvanizing equipment with controllable galvanized layer thickness of hot-rolled steel strip according to claim 2, characterized in that: The driving unit (400) comprises: a rectangular guide sleeve (401) and a movable mounting frame (402); two rectangular guide sleeves (401) are provided, and the two rectangular guide sleeves (401) are fixedly mounted on the hot-dip galvanizing pool (101); and the movable mounting frame (402) is slidably mounted on the two rectangular guide sleeves (401).

6. The continuous hot-dip galvanizing equipment with controllable galvanized layer thickness of hot-rolled steel strip according to claim 5, characterized in that: The driving unit (400) further comprises: a linear electric cylinder (403) and a friction drive roller (404); the linear electric cylinder (403) is fixedly mounted on the hot-dip galvanizing pool (101), and the output shaft of the linear electric cylinder (403) is fixedly connected to the movable mounting frame (402), and the linear electric cylinder (403) is also electrically connected to the controller (200); there are two friction drive rollers (404) in total, and the two friction drive rollers (404) are rotatably mounted on the movable mounting frame (402), and the friction force between the two friction drive rollers (404) and the hot-rolled steel strip (500) is greater than the gravity of the pressing unit (300).

7. The continuous hot-dip galvanizing equipment with controllable galvanized layer thickness of hot-rolled steel strip according to claim 6, characterized in that: The driving unit (400) further comprises: a connecting gear (405) and a servo motor (406); there are two connecting gears (405) in total, and the two connecting gears (405) are fixedly mounted on the rear ends of the two friction drive rollers (404), and the two connecting gears (405) are meshingly connected; the servo motor (406) is fixedly mounted on the front side of the movable mounting frame (402) by means of screws, and the output shaft of the servo motor (406) is connected to the upper friction drive roller (404) by means of a coupling, and the servo motor (406) is also electrically connected to the controller (200).

8. The continuous hot-dip galvanizing equipment with controllable galvanized layer thickness of hot-rolled steel strip according to claim 1, characterized in that: The control unit (600) comprises: A U-shaped connection seat (601), a circular guide rod (602) and a movable connection block (603); the U-shaped connection seat (601) is fixedly mounted on the front side of the hot-dip galvanizing pool (101); two circular guide rods (602) are provided, and the two circular guide rods (602) are fixedly mounted on the U-shaped connection seat (601); and the movable connection block (603) is slidably mounted on the outside of the two circular guide rods (602).

9. The continuous hot-dip galvanizing equipment with controllable galvanized layer thickness of hot-rolled steel strip according to claim 8, characterized in that: The control unit (600) further comprises: a control frame (604), a support base plate (605) and a return spring (606); the control frame (604) is rotatably mounted on the movable connection block (603) via a rotating shaft, and two grooves (6041) are provided on the control frame (604); the support base plate (605) is fixedly mounted on the bottom of the movable connection block (603) via screws, and the front end of the support base plate (605) is in contact with the control frame (604); two return springs (606) are provided, and the two return springs (606) are sleeved on the outside of the two circular guide rods (602), and the two return springs (606) are located below the movable connection block (603).

10. The continuous hot-dip galvanizing equipment with controllable galvanized layer thickness of hot-rolled steel strip according to claim 9, characterized in that: The control unit (600) further comprises: a first control button (607), a second control button (608) and a control panel (609); the first control button (607) is fixedly mounted inside the movable connection block (603), and the first control button (607) is also electrically connected to the controller (200), and when the top of the movable connection block (603) contacts the U-shaped connection seat (601), the first control button (607) is in a pressed state; the second control button (608) is fixedly mounted inside the control frame (604), and the second control button (608) is also electrically connected to the controller (200), and when the bottom of the control frame (604) is flush with the bottom of the hot-dip galvanizing pool (101), the second control button (608) is in a pressed state; the control panel (609) is fixedly mounted on the control frame (604), and the control panel (609) is also electrically connected to the controller (200).

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