Three-roller tension device of rolling mill

Abstract

The utility model discloses a rolling mill three-roller tension device, which relates to the field of rolling mill technical equipment and comprises a mounting table, baffles arranged on two sides of the top end of the mounting table, a plurality of supporting columns arranged at one end of the top end of the mounting table, a tension adjusting mechanism arranged at the top ends of the supporting columns, and a first roller component arranged at one end of the tension adjusting mechanism. A first roller assembly is arranged at one end of the tension adjusting mechanism, a second roller assembly is arranged at the other end of the tension adjusting mechanism, the first roller assembly and the second roller assembly are identical in structure, a middle roller mechanism is arranged in the middle of the tension adjusting mechanism, and a lifting assembly connected with the tension adjusting mechanism is arranged at the other end of the top end of the mounting table. The metal strip rolling device is scientific and novel in structure, can ensure that a metal strip is kept stable in the rolling process by adjusting the distance between the rollers and tension distribution, and is beneficial for overcoming the situation that the tension is too large or too small possibly existing in the previous procedure.

Description

Technical Field

[0001] The utility model relates to the field of rolling mill technical equipment, in particular to a three-roller tension device of a rolling mill. Background Art

[0002] During the operation of the rolling mill, the metal strip needs to go through a series of rolling, stretching and forming operations. In order to adjust the tension of the metal strip during these processes and ensure the stability and quality of the strip, the tension device came into being. The traditional rolling mill tension device usually consists of multiple rollers, including upper rollers, middle rollers and lower rollers, which adjust the tension level of the metal strip by applying different tensions. The tension adjustment between these rollers can be achieved through hydraulic, mechanical or electronic control systems to meet the requirements of different rolling processes and materials. By adjusting the tension between the rollers, it can be ensured that the metal strip maintains appropriate tension during the rolling process, thereby improving the production efficiency and quality of the metal strip and adapting to the increasingly complex rolling process and market demand.

[0003] For example, Chinese patent CN208840207U discloses a tension pressing roller between rolling mills, including a solid shaft, a roller sleeve and a bearing, the roller sleeve is mounted on the solid shaft, the solid shaft includes a large diameter section in the middle and small diameter sections symmetrically distributed on both sides, and an oil circuit is arranged at both ends of the solid shaft, each oil circuit includes a first inlet, a middle section, a first outlet and a second outlet, which can improve the lubrication effect of the bearing, ensure that the pressure of the bearing part is higher than the external pressure, and improve the service life. However, the above tension pressing roller has the following shortcomings in the specific application process: first, the single-roller device is not as effective as the multi-roller tension device in adjusting the tension, resulting in its inaccurate control of the tension of the metal strip, affecting the rolling quality and production efficiency; second, the device cannot flexibly adjust the tension, and it seems powerless when dealing with complex rolling processes and diversified materials. It is difficult to meet the needs of different processes and metal strips, and its practicality is not good. Utility Model Content

[0004] In view of the problems in the related technology, the utility model proposes a three-roller tension device for a rolling mill to overcome the above technical problems existing in the existing related technology.

[0005] To this end, the specific technical solutions adopted by the utility model are as follows:

[0006] A three-roll tension device for a rolling mill comprises a mounting platform, baffles are arranged on both sides of the top of the mounting platform, a plurality of support columns are arranged at one end of the top of the mounting platform, a tension adjustment mechanism is arranged at the top of the support columns, a first rolling roller assembly is arranged at one end of the tension adjustment mechanism, a second rolling roller assembly is arranged at the other end of the tension adjustment mechanism, and the first rolling roller assembly and the second rolling roller assembly have the same structure, an intermediate rolling roller mechanism is arranged in the middle of the tension adjustment mechanism, and a lifting assembly connected to the tension adjustment mechanism is arranged at the other end of the top of the mounting platform.

