Straightening device for metal strip machining

Abstract

The invention relates to the field of metal strip processing, in particular to a straightening device for metal strip processing, which comprises a swing adjusting mechanism used for adjusting the straightening state of a straightening roll assembly, an internal shrinkage mechanism and a follow-up mechanism matched with the swing adjusting mechanism to improve transmission power and buffer, each straightening roller assembly comprises a first straightening roller and a second straightening roller, the first straightening rollers and the second straightening rollers are installed on roller shafts, the swing adjusting mechanisms are installed at the ends of the first straightening rollers, the inward shrinkage mechanisms are installed between the first straightening rollers and the swing adjusting mechanisms, and the follow-up mechanisms are installed outside the swing adjusting mechanisms. The straightening device is used for solving the technical problems that in the straightening process of a metal belt, the straightening effect is not ideal due to the fact that the strain effect of a large-change part or a part of obviously-concave-convex part is affected, and the surface is scratched due to the fact that an existing device slips when encountering a large-convex part.

Description

Technical Field

[0001] The invention relates to the field of metal strip processing, and in particular to a straightening device for metal strip processing. Background Art

[0002] In the field of metal strip processing, it is necessary to straighten it before winding it. The roller straightening device is mainly composed of multiple straightening rollers, which are usually arranged in a staggered manner. The number of straightening rollers varies according to factors such as straightening accuracy and strip properties, and is generally 5-21. The strip passes between these straightening rollers, and its shape is corrected by the bending force applied by the rollers to the strip. From a mechanical point of view, when the strip passes through the straightening rollers, each pair of adjacent straightening rollers will cause the strip to bend in the opposite direction. The cumulative effect of multiple reverse bends gradually reduces the original bend of the strip, ultimately achieving the purpose of straightening.

[0003] In the prior art, a Chinese invention with publication number CN117225934A discloses an aluminum strip straightening device, which utilizes stress treatment at a certain point of the aluminum strip to ensure the straightening of the strip. Although such schemes and equipment can effectively treat stress in certain areas, in actual production, due to uncontrollable factors in transportation and production and processing, certain parts may occasionally have larger protrusions and curling on both sides. If the protrusion is larger, the extrusion stress direction of the extrusion roller and the strip is more concentrated. Because the stress direction is single, the strip is extruded and deformed during cooperation, and rebound occurs. In addition, if the larger protrusion occurs, a jamming phenomenon occurs, causing slipping and scratching problems. Summary of the invention

[0004] The present invention provides a straightening device for metal strip processing to solve the technical problems that in the process of straightening the metal strip, the strain effect is affected due to the presence of large changes in parts or parts with obvious unevenness, resulting in unsatisfactory straightening effect, and the surface is scratched due to the slippage of existing equipment when encountering large protruding parts.

[0005] A straightening device for processing metal strips of the present invention adopts the following technical solution: it includes a support mechanism for installation and support, a power traction mechanism for providing traction force for the metal strip, and a straightening roller assembly for straightening the metal strip, the power traction mechanism is installed at the discharge end of the support mechanism, the straightening roller assembly is arranged inside the support mechanism, and also includes a swing adjustment mechanism, a retracting mechanism and a follower mechanism for cooperating with the swing adjustment mechanism to improve the transmission power and buffering for adjusting the straightening state of the straightening roller assembly, the straightening roller assembly is composed of a plurality of groups of roller pairs, each group of the straightening roller assembly includes a first straightening roller and a second straightening roller, the first straightening roller and the second straightening roller are both installed on a roller shaft, the swing adjustment mechanism is installed at the end of the first straightening roller, the retracting mechanism is installed between the first straightening roller and the swing adjustment mechanism, and the follower mechanism is installed outside the swing adjustment mechanism; The swing adjustment mechanism includes a fixed sleeve, a movable block is slidably connected inside the fixed sleeve, a movable ball head is movably connected inside the movable block, the movable ball head is fixedly connected to one end of the roller shaft on the first straightening roller, a limit matching ring of the retraction mechanism is arranged between the inner side of the movable ball head and the first straightening roller, a flip limit frame is slidably matched outside the limit matching ring, and the outer top of the fixed sleeve is connected to the gap adjustment mechanism through the follow-up mechanism.

[0006] Furthermore, the follower mechanism includes a damping rod, the movable end of the damping rod is connected to the fixed sleeve, the fixed end of the damping rod is connected to a joint, an extrusion block is installed on the inner side of the joint corresponding to the gap adjustment mechanism, and the extrusion block can drive the pressure receiving part of the gap adjustment mechanism after rotation, the outer movable sleeve of the damping rod is connected to a sleeve rod, one end of the sleeve rod is fixedly connected to the fixed sleeve, and the joint is rotatably connected to the support mechanism through a pin shaft.

