Arch plate flattening machine for automatic plate detection line of steel mill

Abstract

The invention relates to the technical field of plate processing equipment, in particular to an arch slab flatting machine for an automatic plate detection line of a steel mill, which comprises a four-column hydraulic press and a hydraulic station for providing power for the four-column hydraulic press, and an arc-shaped upper die and an arc-shaped lower die which are matched with each other are arranged on the four-column hydraulic press and used for pressing an arch slab; the feeding and discharging mechanism is arranged on the front face of the four-column hydraulic machine and used for feeding and discharging arch plates. And the centering adjusting mechanism is arranged on the arc-shaped lower die, is driven by the feeding and discharging mechanism and is used for centering and clamping the arch slab. The arc-shaped upper die and the arc-shaped lower die which are matched with each other are arranged on the four-column hydraulic machine, when the arch bar is pressed, the arch bar generates reverse curvature exceeding a target plane, the reverse curvature, exceeding the target plane, of the arch bar can offset the elastic recovery amount of the arch bar after unloading, turning compensation is conducted on the arch bar, and the flatness of the arch bar after pressing is improved.

Description

Technical Field

[0001] This invention relates to the field of sheet metal processing equipment technology, specifically to an arch plate flattening machine used on an automated sheet metal inspection line in a steel plant. Background Technology

[0002] During steel mill production, samples need to be cut from steel coils for testing. However, these samples are often arched plates with significant camber. Subsequent mechanical testing using laser cutting of these samples presents challenges, including dimensional inconsistencies that don't meet national standards and difficulties in separating the samples from the original plate. Therefore, the arched plates cut from the steel coils need to be leveled. Currently, this is typically done using roller levelers or hydraulic presses. Roller levelers are too bulky and expensive, and since leveling is primarily achieved by rollers, they are difficult to replace after installation. This significantly limits their applicability to the wide range of plate thicknesses commonly found in steel mills today. Hydraulic presses also present some technical challenges.

[0003] For example, invention patent CN106926496A discloses a highly stable hydraulic press, including a top cover. A hydraulic device is installed on the top of the top cover, and a piston is installed inside the hydraulic device. A telescopic rod is installed at one end of the piston, and a pressure plate is installed at the top end of the telescopic rod. Fixing frames are installed on both sides below the top cover, and one end of the fixing frame is installed on a base plate. A pad is installed on top of the base plate, and a base is installed below the base plate. A clamping plate is installed on one side above the base. The press uses the hydraulic device to move the pressure plate and cooperate with the pad to flatten the workpiece.

[0004] In the prior art of the aforementioned patent, both the pressure plate and the pad are flat mold structures. However, when the arch plate is compressed, it undergoes elastic and plastic deformation. After unloading, the elastically deformed part will recover, causing the arch plate to spring back. This is especially true for thinner plates, where the elastic recovery is more significant. Flat molds cannot be used to flatten the arch plate. Therefore, there is an urgent need for an arch plate flattening machine for use on automated plate inspection lines in steel plants to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an arch plate flattening machine for use on an automated plate inspection line in a steel plant, so as to solve the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an arch plate flattening machine for an automated plate inspection line in a steel plant, comprising a four-column hydraulic press and a hydraulic station that provides power to the four-column hydraulic press, wherein the four-column hydraulic press is provided with an arc-shaped upper mold and an arc-shaped lower mold that cooperate with each other for pressing the arch plate;

[0007] It also includes a loading and unloading mechanism, which is located on the front of the four-column hydraulic press and is used to load and unload the arch plate; and a centering adjustment mechanism, which is located on the arc-shaped lower mold and is driven by the loading and unloading mechanism, and is used to center and clamp the arch plate.

[0008] The loading and unloading mechanism can be driven to place the arch plate on the top of the arc-shaped lower mold with the arch surface facing upward; after the loading and unloading mechanism places the arch plate, it can drive the centering adjustment mechanism to adjust the arch plate to the middle position of the arc-shaped lower mold; when the arc-shaped upper mold and the arc-shaped lower mold cooperate to press the arch plate, the arch plate can generate a reverse curvature that exceeds the target plane.