[0007] Furthermore, in order to achieve precise adjustment of the tension of the metal strip by controlling the spacing between the rollers and ensure the stability of the strip during rolling, the tension adjustment mechanism includes a first bracket arranged at the top of the support column, a center axis is arranged at one end of the first bracket, a plurality of limit bolts are symmetrically arranged on both sides of the first bracket, a rotating sleeve is sleeved on the outer side of the center axis, a second bracket is arranged at one end of the rotating sleeve, and the cross-sections of the first bracket and the second bracket are both arranged as I-shaped structures.

[0008] Furthermore, in order to support the feeding and discharging of metal strips and cooperate with the tension adjustment mechanism to realize tension adjustment and ensure the stable rolling process, the first rolling roller assembly includes an L-shaped mounting frame symmetrically arranged on the outside of one end of the tension adjustment mechanism, a first bearing seat is arranged at the top of the L-shaped mounting frame, and a first rolling roller is arranged at one end of the first bearing seat.

[0009] Furthermore, in order to achieve balanced pressure between the first roller assembly and the second roller assembly and help adjust the tension distribution of the metal strip to compensate for the excessive or insufficient tension that may exist in the previous process, the intermediate roller mechanism includes a mounting plate symmetrically arranged on the outer side of the middle of the tension adjustment mechanism, a fixed seat is arranged at the top of one side of the mounting plate, and the fixed seat is connected to the mounting plate by a plurality of fixing bolts, an intermediate roller is penetrated at one end of the fixed seat, and a plurality of limit grooves are opened at the bottom end of one side of the mounting plate.

[0010] Furthermore, in order to adjust the angle of the tension adjustment mechanism, adapt to the tension requirements of metal strips of different thicknesses or sizes, and ensure the stability of the entire device, the lifting assembly includes a first fixing member arranged at one end of the top of the mounting platform, a connecting seat is arranged at the top of the first fixing member, a cylinder is arranged at the top of the connecting seat, a rotating block is arranged at the top of the cylinder, and a second fixing member connected to the tension adjustment mechanism is arranged at one end of the rotating block.

[0011] The beneficial effects of the utility model are:

[0012] 1. The utility model has a scientific and novel structure. It can ensure that the metal strip remains stable during the rolling process by adjusting the roller spacing and tension distribution, which helps to overcome the situation where the tension is too large or too small in the previous process; at the same time, the coordinated work of the tension adjustment mechanism and the first roller assembly, the second roller assembly and the intermediate roller mechanism can achieve precise adjustment of the tension of the metal strip by adjusting the distance between the rollers. Through the coordinated action of the various components, it is ensured that the metal strip always maintains appropriate tension during the rolling process, preventing the occurrence of wrinkles, uneven stretching or fracture quality problems, and improving the rolling quality and production efficiency.

[0013] 2. By setting up a tension adjustment mechanism and a lifting assembly, the tension of the metal strip can be adjusted. Through the extension and retraction of the cylinder, the lifting assembly can drive the second bracket in the tension adjustment mechanism to rotate, adjust and control the distance between each roller assembly, and ensure that during the rolling process, the metal strip always maintains appropriate tension to meet the needs of different processes and materials.

[0014] 3. The first roller assembly, the second roller assembly and the intermediate roller mechanism are provided to form a support structure of the three-roller tension device of the rolling mill. The first roller assembly is supported by the L-shaped mounting frame and the first bearing seat and transmits tension to the first roller to ensure its stable operation and apply appropriate pressure. At the same time, the intermediate roller mechanism cooperates with the limiting bolts and the limiting grooves to adjust the height of the mounting plate, thereby adjusting the distance between the intermediate roller and the first roller, helping to adjust the tension distribution of the metal strip and prevent it from deformation or uneven thickness. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of a three-roller tension device of a rolling mill according to an embodiment of the utility model;

[0017] Figure 2 It is a structural schematic diagram of a three-roller tension device of a rolling mill according to an embodiment of the utility model from another angle;

[0018] Figure 3 It is a partial structural schematic diagram of a three-roller tension device of a rolling mill according to an embodiment of the utility model;

[0019] Figure 4It is a partial structural schematic diagram of a tension adjustment mechanism in a three-roller tension device of a rolling mill according to an embodiment of the utility model;

[0020] Figure 5 It is a partial structural schematic diagram of another angle of a tension adjustment mechanism in a three-roller tension device of a rolling mill according to an embodiment of the utility model;

[0021] Figure 6 It is a structural schematic diagram of an intermediate roll mechanism in a three-roll tension device of a rolling mill according to an embodiment of the utility model;

[0022] Figure 7 yes Figure 4 A partial enlarged view of point A in the middle.

