Wire winding mill

Abstract

A wire winding rolling mill belongs to the technical field of rolling mills. The present invention includes a transmission mechanism, a frame, and a roller system. Prestressed steel wire is wound on the side of the frame. The roller system includes an upper working roller and a lower working roller. The upper working roller is connected to an upper bearing and an upper bearing seat at both ends, and the lower working roller is connected to a lower bearing and a lower bearing seat at both ends. A gap is left between the upper bearing seat and the frame, so that the upper bearing and the upper working roller can move axially along the frame; a space is left longitudinally between the lower bearing seat and the supporting frame, so that the lower bearing and the lower working roller can move up and down along the frame. The present invention effectively improves the strength and rigidity of the rolling mill frame, and the rolling force is ≥5000T, especially meeting the rolling requirements of large-size cylindrical products made of materials such as titanium alloy, stainless steel, high-temperature alloy and alloy steel with an outer diameter ≥10 meters and a height ≥3 meters.

Description

Technical Field

[0001] The invention belongs to the technical field of rolling mills, and in particular relates to a steel wire winding rolling mill. Background Art

[0002] At present, rolling mills at home and abroad, whether plate rolling mills or ring rolling mills, are single-function rolling mills that need to be used in conjunction with different equipment to form a fixed production line. It is extremely inconvenient to produce multiple varieties and small batches of products, which reduces work efficiency and is costly.

[0003] The traditional integral frame structure has good integrity, strength and rigidity, but if the load of the heavy rolling mill increases, the individual parts of the frame are too large, which may not only be impossible to manufacture, but also difficult to transport and install. The split frame is combined into one frame by tightening bolts on the upper and lower beams. This structure reduces the size and weight of the individual parts of the heavy press and reduces the difficulty of manufacturing, but the strength and rigidity of the frame are relatively poor.

[0004] For large-sized cylindrical products made of titanium alloy, aluminum alloy, stainless steel, high-temperature alloy and alloy steel with an outer diameter ≥10 meters and a height ≥3 meters, a rolling force ≥5000T is required. Traditional ring rolling machines do not meet the rolling force requirements due to their single-roller drive and bearing structures. Summary of the invention

[0005] The present invention is aimed at the above-mentioned problems, makes up for the shortcomings of the prior art, and provides a wire winding rolling mill; the present invention effectively improves the strength and rigidity of the rolling mill frame, and the rolling force is ≥5000T, and can especially meet the rolling requirements of large-size tube products made of titanium alloy, stainless steel, high-temperature alloy and alloy steel with an outer diameter ≥10 meters and a height ≥3 meters.

[0006] To achieve the above purpose, the present invention adopts the following technical solution.

[0007] The present invention provides a wire winding rolling mill, comprising a transmission mechanism, a frame, and a rolling roller system, characterized in that prestressed steel wire is wound on the side of the frame, and the rolling roller system comprises an upper working roller and a lower working roller, the two ends of the upper working roller are connected to an upper bearing and an upper bearing seat, and the two ends of the lower working roller are connected to a lower bearing and a lower bearing seat, a gap is left between the upper bearing seat and the frame, so that the upper bearing and the upper working roller can move axially along the frame; a space is left longitudinally between the lower bearing seat and the frame, so that the lower bearing and the lower working roller can move up and down along the frame, the upper working roller and the lower working roller are both connected to the transmission mechanism, and an upper working roller entry and exit mechanism and a lifting piston cylinder are also provided on the outer side of the frame, the upper working roller is connected to the upper working roller entry and exit mechanism, and the lower bearing seat is connected to the piston rod of the lifting piston cylinder.

[0008] Furthermore, the transmission mechanism includes a driver, a reducer and two sets of telescopic universal couplings, the driver is connected to one end of the two sets of telescopic universal couplings through the reducer, and the other ends of the two sets of telescopic universal couplings are connected to the upper working roller and the lower working roller respectively.

[0009] Furthermore, the frame includes two archways arranged on the left and right, each of the archways is formed by connecting two upper and lower U-shaped split structures, the two U-shaped split structures are positioned and connected up and down, and are fixed on the outer side surfaces by prestressed steel wire winding.

[0010] Furthermore, a heating mechanism is also provided inside the upper working roll and the lower working roll.

[0011] Furthermore, the upper working roller and the lower working roller both adopt a structure formed by two inner and outer layers being inlaid and connected.

[0012] Furthermore, guide rollers are respectively arranged on the front and rear sides of the lower working roller, and the two guide rollers act synchronously to assist the rolling of the billet.

[0013] Furthermore, the carrying frame is also provided with a locking device at a position corresponding to the upper working roller, and the locking device is used to lock and position the upper working roller entry and exit mechanism.

[0014] Beneficial effects of the present invention.

