Leveling machine work roll elastic support structure

Abstract

The utility model relates to the technical field of flattening machine, concretely is flattening machine work roll elastic support structure, including support base, the middle installation of support base upper surface lower flattening mechanism, the position of support base upper surface four corners all install driver, driver top end installs support top board. The utility model discloses through the combination of spring and disc spring, cooperation pressure sensor and the closed -loop control of drive motor, can according to the real -time pressure feedback in the plate thickness, material quality and flattening process, adapts more different thickness different kinds of board, through the synergies of spring and disc spring, can accurate adjustment inner sleeve displacement to the compensation roll system deflection, and multiple different upper flattening mechanisms can be controlled separately respectively, can adapt single board different area different thickness.

Description

Technical Field

[0001] This utility model relates to the field of leveling machine technology, specifically to the elastic support structure of the working roller of a leveling machine. Background Technology

[0002] As raw materials for automotive parts, rolled steel sheets need to be leveled by a leveling machine before processing to facilitate subsequent processes. In existing leveling machines, the upper and lower leveling rollers are rigidly connected. However, for rolled steel sheets of unequal thickness, the existing leveling rollers cannot adjust the gap between the upper and lower leveling rollers to accommodate different thicknesses of the rolled steel sheets. This can even cause the leveling rollers to be subjected to excessive compression, resulting in large deflections and damaging the machine.

[0003] Utility model patent CN215143536U discloses a leveling machine. This utility model includes a base plate, multiple lower leveling rollers, a top plate disposed on top of the base plate, and multiple upper leveling rollers. It also includes a first driver and a second driver for adjusting the downward pressure of the top plate. Each upper leveling roller can slide linearly on the top plate independently. The leveling machine further includes a holding unit, which includes a holding seat, a first elastic element, and a second elastic element. The holding seat rolls in contact with the side of the upper leveling roller away from the lower leveling rollers. A sliding rod is integrally connected to the holding seat, and the sliding rod slidably passes through opposite end faces of the top plate. The first elastic element is sleeved on the sliding rod and abuts against the end face of the top plate away from the upper leveling rollers. The second elastic element is sleeved on the sliding rod and abuts against the top plate and the holding seat. This utility model's leveling machine is capable of leveling workpieces of varying thicknesses.

[0004] While the aforementioned utility model can level workpieces of varying thicknesses, the preload of the elastic components in existing technologies is mostly adjusted manually, making it impossible to dynamically adjust based on the material of the sheet (such as the difference in yield strength between high-strength steel and ordinary low-carbon steel) and its thickness. For thick or high-strength sheets, the manually adjusted preload is prone to being too low, resulting in incomplete leveling; for thin or soft sheets, the preload is prone to being too high, causing excessive stretching of the sheet or damage to the roller system. This combination of "passive stretching + manual adjustment" results in poor adaptability and low debugging efficiency for the leveling machine, making it unsuitable for the demands of modern production with multiple specifications and small batches. Therefore, we propose an elastic support structure for the working rollers of the leveling machine. Utility Model Content

[0005] This invention provides an elastic support structure for the working rolls of a leveling machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: The elastic support structure for the working roll of the leveling machine includes a support base, a lower leveling mechanism installed in the middle of the upper surface of the support base, drivers installed at the four corners of the upper surface of the support base, a support top plate installed at the top of the drivers, and several upper leveling mechanisms fixedly installed on the upper surface of the support top plate. The upper leveling mechanism includes a cylinder mounted on the upper surface of the support top plate, a lifting plate fixedly mounted on the lower end face of the cylinder, and two support mechanisms fixedly mounted on the left and right ends of the lower surface of the lifting plate. Motors are mounted on both the front and rear ends of the upper surface of the lifting plate, and guide rods are mounted on both the front and rear sides of the upper surface of the lifting plate. Each support mechanism has a bearing seat fixedly mounted on its lower end, and a leveling roller is installed between the two bearing seats. A pressure sensor is installed at the connection between the support mechanism and the bearing seat.

[0007] As a preferred technical solution, the support mechanism includes an outer sleeve, an inner sleeve slidably connected within the outer sleeve, and a spring installed between the two.

[0008] This design, with the sliding fit between the outer sleeve and the inner sleeve combined with the elastic support of the spring, gives the support mechanism a buffer function, which can absorb the instantaneous impact force during the leveling process and reduce rigid damage to the work roller and the workpiece.

[0009] As a preferred technical solution, a sliding groove is provided on the right side of the inner surface of the outer sleeve, a limit ring is welded to the lower end of the inner surface of the outer sleeve, and an adjusting block is welded to the top of the left end of the outer surface of the outer sleeve, with an adjusting screw connected to the adjusting block by an internal thread.

