Inclined roller leveling machine

Abstract

The inclined roller leveling machine comprises a base, an upper cross beam, a cross beam lifting device, an upper roller system and a lower roller system, beam lifting devices are installed on the front side and the rear side of the base respectively, the upper beam is connected to the two sets of beam lifting devices, all sets of upper leveling rollers in the upper roller system are installed on the upper beam, and all sets of lower leveling rollers in the lower roller system are installed on the base. The height and inclination of the upper beam are adjusted according to the thickness of the steel plate. The upper cross beam can be driven to integrally move by simultaneously starting the two groups of cross beam lifting devices, the distance between the upper leveling roller and the lower leveling roller is changed, and the distances at all positions are consistent. The upper cross beam can be driven to incline by starting a group of cross beam lifting devices, and the distance between the upper leveling roller and the lower leveling roller is changed. And the leveling of steel plates with different thicknesses can be adapted. And the steel plate runs between the upper leveling roller and the lower leveling roller to be leveled. According to the utility model, the applicable plate thickness range of the whole leveling machine is greatly improved.

Description

Technical Field

[0001] The utility model relates to a leveling machine used for leveling metal plates, belonging to the technical field of leveling machines. Background Art

[0002] Steel plates are usually produced by steel mills. The steel coils are unfolded by the leveling machine and then cut into a certain width specification by the slitting machine. The leveling machine is used to level the unfolded metal sheet. It is equipped with an upper roller system and a lower roller system. The upper roller system is connected to the upper frame through the upper roller system mounting plate. The upper roller system can be raised and lowered under the drive of the upper frame to adjust the gap with the lower roller system. The lower roller system is fixedly installed on the lower base through the lower roller system mounting plate, and the lower base is fixed on the equipment foundation. The upper roller system and the lower roller system are connected to the power mechanism through the universal joint coupling respectively. The power mechanism drives the upper roller system and the lower roller system to rotate, and the metal sheet runs between the upper roller system and the lower roller system to be leveled. Multiple leveling rollers (usually three) are usually set in the upper roller system and the lower roller system, and the upper and lower leveling rollers are tangent.

[0003] See also Figure 1 , the upper roller system is provided with three leveling rollers 4. In the existing leveling machine, the spacings L1 and L2 between adjacent leveling rollers 4 are consistent. In this way, even if the front and rear leveling rollers adjust the inclination angle, if the sizes of L1 and L2 are too large, it is difficult to form plastic deformation for thinner steel plates, the stress release is incomplete, and the plate shape improvement effect is poor; if the sizes of L1 and L2 are too small, the overlap of the upper and lower leveling rollers is small. When facing thick steel plates, it is also difficult to form plastic deformation, the stress release is incomplete, and the plate shape improvement effect is poor. In addition, the adjacent supporting points of the internal steel plates are too close, which makes it difficult to press down, and the overall strength requirements of the equipment are greatly increased. Even if the downward pressure is successful, the steel plate is bent too densely inside, and the driving torque of the leveling roller is extremely high, which makes the energy consumption of the entire power system rise sharply. The increase in torque will increase the load required for the coupling between the power and the leveling machine a lot, and the strength of the universal coupling is still a pain point for the entire industry. Therefore, the solution of increasing the torque is not advisable.

[0004] In summary, the existing structure of the leveling machine has poor stress release and plate shape adjustment for thinner and thicker plates, which makes the plate thickness applicable to the entire leveling machine relatively limited. Summary of the invention

[0005] The utility model aims at the deficiencies of the existing leveling machines and provides an inclined roller leveling machine with good plate thickness adaptability.

[0006] The utility model of the inclined roller leveling machine adopts the following technical solutions:

[0007] The leveling machine comprises a base, an upper crossbeam, a crossbeam lifting device, an upper roller system and a lower roller system; the front and rear sides of the base (the front side is the feed side, the rear side is the discharge side) are both equipped with crossbeam lifting devices, the upper crossbeam is connected to two groups of crossbeam lifting devices, each group of upper leveling rollers in the upper roller system is installed on the upper crossbeam, and each group of lower leveling rollers in the lower roller system is installed on the base.

[0008] The roller spacings of two adjacent groups of upper leveling rollers in the upper roller system are inconsistent. The deep pressure of the leveling rollers with a small roller spacing can cause plastic deformation of thin plates, and the deep pressure of the leveling rollers with a large roller spacing can cause plastic deformation of thick plates.

