A strip steel air box cooling device

Abstract

The present application discloses a strip air box cooling device, which relates to the field of strip production equipment. It includes several pairs of air boxes, several groups of stabilizing rollers, and several groups of machine boxes that are connected and used for installing several pairs of air boxes. The air box includes a fan body and a fan housing wrapped around the outside of the fan body. An installation opening for symmetrically inserting and installing an upper and lower pair of air boxes is provided on the horizontal side of the machine box. The fan housing is located within the corresponding installation opening, and a fixing component for fixing the fan housing is installed on the machine box. A slide rail is fixedly installed in the middle of the outer side of the machine box, and an unlocking component for unlocking the fan housing fixed on the machine box by the fixing component is slidably installed on the slide rail. This application mainly relies on electric drive / automation devices such as linear drive components and slide rails to directly pull and replace a faulty air box on the machine box, effectively reducing the labor intensity and operation difficulty of operators and facilitating the quick repair of the faulty air box.

Description

Technical Field

[0001] This application relates to the field of strip production equipment, and particularly to a strip air box cooling device. Background Art

[0002] During the processing of strip steel, during continuous production, after the strip exits the zinc pot, an air cooling process is first required to cool the strip to a certain temperature before it can enter the turning rolls and then enter the water cooling process to prevent plastic deformation of the strip and affect the strip performance.

[0003] In related technologies, the air cooling device for traditional strip steel generally includes several pairs of air boxes and several pairs of stabilizing rollers. Several pairs of air boxes are symmetrically arranged on both sides of the upper and lower surfaces of the strip in sequence. Several pairs of stabilizing rollers are respectively arranged at the inlets and outlets of each pair of air boxes, and the stabilizing rollers at the inlets and outlets of each pair of air boxes are respectively arranged on both sides of the upper and lower surfaces of the strip between the pair of air boxes. The working positions of each stabilizing roller are basically arranged in a straight line, and the air boxes are inclined. The inclination angle of each pair of air boxes is consistent with the inclination angle of the strip within the cooling range of the pair of air boxes; as the strip gradually advances and is conveyed through several pairs of stabilizing rollers, several pairs of air boxes blow air evenly and forcibly cool the strip on the stabilizing rollers. Since the strip is still in a high-temperature state after exiting the zinc pot, when the pressures on both sides of the strip are uneven / cooling temperatures are uneven, it is easy to cause uneven coatings on both sides of the strip, forming color differences, and shortening the service life of the stabilizing rollers. The air pressures on the upper and lower sides of the strip can be monitored in real time through the vertical offset distance of the strip, and in the actual production process, a laser rangefinder is generally used to detect the vibration offset amount between the strip and the center line of the alloying furnace (where the air boxes and stabilizing rollers are installed). The cooling temperature of the strip is adjusted and controlled by controlling the air outlet temperature of the air boxes.

[0004] In view of the above related technologies, during the actual production process of strip steel, when any one group of air boxes in the air cooling device fails, resulting in unstable blowing air pressure / difficult-to-control blowing temperature, the actual air cooling effect and cooling quality of the air cooling device on the strip are both greatly affected; in related technologies, the alloying furnace includes several chassis for installing air boxes. The horizontal side of the chassis is open, and several groups of air boxes are generally horizontally inserted into the chassis and fixed to the chassis through bolts. When a certain group of air boxes / a certain air box malfunctions during operation, it takes a long time for the operator to disassemble, repair, or replace the faulty air box, thus affecting the production progress. Summary of the Invention

[0005] In order to improve the problem that the disassembly and assembly between the air box and the chassis are relatively complex and not conducive to quick maintenance after the air box fails in related technologies, this application provides a strip air box cooling device.

[0006] A strip air box cooling device provided by this application adopts the following technical solutions:

[0007] A strip air box cooling device includes several pairs of air boxes, several groups of stabilizing rollers, and several groups of machine boxes arranged in a straight line for installing several pairs of air boxes. Adjacent two groups of the machine boxes are interconnected. The air box includes a fan body and a fan housing wrapped outside the fan body. The horizontal side of the machine box is provided with two interconnected mounting openings for symmetrically installing an upper and a lower pair of air boxes. The fan housing is movably inserted into the corresponding mounting opening, and the machine box is equipped with fixing components at the entrance of the mounting opening and at the top / bottom of the machine box for fixing the fan housing. A slide rail is fixedly installed in the middle of the outer side of the machine box, and a unlocking component for unlocking the fan housing fixed to the machine box by the fixing component is slidably installed on the slide rail.

