A cold rolling production equipment for alloy single sheet

Abstract

This utility model discloses a cold rolling production equipment for single alloy plates in the field of alloy processing equipment. It includes a frame with a roller conveyor system, and a cold rolling mill and a feeding device on either side of the roller conveyor system. It also includes a control system for controlling the orderly operation of the roller conveyor system, the cold rolling mill, and the feeding device. The rolling mill includes a frame with a first lifting structure and a second lifting structure positioned correspondingly on its upper and lower sides. The lifting end of the first lifting structure has a first working roll structure, and the lifting end of the second lifting structure has a second working roll structure. A rolling gap is formed between the first and second working roll structures. The control system controls the feeding device to stably transport the alloy plate onto the roller conveyor system, enabling the roller conveyor system to stably transport the alloy plate to the cold rolling mill for cold rolling, achieving automated operation and improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of alloy processing equipment, and in particular to a cold rolling production equipment for alloy single sheet plates. Background Technology

[0002] The special steel industry is a pillar industry in my country. As a key national research and production base for special steel and a key national military supporting enterprise, Panzhihua Iron and Steel Group (Pangang) has made significant contributions to national defense and aerospace development. Currently, it also undertakes the research and development of key high-temperature alloys, special stainless steels, and titanium plates for several major national engineering projects. With the continuous development of China's aerospace, manufacturing, and basic industries, the demand for high-temperature alloy plates is constantly evolving towards higher homogeneity, higher performance, higher precision, and greater customization, leading to sustained growth in market demand.

[0003] The four-roll reversible cold rolling mill for producing high-temperature alloy plates suffers from low equipment and automation levels, resulting in numerous problems that fail to meet production and user needs. The mill's low automation, relying primarily on manual operation, leads to low efficiency, high labor intensity for workers, and poor product dimensional accuracy and shape, failing to meet user requirements. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, the technical problem to be solved by this utility model is: how to improve the working efficiency and quality of cold rolling of alloy plates.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A cold rolling production equipment for alloy single sheet includes a frame, a roller conveyor device on the frame, a cold rolling mill device and a feeding device on both sides of the roller conveyor device; it also includes a control system for controlling the roller conveyor device, the cold rolling mill device and the feeding device to achieve orderly operation.

[0007] The aforementioned rolling mill device includes a frame, on the upper and lower sides of which a first lifting structure and a second lifting structure are respectively provided in corresponding positions. The lifting end of the first lifting structure is provided with a first work roll structure, and the lifting end of the second lifting structure is provided with a second work roll structure. A rolling gap is formed between the first work roll structure and the second work roll structure.

[0008] Furthermore, both the aforementioned first working roll structure and the aforementioned second working roll structure are curved roll structures.

[0009] Furthermore, both the first lifting structure and the second lifting structure mentioned above are hydraulic lifting structures.

[0010] Furthermore, the aforementioned frame is equipped with an oil mist purification device.

[0011] Furthermore, a roller changing device is provided on one side of the frame, which descends to a position below the ground when not in operation.

[0012] Furthermore, two sets of roller conveyor devices are symmetrically arranged on both sides of the aforementioned cold rolling mill device, and the aforementioned feeding device is arranged on the side of the roller conveyor device away from the aforementioned cold rolling mill device.

[0013] Furthermore, the control system includes three control units, which are electrically connected to the roller conveyor, the cold rolling mill, and the feeding device, respectively. Each control unit is electrically connected to a sensor system, which is used to detect the operating status of the workstation.

[0014] Furthermore, the drive systems of the aforementioned roller conveyor, the aforementioned cold rolling mill, and the aforementioned feeding device are all DC bus drive systems.

[0015] Furthermore, the aforementioned feeding device includes a stacking platform and a gantry-type suction cup.