[0023] In the figure:

[0024] 1. Mounting table; 2. Baffle; 3. Support column; 4. Tension adjustment mechanism; 401. First bracket; 402. Center axis; 403. Limit bolt; 404. Rotating sleeve; 405. Second bracket; 5. First roller assembly; 501. L-shaped mounting frame; 502. First bearing seat; 503. First roller; 6. Second roller assembly; 7. Intermediate roller mechanism; 701. Mounting plate; 702. Fixed seat; 703. Fixed bolt; 704. Intermediate roller; 705. Limit groove; 8. Lifting assembly; 801. First fixing piece; 802. Connecting seat; 803. Cylinder; 804. Rotating block; 805. Second fixing piece. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] According to an embodiment of the utility model, a three-roller tension device of a rolling mill is provided.

[0027] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-Figure 7As shown, the three-roll tension device of the rolling mill according to the embodiment of the utility model includes a mounting platform 1, baffles 2 are arranged on both sides of the top of the mounting platform 1, a plurality of support columns 3 are arranged at one end of the top of the mounting platform 1, a tension adjustment mechanism 4 is arranged at the top of the support column 3, a first rolling roller assembly 5 is arranged at one end of the tension adjustment mechanism 4, a second rolling roller assembly 6 is arranged at the other end of the tension adjustment mechanism 4, and the first rolling roller assembly 5 has the same structure as the second rolling roller assembly 6, an intermediate rolling roller mechanism 7 is arranged in the middle of the tension adjustment mechanism 4, and a lifting assembly 8 connected to the tension adjustment mechanism 4 is arranged at the other end of the top of the mounting platform 1.

[0028] With the aid of the above-mentioned technical scheme of the utility model, the structure of the utility model is scientific and novel, and can ensure that the metal strip remains stable during the rolling process by adjusting the roller spacing and tension distribution, which helps to overcome the situation where the tension is too large or too small in the previous process; at the same time, the coordinated work of the tension adjustment mechanism 4 and the first roller assembly 5, the second roller assembly 6 and the intermediate roller mechanism 7 can achieve precise adjustment of the tension of the metal strip by adjusting the distance between the rollers. Through the coordinated action of the various components, it is ensured that the metal strip always maintains appropriate tension during the rolling process, preventing the occurrence of wrinkles, uneven stretching or breakage quality problems, thereby improving the rolling quality and production efficiency.

[0029] In one embodiment, for the tension adjustment mechanism 4 and the lifting assembly 8, the tension adjustment mechanism 4 includes a first bracket 401 arranged at the top of the support column 3, a central axis 402 is arranged at one end of the first bracket 401, a plurality of limit bolts 403 are symmetrically arranged on both sides of the first bracket 401, a rotating sleeve 404 is sleeved on the outer side of the central axis 402 (in addition, in specific applications, the central axis 402 and the rotating sleeve 404 are connected by a bearing), a second bracket 405 is arranged at one end of the rotating sleeve 404, and the cross-sections of the first bracket 401 and the second bracket 405 are both arranged in an I-shaped structure; the lifting assembly 8 includes a first fixing member 801 arranged at one end of the top of the mounting platform 1 (in addition, In specific applications, the first fixing member 801 is connected to the connecting seat 802 by a pin shaft), the top of the first fixing member 801 is provided with a connecting seat 802, the top of the connecting seat 802 is provided with a cylinder 803, the top of the cylinder 803 is provided with a rotating block 804 (in addition, in specific applications, the rotating block 804 is connected to the second fixing member 805 by a pin shaft), and one end of the rotating block 804 is provided with a second fixing member 805 connected to the tension adjustment mechanism 4 (in addition, in specific applications, the second fixing member 805 is fixedly connected to the bottom end of the second bracket 405), thereby controlling the spacing between each roller assembly to achieve precise adjustment of the tension of the metal strip and ensure the stability of the metal during the rolling process.