[0008] By adopting the above technical solution, in the actual production process of the strip, first place the air box into the mounting opening and use the fixing component to fix the fan housing, which can stably fix the air box on the machine box and make the air box stably blow air towards the strip. When the air box fails, the operator can use the slide rail and the unlocking component to unlock the fan housing fixed to the machine box by the fixing component, and then slide and pull out the unlocked air box from the mounting opening of the machine box, so as to directly pull and replace the faulty air box, achieve quick repair, and reduce the delay and adverse impact of the disassembly, replacement / repair of the air box on the production progress.

[0009] Optionally, the fixing component includes a threaded insertion rod horizontally passing through and threadedly assembled on the fan housing and the machine box, and a clamping component for clamping and fixing the fan housing of the upper air box / the fan housing of the lower air box at the top / bottom of the machine box. The unlocking component is adapted to screw and unlock the threaded insertion rod and unlock the clamping component from clamping and fixing the fan housing of the upper air box / the fan housing of the lower air box.

[0010] By adopting the above technical solution, screwing the threaded insertion rod can fixedly install the fan housing on the machine box in the horizontal direction. At the same time, using the clamping component to clamp and fix the fan housing of the upper air box / the fan housing of the lower air box at the top / bottom of the machine box can achieve the fixation between the fan housing and the machine box in the vertical direction, so as to stably fix the air box on the machine box.

[0011] Correspondingly, the unlocking component can cooperate with the fixing component to release the locking and fixing of the threaded insertion rod and the clamping component on the fan housing of the upper air box / the fan housing of the lower air box, and cooperate to directly pull and replace the faulty air box and achieve quick repair.

[0012] Optionally, the clamping member includes a left clamping plate, a right clamping plate hinged to the top / bottom of the chassis, and an elastic tensioning member for elastically tensioning the left clamping plate and the right clamping plate. The left clamping plate and the right clamping plate are symmetric with respect to the installation opening and the midline of the fan housing in the vertical direction. The unlocking assembly is adapted to press up / down the left clamping plate and the right clamping plate and move the left clamping plate and the right clamping plate away from each other.

[0013] By adopting the above technical solution, without external force, the elastic tensioning member can naturally tension the left clamping plate and the right clamping plate to approach each other, so that the left clamping plate and the right clamping plate clamp the fan housing on the upper / lower side of the middle of the fan housing, realizing the clamping and fixing of the clamping member to the fan housing in the vertical direction; when the left clamping plate and the right clamping plate on the upper side of the middle of the fan housing are subjected to an upward pressure / the left clamping plate and the right clamping plate on the lower side of the middle of the fan housing are subjected to a downward pressure, the elastic tensioning member can drive the left clamping plate and the right clamping plate to move away from each other, so as to conveniently release the locking and fixing of the left clamping plate and the right clamping plate on the upper / lower side of the middle of the fan housing to the fan housing.

[0014] Optionally, the installation opening is a rectangular opening, and the fan housing is installed at the installation opening with a clearance fit and sealed. The unlocking assembly includes an unlocking frame vertically slidably connected to the fan housing, unlocking members symmetrically installed on the left and right sides of the unlocking frame, a pressing member installed on the upper / lower side of the unlocking frame, and a linear driving member for driving the unlocking frame to slide vertically. The linear driving member is slidably installed on the slide rail. The threaded insertion rod is located outside the unlocking frame, and the unlocking member is adapted to drive the threaded insertion rod to rotate when the unlocking frame slides vertically.

[0015] By adopting the above technical solution, using the linear driving member to drive the unlocking frame to slide vertically on the fan housing can drive the unlocking member to gradually approach / away from the threaded insertion rod, and make the unlocking member correspondingly drive the threaded insertion rod to rotate and insert into the fan housing and the chassis, so as to conveniently realize the locking and fixing of the fixing component to the air box and the chassis in the horizontal direction and realize the preliminary unlocking of the air box and the chassis.

[0016] Optionally, one end of the threaded insertion rod is slidably inserted into the fan housing along its axis, and the other end is located outside the fan housing and is threadedly fitted with a driving gear. The driving gear is rotatably connected to the outer surface of the fan housing. The unlocking member is a rack integrally protruding from the outside of the unlocking frame, and the rack is movably engaged with the driving gear.

[0017] By adopting the above technical solution, as the linear driving member drives the unlocking frame to move downward, the unlocking frame can drive the rack to be movably engaged with the driving gear, and correspondingly drive the driving gear to rotate around the axis of the threaded insert rod. Under the sliding restriction of the threaded insert rod in the fan housing and the spiral drive of the threaded insert rod, the threaded insert rod slides out of the fan housing outward, so as to realize the unlocking of the fan housing and the chassis; and without external force, the driving gear is not likely to rotate, and the threaded insert rod can be stably inserted into the fan housing to fix the fan housing and the chassis.