[0009] Preferably, the bottom of the arc-shaped upper mold has an outwardly protruding arc-shaped surface, and the top of the arc-shaped lower mold has an inwardly concave arc-shaped surface, and the curvature of the arc-shaped surfaces on the arc-shaped upper mold and the arc-shaped lower mold is the same.

[0010] Preferably, both the arc-shaped upper mold and the arc-shaped lower mold are composed of sub-molds arranged side by side, and the arc-shaped upper mold is provided with an adjustable middle section and a quick-change mechanism for adjusting the position of the adjustable middle section.

[0011] Preferably, the loading and unloading mechanism includes a feeding rod for supporting the arch plate during loading and unloading; and a driving assembly for adjusting the horizontal and vertical positions of the feeding rod.

[0012] Preferably, the centering adjustment mechanism is located between adjacent sub-molds in the arc-shaped lower mold. The centering adjustment mechanism includes a mounting sleeve located at the middle position on the front and rear sides of the arc-shaped lower mold. A drive rod is spirally connected in the mounting sleeve, and the drive rod has a clearance groove.

[0013] Preferably, the mounting sleeve is provided with adjusting arms on both the front and rear sides, and the mounting sleeve and the two sets of adjusting arms are connected by a transmission mechanism.

[0014] Preferably, when the drive rod is pressed down, it can drive the mounting sleeve to rotate and drive the two sets of adjusting arms to move closer to the middle position of the arc-shaped lower mold.

[0015] Preferably, a limiting flap is hinged to the top of the drive rod, and the limiting flap can only rotate upward.

[0016] Preferably, the adjusting arm is provided with a roller coating assembly. The adjusting arm is driven to move, which in turn causes the roller coating assembly to move synchronously. When the roller coating assembly moves, it can apply lubricating oil to the arc-shaped lower mold.

[0017] Preferably, the roller coating assembly includes an oil storage box slidably mounted on an adjusting arm for storing lubricating oil; and an oil absorption and application assembly rotatably mounted on the bottom of the oil storage box for absorbing lubricating oil and applying it to the arc-shaped lower mold.

[0018] In the above technical solution, the beneficial effects of the present invention are as follows: by setting mutually cooperating arc-shaped upper and lower dies on a four-column hydraulic press, the arch plate is pressed to produce a reverse curvature that exceeds the target plane. The reverse curvature of the arch plate exceeding the target plane can offset the elastic recovery of the arch plate after unloading, thereby compensating for the over-bending of the arch plate and improving the flatness of the arch plate after pressing. This device occupies little space, has a simple structure and low cost, and is not limited by the plate thickness, which can greatly increase the scope of application.

[0019] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0020] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a schematic diagram of the overall assembled structure of the present invention;

[0023] Figure 2 This is a front view structural schematic diagram of the four-column hydraulic press of the present invention;

[0024] Figure 3 This is a schematic diagram of the loading and unloading mechanism of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure when the arc-shaped upper mold and the arc-shaped lower mold of the present invention are engaged;

[0026] Figure 5 This is a schematic diagram of the centering adjustment mechanism and the arc-shaped lower mold of the present invention.

[0027] Figure 6 This is a schematic diagram of the centering adjustment mechanism of the present invention;

[0028] Figure 7 This is a structural schematic diagram of the cross-section of the mounting sleeve of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the limiting flap after it is opened according to the present invention;

[0030] Figure 9 This is a schematic diagram of the roller coating assembly of the present invention during operation;

[0031] Figure 10 This is a schematic diagram of the cross-sectional structure of the roller coating assembly of the present invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] In the diagram: 1. Four-column hydraulic press; 11. Machine base; 12. Moving guide column; 13. Upper crossbeam; 14. Movable crossbeam; 15. Hydraulic cylinder; 2. Hydraulic station; 3. Loading / unloading mechanism; 31. Support arm; 32. Connecting slide; 33. Connecting crossbar; 34. Feeding rod; 35. Horizontal hydraulic rod; 36. Vertical hydraulic rod; 4. Arc-shaped lower mold; 5. Centering adjustment mechanism; 51. Mounting base plate; 52. Mounting sleeve; 5 3. Drive bevel gear; 54. Drive rod; 55. Drive shaft; 56. Drive bevel gear; 57. Return spring; 58. Adjusting arm; 59. Roller coating assembly; 591. Oil reservoir; 592. Coating roller; 593. Oil-absorbing cotton; 510. Positioning block; 511. Clearance groove; 512. Limiting flap; 6. Arc-shaped upper mold; 7. Adjustable middle section; 8. Quick change mechanism; 81. Wrench; 82. Connecting plate; 9. Wear-resistant liner. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0035] Please see Figure 1-10 The present invention provides a technical solution: an arch plate flattening machine for an automated plate inspection line in a steel plant, including a four-column hydraulic press 1 and a hydraulic station 2 that provides power to the four-column hydraulic press 1. The four-column hydraulic press 1 is provided with an arc-shaped upper mold 6 and an arc-shaped lower mold 4 that cooperate with each other for pressing the arch plate.