[0030] The working principles of the tension adjustment mechanism 4 and the lifting assembly 8 are as follows: the first bracket 401 is fixed to the top of the mounting platform 1 through the support column 3, and with the cooperation of the central axis 402 and the rotating sleeve 404, the second bracket 405 can rotate around the first bracket 401, thereby driving the second roller assembly 6 at the top of the second bracket 405 to rotate around the first roller assembly 5 at the top of the first bracket 401, and by adjusting the distance between the first roller assembly 5, the second roller assembly 6 and the intermediate roller mechanism 7, the tension of the metal strip is adjusted to meet the requirements of different rolling processes and materials.

[0031] In the lifting assembly 8, the first fixing member 801 and the connecting seat 802 constitute the basic structure of the lifting assembly, which is used to support and fix the cylinder 803. At the same time, the top of the cylinder 803 is connected to the tension adjustment mechanism 4 through the cooperation of the rotating block 804 and the second fixing member 805. By controlling the extension and retraction of the cylinder 3, when the lifting assembly 8 adjusts its height, it drives the second bracket 405 in the tension adjustment mechanism 4 to rotate around the first bracket 401, thereby providing power for the tension adjustment mechanism 4 to achieve the adjustment of the tension of the metal strip.

[0032] In one embodiment, for the above-mentioned first roller assembly 5 and the intermediate roller mechanism 7, the first roller assembly 5 includes an L-shaped mounting frame 501 symmetrically arranged on the outside of one end of the tension adjustment mechanism 4 (in addition, in a specific application, the L-shaped mounting frame 501 is fixedly connected to the first bracket 401), a first bearing seat 502 is arranged at the top of the L-shaped mounting frame 501, and a first roller 503 is arranged at one end of the first bearing seat 502; the intermediate roller mechanism 7 includes a mounting plate 701 symmetrically arranged on the outside of the middle part of the tension adjustment mechanism 4 (in addition, in a specific application, the mounting plate 701 is connected to the first bracket 401 through a limiting bolt 403) A fixing seat 702 is arranged at the top of one side of the mounting plate 701, and the fixing seat 702 is connected to the mounting plate 701 by a plurality of fixing bolts 703, an intermediate roller 704 is penetrated at one end of the fixing seat 702 (in addition, in specific applications, the intermediate roller 704 is connected to the fixing seat 702 by a bearing), and a plurality of limiting grooves 705 are opened at the bottom end of one side of the mounting plate 701 (in addition, in specific applications, the outer diameter of the limiting bolt 403 is the same as the inner diameter of the limiting groove 705), thereby supporting the feeding and discharging of the metal strip and helping to adjust the tension distribution of the metal strip to compensate for the tension that may be too large or too small in the previous process.

[0033] The working principle of the first roller assembly 5 and the intermediate roller mechanism 7 is as follows: the L-shaped mounting frame 501 and the first bearing seat 502 constitute the basic structure supporting the first roller 503, ensuring the stable installation and operation of the first roller. The first roller 503, as the active roller in the rolling process, is responsible for transmitting tension and pressure and applying the required force to the metal strip. The mounting plate 701 and the fixed seat 702 constitute the basic structure supporting the intermediate roller 704, ensuring the stability of the intermediate roller in the rolling process. The intermediate roller 704, as the intermediate roller in the rolling process, plays the role of transmitting tension and balancing pressure. At the same time, the height of the mounting plate 701 can be adjusted by cooperating with the limiting bolt 403 and the limiting groove 705, thereby adjusting the distance between the intermediate roller 704 and the first roller 503, helping to adjust the tension distribution of the metal strip and preventing it from deformation or uneven thickness.