[0018] Optionally, the pressing member includes a pressing plate integrally protruding from the outside of the unlocking frame. The lower part of the pressing plate is movably abutted against the left clamping plate and the right clamping plate. When the bottom surface of the unlocking frame is flush with the bottom surface of the fan housing, the pressing plate is slidably connected to the unlocking frame and the fan housing without slipping along the opening direction of the installation opening.

[0019] By adopting the above technical solution, as the linear driving member drives the unlocking frame to move downward until the bottom surface of the unlocking frame is flush with the bottom surface of the fan housing, the pressing plate can drive the left clamping plate and the right clamping plate to separate from each other and loosen the fan housing, so as to release the locking and fixing of the chassis to the fan housing in the vertical direction; and after the left clamping plate and the right clamping plate loosen the fan housing, the operator can pull the fan housing outward, and make the pressing plate always press down tightly on the left clamping plate and the right clamping plate, so as to prevent the left clamping plate and the right clamping plate from blocking the fan housing when the operator takes the blower box away from the chassis, and pull out and replace the faulty blower box.

[0020] Optionally, a reinforcing strut is also arranged in the unlocking frame to move up and down in the vertical direction. The lower end of the reinforcing strut movably penetrates through the bottom of the unlocking frame and is inserted into the upper part of the pressing plate. The lower end of the reinforcing strut is threadedly matched with the pressing plate, and the upper end is movably inserted into the top of the unlocking frame and is threadedly matched with the top of the unlocking frame; when the upper end of the reinforcing strut is fixedly assembled with the top of the unlocking frame by threads, the reinforcing strut is separated from the pressing plate.

[0021] By adopting the above technical solution, during the process of the linear driving member driving the unlocking frame to move downward, the reinforcing strut is placed into the pressing plate and fixedly assembled by threads, and the pressing plate can be relatively fixed to the unlocking frame, so as to realize the strengthening of the pressing plate and ensure the stable downward pressing of the unlocking frame on the pressing plate; when the linear driving member drives the unlocking frame to move until the bottom surface of the unlocking frame is flush with the bottom surface of the fan housing, the reinforcing strut is screwed and moved upward away from the pressing plate, and the operator can more conveniently pull out the fan housing, reducing the obstruction of the left clamping plate and the right clamping plate to the outward pulling of the blower box.

[0022] Optionally, a reinforcing edge is also integrally protruding from the outside of the fan housing. A plugging wedge block is slidably arranged in the top of the unlocking frame. The sliding direction of the plugging wedge block is perpendicular to the axial direction of the reinforcing strut. The plugging wedge block is movably inserted into the reinforcing edge, and the reinforcing strut movably presses against the plugging wedge block and drives the plugging wedge block to approach the reinforcing edge.

[0023] By adopting the above technical solution, during the process in which the operator screws the reinforcing strut and moves the reinforcing strut upward away from the pressure plate, the reinforcing strut can flexibly press against the plug-in wedge and allow the plug-in wedge to be flexibly inserted into the reinforcing edge, thereby achieving relative fixation of the fan casing and the unlocking frame; correspondingly, during the process in which the fan casing and the unlocking frame are relatively fixed, the reinforcing strut can serve as a new fulcrum for the operator to pull out the bellows, and the operator can pull the reinforcing strut outward, thereby saving effort and conveniently removing the bellows from the casing, thereby facilitating the operator to quickly repair the bellows.

[0024] Optionally, the unlocking frame, unlocking member and pressing member are all installed on the outside of the fan casing, the linear driving member is slidably installed on the chassis, and the output shaft end of the linear driving member and the outside of the top of the unlocking frame are both installed with a magnetic attraction part that is electromagnetically induced and controlled, and the linear driving member and the unlocking frame are magnetically fixed by the magnetic attraction part.

[0025] By adopting the above technical solution, when a bellows is damaged at a certain place, the operator can control the linear drive component to slide along the slide rail to the corresponding faulty bellows, and make the magnetic attraction part of the linear drive component magnetically cooperate with the magnetic attraction part on the top of the unlocking frame on the outside of the corresponding bellows, so that the linear drive component can drive the unlocking frame to unlock the bellows and the chassis in a relatively timely, rapid and stable manner, shortening the time for the operator to disassemble and assemble the faulty bellows, and reducing the impact of the risk of fault disassembly and maintenance on the production progress.

[0026] Optionally, auxiliary bellows are installed in the chassis and on both sides of the bellows, and the air outlet of the auxiliary bellows is arranged toward the middle of the upper / lower side of the bellows. The auxiliary bellows is opened and blows air toward the middle of the upper / lower side of the bellows when the bellows is closed.