[0036] The four-column hydraulic press 1 includes a base 11, with four fixedly mounted motion guide columns 12 at the top corners of the base 11. An upper crossbeam 13 is fixedly mounted on the top of the motion guide columns 12, and a movable crossbeam 14 is movably mounted on the motion guide columns 12. A hydraulic cylinder 15 is fixedly mounted on the upper crossbeam 13, and the output shaft of the hydraulic cylinder 15 is fixedly connected to the movable crossbeam 14. The hydraulic station 2 is controlled by the control system to provide hydraulic pressure to the hydraulic cylinder 15. The hydraulic cylinder 15 drives the movable crossbeam 14 and the arc-shaped upper mold 6 to move and cooperate with the arc-shaped lower mold 4 to press the arch plate.

[0037] It also includes a loading and unloading mechanism 3, which is located on the front of the four-column hydraulic press 1 and is used to load and unload the arch plate; and a centering adjustment mechanism 5, which is located on the arc-shaped lower mold 4 and is driven by the loading and unloading mechanism 3 and is used to center and clamp the arch plate.

[0038] The loading and unloading mechanism 3 can be driven to place the arch plate on the top of the arc-shaped lower mold 4 with the arch surface facing upward; after the loading and unloading mechanism 3 places the arch plate, it can drive the centering adjustment mechanism 5 to adjust the arch plate to the middle position of the arc-shaped lower mold 4; when the arc-shaped upper mold 6 and the arc-shaped lower mold 4 cooperate to press the arch plate, the arch plate can produce a reverse curvature that exceeds the target plane.

[0039] Specifically, the arch plate to be flattened is placed on the loading and unloading mechanism 3 by a robotic arm or manual labor using existing technology. The loading and unloading mechanism 3, controlled by the control system, places the arch plate on the top of the arc-shaped lower mold 4. After the loading and unloading mechanism 3 places the arch plate in place, it continues to drive the centering adjustment mechanism 5 to perform centering and clamping of the arch plate, adjusting the arch plate to the middle position of the top of the arc-shaped lower mold 4, so that the arch plate is directly below the arc-shaped upper mold 6, improving the accuracy of subsequent pressing of the arch plate. After the arch plate position is adjusted, the hydraulic station 2, controlled by the control system, provides hydraulic pressure to the four-column hydraulic press 1. The four-column hydraulic press 1 drives the arc-shaped upper mold 6 to move down to press the arch plate, and makes the arch plate produce a reverse curvature beyond the target plane. The reverse curvature of the arch plate beyond the target plane can offset the elastic recovery of the arch plate after unloading, perform over-bending compensation for the arch plate, and improve the flatness of the arch plate after pressing.

[0040] Compared with the prior art, the present invention sets up an interlocking arc-shaped upper die 6 and an arc-shaped lower die 4 on a four-column hydraulic press 1, so that the arch plate generates a reverse curvature exceeding the target plane when pressing the arch plate. The reverse curvature of the arch plate exceeding the target plane can offset the elastic recovery of the arch plate after unloading, thereby compensating for the over-bending of the arch plate and improving the flatness of the arch plate after pressing. The device has a small footprint, simple structure, low cost, and is not limited by plate thickness, which can greatly increase the scope of application.

