An overall multi-linear layout leveling machine roll system

Abstract

The present invention relates to a roll system of an integral multi-linear layout leveller, which includes an upper roll system and a lower roll system. The upper roll system includes upper working rolls and upper backup rolls, and the lower roll system includes lower backup rolls and lower working rolls. The diameters of the upper working rolls are equal, and the axial center heights of the first upper working roll from the inlet to the fourth upper working roll decrease in sequence, and the axial center heights of the fourth upper working roll to the last upper working roll at the outlet are equal. The diameters of the lower working rolls are the same and their axes are in the same plane. Each upper working roll is in tangential contact with two upper backup rolls, and the diameters of the upper backup rolls are equal. The axial center heights of the first upper backup roll at the inlet and the second upper backup roll at the inlet are equal, and the axial center heights of the first upper backup roll at the end of the outlet and the second upper backup roll at the end of the outlet are equal. The beneficial effects of the present invention are: forming a multi-linear feed roll gap that gradually decreases, so that the sheet metal reaches the maximum bending amount required for leveling; forming a straight leveling roll gap that gradually increases, and realizing a reduction in the difference in the residual bending degree after the sheet metal rebounds.

Description

1. Technical field

[0002] The invention belongs to the technical field of metal sheet forming and processing equipment, and in particular relates to an integral multi-linear layout leveling machine roller system. (II) Background technology

[0004] The sheet metal leveling machine uses the continuously rotating working rollers with a certain roller gap shape to drive the sheet metal to achieve the bending degree from large to small in the roller gap, so that the residual bending of the sheet metal after rebounding is consistent and close to zero to achieve the purpose of sheet metal leveling. The existing integral beam sheet metal leveling machine has the same diameter of all working rollers, and the center distance of all upper working rollers and all lower working rollers is also the same; the lower generatrix of each upper working roller and the upper generatrix of each lower working roller are arranged in two planes respectively, and the plate leveling roller gap is achieved by forming an angle between the two planes, and the roller gap form is simple; the structure is compact, and the roller diameter can be made smaller, which is suitable for the leveling processing of thinner sheets. When the original unevenness of the sheet metal is large or the yield limit of the sheet metal is large, a large bending amount needs to be achieved to ensure that the sheet metal obtains a larger plastic deformation section on the sheet metal thickness after the reverse bending, so as to achieve sheet metal leveling. In the sheet metal leveling process of the integral beam sheet metal leveling machine, the roller gap on the sheet metal inlet side is the smallest, and the roller gap on the sheet metal outlet side is the largest. When the roll gap on the inlet side of the leveling machine is too small, the bite friction provided by the working roll is smaller than the reverse thrust generated by the workpiece head hitting the roll, resulting in the inability to feed the plate. (III) Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, the present invention provides an overall multi-linear layout leveling machine roller system, which not only improves the feeding effect, but also meets the requirements of a larger bending amount of the plate, and realizes the leveling of high yield limit plates and plates with larger original unevenness.

[0007] The present invention is achieved through the following technical solutions:

[0008] An integral multi-linear layout leveling machine roller system includes an upper roller system and a lower roller system, the upper roller system includes an upper working roller and an upper supporting roller, and the lower roller system includes a lower supporting roller and a lower working roller, wherein the upper working rollers have equal diameters, and the axial heights decrease successively from the first upper working roller at the entrance to the fourth upper working roller, and the axial heights from the fourth upper working roller to the end upper working roller at the exit are equal, the lower working rollers have the same diameters and the axes are in the same plane, each upper working roller is in tangential contact with two upper supporting rollers, the upper supporting rollers have equal diameters, the axial heights of the first upper supporting roller at the entrance and the second upper supporting roller at the entrance are equal, and the axial heights of the first upper supporting roller at the end of the exit and the second upper supporting roller at the end of the exit are equal.

[0009] The upper supporting rollers are arranged in a staggered manner and installed on the upper supporting roller seat.

[0010] The lower working roll is in tangential contact with two lower supporting rolls. The axes of the lower supporting rolls are in the same plane, and the lower supporting rolls are staggeredly arranged and installed on the lower supporting roll seats.

[0011] The diameters of the lower supporting rolls are equal.

[0012] The diameter of the lower working roll is equal to that of the upper working roll.

[0013] The beneficial effects of the present invention are as follows: a multi-linear feeding roll gap that gradually decreases is formed. When straightening a plate, the plate mainly bites at the entrance of the roll system of the straightening machine, and the reduction amount is gradually increased during the biting process, so that the plate reaches the maximum bending amount required for straightening; a straightening roll gap that gradually increases is formed, so as to reduce the difference in the residual bending degree after the springback of the plate and make it tend to be consistent; the straightening purpose of plates with a high yield limit and plates with a large original flatness is achieved. (IV) Description of the Drawings

[0015] The present invention will be further described below with reference to the drawings.