[0027] By adopting the above technical solution, when the operator pulls out the bellows to repair / replace the faulty bellows, the operator can use the auxiliary bellows to blow air towards the blowing position of the original bellows, replace the original bellows to cool the strip, and achieve a steady flow of air in the chassis, so that the operator can pull out and replace the faulty bellows without shutting down the cooling device, further reducing delays to production progress.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. The bellows and the chassis are stably fixed by using a fixing component, and the fan housing fixed to the chassis by the fixing component is unlocked by using a slide rail and an unlocking component when the bellows fails. The overall operation is mainly completed by linear drive components and electric drive / automatic equipment such as slide rails, which effectively reduces the labor intensity and operation difficulty of the operator, facilitates the direct pulling and replacement of the faulty bellows on the chassis, realizes the quick repair of the faulty bellows, and effectively reduces the adverse effects of the bellows disassembly, replacement / repair on the production progress.

[0030] 2. By using the threaded rod, the driving gear and the clamping component to fix the bellows and the chassis, it is convenient to achieve stable fixation of the bellows and the chassis while cooperating with the unlocking component to conveniently disassemble and assemble the bellows and the chassis;

[0031] 3. Through the cooperation of the linear drive component, the unlocking frame, the pressure plate and the reinforcing support rod, when the linear drive component drives the unlocking frame to move until the bottom surface of the unlocking frame is flush with the bottom surface of the fan casing, the reinforcing support rod is screwed and moved upward away from the pressure plate. The reinforcing support rod can be used as a new fulcrum for the operator to pull the bellows. The operator can use the reinforcing support rod to pull the fan casing more conveniently and labor-savingly, reduce the obstruction of the left and right clamping plates to the outward pulling of the bellows, and realize the rapid pulling of the bellows. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic diagram of the overall cross-sectional structure of an embodiment of the present application;

[0033] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0034] Figure 3 yes Figure 2 Schematic diagram of the local structure in;

[0035] Figure 4 It is an enlarged schematic cross-sectional view of a local structure of an embodiment of the present application;

[0036] Figure 5 It is a schematic diagram of the internal structure of the chassis in the embodiment of the present application.

[0037] Figure numerals: 1. bellows; 11. fan casing; 12. reinforcement edge; 2. stabilizing roller; 3. chassis; 31. mounting port; 4. fixing assembly; 41. threaded rod; 411. driving gear; 42. clamping component; 421. left clamping plate; 422. right clamping plate; 423. elastic tensioning member; 5. slide rail; 6. unlocking assembly; 61. unlocking frame; 611. plug-in wedge block; 612. reset spring; 613. reset pressure block; 62. unlocking member; 63. pressing component; 631. pressure plate; 632. reinforcement support rod; 64. linear drive member; 65. magnetic attraction part; 7. auxiliary bellows. Detailed implementation mode

[0038] The following will further elaborate on this application in conjunction with the attached Figures 1-5 drawings.

[0039] An embodiment of this application discloses a strip air box cooling device.

[0040] Referring to Figure 1 and Figure 2 , a strip air box cooling device includes several pairs of air boxes 1, several groups of stabilizing rollers 2, and several groups of chassis 3 arranged in a straight line for installing several pairs of air boxes 1. The several groups of chassis 3 are arranged in a straight line, and adjacent two groups of chassis 3 are interconnected to allow the strip to pass horizontally through the middle of the chassis 3; several pairs of air boxes 1 and several groups of stabilizing rollers 2 are correspondingly installed on the chassis 3. The several pairs of air boxes 1 are symmetrically arranged on both sides of the upper and lower surfaces of the strip in sequence, and the air box 1 includes a fan body and a fan housing 11 wrapped around the outside of the fan body.

[0041] To address the problem in related technologies that the disassembly and assembly between the air box 1 and the chassis 3 are relatively complex after a failure of the air box 1, which is not conducive to quick maintenance, referring to Figure 1 and Figure 2 , two interconnected installation openings 31 for symmetrically installing a pair of upper and lower air boxes 1 are provided on the horizontal side of the chassis 3. The fan housing 11 is movably inserted into the corresponding installation opening 31, and a fixing component 4 for fixing the fan housing 11 is installed in cooperation with the entrance of the installation opening 31 and the top / bottom of the chassis 3. Operators can use the fixing component 4 to fix the air box 1 to the chassis 3; between several groups of chassis 3, a linear slide rail 5 is fixedly installed in the middle of the outside of the chassis 3 along the extension direction of the chassis 3, and a unlocking component 6 for unlocking the fan housing 11 fixed to the chassis 3 by the fixing component 4 is slidably installed on the slide rail 5.

[0042] Specifically, referring to Figure 2 and Figure 3 , the fixing component 4 includes a threaded insertion rod 41 horizontally passing through and threadedly assembled on the fan housing 11 and the chassis 3, and a clamping component 42 for clamping and fixing the fan housing 11 of the upper air box 1 / the fan housing 11 of the lower air box 1 at the top / bottom of the chassis 3.