[0041] As a preferred technical solution in this embodiment, the bottom of the arc-shaped upper mold 6 has an outwardly protruding arc-shaped surface, and the top of the arc-shaped lower mold 4 has an inwardly concave arc-shaped surface. The curvature of the arc-shaped surfaces on the arc-shaped upper mold 6 and the arc-shaped lower mold 4 is the same. Specifically, a rubber pad is glued to the arc-shaped surface of the arc-shaped upper mold 6 to prevent indentations from being left on the arch plate during pressing, which would affect subsequent surface testing. A wear-resistant liner 9 is fixedly installed on the arc-shaped surface of the arc-shaped lower mold 4 to reduce the wear of the arc-shaped lower mold 4 and improve the overall service life. It should be noted that since a flat mold is used to press the arch plate, the arch plate will spring back after unloading, resulting in the arch plate not achieving the ideal flatness. Therefore, the arc-shaped upper mold 6 and the arc-shaped lower mold 4 with arc-shaped surfaces are used to press the arch plate, so that the arch plate can generate a reverse curvature exceeding the target plane during pressing. The reverse curvature of the arch plate exceeding the target plane can offset the elastic recovery of the arch plate after unloading, thereby improving the flatness of the arch plate after pressing.

[0042] As a preferred embodiment, both the arc-shaped upper mold 6 and the arc-shaped lower mold 4 are composed of parallel sub-molds. The arc-shaped upper mold 6 is provided with an adjustable middle section 7 and a quick-change mechanism 8 for adjusting the position of the adjustable middle section 7. Specifically, the arc-shaped upper mold 6 is fixedly installed on the bottom of the movable crossbeam 14 by a pressure plate, and the arc-shaped lower mold 4 is fixedly installed on the top of the machine base 11 by a pressure plate. The sub-molds in the arc-shaped upper mold 6 and the arc-shaped lower mold 4 correspond one-to-one. The quick-change mechanism 8 includes a wrench 81, which is rotatably installed on the arc-shaped upper mold 6. A connecting plate 82 is fixedly connected to the adjustable middle section 7. One end of the wrench 81 is engaged with the connecting plate 82, and the other end extends to the rear of the arc-shaped upper mold 6. By turning the wrench 81, the connection can be adjusted. The plate 82 transmission adjusts the height of the adjustable middle section 7; a positioning pin is inserted into the middle of the connecting plate 82, and the arc-shaped upper die 6 has a vertical array of pin holes for the positioning pin to engage. After adjusting the position of the adjustable middle section 7, the positioning pin is inserted into the corresponding pin hole to lock the position of the adjustable middle section 7. It should be noted that since the springback amount of plates of different thicknesses is different after pressing, and the springback amount of thin plates is greater than that of thick plates, when pressing thin plates, the adjustable middle section 7 is lowered by the quick-change mechanism 8, and the output force of the hydraulic station 2 and the pressing distance of the arc-shaped upper die 6 are adjusted by the control system to make the thin plate obtain more reverse curvature during pressing, so as to effectively counteract the springback amount of the thin plate.

[0043] In another embodiment of the present invention, the loading and unloading mechanism 3 includes a feeding rod 34 for supporting the arch plate during loading and unloading; and a driving assembly for adjusting the horizontal and vertical positions of the feeding rod 34. Specifically, the loading and unloading mechanism 3 includes a support arm 31, which is fixedly installed on the front of the base 11; a connecting slide 32, which is slidably installed on the top of the support arm 31; and a connecting crossbar 33, which is slidably installed on the side of the connecting slide 32 near the base 11; the feeding rod 34 is fixedly installed on the connecting crossbar 33 near the base 11. On one side; the drive assembly includes a horizontal hydraulic rod 35, which is fixedly mounted on the base 11, and the output shaft of the base 11 is fixedly connected to the connecting slide 32; a vertical hydraulic rod 36, which is fixedly mounted on the connecting slide 32, and the output shaft of the vertical hydraulic rod 36 is fixedly connected to the connecting crossbar 33; the horizontal hydraulic rod 35 is controlled by the control system to drive the connecting slide 32, the connecting crossbar 33 and the feeding rod 34 to move horizontally, and the vertical hydraulic rod 36 is controlled by the control system to drive the connecting crossbar 33 and the feeding rod 34 to move vertically.

