Hot rolling structure for producing cold-rolled strip steel with low stamping chippings

Abstract

The utility model discloses a hot rolling structure for low-stamping chipping cold-rolled strip steel production, which relates to the technical field of strip steel production and comprises a hot rolling mill, an upper roller seat is arranged in the hot rolling mill, four mounting grooves are arranged at the upper end of the upper roller seat, four first springs are arranged in the upper roller seat, and the first springs are respectively positioned in the mounting grooves. First springs are arranged on the upper roller seat, mounting blocks are arranged at the lower ends of the first springs, first rollers are arranged on the side walls of the mounting blocks, two first mounting seats are arranged at the lower end of the upper roller seat, and second rollers are arranged on the adjacent side walls of the two first mounting seats. And then the second roller is used for hot rolling, damage of impact force to the first roller and the second roller is reduced, the service life of the first roller and the second roller is prolonged, and the situation that the surface of the hot-rolled strip steel is uneven due to concave roller surfaces caused by impact of the strip steel is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of strip steel production, in particular to a hot rolling structure for producing low-stamping debris cold-rolled strip steel. Background Art

[0002] Chip cold-rolled strip refers to a strip product made of chips as raw materials and processed by cold rolling process. This kind of strip product has high application value in industry, especially in terms of resource recycling and cost saving. By using scrap steel and other debris as raw materials, not only the recycling of resources is realized, but also the production cost is reduced. Chip cold-rolled strip has good surface quality and mechanical properties, which can meet the needs of various application scenarios. The hot rolling unit used for strip production includes multiple frames, each frame includes an upper roll section and a lower roll section. The strip passes through each frame in turn and is placed between the upper roll section and the lower roll section, thereby carrying out hot rolling production of the strip.

[0003] Chinese patent document CN107716547A discloses a hot rolling mill for strip steel production. The above hot rolling mill for strip steel production has shortcomings. Although the device realizes hot rolling in strip steel production, it has limitations. The thickness of the strip steel varies. When the thicker strip steel is hot rolled using rollers, it is easy to cause the roller surface to dent due to the impact of the strip steel, which in turn causes the surface of the strip steel after hot rolling to be uneven, affecting the product quality.

[0004] Therefore, in order to solve such problems, we proposed a hot rolling structure for the production of cold-rolled strip with low stamping debris. Utility Model Content

[0005] The utility model aims to provide a hot rolling structure for the production of cold-rolled steel strip with low stamping debris, aiming to solve the problem in the above-mentioned background technology that the existing hot rolling unit for strip steel production causes depression of the roller surface due to the impact of the strip steel during use, thereby reducing the service life of the roller.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a hot rolling structure for producing low-stamping debris cold-rolled strip steel, including a hot rolling mill, an upper roller seat is arranged inside the hot rolling mill, four mounting grooves are opened at the upper end of the upper roller seat, four first springs are arranged inside the upper roller seat, the first springs are respectively located in the mounting grooves, and mounting blocks are arranged at the lower ends of the first springs, wherein a first roller is arranged between two mounting blocks and between the other two mounting blocks, two first mounting seats are arranged at the lower end of the upper roller seat, and second rollers are arranged on adjacent side walls of the two first mounting seats, a lower roller seat is arranged inside the hot rolling mill, three groups of second mounting seats are arranged at the upper end of the lower roller seat, each group of second mounting seats includes two, and a third roller is arranged between each group of second mounting seats, and the upper end of the upper roller seat is fixedly connected to the first mounting plate by bolts, and the first mounting plate is located directly above the first spring.

[0007] Preferably, four second springs are arranged inside the upper roller seat, the second springs are respectively located in the mounting grooves, and the second springs are located at the lower end of the first mounting plate. Second mounting plates are arranged at both ends of the second springs, and the two second mounting plates are located at one end of the first spring away from the mounting block.

[0008] Preferably, a servo motor is provided at the upper end of the hot rolling mill, a threaded column is fixedly connected to the output end of the servo motor, the end of the threaded column away from the servo motor is located inside the hot rolling mill, the side wall of the threaded column is threadedly connected to a drive block, and the side wall of the drive block is fixedly connected to the upper roller seat.

[0009] Preferably, a limit block is provided on the side wall of the upper roller seat, and a limit column is slidably connected to the inside of the limit block.

[0010] Preferably, the upper end of the upper roller seat is fixedly connected to a third mounting plate by bolts.

[0011] Preferably, a rubber pad is provided on the upper end of the first mounting plate.