[0009] The base is provided with a lower support roller in contact with the lower leveling roller via a support seat. A lower support roller height adjustment mechanism is provided between the support seat and the base, and the lower support roller height adjustment mechanism includes an adjustment bolt and an inclined iron, the adjustment bolt is installed on the base, the inclined iron is between the support seat and the base and connected to the adjustment bolt; the adjustment bolt is rotated to push the inclined iron to move forward and backward, thereby changing the height of the support seat and its upper and lower support rollers. The lower support rollers are arranged in multiple rows along the length direction of the lower leveling roller, and the lower support rollers in each row are installed on the support seat and in contact with each lower leveling roller; in this way, each row of lower support rollers can be adjusted to different heights, so that the lower leveling roller can be slightly bent to form different roller shapes.

[0010] An upper support roller is installed on the upper crossbeam above the upper leveling roller to provide support for the upper leveling roller. The upper support rollers are arranged in multiple rows along the length direction of the upper leveling roller, and the upper support rollers in each row are installed on the upper crossbeam and contact each upper leveling roller. When the steel plate is pressed down, the support roller provides sufficient support for the leveling roller to avoid the leveling roller from being suspended in the middle and being subjected to excessive force, which may cause the leveling roller to break.

[0011] An arc-shaped positioning block is arranged on one side of the upper leveling roller on the base for providing lateral support to the upper leveling roller. The arc-shaped positioning block ensures that the roller seat of the upper leveling roller is always in contact with the base to prevent the upper leveling roller from deflecting due to force.

[0012] The beam lifting device includes a reduction motor, a hoist and a pull rod. The reduction motor is installed on the top of the upper beam. Two sets of hoists are provided, which are respectively provided on both sides of the upper beam along the length direction of the leveling roller. Each set of hoists is connected to the reduction motor through a transmission shaft and connected to the base through a pull rod. The pull rod and the base are hinged through a pin shaft. The reduction motor drives the hoist to operate through the transmission shaft, and the hoist drives the upper beam to move. The hoist is a prior art.

[0013] A clearance-eliminating spring is arranged between the upper crossbeam and the base to eliminate the axial clearance in the crossbeam lifting device (specifically, the hoist).

[0014] Adjust the height and inclination of the upper beam according to the thickness of the steel plate. Start two sets of beam lifting devices at the same time to drive the upper beam to move as a whole, change the distance between the upper leveling roller and the lower leveling roller and make the distance consistent everywhere. Start one set of beam lifting devices to drive the upper beam to tilt, change the overlap between the upper leveling roller and the lower leveling roller. To adapt to the leveling of steel plates of different thicknesses. The steel plate runs between the upper leveling roller and the lower leveling roller to be leveled.

[0015] Since the spacing between adjacent upper leveling rollers on the front side is smaller than the spacing between the two groups of upper leveling rollers on the rear side, and the overlap between the upper leveling rollers and the lower leveling rollers can be changed, the utility model can satisfy the plastic deformation of thinner steel plates at small spacings, and can also enable thicker steel plates to complete a larger downward pressure amount and form plastic deformation at larger spacings, thereby greatly improving the applicable plate thickness range of the entire leveling machine, and can greatly increase the types of leveling products without adding new equipment, increasing energy consumption, and reducing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model inclined roller leveling machine.

[0017] Figure 2 yes Figure 1 Left view of .

[0018] Among them: 1. Base, 2. Lower support roller, 3. Adjustment bolt, 4. Upper leveling roller, 5. Upper crossbeam, 6. Crossbeam lifting device, 7. Pull rod, 8. Arc positioning block, 9. Anti-backlash spring, 10. Pin shaft, 11. Lower leveling roller, 12. Slant iron, 13. Upper support roller, 14. Transmission shaft, 15. Speed ​​reducer motor, 16. Support seat. DETAILED DESCRIPTION