[0015] The invention has the functions of rolling cylinders, plates and special-shaped parts, has high integration, convenient operation and wide application range, which not only improves work efficiency but also reduces costs; the advantages of the wire winding structure are adopted to effectively improve the strength and rigidity of the frame, greatly reduce the dead weight and manufacturing difficulty of the heavy-duty press, and significantly reduce the manufacturing of the heavy-duty rolling mill; the upper and lower working rollers are both designed with a split structure, which is convenient for subsequent roller replacement and maintenance, and reduces the manufacturing cost of the rollers; a heating mechanism can also be arranged inside the rollers as required, which can effectively reduce the temperature loss during the rolling process; the rolling force is large, and for large-size cylinder products of titanium alloy, stainless steel and high-temperature alloy with an outer diameter of ≥10 meters and a height of ≥3 meters, a rolling force of ≥5000T is required. The traditional ring rolling machine is driven by a single roller, and the bearing structures such as bearings do not meet the rolling force requirements; it can replace traditional free forging and realize near-net forming, which can fill the gap in the integrated scientific research and production of large-diameter and high-size cylinder parts in China, and can effectively reduce the welding defects caused by the welding method of large cylinder parts that cannot be produced as a whole, and meet the needs of various industrial applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described herein are only used to explain the present invention and are not used to limit the present invention.

[0017] Figure 1 It is a side structural schematic diagram of the present invention.

[0018] Figure 2 It is a schematic diagram of the top structure of the present invention.

[0019] Markings in the figure: 1 is the driver, 2 is the reducer, 3 is the telescopic universal coupling, 4 is the upper working roll, 5 is the lower working roll, 6 is the frame, 7 is the upper working roll in and out mechanism, 8 is the locking device, 9 is the guide roller, and 10 is the blank. DETAILED DESCRIPTION

[0020] As shown in the accompanying drawings, this embodiment provides a wire winding rolling mill, including a transmission mechanism, a frame 6, and a roller system. The supporting frame 6 includes two archways arranged on the left and right. Each archway is cast and connected by a two-petal U-shaped structure, and is fixed on the outer side by wire winding.

[0021] The roller system includes an upper working roller 4 and a lower working roller 5, which are components that cause metal plastic deformation. The upper working roller 4 and the lower working roller 5 are both structured in sections, which is convenient for subsequent roller replacement and maintenance and reduces the roller manufacturing cost. The roller size is reversed according to the final requirements of the product, and the roller force must meet the rolling force requirements.

[0022] The two ends of the upper working roller 4 are connected to the upper bearing and the upper bearing seat, and the two ends of the lower working roller 5 are connected to the lower bearing and the lower bearing seat. A gap is left between the upper bearing seat and the frame 6, so that the upper bearing seat and the upper working roller 4 can move axially along the frame 6, and a space is left longitudinally between the lower bearing seat and the frame 6, so that the lower bearing seat and the lower working roller 5 can move up and down along the frame 6. The upper working roller 4 and the working lower roller 5 realize the material rolling deformation process through their respective movements.

[0023] The material of the rolling roller and whether to use the heating method depend on the purpose. For the rolling of special-purpose materials, such as high-temperature alloys, titanium alloys, aluminum alloys, and magnesium alloys, a heating mechanism is set inside the upper working roller 4 and the lower working roller 5, which can effectively reduce the temperature loss during the rolling process. If the heating method is used, the outer layer material of the upper working roller 4 and the lower working roller 5 is made of hot working die steel.

[0024] The upper working roll 4 and the lower working roll 5 are both connected to a transmission mechanism, which includes a driver 1 (motor, internal combustion engine or hydraulic pump), a reducer 2 and two sets of telescopic universal couplings 3. The driver 1 is connected to one end of the two sets of telescopic universal couplings 3 through the reducer 2, and the other ends of the two sets of telescopic universal couplings 3 are connected to the upper working roll 4 and the lower working roll 5, respectively, to achieve conversion between the output power and the power required by the upper working roll 4 and the lower working roll 5.

[0025] It is particularly pointed out that the telescopic universal coupling 3 is a public structure in the art, which can be found on the Internet (such as the model SWC-BH standard telescopic welded universal coupling of Zhenjiang Lianxin Coupling Co., Ltd.), which can be telescoped internally according to the horizontal movement or up and down movement of the connected upper working roller 4 and lower working roller 5 to achieve overall movement, and its specific structure will not be repeated here.

[0026] An upper working roll in-and-out mechanism 7 is also provided on the outer side of the frame 6, and a lower working roll lifting piston cylinder is provided in the inner window. The upper working roll 4 is connected to the upper working roll in-and-out mechanism 7, and the lower bearing seat is connected to the piston rod of the lifting piston cylinder.

[0027] The upper working roller in-and-out mechanism 7 is provided with two stations, a loading station and a waiting station, and the upper working roller in-and-out mechanism 7 moves horizontally relative to the ground. When loading begins, the upper working roller 4 is located at the waiting station for placing the blank 10. After placing the blank 10, the upper working roller 4 enters the loading station, and the upper working roller in-and-out mechanism 7 moves horizontally relative to the ground.

[0028] The lower bearing seat is driven to move up and down by the piston rod of the lifting piston cylinder.