[0016] The beneficial effects of this utility model are:

[0017] The control system controls the feeding device to stably transport the alloy plate onto the roller conveyor, which then transports the alloy plate to the cold rolling mill for cold rolling. The entire process eliminates the need for manual handling of the alloy plate, achieving automated operation and improving work efficiency. Furthermore, the control system adjusts the rolling gap in real time according to the actual condition of the alloy plate, ensuring the best quality of the rolled alloy plate products. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is a top view schematic diagram of the structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the cold rolling mill device of this utility model;

[0021] The diagram is labeled as follows: 1-feeding device, 2-roller conveyor device, 3-cold rolling mill device, 4-roll changing device, 5-control system, 6-oil mist purification device, 21-first lifting structure, 22-second lifting structure, 23-first working roll structure, 24-second working roll structure. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] like Figures 1-3As shown in the figure, this application proposes an alloy single-sheet cold rolling production equipment, including a frame, a roller conveyor device 2, a cold rolling mill device 3 and a feeding device 1 respectively arranged on both sides of the roller conveyor device 2; and a control system 5, which is used to control the roller conveyor device 2, the cold rolling mill device 3 and the feeding device 1 to achieve orderly operation. The rolling mill device includes a frame, and a first lifting structure 21 and a second lifting structure 22 are respectively arranged on the upper and lower sides of the frame. The lifting end of the first lifting structure 21 is provided with a first work roll structure 23, and the lifting end of the second lifting structure 22 is provided with a second work roll structure 24; a rolling gap is formed between the first work roll structure 23 and the second work roll structure 24.

[0024] First of all, it should be stated that the control system 5 controls the feeding device 1 to stably transport the alloy plate to the roller conveyor device 2, so that the roller conveyor device 2 can stably transport the alloy plate to the cold rolling mill device 3 to realize the cold rolling process. The entire process does not require manual handling of the alloy plate, realizing automated operation and improving work efficiency. Moreover, the control system 5 adjusts the rolling gap in real time according to the actual state of the alloy plate, ensuring that the quality of the rolled alloy plate product is better.

[0025] The aforementioned cold rolling mill unit 3 is a single-stand four-high reversible cold rolling mill. Liftable work roller conveyors are configured before and after the rolls within the stand. These conveyors stably transport the alloy plate to be rolled to the rolling gap position, achieving a stable cold rolling process. Both the first lifting structure 21 and the second lifting structure 22 are hydraulic lifting structures. Displacement sensors detect the rolling gap, and the control system 5 enables precise adjustment. The first work roll structure 23 and the second work roll structure 24 are both bending roll systems. These bending roll systems utilize existing mill bending roll structures and are controlled by an electro-hydraulic servo constant pressure closed-loop system. The bending rolls ensure product dimensional accuracy and shape variation, effectively meeting user requirements. The entire mill structure uses an AC synchronous motor and a combined reducer to drive the upper and lower work rolls respectively. The drive shafts are universal joints with staggered arrangements. The rolling line elevation adjustment uses stepped pads. The unit is equipped with a process lubrication system that provides rolling lubricating oil with specific temperature, pressure, flow rate, and cleanliness to meet production process requirements. The system includes a rolling oil supply system and a rolling oil collection and treatment system, and is controlled by a PLC.

[0026] In this embodiment, a single-stand four-roll reversible cold rolling mill produces single sheets of high-temperature alloy cold-rolled steel. The overall production process adopts a "group rolling" process, with 4 to 6 single sheets produced simultaneously on the rolling line. Rolling is carried out according to a set total rolling force of 15,000 to 20,000 kN or a target thickness, and the total deformation per pass is controlled at 30% to 35%. The work roll pairing crown is 0.1 to 0.15 mm. The workpiece is lubricated with 46# machine oil. Circulating oil is used in the pre-finishing pass, and fresh oil is used in the finished pass, thereby further improving the efficiency and quality of the cold rolling process.

[0027] To improve the working environment around the cold rolling mill unit 3, the aforementioned frame is equipped with an oil mist purification device 6, which can absorb the oil and gas generated above the equipment through negative pressure suction, replacing existing oil mist absorption equipment in the plant area. Furthermore, to facilitate roll changing operations between the roller conveyor unit 2 and the cold rolling mill unit 3, a roll changing device 4 is installed on one side of the aforementioned frame. When not in operation, the roll changing device 4 is lowered below ground level. Specifically, a hydraulic lifting device raises and lowers the entire roll changing platform. During non-roll changing operations, the hydraulic lifting device lowers the entire roll changing device 4 into the mounting slot below ground level, and simultaneously, an electric cover automatically closes the upper opening of the mounting slot to ensure safety. The entire roll changing device 4 serves as the existing roll changing operation platform.

[0028] To further improve cold rolling efficiency, two sets of roller conveyor devices 2 are symmetrically arranged on both sides of the cold rolling mill device 3. The feeding device 1 is arranged on the side of the roller conveyor device 2 away from the cold rolling mill device 3. The symmetrical roller conveyors on both sides enable simultaneous cold rolling of multiple sets of metal plates, thereby improving efficiency.