[0019] like Figure 1 and Figure 2 As shown, the tilting roller leveling machine of the utility model includes a base 1, an upper crossbeam 5, a crossbeam lifting device 6, an upper roller system and a lower roller system. The crossbeam lifting device 6 is installed on the upper part of the base 1, and the upper crossbeam 5 is connected to the crossbeam lifting device 6. The upper roller system includes three groups of upper leveling rollers 4, all of which are installed on the upper crossbeam 5 through roller seats. The lower roller system includes four groups of lower leveling rollers 11, all of which are installed on the base 1. In order to make the upper crossbeam 5 drive the upper leveling rollers 4 to tilt as a whole, the front and back of the base 1 (the feeding end is the front, and the discharging end is the rear; that is, Figure 1 The left side is the front, and the right side is the rear) of each beam lifting device 6 is provided. Each beam lifting device 6 adjusts the upper beam 5 to a different height to make the upper beam 5 tilted, and the height of each group of upper leveling rollers 4 on the upper beam 5 changes, so that the overlap between each upper leveling roller 4 and the lower leveling roller 11 is different. In addition, see Figure 1 The distances L1 and L2 between the front and rear sets of upper leveling rollers in the three sets of upper leveling rollers 4 are inconsistent. Figure 1 The roller spacing L1 of the first two groups of leveling rollers is small, and the roller spacing L2 of the last two groups of leveling rollers is large. The deep pressure of the leveling rollers with small roller spacing can cause plastic deformation of thin plates, and the deep pressure of the leveling rollers with large roller spacing can cause plastic deformation of thick plates.

[0020] The base 1 is provided with a lower support roller 2 through a support seat 16 for supporting a lower leveling roller 11, see Figure 2 , multiple rows can be arranged along the length direction of the lower leveling roller 11, each row is mounted on the support seat 16, and the lower support rollers 2 in each row are in contact with each lower leveling roller 11. An upper support roller 13 is installed on the upper beam 5 above the upper leveling roller 4 to provide support for the upper leveling roller 4. Multiple rows can be arranged along the length direction of the upper leveling roller 4, each row is mounted on the upper beam 5, and the upper support rollers 13 in each row are in contact with each upper leveling roller 4. When the steel plate is pressed down, the support rollers provide sufficient support for the leveling rollers to avoid the leveling rollers from being suspended in the middle. Excessive force causes the leveling rollers to break.

[0021] The base 1 is provided with a lower support roller height adjustment mechanism to provide support for the lower support roller 2 and adjust its height. Each row of lower support rollers 2 corresponds to a set of lower support roller height adjustment mechanisms. The lower support roller height adjustment mechanism includes an adjustment bolt 3 and an inclined iron 12. The adjustment bolt 3 is installed on the base 1 through its connecting nut. The inclined iron 12 is between the support seat 16 and the base 1 and connected to the adjustment bolt 3. The adjustment bolt 3 is rotated to push the inclined iron 12 to move forward and backward to achieve the purpose of adjusting the height of the lower support roller 2, so that the lower support roller 2 can be fully in contact with the lower leveling roller 11 to provide strong support. At the same time, each row of lower support rollers 2 can be adjusted to different heights, so that the lower leveling roller 11 can be slightly bent to form different roller shapes.

[0022] An arc-shaped positioning block 8 is provided on one side of the upper leveling roller 4 on the base 1 to provide lateral support for the upper leveling roller 4 to prevent the upper leveling roller 4 from deflecting due to force; the arc-shaped structure ensures that the upper leveling roller 4 can be supported when it rotates forward and backward as a whole. The two sides of the installation roller seat of the upper leveling roller 4 are arc-shaped, and its diameter is the same as the inner width of the base 1. No matter how the roller seat is deflected, it is always in contact with the base under the action of the arc-shaped positioning block 8, and will not deflect left and right.

[0023] The beam lifting device 6 includes a reduction motor 15, a hoist, a tie rod 7 and a pin 10. The reduction motor 15 is installed on the top of the upper beam 5. The hoist is a prior art (using a screw nut pair moving mechanism), and two sets are provided. The two sets of hoists share a reduction motor 15, and are respectively provided on both sides of the upper beam 5 along the length direction of the leveling roller, and each set of hoists is connected to the reduction motor 15 through a transmission shaft 14. The tie rod 7 is vertically installed on the base 1, the upper part of the tie rod 7 is connected to the hoist, and the lower part of the tie rod 7 is connected to the pin 10, and the pin 10 is fixed on the base 1. The reduction motor 15 drives the hoist to operate through the transmission shaft 14, and the hoist drives the upper beam 5 to move.

[0024] A clearance-eliminating spring 9 is arranged between the upper crossbeam 5 and the base 1. The clearance-eliminating spring 9 is passed through the pull rod 7 and is used to eliminate the axial clearance when the elevator is running (specifically the clearance between the screw and the nut in the elevator), ensuring that the clearance between the upper leveling roller 4 and the lower leveling roller 11 remains consistent before and after the steel plate enters the leveling machine, thereby ensuring the consistency of the front and rear clearances.

[0025] The operation process of the above-mentioned inclined roller leveling machine is described as follows.