[0044] As can be seen from the above embodiments, when the arch plate is pressed, the arch plate needs to be placed in the middle position of the arc-shaped upper mold 6 and the arc-shaped lower mold 4 in the front-back direction. The arc-shaped upper mold 6 starts pressing along the highest position of the arch plate so that the arch plate can obtain the set reverse curvature. However, when the arch plate is loaded and unloaded by the loading and unloading mechanism 3, it is difficult to ensure that the arch plate is located in the middle position of the arc-shaped lower mold 4. Therefore, the following embodiments are proposed to solve the above problems.

[0045] In another embodiment of the present invention, the centering adjustment mechanism 5 is located between adjacent sub-molds in the arc-shaped lower mold 4. The centering adjustment mechanism 5 includes a mounting sleeve 52, which is located at the middle position of the front and rear sides of the arc-shaped lower mold 4. A drive rod 54 is spirally connected in the mounting sleeve 52, and a clearance groove 511 is provided on the drive rod 54. Specifically, the centering adjustment mechanism 5 includes a mounting base 51, which is fixedly installed on the top of the machine base 11; the mounting sleeve 52 is rotatably installed at the middle position of the top of the mounting base 51; and a clearance groove 511 is provided on the drive rod 54 to reserve the moving space of the feeding rod 34.

[0046] As a preferred technical solution of this embodiment, the front and rear sides of the mounting sleeve 52 are mirror-arranged with adjusting arms 58, and the mounting sleeve 52 and the two sets of adjusting arms 58 are all connected by transmission. Specifically, the centering adjustment mechanism 5 also includes a positioning block 510, which is fixedly installed on the mounting base plate 51 and inserted into the clearance groove 511 of the drive rod 54; the drive rod 54 and the mounting sleeve 52 are provided with mutually cooperating spiral grooves on the outside; the outside of the mounting sleeve 52 is fixedly fitted with a drive bevel gear 53; the top of the mounting base plate 51 is movably mounted with a drive shaft 55, and the end of the drive shaft 55 near the mounting sleeve 52 is fixedly fitted with a drive bevel gear 56, which meshes with the drive bevel gear 53; the adjusting arm 58 is movably mounted on the top of the mounting base plate 51, and the adjusting arm 58 and the drive shaft 55 are spirally connected; the outside of the drive shaft 55 is movably fitted with a return spring 57, which is used to drive the adjusting arm 58 and the drive rod 54 to return to their original positions.

[0047] As a preferred technical solution in this embodiment, when the drive rod 54 is pressed down, it can drive the mounting sleeve 52 to rotate and drive the two sets of adjusting arms 58 to move closer to the middle position of the arc-shaped lower mold 4. Specifically, when the drive rod 54 is pressed down, the positioning block 510 restricts the drive rod 54 to move only up and down, and through the spiral groove transmission, it can drive the mounting sleeve 52 to drive, thereby driving the active bevel gear 53, the transmission bevel gear 56 and the transmission shaft 55 to rotate, driving the two sets of adjusting arms 58 to move closer to the middle position of the arc-shaped lower mold 4. The two sets of adjusting arms 58 center and clamp the arch plate, adjusting the arch plate to the middle position of the arc-shaped lower mold 4 to ensure the quality of the arch plate pressing.