[0043] The opening of the installation opening 31 and the cross-section of the fan housing 11 in the vertical direction are both rectangular, and the short side corresponding to the opening of the installation opening 31 is arranged in the vertical direction. The fan housing 11 is slidably connected to the inside of the chassis 3 along the opening direction of the installation opening 31, and one end of the fan housing 11 is located inside the chassis 3 and the other end is located outside the chassis 3.

[0044] The end wall surface of the blower housing 11 remaining outside the chassis 3 and the surface of the chassis 3 on the side where the installation opening 31 is provided are both vertical planes. The end wall of the blower housing 11 remaining outside the chassis 3 covers the installation opening 31. The part of the blower housing 11 placed inside the chassis 3 is in clearance fit with the inner side wall of the chassis 3 and is hermetically connected to the installation opening 31. And the air outlet of the blower housing 11 of the lower air box 1 faces upward, and the air outlet of the blower housing 11 of the upper air box 1 faces downward. The air outlets of the upper and lower air boxes 1 are arranged oppositely. The opening of the air outlet of each air box 1 is inclined, and the included angle between the opening direction of the air outlet of the air box 1 and the strip steel is between 30° and 60°, so as to adapt to the forward conduction trend of the strip steel and stably and uniformly blow air to cool the strip steel.

[0045] Refer to Figure 3 and Figure 4 , four groups of threaded rods 41 are correspondingly provided. The four groups of threaded rods 41 are respectively located at the four corners of the blower housing 11. One end of the threaded rod 41 is slidably inserted into the blower housing 11 along its axis, and the other end is located outside the blower housing 11 and is threadedly fitted with a driving gear 411. The driving gear 411 is rotatably connected to the outer surface of the blower housing 11. By screwing the driving gear 411, the threaded rod 41 slides into / out of the blower housing 11 under the sliding restriction of the blower housing 11 and the spiral drive of the threaded rod 41, so as to realize the plugging and fixing of the fixing component 4 to the blower housing 11 and the chassis 3 in the horizontal direction / to release the locking of the threaded rod 41 to the blower housing 11 and the chassis 3 in the horizontal direction.

[0046] The clamping member 42 includes a left clamping plate 421, a right clamping plate 422 hinged to the top / bottom of the chassis 3, and an elastic tension member 423 for elastically tensioning the left clamping plate 421 and the right clamping plate 422. The left clamping plate 421 and the right clamping plate 422 are both in the shape of a straight long strip, and the length direction of the left clamping plate 421 is perpendicular to the conveying direction of the strip steel. The left clamping plate 421 and the right clamping plate 422 are symmetric with respect to the vertical center line of the installation opening 31 and the blower housing 11. The elastic tension member 423 is a high-strength spring in the embodiment of the present application. The elastic tension member 423 is located between the left clamping plate 421 and the right clamping plate 422, and both ends of the elastic tension member 423 are fixedly connected to the left clamping plate 421 and the right clamping plate 422 respectively. The telescopic direction of the elastic tension member 423 is consistent with the conveying direction of the strip steel.

[0047] The lower side of the blower housing 11 of the lower bellows 1 / the upper side of the blower housing 11 of the upper bellows 1 is provided in a dovetail shape, and the cross-sectional area of the dovetail of the blower housing 11 gradually increases from the side close to the inside of the blower housing 11 towards the side far from the inside of the blower housing 11; the elastic tensioning member 423 is adapted to pull the left clamping plate 421 and the right clamping plate 422 closer to each other and clamp the dovetail of the blower housing 11 by the left clamping plate 421 and the right clamping plate 422, so as to realize the fixation between the blower housing 11 and the chassis 3 in the vertical direction, so as to stably fix the bellows 1 on the chassis 3.

[0048] Referring to Figure 3 and Figure 4 , the unlocking assembly 6 correspondingly includes an unlocking frame 61 vertically slidably connected to the blower housing 11, unlocking members 62 symmetrically installed on the left and right sides of the unlocking frame 61, a pressing member 63 installed on the upper side / lower side of the unlocking frame 61, and a linear driving member 64 for driving the unlocking frame 61 to slide vertically.

[0049] The linear driving member 64 is a driving cylinder in the embodiment of the present application. The slide rail 5 is a guide rail of the linear driving module. A sliding seat is slidably installed on the slide rail 5. There are two groups of linear driving members 64. The two groups of linear driving members 64 are respectively located on the upper and lower sides of the slide rail 5. The two groups of linear driving members 64 are respectively used to drive the unlocking frame 61 outside the upper bellows 1 and the unlocking frame 61 outside the lower bellows 1 to slide in the vertical direction, and the opening and closing and operation of the two groups of linear driving members 64 are independent of each other.