[0007] Furthermore, the gap adjustment mechanism is installed on the second straightening roller, and the gap adjustment mechanism includes a hollow oil cylinder, which is installed inside the supporting mechanism. The center of the hollow oil cylinder is connected with a lifting adjustment bolt through a thread, the bottom of the lifting adjustment bolt is connected to the lifting seat, and the pressure supply end of the hollow oil cylinder is connected to the pressure receiving piece.

[0008] Furthermore, a ball head connection seat is installed on one end of the roller shaft on the first straightening roller away from the fixed sleeve, and the ball head connection seat includes a ball head seat and a ball head. The ball head is fixedly connected to the roller shaft, and the ball head is rotatably connected to the ball head seat.

[0009] Furthermore, a groove for limiting the sliding of the movable block is arranged inside the fixing sleeve, and a protrusion is arranged on the movable block, and the protrusion of the movable block cooperates with the fixing sleeve through a buffer.

[0010] Furthermore, the size of the protrusions at both ends of the movable block is smaller than the size of the movable groove in the fixed sleeve, and the protrusions can move vertically and longitudinally in the movable groove.

[0011] Furthermore, the limiting matching ring is fixedly connected to the roller shaft, and a through groove for limiting the sliding of the limiting matching ring is formed on the flip limiting frame, the size of the through groove gradually decreases from left to right, and a friction part is provided on the contact surface between the through groove and the limiting matching ring.

[0012] Furthermore, the friction member is made of hard rubber.

[0013] Furthermore, the buffer member between the movable block and the fixed sleeve is an arc-shaped spring piece.

[0014] Furthermore, the second straightening roller and the lifting seat are matched via a self-aligning bearing.

[0015] The beneficial effects of the present invention are as follows: the present invention adopts basic stress in the area of ​​conventional deformation straightening through the cooperation of the swing adjustment mechanism, the follow-up mechanism and the retracting mechanism. When encountering a part with obvious concave and convex surfaces, the extrusion stress of the concave and convex surfaces can be used to prompt the straightening roller assembly to adjust its state, thereby adding oblique rubbing to the original extrusion stress, thereby providing oblique tensile stress to the metal strip and increasing the extrusion stress, applying multi-directional deformation forces to the concave and convex areas, prompting the concave and convex areas to be easily flattened, thereby improving work efficiency and avoiding the rebound of the metal strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a structural schematic diagram of an embodiment of a straightening device for metal strip processing of the present invention; Figure 2 It is a partial structural schematic diagram of an embodiment of a straightening device for metal strip processing of the present invention; Figure 3 It is a schematic diagram of the positional relationship between the swing adjustment mechanism and the follower mechanism of an embodiment of a straightening device for metal strip processing of the present invention; Figure 4 A schematic diagram of the internal structure of a swing adjustment mechanism of an embodiment of a straightening device for metal strip processing of the present invention; Figure 5A first structural schematic diagram of a swing adjustment mechanism in a disassembled state of an embodiment of a straightening device for metal strip processing of the present invention; Figure 6 A second structural schematic diagram of a swing adjustment mechanism in a disassembled state of an embodiment of a straightening device for metal strip processing of the present invention; Figure 7 A front view of an initial state of a first straightening roller of an embodiment of a straightening device for processing a metal strip according to the present invention; Figure 8 It is a front view of a first straightening roller in a flipping state of an embodiment of a straightening device for processing metal strips of the present invention; Fig. 9 A top view of an initial state of a first straightening roller of an embodiment of a straightening device for processing a metal strip according to the present invention; Fig.10 A top view of a first straightening roller in a flipped state of an embodiment of a straightening device for processing a metal strip according to the present invention; Fig.11 A schematic diagram of the structure of the retracting mechanism of an embodiment of a straightening device for metal strip processing according to the present invention; Fig.12 It is a schematic structural diagram of the cooperation state of the swing adjustment mechanism and the follower mechanism of an embodiment of a straightening device for metal strip processing of the present invention; Fig.13 A top view of the interior of a swing adjustment mechanism of an embodiment of a straightening device for metal strip processing according to the present invention; Fig.14 This is a front view of the interior details of a swing adjustment mechanism of an embodiment of a straightening device for metal strip processing of the present invention.