[0048] As a preferred technical solution in this embodiment, the top end of the drive rod 54 is hinged to a limiting flap 512, and the limiting flap 512 can only rotate upwards. It should be noted that the loading and unloading mechanism 3 loads and unloads materials to the arc-shaped lower mold 4 as follows: Initially, the feeding rod 34 is located outside the arc-shaped lower mold 4, and at this time, the height of the feeding rod 34 is higher than the highest point of the arc-shaped lower mold 4. After the arch plate is placed on the feeding rod 34 in a convex form, the control system first controls the horizontal hydraulic rod 35 to drive the feeding rod 34 to move horizontally, so that the feeding rod 34 drives the arch plate into the arc-shaped upper mold 6 and the arc-shaped lower mold. Between 4, the control system then controls the vertical hydraulic rod 36 to drive the feeding rod 34 down between adjacent sub-molds in the arc-shaped lower mold 4, and lowers the feeding rod 34 below the arc surface, so that the arch plate falls on the arc-shaped lower mold 4. Then the control system controls the horizontal hydraulic rod 35 and the vertical hydraulic rod 36 to drive the feeding rod 34 to reset. During the feeding process, when the feeding rod 34 moves down between adjacent sub-molds, since the limiting flap 512 can only rotate upward, the feeding rod 34 can push the drive rod 54 down through the limiting flap 512, thereby realizing the adjustment of the two sets of adjusting arms 58. The arch plate is adjusted to the middle position of the top of the arc-shaped lower mold 4; the downward movement of the feed rod 34 driving the drive rod 54, that is, the centering movement of the adjusting arm 58, is controlled by the control system. A pressure sensor is installed inside the vertical hydraulic rod 36 or in the oil circuit that cooperates with the vertical hydraulic rod 36. The pressure signal can directly reflect the load of the vertical hydraulic rod 36. During the process of the vertical hydraulic rod 36 driving the feed rod 34 downward, when the load of the vertical hydraulic rod 36 exceeds the set threshold, it indicates that the two sets of adjusting arms 58 have clamped the arch plate in the center position. At this time, the control system controls the vertical... The vertical hydraulic rod 36 stops; as the arch plate expands to both sides during pressing, after the vertical hydraulic rod 36 drives the feeding rod 34 to move down to the position, the control system controls the horizontal hydraulic rod 35 to drive the feeding rod 34 to move horizontally to reset, releasing the restriction of the feeding rod 34 on the position of the drive rod 54. The reset spring 57 applies elastic force to the adjusting arm 58 to reset the adjusting arm 58, avoiding interference when the adjusting arm 58 presses the arch plate; after the arch plate is pressed, the feeding rod 34 is driven to move horizontally and can be inserted into the clearance groove 511 of the drive rod 54, and then moves upward to support the arch plate for feeding.

[0049] As can be seen from the above embodiments, when the arch plate is placed on the arc-shaped lower mold 4 in a convex form, the two ends of the arch plate will rub against the arc-shaped lower mold 4 during pressing. The large friction force will not only affect the stable deformation of the arch plate, but also aggravate the wear of the arc-shaped lower mold 4. Therefore, the following embodiments are proposed to solve the above problems.

[0050] In another embodiment of the present invention, a roller coating assembly 59 is provided on the adjusting arm 58. The adjusting arm 58 is driven to move, causing the roller coating assembly 59 to move synchronously. When moving, the roller coating assembly 59 can apply lubricating oil to the arc-shaped lower mold 4. Specifically, the roller coating assembly 59 is slidably disposed on the front and rear sides of the adjusting arm 58 and is placed above the arc-shaped lower mold 4. When the adjusting arm 58 is driven to clamp the arch plate to center, it causes the roller coating assembly 59 to move synchronously. Under the action of gravity, the roller coating assembly 59 can adaptively move with the curvature of the arc surface of the arc-shaped lower mold 4. The roller coating assembly 59 applies lubricating oil to the arc surface of the arc-shaped lower mold 4, reducing the friction between the arch plate and the arc-shaped lower mold 4 during the pressing.

[0051] As a preferred embodiment, the roller coating assembly 59 includes an oil storage box 591, which is slidably mounted on the adjusting arm 58 for storing lubricating oil; and an oil absorption and coating assembly, which is rotatably mounted on the bottom of the oil storage box 591 for absorbing lubricating oil and coating it onto the arc-shaped lower mold 4. Specifically, the oil absorption and coating assembly includes a coating roller 592, which is rotatably mounted on the bottom of the oil storage box 591; the periphery of the coating roller 592 is nested with evenly distributed oil-absorbing cotton 593; the periphery of the coating roller 592 and the oil storage box... The bottom of the oil storage box 591 is tangent to each other, and an oil outlet slit is provided at the bottom of the oil storage box 591. When the adjusting arm 58 moves the roller coating assembly 59, the coating roller 592 can drive the oil-absorbing cotton 593 to rotate on the arc surface of the arc-shaped lower mold 4. During the rotation, the oil-absorbing cotton 593 absorbs the lubricating oil in the oil storage box 591 along the oil outlet slit and applies the lubricating oil to the arc surface of the arc-shaped lower mold 4. The periphery of the coating roller 592 is tangent to the bottom of the oil storage box 591, which can prevent the lubricating oil inside the oil storage box 591 from leaking out along the oil outlet slit.