[0010] This setting allows for adjustment of the threaded engagement between the adjusting screw and the adjusting block. By rotating the screw, the relative initial position of the outer sleeve and the inner sleeve can be adjusted, thereby adjusting the preload of the spring to meet the leveling pressure requirements of workpieces made of different materials.

[0011] As a preferred technical solution, a retaining ring is welded to the top of the outer surface of the inner sleeve, a stop block is welded to the right side of the outer surface of the retaining ring, an auxiliary sleeve is fixedly installed at the bottom of the inner sleeve, a support column is provided inside the auxiliary sleeve, and a disc spring is installed on the outside of the support column.

[0012] This feature, with the cooperation of the stop block and the outer sleeve sliding groove, restricts the circumferential rotation of the inner sleeve relative to the outer sleeve, ensuring that the support mechanism only extends and contracts in the axial (vertical) direction, thus guaranteeing the stability of the leveling roller.

[0013] As a preferred technical solution, the spring is welded between the lower surface of the retaining ring and the upper surface of the limiting ring, and the stop block is slidably connected inside the sliding groove.

[0014] This setting ensures that the spring's elastic force is stably applied between the inner and outer sleeves, preventing uneven force distribution caused by spring misalignment.

[0015] As a preferred technical solution, the outer surface diameter of the inner sleeve is equal to the inner surface diameter of the limiting ring, and the outer surface diameter of the retaining ring is equal to the inner surface diameter of the outer sleeve.

[0016] This setting ensures a tight fit between the inner sleeve and the limiting ring, and between the retaining ring and the outer sleeve, reducing radial clearance, preventing swaying of the support mechanism during operation, and improving structural rigidity.

[0017] As a preferred technical solution, the adjusting screw is coaxially connected to the motor output shaft via a coupling, and the support column is welded to the lower surface of the lifting plate.

[0018] This feature enables automated adjustment of the motor-driven adjusting screw, replacing manual operation, improving the efficiency and accuracy of spring preload adjustment, and adapting to the rapid switching needs of different workpieces in mass production.

[0019] As a preferred technical solution, the auxiliary sleeve has a through hole for sliding connection of the support column. The side surface of the through hole is smooth, and a drive motor for controlling the leveling roller is installed at the outer end of one of the bearing seats.

[0020] This feature ensures a smooth surface on the auxiliary sleeve through-hole, reducing frictional resistance during support column sliding, ensuring smooth expansion and contraction of the inner sleeve, reducing energy loss, and minimizing component wear.

[0021] Compared with the prior art, the beneficial effects of this utility model are: 1. By combining springs and disc springs, along with closed-loop control of pressure sensors and drive motors, it can adapt to more different thicknesses and types of boards based on the thickness, material, and real-time pressure feedback during the leveling process.

[0022] 2. Through the synergistic action of springs and disc springs, the displacement of the inner sleeve can be precisely adjusted to compensate for the deflection of the roller system. Multiple different upper leveling mechanisms can be controlled independently, which can adapt to the leveling of different areas and thicknesses of a single board. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the upper leveling mechanism in this utility model; Figure 3 This is a schematic diagram of the support mechanism in this utility model; Figure 4 This is a schematic diagram of the outer sleeve structure in this utility model; Figure 5 This is a schematic diagram of the inner sleeve in this utility model; The meanings of the labels in the diagram are as follows: 100. Support base; 200. Lower leveling mechanism; 300. Driver; 400. Support top plate; 500. Upper leveling mechanism; 510. Cylinder; 520. Guide rod; 530. Lifting plate; 540. Support mechanism; 541. Outer sleeve; 5411. Sliding groove; 5412. Limit ring; 5413. Adjusting screw; 5414. Adjusting block; 542. Inner sleeve; 5421. Auxiliary sleeve; 5422. Support column; 5423. Stop block; 5424. Stop ring; 5425. Disc spring; 543. Spring; 550. Bearing seat; 560. Leveling roller; 570. Motor. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-5 This embodiment provides a technical solution: The elastic support structure of the working roller of the leveling machine includes a support base 100, a lower leveling mechanism 200 installed in the middle of the upper surface of the support base 100, a driver 300 installed at each of the four corners of the upper surface of the support base 100, a support top plate 400 installed at the top of the driver 300, and several upper leveling mechanisms 500 fixedly installed on the upper surface of the support top plate 400. The upper leveling mechanism 500 includes a cylinder 510 mounted on the upper surface of the support top plate 400, a lifting plate 530 fixedly mounted on the lower end face of the cylinder 510, and two support mechanisms 540 fixedly mounted on the left and right ends of the lower surface of the lifting plate 530. Motors 570 are mounted on both the front and rear ends of the upper surface of the lifting plate 530, and guide rods 520 are mounted on both the front and rear sides of the upper surface of the lifting plate 530. A bearing seat 550 is fixedly mounted on the lower end of each support mechanism 540, and a leveling roller 560 is installed between the two bearing seats 550. A pressure sensor is installed at the connection between the support mechanism 540 and the bearing seat 550. Through the above mechanism, the position of the outer sleeve 541 can be flexibly adjusted according to the pressure sensed by the pressure sensor, thereby adjusting the preload of the spring 543 and the disc spring 5425 to adapt to the leveling pressure requirements of workpieces of different materials.