[0016] Att Figure 1 is a schematic structural diagram of the present invention;

[0017] Att Figure 2 is a schematic structural diagram of the prior art;

[0018] In the figure, 1 is the upper roll system, 2 is the lower roll system, 3 is the upper working roll, 4 is the upper supporting roll, 5 is the lower supporting roll, 6 is the lower working roll, 7 is the upper supporting roll seat, 8 is the lower supporting roll seat, and 9 is the plate. (V) Specific Embodiments

[0020] The attached drawing is a specific embodiment of the present invention. This embodiment includes an upper roll system 1 and a lower roll system 2. The upper roll system 1 includes an upper working roll 3 and an upper supporting roll 4. The lower roll system 2 includes a lower supporting roll 5 and a lower working roll 6. The diameters of the upper working rolls 3 are equal. The axial center heights of the first upper working roll 3 to the fourth upper working roll 3 from the entrance gradually decrease, and the axial center heights of the fourth upper working roll 3 to the last upper working roll 3 at the exit are equal. The diameters of the lower working rolls 6 are the same and their axes are in the same plane. Each upper working roll 3 is in tangential contact with two upper supporting rolls 4. The diameters of the upper supporting rolls 4 are equal. The axial center heights of the first upper supporting roll 4 and the second upper supporting roll 4 at the entrance are equal, and the axial center heights of the first upper supporting roll 4 and the second upper supporting roll 4 at the end of the exit are equal. The upper supporting rolls 4 are staggeredly arranged and installed on the upper supporting roll seats 7. The lower working roll 6 is in tangential contact with two lower supporting rolls 5. The axes of the lower supporting rolls 5 are in the same plane. The lower supporting rolls 5 are staggeredly arranged and installed on the lower supporting roll seats 8. The diameters of the lower supporting rolls 5 are equal. The diameter of the lower working roll 6 is equal to that of the upper working roll 3.

[0021] Adopt the roll system of the integral multi-linear layout leveling machine of the present invention. All the lower working rolls 6 in the lower roll system 2 have the same diameter, and their axes are in the same working plane. The upper generatrices of all the lower working rolls 6 form the lower plane of the roll gap of the leveling roll gap. Each lower working roll 6 is in tangential contact with two lower supporting rolls 5 on the same lower supporting roll seat 8 to provide a supporting force for the lower working roll 6. The lower supporting rolls 5 are arranged in a staggered manner on the lower supporting roll seats 8, and the number of lower supporting rolls 5 on each lower supporting roll seat 8 is one more than the number of lower working rolls 6. All the upper working rolls 3 in the upper roll system 1 have the same diameter. The axis position of the first inlet upper working roll 3 is higher than the axis position of the second inlet upper working roll 3. The axis position of the second inlet upper working roll 3 is higher than the axis position of the third inlet upper working roll 3. The axis position of the third inlet upper working roll 3 is higher than the axis position of the fourth inlet upper working roll 3. From the fourth inlet upper working roll 3 to the first outlet upper working roll 3, the axes of all the remaining upper working rolls 3 are in the same plane and have the same diameter as all the lower working rolls 6. The lower generatrices of the first inlet upper working roll 3, the second upper working roll 3, the third upper working roll 3, and the fourth upper working roll 3 form a multi-linear feeding roll gap with the lower plane of the roll gap, and the lower generatrices of the remaining upper working rolls 3 form a straight leveling roll gap with the lower plane of the roll gap. Each upper working roll 3 is in tangential contact with two upper supporting rolls 4 on the same upper supporting roll seat 7. All the upper supporting rolls 4 have the same diameter, and the axial center position of the outermost upper supporting roll 4 is the same as the axial center height of the second upper supporting roll 4 from both ends. The upper supporting rolls 4 are arranged in a staggered manner on the upper supporting roll seats 7, and the number of upper supporting rolls 4 on each upper supporting roll seat 7 is one more than the number of upper working rolls 3.

[0022] When the upper roll system 1 is in an inclined state during sheet leveling, the roll gap opening gradually decreases from large to small. When reaching the position of the fourth upper working roll 3, the roll gap is the smallest, reaching the maximum bending amount, and realizing the feeding process of sheets with a higher yield limit. Similarly, for sheets with a large original flatness deviation, applying the roll system of the integral multi-linear layout leveling machine of the present invention, the feeding method of gradually biting in facilitates the realization of the feeding process. From the fourth upper working roll 3 to the last upper working roll 3, the roll gap opening gradually increases, realizing that the difference in the residual bending degree after springback decreases and tends to be consistent, achieving the leveling effect, and thus realizing the leveling of sheets with a higher yield limit and sheets with a large original flatness deviation.

Claims

1. An overall multi-linear layout leveling machine roll system, including an upper roll system (1) and a lower roll system (2), the upper roll system (1) includes an upper working roll (3) and an upper support roll (4), the lower roll system (2) includes a lower support roll (5) and a lower working roll (6), and the characteristics are as follows: The upper working rolls (3) have equal diameters. From the first upper working roll (3) at the inlet to the fourth upper working roll (3), the axial center heights decrease in sequence. The axial center heights of the fourth upper working roll (3) to the last upper working roll (3) at the outlet are equal. The lower working rolls (6) have the same diameter and their axes are in the same plane. Each upper working roll (3) is in tangential contact with two upper supporting rolls (4). The upper supporting rolls (4) have equal diameters. The axial center heights of the first upper supporting roll (4) at the inlet and the second upper supporting roll (4) at the inlet are equal. The axial center heights of the first upper supporting roll (4) at the end of the outlet and the second upper supporting roll (4) at the end of the outlet are equal. The upper supporting rolls (4) are staggeredly arranged and installed on the upper supporting roll seats (7). The lower working rolls (6) are in tangential contact with two lower supporting rolls (5). The axes of the lower supporting rolls (5) are in the same plane. The lower supporting rolls (5) are staggeredly arranged and installed on the lower supporting roll seats (8). The lower supporting rolls (5) have equal diameters. The diameters of the lower working rolls (6) are equal to the diameters of the upper working rolls (3).

Images