[0012] The utility model has the following beneficial effects:

[0013] In the utility model, a first spring, a mounting block, a first rolling roller, a first mounting seat, a second rolling roller, a lower rolling roller seat, a second mounting seat, a third rolling roller, a first mounting plate, a rubber pad, a second spring and a second mounting plate are arranged. The first spring and the second spring are utilized to absorb the impact force generated when the first rolling roller performs hot rolling on the strip steel, and then the second rolling roller is utilized to perform hot rolling, thereby reducing the damage to the first rolling roller and the second rolling roller by the impact force, increasing the service life of the first rolling roller and the second rolling roller, avoiding the surface depression of the rolling roller due to the impact of the strip steel, thereby causing the surface of the strip steel after hot rolling to be uneven, and improving the product quality. Secondly, a servo motor, a threaded column and a driving block are arranged to realize the adjustment of the spacing between the second rolling roller and the third rolling roller, and the utility model is suitable for producing strip steels of different thicknesses, thereby increasing the practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional schematic diagram of a hot rolling structure for producing low-stamping chip cold-rolled strip steel proposed by the utility model;

[0015] Figure 2 A three-dimensional exploded schematic diagram of the internal structure of a hot rolling structure for producing low-stamping debris cold-rolled strip steel proposed by the utility model;

[0016] Figure 3 It is a three-dimensional schematic diagram of the upper roll part in a hot rolling structure for producing low-stamping chip cold-rolled strip steel proposed by the utility model;

[0017] Figure 4 A three-dimensional exploded diagram of the upper roll part in a hot rolling structure for producing low-stamping chip cold-rolled strip steel proposed in the utility model Figure 1 ;

[0018] Figure 5 A three-dimensional exploded diagram of the upper roll part in a hot rolling structure for producing low-stamping chip cold-rolled strip steel proposed in the utility model Figure 2 .

[0019] Legend:

[0020] 1. Hot rolling mill; 2. Upper roller seat; 201. Mounting groove; 21. First spring; 22. Mounting block; 23. First roller; 24. First mounting seat; 25. Second roller; 26. Lower roller seat; 261. Second mounting seat; 262. Third roller; 27. First mounting plate; 271. Rubber pad; 28. Second spring; 281. Second mounting plate; 29. ​​Third mounting plate; 3. Servo motor; 31. Threaded column; 32. Drive block; 33. Limit block; 34. Limit column. DETAILED DESCRIPTION

[0021] 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.

[0022] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. The terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected, or indirectly connected through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] Reference Figure 1-5 The utility model provides an embodiment: a hot rolling structure for producing low-stamping scrap cold-rolled strip steel, comprising a hot rolling mill 1, an upper roll seat 2 is arranged inside the hot rolling mill 1, four mounting grooves 201 are opened at the upper end of the upper roll seat 2, four first springs 21 are arranged inside the upper roll seat 2, the first springs 21 are respectively located in the mounting grooves 201, and mounting blocks 22 are arranged at the lower ends of the first springs 21, wherein first rollers 23 are arranged between two mounting blocks 22 and between the other two mounting blocks 22, Two first mounting seats 24 are provided at the lower end of the upper roller seat 2, and second rollers 25 are provided on the adjacent side walls of the two first mounting seats 24. A lower roller seat 26 is provided inside the hot rolling mill 1, and three groups of second mounting seats 261 are provided at the upper end of the lower roller seat 26, each group of second mounting seats 261 includes two, and a third roller 262 is provided between each group of second mounting seats 261. The upper end of the upper roller seat 2 is fixedly connected to the first mounting plate 27 by bolts, and the first mounting plate 27 is located directly above the first spring 21.

[0024] In this arrangement, when the steel strip passes through the first roller 23, the first roller 23 squeezes the first spring 21, and the first spring 21 absorbs the impact force. Then the first spring 21 squeezes the second spring 28 through the second mounting plate 281, and the second spring 28 absorbs the impact force for a second time. Then the steel strip passes through another set of first rollers 23, and then another set of first springs 21 and second springs 28 absorb the impact force twice. Finally, the steel strip is hot-rolled for the third time by the second roller 25, so as to avoid surface depression of the first roller 23 and the second roller 25 due to the impact of the steel strip, thereby increasing the service life of the first roller 23 and the second roller 25.

[0025] Four second springs 28 are arranged inside the upper roller seat 2. The second springs 28 are respectively located in the mounting grooves 201, and the second springs 28 are located at the lower end of the first mounting plate 27. Second mounting plates 281 are arranged at both ends of the second spring 28. The two second mounting plates 281 are both located at the end of the first spring 21 away from the mounting block 22, and are used for utilizing the second springs 28 for secondary absorption of impact force, thereby increasing the absorption of impact force.

[0026] A servo motor 3 is provided at the upper end of the hot rolling mill 1, and a threaded column 31 is fixedly connected to the output end of the servo motor 3. The end of the threaded column 31 away from the servo motor 3 is located inside the hot rolling mill 1, and a driving block 32 is threadedly connected to the side wall of the threaded column 31. The side wall of the driving block 32 is fixedly connected to the upper roll seat 2, and is used to use the servo motor 3 to drive the threaded column 31 to rotate, so that the threaded column 31 drives the driving block 32 to move vertically, and the driving block 32 drives the upper roll seat 2 to move vertically, so that the upper roll seat 2 drives the second roll 25 to move vertically, and the distance between the second roll 25 and the third roll 262 is adjusted to realize the hot rolling production of strip steels with different thicknesses.