[0026] It should be added that the pressure sensor is connected to the cylinder 510 and the motor 570 through the controller. The pressure sensor is connected by a flange. Mounting holes matching the flanges at both ends of the pressure sensor are machined on the lower end face of the support mechanism 540 and the upper end face of the bearing seat 550. The pressure sensor is placed between the support mechanism 540 and the bearing seat 550. Bolts are used to pass through the mounting holes to fasten the pressure sensor to the support mechanism 540 and the bearing seat 550. This method can ensure that the connection between the pressure sensor and the support mechanism and the bearing seat is firm and the force transmission is stable, thereby accurately measuring the pressure of the support mechanism on the bearing seat.

[0027] Furthermore, such as Figure 3 As shown, the support mechanism 540 includes an outer sleeve 541, an inner sleeve 542 slidably connected within the outer sleeve 541, and a spring 543 installed between the two. The elasticity of the spring can adapt to the slight undulations of the workpiece surface, improve the leveling accuracy, and avoid local stress concentration.

[0028] Furthermore, such as Figure 4 As shown, a sliding groove 5411 is provided on the right side of the inner surface of the outer sleeve 541. A limit ring 5412 is welded to the lower end of the inner surface of the outer sleeve 541. An adjusting block 5414 is welded to the top of the left end of the outer surface of the outer sleeve 541. An adjusting screw 5413 is internally threaded to the adjusting block 5414. The limit ring 5412 can limit the downward stroke of the inner sleeve 542, prevent the inner sleeve 542 from detaching from the outer sleeve 541, and improve structural safety.

[0029] In this embodiment, as Figure 5 As shown, a retaining ring 5424 is welded to the top of the outer surface of the inner sleeve 542, and a stop block 5423 is welded to the right side of the outer surface of the retaining ring 5424. An auxiliary sleeve 5421 is fixedly installed at the bottom of the inner sleeve 542. A support column 5422 is provided inside the auxiliary sleeve 5421, and a disc spring 5425 is installed on the outside of the support column 5422. The cooperation between the auxiliary sleeve 5421 and the support column 5422 and the disc spring 5425 forms a two-stage elastic buffer structure, which further enhances the buffering effect. It is especially suitable for leveling thick plates or high-strength workpieces and reduces vibration damage to the equipment.

[0030] In this embodiment, as Figure 5As shown, spring 543 is welded between the lower surface of retaining ring 5424 and the upper surface of limiting ring 5412. Stop block 5423 is slidably connected inside sliding groove 5411. The outer surface diameter of inner sleeve 542 is equal to the inner surface diameter of limiting ring 5412, and the outer surface diameter of retaining ring 5424 is equal to the inner surface diameter of outer sleeve 541. Adjusting screw 5413 is coaxially connected to output shaft of motor 570 through coupling. Support column 5422 is welded to lower surface of lifting plate 530. A through hole is opened in auxiliary sleeve 5421 for sliding connection of support column 5422. The side surface of the through hole is smooth. A drive motor for controlling leveling roller 560 is installed at the outer end of one bearing seat 550. Spring 543, together with disc spring 5425, can drive outer sleeve to rise and fall by adjusting screw 5413 according to plate thickness, material and real-time pressure feedback during leveling, thereby changing the compression of spring and disc spring and realizing graded adjustment and dynamic optimization of stiffness.

[0031] It is worth noting that the structure and working principle of the cylinder 510, motor 570, pressure sensor, and drive motor involved in this embodiment are as known to those skilled in the art and will not be described in detail here. The structure and working principle of the lower leveling mechanism 200 and driver 300 involved in this embodiment are technologies already disclosed in the prior art and will not be described in detail here.