[0018] In the figure: 1. supporting mechanism; 2. power traction mechanism; 3. straightening roller assembly; 4. gap adjustment mechanism; 5. swing adjustment mechanism; 6. follow-up mechanism; 7. retracting mechanism; 31. first straightening roller; 32. second straightening roller; 33. roller shaft; 41. lifting seat; 42. lifting adjustment bolt; 43. extrusion piston rod; 44. hollow cylinder; 51. fixed sleeve; 52. movable block; 53. movable ball head; 54. ball head connecting seat; 61. sleeve rod; 62. damping rod; 63. joint; 64. extrusion block; 71. flip limit frame; 72. limit matching ring; 73. speed regulating plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] An embodiment of a straightening device for metal strip processing of the present invention is as follows Figures 1 to 14 As shown, it includes a support mechanism 1 for installation and support, a power traction mechanism 2 for providing traction force for the metal strip, and a straightening roller assembly 3 for straightening the metal strip, the power traction mechanism 2 is installed at the discharge end of the support mechanism 1, and the straightening roller assembly 3 is arranged on the inner side of the support mechanism 1, and also includes a swing adjustment mechanism 5 and a retracting mechanism 7 for adjusting the straightening state of the straightening roller assembly 3, and a follower mechanism 6 for cooperating with the swing adjustment mechanism 5 to improve the transmission power and buffering, the straightening roller assembly 3 is composed of a plurality of groups of roller pairs, each group of straightening roller assemblies 3 includes a first straightening roller 31 and a second straightening roller 32, the first straightening roller 31 and the second straightening roller 32 are both installed on a roller shaft 33, the swing adjustment mechanism 5 is installed at the end of the first straightening roller 31, the retracting mechanism 7 is installed between the first straightening roller 31 and the swing adjustment mechanism 5, and the follower mechanism 6 is installed outside the swing adjustment mechanism 5; The swing adjustment mechanism 5 includes a fixed sleeve 51, a movable block 52 is slidably connected inside the fixed sleeve 51, a movable ball head 53 is movably connected inside the movable block 52, the movable ball head 53 is fixedly connected to one end of the roller shaft 33 on the first straightening roller 31, a limit matching ring 72 of the retraction mechanism 7 is arranged between the inner side of the movable ball head 53 and the first straightening roller 31, the limit matching ring 72 is slidably matched with a flip limit frame 71 outside, and the outer top of the fixed sleeve 51 is connected to the gap adjustment mechanism 4 through the follower mechanism 6.

[0021] In this embodiment, the follower mechanism 6 includes a damping rod 62, the movable end of the damping rod 62 is connected to the fixed sleeve 51, the fixed end of the damping rod 62 is connected to a joint 63, the inner side of the joint 63 is installed with an extrusion block 64 corresponding to the gap adjustment mechanism 4, and the extrusion block 64 can drive the pressure receiving part of the gap adjustment mechanism 4 after rotation, the outer movable sleeve of the damping rod 62 is connected to the sleeve rod 61, one end of the sleeve rod 61 is fixedly connected to the fixed sleeve 51, and the joint 63 is rotatably connected to the support mechanism 1 through a pin shaft. The joint 63 serves as a fulcrum, which is used to provide a rotation center when the swing adjustment mechanism 5 and the follower mechanism 6 rotate, and can ensure that the extrusion block 64 rotates to apply pressure to the extrusion piston rod 43.

[0022] In this embodiment, the gap adjustment mechanism 4 is installed on the second straightening roller 32, and the gap adjustment mechanism 4 includes a hollow cylinder 44, which is installed inside the support mechanism 1. The center of the hollow cylinder 44 is connected with a lifting adjustment bolt 42 through a thread, and the bottom of the lifting adjustment bolt 42 is connected to the lifting seat 41, and the pressure supply end of the hollow cylinder 44 is connected to the pressure receiving member.

[0023] In this embodiment, a ball head connecting seat 54 is installed on the roller shaft 33 of the first straightening roller 31 at one end away from the fixed sleeve 51. The ball head connecting seat 54 includes a ball head seat and a ball head. The ball head is fixedly connected to the roller shaft 33, and the ball head is rotatably connected to the ball head seat. When one end of the first straightening roller 31 is flipped and adjusted by the movable ball head 53, the ball head at one end of the ball head connecting seat 54 provides support and limitation, thereby ensuring the supporting effect of the first straightening roller 31.

[0024] In this embodiment, a groove for limiting the sliding of the movable block 52 is provided inside the fixed sleeve 51, and a protrusion is provided on the movable block 52. The protrusion of the movable block 52 cooperates with the fixed sleeve 51 through a buffer, and the movable range of the movable block 52 is limited by the groove.