[0034] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0035] In actual application, a group of the device is arranged on both sides of the entrance and exit of the rolling mill. Taking the entrance side of stainless steel passing through the rolling mill as an example, first, the stainless steel is sent between the tension adjustment mechanism 4 and the first roller assembly 5, and then passes through the first roller assembly 5 and the intermediate roller mechanism 7, and between the intermediate roller mechanism 7 and the second roller assembly 6 in sequence. Then, the stainless steel is sent out from between the second roller assembly 6 and the tension adjustment mechanism 4. Through the cooperation between the first roller assembly 5 and the intermediate roller mechanism 7 (the working principles of the first roller assembly 5 and the intermediate roller mechanism 7 are as described above), and the cooperation between the intermediate roller mechanism 7 and the second roller assembly 6 (the second roller assembly 6 has the same structure and working principle as the first roller assembly 5), the tension that may be too large or too small in the previous process of the stainless steel is compensated, and the tension is adjusted by the tension adjustment mechanism 4 (the working principle of the tension adjustment mechanism 4 is as described above), thereby ensuring the stable tension of the stainless steel during the rolling process and preventing the occurrence of uneven stretching or wrinkles during the rolling process.

[0036] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0037] 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 three-roller tension device for a rolling mill, comprising a mounting platform (1), characterized in that: Baffles (2) are provided on both sides of the top of the mounting platform (1); a plurality of support columns (3) are provided at one end of the top of the mounting platform (1); a tension adjustment mechanism (4) is provided at the top of the support column (3); a first roller assembly (5) is provided at one end of the tension adjustment mechanism (4); a second roller assembly (6) is provided at the other end of the tension adjustment mechanism (4); the first roller assembly (5) and the second roller assembly (6) have the same structure; an intermediate roller mechanism (7) is provided in the middle of the tension adjustment mechanism (4); and a lifting assembly (8) connected to the tension adjustment mechanism (4) is provided at the other end of the top of the mounting platform (1).

2. A three-roller tension device for a rolling mill according to claim 1, characterized in that: The tension adjustment mechanism (4) comprises a first bracket (401) arranged at the top end of the support column (3), a central axis (402) is arranged at one end of the first bracket (401), and a plurality of limit bolts (403) are symmetrically arranged on both sides of the first bracket (401).

3. A three-roller tension device for a rolling mill according to claim 2, characterized in that: A rotating sleeve (404) is sleeved on the outer side of the central axis (402), a second bracket (405) is arranged at one end of the rotating sleeve (404), and the cross sections of the first bracket (401) and the second bracket (405) are both arranged in an I-shaped structure.

4. A three-roller tension device for a rolling mill according to claim 1, characterized in that: The first rolling roller assembly (5) comprises an L-shaped mounting frame (501) symmetrically arranged on the outside of one end of the tension adjustment mechanism (4), a first bearing seat (502) is arranged at the top end of the L-shaped mounting frame (501), and a first rolling roller (503) is arranged at one end of the first bearing seat (502).

5. A three-roller tension device for a rolling mill according to claim 1, characterized in that: The intermediate roller mechanism (7) comprises a mounting plate (701) symmetrically arranged on the outer side of the middle part of the tension adjustment mechanism (4), a fixing seat (702) is arranged at the top end of one side of the mounting plate (701), and the fixing seat (702) is connected to the mounting plate (701) via a plurality of fixing bolts (703).

6. A three-roller tension device for a rolling mill according to claim 5, characterized in that: An intermediate roller (704) is provided through one end of the fixing seat (702), and a plurality of limiting grooves (705) are provided at the bottom end of one side of the mounting plate (701).

7. A three-roller tension device for a rolling mill according to claim 1, characterized in that: The lifting assembly (8) comprises a first fixing member (801) arranged at one end of the top end of the mounting platform (1), and a connecting seat (802) is arranged at the top end of the first fixing member (801).

8. A three-roller tension device for a rolling mill according to claim 7, characterized in that: A cylinder (803) is arranged at the top of the connecting seat (802), a rotating block (804) is arranged at the top of the cylinder (803), and a second fixing member (805) connected to the tension adjustment mechanism (4) is arranged at one end of the rotating block (804).

Images