[0032] In the specific use of the elastic support structure of the working roller of the leveling machine in this embodiment, the pressure sensor first monitors the pressure value between the inner sleeve 542 and the bearing seat 550 in real time according to the different specifications of the plate being leveled, and transmits the signal to the controller. The controller can compare the preset plate parameters, namely thickness and material hardness, with the real-time pressure. After comparison, the controller controls the motor 570 to make adjustments. After the motor 570 starts, the adjusting screw 5413 rotates. The adjusting screw 5413 controls the vertical displacement of the outer sleeve 541 through the adjusting block 5414 connected to it. When the outer sleeve 541 moves, the distance between the inner and outer sleeves changes, and the preload of the spring 543 and disc spring 5425 set between the inner and outer sleeves changes, thereby controlling the force finally applied to the bearing seat 550 through the inner sleeve 542. For example, when the motor 570 starts rotating in the forward direction, the adjusting screw 5413 drives the adjusting block 5414 and the outer sleeve 541 to move downward. When the outer sleeve 541 moves downward, since the inner sleeve 542 does not move at this moment, the spring 543 is stretched, and the preload of the spring 543 changes. Due to the change in the preload of the spring 543, the position of the inner sleeve 542 connected by the spring 543 may also change, which ultimately causes the preload of the disc spring 5425 to change, thus controlling the force output by the inner sleeve 542.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An elastic support structure for the working roll of a leveling machine, comprising a support base (100), characterized in that: A lower leveling mechanism (200) is installed in the middle of the upper surface of the support base (100). A driver (300) is installed at each of the four corners of the upper surface of the support base (100). A support top plate (400) is installed at the top of the driver (300). Several upper leveling mechanisms (500) are fixedly installed on the upper surface of the support top plate (400). The upper leveling mechanism (500) includes a cylinder (510) installed on the upper surface of the support top plate (400), a lifting plate (530) fixedly installed on the lower end face of the cylinder (510), and two support mechanisms (540) fixedly installed on the left and right ends of the lower surface of the lifting plate (530). Motors (570) are installed at both the front and rear ends of the upper surface of the lifting plate (530), and guide rods (520) are installed on both the front and rear sides of the upper surface of the lifting plate (530). A bearing seat (550) is fixedly installed at the lower end of each support mechanism (540), and a leveling roller (560) is installed between the two bearing seats (550). A pressure sensor is installed between the connection between the support mechanism (540) and the bearing seat (550).

2. The elastic support structure for the working roll of the leveling machine as described in claim 1, characterized in that: The support mechanism (540) includes an outer sleeve (541), an inner sleeve (542) slidably connected within the outer sleeve (541), and a spring (543) installed between the two.

3. The elastic support structure for the working roll of the leveling machine as described in claim 2, characterized in that: A sliding groove (5411) is provided on the right side of the inner surface of the outer sleeve (541). A limit ring (5412) is welded to the lower end of the inner surface of the outer sleeve (541). An adjusting block (5414) is welded to the top of the left end of the outer surface of the outer sleeve (541). An adjusting screw (5413) is internally threaded onto the adjusting block (5414).

4. The elastic support structure for the working roll of the leveling machine as described in claim 3, characterized in that: A retaining ring (5424) is welded to the top of the outer surface of the inner sleeve (542), and a retaining block (5423) is welded to the right side of the outer surface of the retaining ring (5424). An auxiliary sleeve (5421) is fixedly installed at the bottom inside the inner sleeve (542), and a support column (5422) is provided inside the auxiliary sleeve (5421). A disc spring (5425) is installed on the outside of the support column (5422).

5. The elastic support structure for the working roll of the leveling machine as described in claim 4, characterized in that: The spring (543) is welded between the lower surface of the retaining ring (5424) and the upper surface of the limiting ring (5412), and the stop block (5423) is slidably connected inside the sliding groove (5411).

6. The elastic support structure for the working roll of the leveling machine as described in claim 5, characterized in that: The outer surface diameter of the inner sleeve (542) is equal to the inner surface diameter of the limiting ring (5412), and the outer surface diameter of the retaining ring (5424) is equal to the inner surface diameter of the outer sleeve (541).

7. The elastic support structure for the working roll of the leveling machine as described in claim 6, characterized in that: The adjusting screw (5413) is coaxially connected to the output shaft of the motor (570) via a coupling, and the support column (5422) is welded to the lower surface of the lifting plate (530).

8. The elastic support structure for the working roll of the leveling machine as described in claim 7, characterized in that: The auxiliary sleeve (5421) has a through hole for sliding connection with the support column (5422). The side surface of the through hole is smooth. A drive motor for controlling the leveling roller (560) is installed at the outer end of one of the bearing seats (550).

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