[0026] Adjust the height and inclination of the upper beam 5 according to the thickness of the steel plate. If only the height of the upper beam 5 is adjusted (the spacing between the upper leveling roller 4 and the lower leveling roller 11 is the same), the reduction motors 15 in the two groups of beam lifting devices 6 are started at the same time, and the elevator is driven by the transmission shaft 14 to operate, and then the elevator drives the upper beam 5 to move as a whole. The upper beam 5 rises when the reduction motor 15 rotates forward, and the upper beam 5 drops when the reduction motor 15 rotates reversely. If the upper beam 5 needs to be tilted, that is, the spacing between each group of upper leveling rollers 4 and the lower leveling rollers 11 is different, only one group of beam lifting devices 6 is started to drive one side of the upper beam 5 to move. Usually it is from the rear side (the discharge end is the rear side), Figure 1 A group of beam lifting devices 6 drive the upper beam 5 to rise, so that the front side of the upper beam 5 (the feeding end is the front side, Figure 1 The left side in the middle is tilted downward, so that the distances between the three groups of upper leveling rollers 4 and lower leveling rollers 11 increase successively from front to back.

[0027] The upper leveling roller 4 and the lower leveling roller 11 are connected to the power mechanism through a universal joint coupling, which is the prior art and will not be described in detail. The power mechanism drives the upper leveling roller 4 and the lower leveling roller 11 to rotate, and the steel plate runs between the upper leveling roller 4 and the lower leveling roller 11 to be leveled.

[0028] Since the spacing L1 between the two groups of upper leveling rollers on the front side is different from the spacing L2 between the two groups of upper leveling rollers on the rear side, and the upper crossbeam is tilted to change the spacing between the upper leveling rollers 4 and the lower leveling rollers 11, this can not only meet the needs of thinner steel plates to complete plastic deformation between small spacings, but also allow thicker steel plates to complete a larger amount of downward pressure between larger spacings to form plastic deformation, which provides good support for stress release and plate shape trimming, greatly improving the applicable plate thickness range of the entire leveling machine.

Claims

1. An inclined roller leveling machine, characterized in that: It includes a base, an upper crossbeam, a crossbeam lifting device, an upper roller system and a lower roller system; the front and rear sides of the base are equipped with crossbeam lifting devices, the upper crossbeam is connected to two groups of crossbeam lifting devices, each group of upper leveling rollers in the upper roller system is installed on the upper crossbeam, and each group of lower leveling rollers in the lower roller system is installed on the base.

2. The inclined roller leveling machine according to claim 1 is characterized in that: The roller distances between each two adjacent groups of upper leveling rollers in the upper roller system are inconsistent.

3. The inclined roller leveling machine according to claim 1 is characterized in that: A lower supporting roller in contact with the lower leveling roller is installed on the base through a supporting seat.

4. The inclined roller leveling machine according to claim 3 is characterized in that: A lower support roller height adjustment mechanism is provided between the support seat and the base, and the lower support roller height adjustment mechanism comprises an adjustment bolt and an inclined iron, wherein the adjustment bolt is installed on the base, and the inclined iron is located between the support seat and the base and connected to the adjustment bolt.

5. The inclined roller leveling machine according to claim 3 is characterized in that: The lower support rollers are arranged in multiple rows along the length direction of the lower leveling rollers, and the lower support rollers in each row are installed on the support seat and are in contact with each lower leveling roller.

6. The inclined roller leveling machine according to claim 1 is characterized in that: An upper support roller is installed on the upper cross beam above the upper leveling roller.

7. The inclined roller leveling machine according to claim 6 is characterized in that: The upper support rollers are arranged in multiple rows along the length direction of the upper leveling rollers, and the upper support rollers in each row are installed on the upper crossbeam and contact each upper leveling roller.

8. The inclined roller leveling machine according to claim 1 is characterized in that: An arc-shaped positioning block is arranged on one side of the upper leveling roller on the base.

9. The inclined roller leveling machine according to claim 1, characterized in that: The beam lifting device includes a reduction motor, a hoist and a pull rod. The reduction motor is installed on the top of the upper beam. Two sets of hoists are arranged, respectively arranged on both sides of the upper beam along the length direction of the leveling roller. Each set of hoists is connected to the reduction motor through a transmission shaft and is connected to the base through a pull rod. The pull rod and the base are hinged through a pin shaft.

10. The inclined roller leveling machine according to claim 1, characterized in that: A backlash-eliminating spring is arranged between the upper cross beam and the base.

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