[0029] Guide rollers 9 are provided on the front and rear sides of the lower working roller 5 , respectively. The two guide rollers 9 act synchronously to assist the rolling of the billet 10 .

[0030] The frame 6 is also provided with a locking device 8 corresponding to the upper working roller 4. There are two sets of locking devices 8 installed between the vertical columns of the archway of the frame 6. The locking device 8 is used to lock and position the horizontal axial movement of the upper working roller 4.

[0031] The present invention mainly includes the following actions in rolling metal materials:

[0032] 1. Open the locking device 8, open the upper working roller 4 and the upper working roller in-and-out mechanism 7 to the material waiting station; according to the incoming material size of the blank 10, set the guide rollers 9 on both sides to the material waiting station;

[0033] 2. Place the blank 10 and fit it to the lower working roll 5 and the guide rolls 9 on both sides;

[0034] 3. The upper working roller in-and-out mechanism 7 moves to the loading station, the locking device 8 is closed, and the upper working roller 4 and the lower working roller 5 press the blank 10 with a certain pre-pressure;

[0035] 4. Start rolling according to the set rolling process;

[0036] 5. After rolling is completed, the locking device 8 is opened, and the upper working roll in-and-out mechanism 7 is moved out to the material waiting position;

[0037] 6. After rolling is completed, transfer the finished products to the designated area.

[0038] It can be understood that the above specific description of the present invention is only used to illustrate the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Those skilled in the art should understand that the present invention can still be modified or replaced by equivalents to achieve the same technical effects; as long as the use requirements are met, they are within the protection scope of the present invention.

Claims

1. A wire winding mill, comprising a transmission mechanism, a frame (6), and a roller system, characterized in that: Prestressed steel wire is wound around the side of the frame (6); the roller system comprises an upper working roller (4) and a lower working roller (5); the upper working roller (4) is connected to an upper bearing and an upper bearing seat at both ends; the lower working roller (5) is connected to a lower bearing and a lower bearing seat at both ends; a gap is left between the upper bearing seat and the frame (6) so that the upper bearing and the upper working roller (4) can move axially along the frame (6); a space is left longitudinally between the lower bearing seat and the frame (6) so that the lower bearing and the lower working roller (5) can move up and down along the frame (6); the upper working roller (4) and the lower working roller (5) are both connected to the transmission mechanism; an upper working roller entry and exit mechanism (7) and a lifting piston cylinder are also provided on the outer side of the frame (6); the upper working roller (4) is connected to the upper working roller entry and exit mechanism (7); and the lower bearing seat is connected to the piston rod of the lifting piston cylinder; The frame (6) comprises two archways arranged on the left and right, each of the archways being formed by connecting two upper and lower U-shaped split structures, the two U-shaped split structures being positioned and connected up and down, and being connected and fixed on the outer side surfaces by winding with prestressed steel wire; The upper working roller entry and exit mechanism (7) is provided with two stations, namely a loading station and a waiting station. The upper working roller entry and exit mechanism (7) moves horizontally relative to the ground. When loading begins, the upper working roller (4) is located at the waiting station to facilitate placement of the blank (10). After placement of the blank (10), the upper working roller (4) enters the loading station, and the upper working roller entry and exit mechanism (7) moves horizontally relative to the ground. The frame (6) is further provided with a locking device (8) at a position corresponding to the upper working roller (4), and the locking device (8) is used to lock and position the upper working roller entry and exit mechanism (7); Guide rollers (9) are also provided on the front and rear sides of the lower working roller (5), respectively, and the two guide rollers (9) act synchronously to assist the rolling of the billet (10); The main operations in rolling metal materials are as follows: The locking device (8) is opened, the upper working roller (4) and the upper working roller entry and exit mechanism (7) are opened to the material waiting station, and the guide rollers (9) on both sides are set to the material waiting station according to the incoming material size of the billet (10); the billet (10) is placed in contact with the lower working roller (5) and the guide rollers (9) on both sides; the upper working roller entry and exit mechanism (7) moves to the loading station, the locking device (8) is closed, and the upper working roller (4) and the lower working roller (5) press the billet (10) with a certain pre-pressure; rolling is started according to the set rolling process; after rolling is completed, the locking device (8) is opened, and the upper working roller entry and exit mechanism (7) is opened to the material waiting station; after rolling is completed, the finished product after rolling is transferred to a designated area.

2. A wire winding mill according to claim 1, characterized in that: The transmission mechanism comprises a driver (1), a reducer (2) and two sets of telescopic universal couplings (3); the driver (1) is connected to one end of the two sets of telescopic universal couplings (3) through the reducer (2), and the other ends of the two sets of telescopic universal couplings (3) are connected to the upper working roller (4) and the lower working roller (5).

3. A wire winding mill according to claim 1, characterized in that: A heating mechanism is also provided inside the upper working roller (4) and the lower working roller (5).

4. A wire winding mill according to claim 1, characterized in that: The upper working roller (4) and the lower working roller (5) both adopt a structure formed by two inner and outer layers being inlaid and connected.

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