[0050] The unlocking frame 61 is a rectangular frame. The unlocking frame 61 is vertically slidably connected between the four threaded insertion rods 41; the unlocking member 62 is a rack integrally protruding from the outside of the unlocking frame 61. There are four groups of unlocking members 62. The four groups of unlocking members 62 correspond to the four groups of driving gears 411 respectively, and the corresponding unlocking member 62 and the driving gear 411 are movably engaged; on the lower / upper bellows 1, the length of the threaded insertion rod 41 in the middle of the two groups of driving gears 411 located on the lower side / upper side of the blower housing 11 is shorter than the length of the two groups of threaded insertion rods 41 located on the upper side / lower side of the blower housing 11, and the former length is 1 / 2 of the latter length, so as to realize the stable fixation and sequential unlocking of the bellows 1 on the chassis 3.

[0051] As the linear driving member 64 drives the unlocking frame 61 to move downward, referring to Figure 3 and Figure 4, the unlocking frame 61 can drive the rack to engage with the driving gear 411 movably, and accordingly drive the driving gear 411 to rotate around the axis of the threaded insertion rod 41. Under the sliding restriction of the threaded insertion rod 41 in the fan housing 11 and the spiral drive of the threaded insertion rod 41, the threaded insertion rod 41 slides out of the fan housing 11, thereby realizing the unlocking of the fan housing 11 and the chassis 3; and without external force, the driving gear 411 is not prone to rotate, and the threaded insertion rod 41 can be more stably inserted into the fan housing 11 to fix the fan housing 11 and the chassis 3.

[0052] At the end of the output shaft of the linear driving member 64 and on the outer side of the top of the unlocking frame 61, magnetic attracting parts 65 controlled by electromagnetic induction are also installed, and the linear driving member 64 and the unlocking frame 61 are magnetically fixed through the magnetic attracting parts 65; when a certain air box 1 is damaged, the operator can control the linear driving member 64 to slide along the slide rail 5 to the corresponding faulty air box 1, and make the magnetic attracting part 65 of the linear driving member 64 magnetically cooperate with the magnetic attracting part 65 on the top of the unlocking frame 61 on the outer side of the corresponding air box 1.

[0053] The pressing member 63 includes a pressing plate 631 integrally protruding from the outer side of the unlocking frame 61 and a reinforcing strut 632 arranged to lift and lower in the vertical direction within the unlocking frame 61.

[0054] The pressing plate 631 is in a "door"-shaped strip shape, and the tip of the pressing plate 631 faces upward. The upper part of the pressing plate 631 is slidably connected to the bottom of the unlocking frame 61 along the opening direction of the mounting opening 31, and the lower part of the pressing plate 631 is movably abutted against the left clamping plate 421 and the right clamping plate 422.

[0055] Refer to Figure 3 and Figure 4 , the lower end of the reinforcing strut 632 movably penetrates through the bottom of the unlocking frame 61 and is inserted into the upper part of the pressing plate 631, and the lower end of the reinforcing strut 632 is threadedly adapted to the pressing plate 631, and the upper end is movably inserted into the top of the unlocking frame 61 and is threadedly adapted to the top of the unlocking frame 61; when the lower end of the reinforcing strut 632 is screwed to its movement end point, there is still a gap between the end wall of the upper end of the reinforcing strut 632 and the bottom wall of the threaded hole at the top of the unlocking frame 61, that is, the reinforcing strut 632 can still move upward; when the upper end of the reinforcing strut 632 is fixedly assembled with the top of the unlocking frame 61 by threads, the reinforcing strut 632 is disengaged from the pressing plate 631.

[0056] A plugging wedge block 611 is also slidably arranged inside the top of the unlocking frame 61, and the sliding direction of the plugging wedge block 611 is perpendicular to the axial direction of the reinforcing strut 632; on the outer wall of one side of the fan housing 11 facing outward along the opening direction of the mounting opening 31, a reinforcing edge 12 is integrally and outwardly protruded, and the plugging wedge block 611 is movably inserted into the reinforcing edge 12, and the reinforcing strut 632 movably presses against the plugging wedge block 611 and drives the plugging wedge block 611 to approach the reinforcing edge 12.

[0057] During the process that the operator turns the tightening strut 632 and makes the tightening strut 632 move upward away from the pressing plate 631, the tightening strut 632 can actively press against the inserting wedge block 611 and make the inserting wedge block 611 actively insert into the strengthening edge 12, so as to realize the relative fixation between the fan housing 11 and the unlocking frame 61; during the process of the relative fixation between the fan housing 11 and the unlocking frame 61, the tightening strut 632 can serve as a new force application point for the operator to pull and push the air box 1. The operator can pull the tightening strut 632 outward, so as to more labor-savingly and conveniently take the air box 1 away from the chassis 3; and during this process, the pressing plate 631 can slip off from the bottom / top of the unlocking frame 61 and be pressed by the fan housing 11 below the lower air box 1 / above the upper air box 1, avoiding the pressing plate 631 itself, the left clamping plate 421 and the right clamping plate 422 from blocking the fan housing 11 during the process that the operator takes the air box 1 away from the chassis 3, and facilitating the operator to pull and replace the faulty air box 1.