[0029] The aforementioned control system 5 includes three control units, which are electrically connected to the roller conveyor 2, the cold rolling mill 3, and the feeding device 1, respectively. Each control unit is electrically connected to a sensor system used to detect the operating status of the workstations. Each control unit is configured with one or more parallel processor modules as needed, and each automation unit is connected to relevant peripheral devices (remote I / O). The unit can be operated manually, automatically, semi-automatically, and via HMI. The process automation system implements the model setting for basic automation at the lower level and supports the acquisition of management data from the MES system at the upper level. The drive systems of the roller conveyor 2, the cold rolling mill 3, and the feeding device 1 are all DC bus drive systems, specifically using a common DC bus drive system. The speed-regulating motors are AC variable frequency motors, and the rectifier feedback unit + inverter unit form a multi-drive system and a single-drive system with a common DC bus structure. The constant speed transmission equipment uses an MCC control system 5 with a common AC motor.

[0030] The aforementioned feeding device 1 includes a stacking platform and a gantry-type suction cup. The stacking platform is a lifting type. The gantry-type suction cup adopts a dual-axis structure with Y-axis and Z-axis. Both axes are driven by servo motors connected to reducers to achieve precise positioning. The Y-axis travel covers the feeding area, and the Z-axis is responsible for lifting action. A vacuum suction cup assembly is installed at the end of the Z-axis. Each suction cup pipeline is equipped with a solenoid valve, and the alloy plate is lifted and transported through the vacuum suction cup.

[0031] In summary, this utility model proposes an alloy single-sheet cold rolling production equipment, which is equipped with an automatic loading and unloading device, a conveyor roller conveyor, a four-roll reversible cold rolling mill, a hydraulic system, a process lubrication system, an oil mist purification system, etc. It can realize manual, semi-automatic and automatic production. While improving production efficiency, it also has the advantages of flexible production organization, simple and reliable operation, and convenient maintenance and repair.

Claims

1. An apparatus for cold rolling of alloyed single sheet, characterized by: The machine includes a frame, which is equipped with a roller conveyor device (2), and a cold rolling mill device (3) and a feeding device (1) are respectively arranged on both sides of the roller conveyor device (2); it also includes a control system (5), which is used to control the roller conveyor device (2), the cold rolling mill device (3) and the feeding device (1) to achieve orderly operation; The rolling mill device includes a frame, and a first lifting structure (21) and a second lifting structure (22) with corresponding positions are respectively provided on the upper and lower sides of the frame. The lifting end of the first lifting structure (21) is provided with a first work roll structure (23), and the lifting end of the second lifting structure (22) is provided with a second work roll structure (24). A rolling gap is formed between the first work roll structure (23) and the second work roll structure (24).

2. The apparatus according to claim 1, wherein: Both the first working roll structure (23) and the second working roll structure (24) are curved roll structures.

3. The alloy single-sheet cold rolling production equipment according to claim 1, characterized in that: Both the first lifting structure (21) and the second lifting structure (22) are hydraulic lifting structures.

4. The alloy single-sheet cold rolling production equipment according to claim 1, characterized in that: The frame is equipped with an oil mist purification device (6).

5. The alloy single-sheet cold rolling production equipment according to claim 1, characterized in that: A roller changing device (4) is provided on one side of the frame. The roller changing device (4) is lowered to a position below the ground when not in operation.

6. The alloy single-sheet cold rolling production equipment according to claim 1, characterized in that: The cold rolling mill (3) has two sets of roller conveyor devices (2) symmetrically arranged on both sides, and the feeding device (1) is arranged on the side of the roller conveyor device (2) away from the cold rolling mill (3).

7. The apparatus according to claim 1, wherein: the alloy sheet is a single sheet. The control system (5) includes three control units, which are electrically connected to the roller conveyor (2), the cold rolling mill (3) and the feeding device (1), respectively. Each control unit is electrically connected to a sensor system, which is used to detect the operating status of the workstation.

8. The apparatus according to claim 7, characterized in that: The drive systems of the roller conveyor (2), the cold rolling mill (3), and the feeding device (1) are all DC bus drive systems.

9. The apparatus according to claim 7, wherein: the alloy sheet is a single sheet. The feeding device (1) includes a stacking platform and a gantry suction cup.

Images