[0025] In this embodiment, if Fig.13 , Fig.14 As shown, the size of the protrusions at both ends of the movable block 52 is smaller than the size of the movable groove in the fixed sleeve 51, and the protrusions can move vertically and longitudinally in the movable groove.

[0026] In this embodiment, if Fig.11 As shown, the limiting matching ring 72 is fixedly connected to the roller shaft 33, and a through groove for limiting the sliding of the limiting matching ring 72 is formed on the flip limiting frame 71. The size of the through groove gradually decreases from left to right, and a friction piece is provided on the contact surface between the through groove and the limiting matching ring 72.

[0027] In this embodiment, the friction member is hard rubber, which is used to provide friction for the limiting matching ring 72. When the friction becomes larger, the rotation of the first straightening roller 31 gradually slows down, which is slower than the transmission speed of the metal belt, making it easier to handle the protrusion.

[0028] In this embodiment, the buffer member between the movable block 52 and the fixed sleeve 51 is an arc-shaped spring sheet, so as to provide resistance and restoring power when the movable block 52 slides.

[0029] In this embodiment, the second straightening roller 32 and the lifting seat 41 are matched through a self-aligning bearing.

[0030] The working principle is as follows: first, the height of the second straightening roller 32 is adjusted according to the metal strip to be straightened, that is, the lifting adjustment bolt 42 is rotated to adjust the height of the lifting seat 41, thereby adjusting the initial spacing between the first straightening roller 31 and the second straightening roller 32 to ensure the straightening effect of the strip; After starting the equipment, the front end of the strip is first passed through the three sets of straightening roller assemblies 3, and the power at one end of the power traction mechanism 2 is used to pull the metal strip to straighten it. During the straightening process, the metal strip is straightened during the reciprocating bending and extrusion process of the first straightening roller 31 and the second straightening roller 32; When a larger bulge occurs on the metal strip, the bulge impacts the first straightening roller 31. At this time, because the lateral extrusion pressure of the first straightening roller 31 increases instantly, the first straightening roller 31 has lateral movement under the restriction of the flip limit frame 71 and the limit matching ring 72. At this time, the roller shaft 33 of the first straightening roller 31 located at one end of the flip limit frame 71 slides inside the limit matching ring 72 under the restriction of the limit matching ring 72. While sliding, the resistance of the speed regulating plate 73 provides resistance to the limit matching ring 72 in the reverse direction, thereby decelerating the roller shaft 33 and the first straightening roller 31, causing gradually increasing friction between the first straightening roller 31 and the metal strip. At the same time, because the other end of the first straightening roller 31 is restricted by the ball head connecting seat 54 and only flips but does not move laterally, the first straightening roller 31 is Fig. 9 Change Fig.10 The first straightening roller 31 also flips backward and upward because the through slot on the flip limit frame 71 is an obliquely upward slot. The first straightening roller 31 flips backward and upward while driving the movable block 52 and the fixed sleeve 51 to move laterally. Since the other end of the damping rod 62 is connected to the support mechanism 1 through a pin shaft, the damping rod 62 is driven by the fixed sleeve 51 to flip. The fixed sleeve 51 and the movable block 52 also flip. The movable end of the damping rod 62 shrinks toward the inside of the fixed end and is subjected to a damping force while shrinking, providing elastic damping for the fixed sleeve 51, the movable block 52 and the roller shaft 33. At the same time, due to the flipping of the damping rod 62, the damping rod 62 drives the extrusion block 64 to flip. After the extrusion block 64 flips, it squeezes the pressure receiving part and squeezes the piston rod 43, prompting the piston rod of the lifting seat 41 to extend, thereby driving one end of the second straightening roller 32 to flip downward, and cooperate with the first straightening roller 31 flipped upward and backward to provide the metal strip with staggered friction stress and increased extrusion force. The raised part undergoes mixed deformation under the bidirectional action of the oblique stress and the extrusion stress, thereby improving the deformation straightening effect, and the first straightening roller 31 and the second straightening roller 32 change slowly during the change process, so as to avoid the large raised part of the metal strip being subjected to resistance and causing continuous slippage affecting the processing process, and the metal strip surface being scratched in a large area after slipping.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A straightening device for processing metal strips, comprising a support mechanism (1) for mounting and supporting, a power traction mechanism (2) for providing traction force for the metal strip, and a straightening roller assembly (3) for straightening the metal strip, wherein the power traction mechanism (2) is mounted at the discharge end of the support mechanism (1), and the straightening roller assembly (3) is arranged inside the support mechanism (1), characterized in that: The straightening roller assembly (3) further comprises a swing adjustment mechanism (5), a retracting mechanism (7) and a follower mechanism (6) for cooperating with the swing adjustment mechanism (5) to improve the transmission power and buffering. The straightening roller assembly (3) is composed of a plurality of groups of rollers, each group of the straightening roller assembly (3) comprises a first straightening roller (31) and a second straightening roller (32), the first straightening roller (31) and the second straightening roller (32) are both mounted on a roller shaft (33), the swing adjustment mechanism (5) is mounted at the end of the first straightening roller (31), the retracting mechanism (7) is mounted between the first straightening roller (31) and the swing adjustment mechanism (5), and the follower mechanism (6) is mounted between the first straightening roller (31) and the swing adjustment mechanism (5). ) is installed on the outside of the swing adjustment mechanism (5); the swing adjustment mechanism (5) comprises a fixed sleeve (51), a movable block (52) is slidably connected inside the fixed sleeve (51), a movable ball head (53) is movably connected inside the movable block (52), the movable ball head (53) is fixedly connected to one end of the roller shaft (33) on the first straightening roller (31), a limiting matching ring (72) of the retracting mechanism (7) is arranged between the inner side of the movable ball head (53) and the first straightening roller (31), the outer side of the limiting matching ring (72) is slidably matched with a flip limiting frame (71), and the outer top of the fixed sleeve (51) is connected to the gap adjustment mechanism (4) through the follower mechanism (6).