[0058] Further, referring to Figure 3 and Figure 4 , a return spring 612 and a return pressure block 613 for driving the inserting wedge block 611 to reset and spring back into the unlocking frame 61 when the tightening strut 632 is inserted into the pressing plate 631 are further installed on the inserting wedge block 611. One end of the return spring 612 is fixedly installed in the cavity at the top of the unlocking frame 61 for the inserting wedge block 611 to move, the other end of the return spring 612 is fixedly installed on the return pressure block 613, and the side of the return pressure block 613 close to the inserting wedge block 611 is a wedge surface; as the inserting wedge block 611 is inserted into the strengthening edge 12 under the pressing action of the tightening strut 632, the return pressure block 613 correspondingly presses the return spring 612 and compresses the return spring 612; as the inserting wedge block 611 moves away from the strengthening edge 12, the return pressure block 613 presses the inserting wedge block 611 under the resilience of the return spring 612 and makes the inserting wedge block 611 move away from the strengthening edge 12 and return to the unlocking frame 61.

[0059] Referring to Figure 2 and Figure 5 , auxiliary air boxes 7 are also installed on both sides of the air box 1 in the chassis 3. The air outlets of the auxiliary air boxes 7 are arranged towards the middle of the upper / lower side of the air box 1. The auxiliary air boxes 7 are opened when the air box 1 is shut down and blow towards the middle of the upper / lower side of the air box 1.

[0060] During the process that the operator pulls and pushes the air box 1 to repair / replace the faulty air box 1, the operator can use the auxiliary air box 7 to blow towards the original blowing place of the air box 1 to replace the original air box 1 to cool the strip steel and realize the stable flow of the air flow in the chassis 3. Thus, the operator can pull and replace the faulty air box 1 without shutting down the cooling device, further reducing the delay to the production progress.

[0061] The implementation principle of a strip air box cooling device in an embodiment of the present application is as follows: During the actual production process of the strip, an operator can place the air box 1 into the installation port 31 and use the fixing component 4 to fix the fan housing 11, so that the air box 1 is stably fixed on the chassis 3 and blows air towards the strip stably; When any one of the air boxes 1 in the air-cooling device fails, resulting in unstable blowing air pressure / difficult-to-control blowing air temperature, the operator can use the slide rail 5 to drive the linear driving member 64 to the corresponding air box 1, and drive the linear driving member 64 to move downward / upward until the magnetic attraction part 65 at the end of the output shaft of the linear driving member 64 is magnetically fixed to the magnetic attraction part 65 on the corresponding unlocking frame 61. Then, make the linear driving member 64 continue to move, driving the unlocking frame 61 to drive the rack to unlock the threaded insertion rod 41 and the left clamping plate 421 and the right clamping plate 422 correspondingly arranged below / above the air box 1; Then, turn the strengthening support rod 632 to lift the corresponding insertion wedge block 611, so that the insertion wedge block 611 is inserted into the strengthening edge 12. The operator can then pull the strengthening support rod 632 outwards to easily and conveniently remove the air box 1 from the chassis 3, thereby realizing the pulling and replacement of the faulty air box 1. The overall operation is mainly completed by electric drive / automation devices such as the linear driving member 64 and the slide rail 5, effectively reducing the labor intensity and operation difficulty of the operator, effectively realizing the quick repair of the faulty air box 1, and reducing the adverse effects such as the delay of the production progress caused by the disassembly, installation, replacement / repair of the air box 1.