[0052] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An arched plate flattening machine for use in an automated plate detection line of a steel plant, comprising a four-column hydraulic press (1) and a hydraulic station (2) that provides power to the four-column hydraulic press (1), characterized in that, The four-column hydraulic machine (1) is provided with an arc-shaped upper die (6) and an arc-shaped lower die (4) which cooperate with each other and are used for pressing the arch plate; Further comprising a feeding and discharging mechanism (3) which is arranged on the front side of the four-column hydraulic machine (1) and is used for feeding and discharging the arch plate; a centering and adjusting mechanism (5) which is arranged on the arc-shaped lower die (4) and is driven by the feeding and discharging mechanism (3) and is used for centering and clamping the arch plate; The feeding and discharging mechanism (3) can place the arch plate in the form of arch surface upward on the top of the arc-shaped lower die (4) under the driving; the feeding and discharging mechanism (3) can drive the centering and adjusting mechanism (5) to adjust the arch plate to the middle position of the arc-shaped lower die (4) after placing the arch plate; when the arc-shaped upper die (6) and the arc-shaped lower die (4) cooperate to press the arch plate, the arch plate can generate reverse curvature exceeding the target plane.

2. An arched plate flattening machine for use in an automated plate detection line of a steel plant as claimed in claim 1, wherein, The bottom of the arc-shaped upper die (6) is provided with an outward protruding arc-shaped surface, and the top of the arc-shaped lower die (4) is provided with an inward recessed arc-shaped surface, and the curvatures of the arc-shaped surfaces on the arc-shaped upper die (6) and the arc-shaped lower die (4) are the same.

3. An arch flattener for use in an automated plate detection line in a steel plant as claimed in claim 1, wherein, The arc-shaped upper die (6) and the arc-shaped lower die (4) are each composed of parallel arranged sub-molds, and the arc-shaped upper die (6) is provided with an adjustable middle section (7) and a quick-change mechanism (8) for adjusting the position of the adjustable middle section (7).

4. An arch flattener for use in an automated plate detection line in a steel plant as claimed in claim 1, wherein, The feeding and discharging mechanism (3) comprises a feeding rod (34) for supporting the arch plate during feeding and discharging; and a driving assembly for adjusting the horizontal and vertical positions of the feeding rod (34).

5. An arch flattener for use in an automated plate detection line in a steel plant as claimed in claim 3, wherein, The centering and adjusting mechanism (5) is located between adjacent sub-molds in the arc-shaped lower die (4), and the centering and adjusting mechanism (5) comprises a mounting sleeve (52) located at the middle position of the front and rear sides of the arc-shaped lower die (4), a driving rod (54) is spirally connected in the mounting sleeve (52), and an emptying groove (511) is formed in the driving rod (54).

6. An arched plate flattening machine for use in an automated plate detection line of a steel plant as claimed in claim 5, wherein, The front and rear sides of the mounting sleeve (52) are mirror image arranged with adjusting arms (58), and the mounting sleeve (52) and the two groups of adjusting arms (58) are in transmission connection.

7. An arch flattener for use in an automated plate detection line in a steel plant as claimed in claim 6, wherein, When the driving rod (54) is pressed downward, it can drive the mounting sleeve (52) to rotate and drive the two groups of adjusting arms (58) to move towards the middle position of the arc-shaped lower die (4).

8. An arched plate flattening machine for use in an automated plate detection line of a steel plant as claimed in claim 7, wherein, The top end of the driving rod (54) is hinged with a limiting flap (512), and the limiting flap (512) can only rotate upward.

9. An arch flattener for use in an automated plate detection line in a steel plant as claimed in claim 7, wherein, The adjusting arm (58) is provided with a roller coating assembly (59), and the adjusting arm (58) is driven to move to drive the roller coating assembly (59) to move synchronously, and the roller coating assembly (59) can apply lubricating oil to the arc-shaped lower die (4) when moving.

10. An arched plate flattening machine for use in an automated plate detection line of a steel plant as claimed in claim 9, wherein, The roller coating assembly (59) comprises an oil storage box (591) which is slidingly installed on the adjusting arm (58) and is used for storing lubricating oil; and an oil absorbing and applying assembly which is rotationally installed at the bottom of the oil storage box (591) and is used for absorbing and applying lubricating oil to the arc-shaped lower die (4).

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