2. A straightening device for metal strip processing according to claim 1, characterized in that: The follower mechanism (6) comprises a damping rod (62), the movable end of the damping rod (62) being connected to the fixed sleeve (51), the fixed end of the damping rod (62) being connected to a joint (63), an extrusion block (64) being installed on the inner side of the joint (63) corresponding to the gap adjustment mechanism (4), the extrusion block (64) being able to drive the pressure receiving member of the gap adjustment mechanism (4) after rotation, the outer side of the damping rod (62) being movably sleeved with a sleeve rod (61), one end of the sleeve rod (61) being fixedly connected to the fixed sleeve (51), and the joint (63) being rotatably connected to the support mechanism (1) via a pin shaft.

3. A straightening device for metal strip processing according to claim 2, characterized in that: The gap adjustment mechanism (4) is mounted on the second straightening roller (32), and comprises a hollow oil cylinder (44). The hollow oil cylinder (44) is mounted inside the support mechanism (1), and a lifting adjustment bolt (42) is threadedly connected to the center of the hollow oil cylinder (44). The bottom of the lifting adjustment bolt (42) is connected to the lifting seat (41), and the pressure supply end of the hollow oil cylinder (44) is connected to a pressure receiving member.

4. A straightening device for metal strip processing according to claim 1, characterized in that: A ball head connection seat (54) is mounted on one end of the roller shaft (33) on the first straightening roller (31) away from the fixing sleeve (51), the ball head connection seat (54) comprising a ball head seat and a ball head, the ball head being fixedly connected to the roller shaft (33), and the ball head being rotatably connected to the ball head seat.

5. A straightening device for metal strip processing according to claim 4, characterized in that: A groove for limiting the sliding of the movable block (52) is provided inside the fixed sleeve (51), and a protrusion is provided on the movable block (52). The protrusion of the movable block (52) cooperates with the fixed sleeve (51) via a buffer.

6. A straightening device for metal strip processing according to claim 5, characterized in that: The size of the protrusions at both ends of the movable block (52) is smaller than the size of the movable groove in the fixed sleeve (51), and the protrusions can move vertically and longitudinally in the movable groove.

7. A straightening device for metal strip processing according to claim 1, characterized in that: The limiting matching ring (72) is fixedly connected to the roller shaft (33), and a through groove for limiting the sliding of the limiting matching ring (72) is formed on the flip limiting frame (71), the size of the through groove gradually decreases from left to right, and a friction piece is provided on the contact surface between the through groove and the limiting matching ring (72).

8. A straightening device for metal strip processing according to claim 7, characterized in that: The friction piece is made of hard rubber.

9. A straightening device for metal strip processing according to claim 6, characterized in that: The buffer member between the movable block (52) and the fixed sleeve (51) is an arc-shaped spring sheet.

10. A straightening device for metal strip processing according to claim 3, characterized in that: The second straightening roller (32) and the lifting seat (41) are matched via a self-aligning bearing.

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