[0062] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A strip air box cooling device, comprising a plurality of pairs of air boxes (1), a plurality of groups of stabilizing rollers (2), and a plurality of groups of machine boxes (3) arranged in a straight line for installing a plurality of pairs of air boxes (1), with adjacent two groups of the machine boxes (3) being interconnected, characterized in that: The bellows (1) includes a blower body and a blower housing (11) wrapped around the outside of the blower body. The chassis (3) has two connected mounting openings (31) horizontally on its side for symmetrically mounting a pair of upper and lower bellows (1). The blower housing (11) is movably inserted into the corresponding mounting opening (31), and the chassis (3) is fitted with a fixing assembly (4) at the entrance of the mounting opening (31) and at the top / bottom of the chassis (3) for fixing the blower housing (11). A slide rail (5) is fixedly installed in the middle on the outside of the chassis (3), and an unlocking assembly (6) for unlocking the blower housing (11) fixed to the chassis (3) by the fixing assembly (4) is slidably installed on the slide rail (5). The fixing assembly (4) includes a threaded insertion rod (41) horizontally passing through and threadedly assembled to the blower housing (11) and the chassis (3), and a clamping member (42) for clamping and fixing the blower housing (11) of the upper bellows (1) / the blower housing (11) of the lower bellows (1) at the top / bottom of the chassis (3). The unlocking assembly (6) is adapted to screw and unlock the threaded insertion rod (41) and release the clamping of the blower housing (11) of the upper bellows (1) / the blower housing (11) of the lower bellows (1) by the clamping member (42). The clamping member (42) includes a left clamping plate (421), a right clamping plate (422) hinged to the top / bottom of the chassis (3), and an elastic tensioning member (423) for elastically tensioning the left clamping plate (421) and the right clamping plate (422). The left clamping plate (421) and the right clamping plate (422) are symmetric with respect to the vertical center line of the mounting opening (31) and the blower housing (11). The unlocking assembly (6) is adapted to press up / down the left clamping plate (421) and the right clamping plate (422) and make the left clamping plate (421) and the right clamping plate (422) move away from each other. The mounting opening (31) is a rectangular opening. The blower housing (11) is installed at the mounting opening (31) with a clearance fit and sealed. The unlocking assembly (6) includes an unlocking frame (61) vertically slidably connected to the blower housing (11), unlocking members (62) symmetrically installed on the left and right sides of the unlocking frame (61), a pressing member (63) installed on the upper / lower side of the unlocking frame (61), and a linear driving member (64) for driving the unlocking frame (61) to slide vertically. The linear driving member (64) is slidably installed on the slide rail (5). The threaded insertion rod (41) is located outside the unlocking frame (61), and the unlocking member (62) is adapted to drive the threaded insertion rod (41) to rotate when the unlocking frame (61) slides vertically.

2. The strip air box cooling device according to claim 1, characterized in that: One end of the threaded insertion rod (41) is slidably inserted into the blower housing (11) along its axis, and the other end is located outside the blower housing (11) and is threadedly fitted with a driving gear (411). The driving gear (411) is rotatably connected to the outer surface of the blower housing (11). The unlocking member (62) is a rack integrally protruding from the outside of the unlocking frame (61), and the rack is movably engaged with the driving gear (411).

3. The strip air box cooling device according to claim 1, characterized in that: The pressing member (63) includes a pressing plate (631) integrally protruding outside the unlocking frame (61). The lower part of the pressing plate (631) is in movable abutment with the left clamping plate (421) and the right clamping plate (422). When the bottom surface of the unlocking frame (61) is flush with the bottom surface of the fan housing (11), the pressing plate (631) is slidably connected to the unlocking frame (61) and the fan housing (11) without slipping along the opening direction of the installation opening (31).

4. A strip air box cooling device according to claim 3, characterized in that: A reinforcing strut (632) is further arranged in the unlocking frame (61) to move up and down in the vertical direction. The lower end of the reinforcing strut (632) movably penetrates through the bottom of the unlocking frame (61) and is inserted into the upper part of the pressing plate (631). The lower end of the reinforcing strut (632) is threadedly adapted to the pressing plate (631), and the upper end is movably inserted into the top of the unlocking frame (61) and is threadedly adapted to the top of the unlocking frame (61). When the upper end of the reinforcing strut (632) is fixedly assembled with the top of the unlocking frame (61) by threading, the reinforcing strut (632) is disengaged from the pressing plate (631).

5. The strip air box cooling device according to claim 4, characterized in that: A reinforcing edge (12) is integrally protruding outside the fan housing (11). A plugging wedge block (611) is slidably arranged inside the top of the unlocking frame (61). The sliding direction of the plugging wedge block (611) is perpendicular to the axial direction of the reinforcing strut (632). The plugging wedge block (611) is movably inserted into the reinforcing edge (12). The reinforcing strut (632) movably presses against the plugging wedge block (611) and drives the plugging wedge block (611) to approach the reinforcing edge (12).

6. The strip air box cooling device according to claim 1, characterized in that: The unlocking frame (61), the unlocking member (62) and the pressing member (63) are all installed outside the fan housing (11). The linear driving member (64) is slidably installed on the chassis (3). Magnetic attraction parts (65) controlled by electromagnetic induction are installed at the end of the output shaft of the linear driving member (64) and outside the top of the unlocking frame (61). The linear driving member (64) and the unlocking frame (61) are magnetically fixed by the magnetic attraction parts (65).

7. The strip air box cooling device according to claim 1, characterized in that: Auxiliary air boxes (7) are also installed on both sides of the air box (1) inside the chassis (3). The air outlets of the auxiliary air boxes (7) are arranged towards the middle of the upper side / lower side of the air box (1). The auxiliary air boxes (7) are opened when the air box (1) is shut down and blow towards the middle of the upper side / lower side of the air box (1).

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