[0027] A limit block 33 is provided on the side wall of the upper roll seat 2. A limit column 34 is slidably connected to the limit block 33. The limit column 34 is fixedly connected to the hot rolling mill 1 and is used to limit the upper roll seat 2 to increase the stability of the movement of the upper roll seat 2.

[0028] The upper end of the upper roller seat 2 is fixedly connected with a third mounting plate 29 by bolts, which is used to limit the first mounting plate 27, increase the stability of the first mounting plate 27, and prevent the first mounting plate 27 from being offset due to the impact of the first spring 21 and the second spring 28.

[0029] A rubber pad 271 is disposed at the upper end of the first mounting plate 27 for buffering and absorbing the impact of the first mounting plate 27 on the third mounting plate 29 .

[0030] Working principle: First, the hot rolling mill 1 is started, and the motor inside the hot rolling mill 1 is used to provide power. The speed is reduced and the torque is increased through the reducer. Then, the power is transmitted to the first roller 23 and the second roller 25 through the gear seat and the connecting shaft, thereby driving them to rotate. When the steel strip passes through the first roller 23, the first roller 23 squeezes the first spring 21, and the first spring 21 is used to absorb the impact force. Then, the first spring 21 squeezes the second spring 28 through the second mounting plate 281, and the second spring 28 is used to absorb the impact force for the second time. Then, the steel strip passes through another set of first rollers 23, and then another set of first springs 21 and second springs are used. 28 absorbs the impact force twice, uses two groups of first rollers 23 to hot-roll the steel strip to absorb the impact force, and then uses the second roller 25 to hot-roll the steel strip for the third time, so as to avoid the first roller 23 and the second roller 25 from surface depression due to the impact of the steel strip, thereby improving the product quality. Secondly, the servo motor 3 can be used to drive the threaded column 31 to rotate, the threaded column 31 drives the driving block 32 to move vertically, the driving block 32 drives the upper roller seat 2 to move vertically, and the upper roller seat 2 drives the second roller 25 to move vertically, thereby adjusting the distance between the second roller 25 and the third roller 262 to realize the hot rolling production of strips of different thicknesses.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. 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 hot rolling structure for producing low stamping scrap cold rolled steel strip, comprising a hot rolling mill (1), characterized in that: An upper rolling mill (2) is arranged inside the hot rolling mill (1), and four mounting grooves (201) are opened at the upper end of the upper rolling mill (2). Four first springs (21) are arranged inside the upper rolling mill (2), and the first springs (21) are respectively located in the mounting grooves (201). A mounting block (22) is arranged at the lower end of each of the first springs (21), wherein a first rolling mill (23) is arranged between two of the mounting blocks (22) and between the other two mounting blocks (22). Two first mounting seats (24) are arranged at the lower end of the upper rolling mill (2). ), second rollers (25) are arranged on adjacent side walls of the two first mounting seats (24), a lower roller seat (26) is arranged inside the hot rolling mill (1), three groups of second mounting seats (261) are arranged on the upper end of the lower roller seat (26), each group of second mounting seats (261) includes two, and a third roller (262) is arranged between each group of second mounting seats (261), and the upper end of the upper roller seat (2) is fixedly connected to the first mounting plate (27) by bolts, and the first mounting plate (27) is located directly above the first spring (21).

2. A hot rolling structure for producing low stamping scrap cold rolled steel strip according to claim 1, characterized in that: Four second springs (28) are arranged inside the upper roller seat (2), the second springs (28) are respectively located in the mounting grooves (201), and the second springs (28) are located at the lower end of the first mounting plate (27), and second mounting plates (281) are arranged at both ends of the second spring (28), and the two second mounting plates (281) are both located at one end of the first spring (21) away from the mounting block (22).

3. A hot rolling structure for producing low stamping scrap cold rolled steel strip according to claim 1, characterized in that: A servo motor (3) is arranged at the upper end of the hot rolling mill (1); a threaded column (31) is fixedly connected to the output end of the servo motor (3); an end of the threaded column (31) away from the servo motor (3) is located inside the hot rolling mill (1); a driving block (32) is threadedly connected to the side wall of the threaded column (31); and the side wall of the driving block (32) is fixedly connected to the upper rolling roller seat (2).

4. A hot rolling structure for producing low stamping scrap cold rolled steel strip according to claim 3, characterized in that: The side wall of the upper rolling roller seat (2) is provided with a limit block (33), and the limit block (33) is penetrated by a limit column (34) for sliding connection.

5. A hot rolling structure for producing low stamping scrap cold rolled steel strip according to claim 1, characterized in that: The upper end of the upper roller seat (2) is fixedly connected to a third mounting plate (29) via bolts.

6. A hot rolling structure for producing low stamping scrap cold rolled steel strip according to claim 1, characterized in that: A rubber pad (271) is provided at the upper end of the first mounting plate (27).

Images