A device for automatically adjusting the stacking relationship between two adjacent rolling mills

Abstract

The present invention discloses a device for automatically adjusting the stacking and pulling relationship between two adjacent rolling mills, comprising: a wire bottom plate, a wire vertical plate, which are arranged on the edge of the wire bottom plate along the steel feeding direction of the wire from the outlet of the first rolling mill to the entrance of the second rolling mill; a wire baffle, which is vertically arranged on the wire bottom plate and parallel to the wire vertical plate, and forms a wire channel with the wire vertical plate, the wire channel is used for the wire to pass through and guide the wire before the second rolling mill bites the steel; a vertical plate cylinder, which is fixedly connected near the wire baffle and outside the wire channel, the output end of the vertical plate cylinder is fixedly connected to the wire vertical plate, and the vertical plate cylinder is used to make the wire vertical plate leave the wire bottom plate, thereby making the wire bend freely on the wire bottom plate to adjust the stacking and pulling relationship; after using the present invention, the operation status of the production line is significantly improved, firstly, the rolling is smooth, the rolling parameters of the production line are stable, and the production is seldom affected by changes in temperature, speed and material type.

Description

Technical Field

[0001] The invention belongs to the field of wire rolling, and in particular relates to a device for automatically adjusting the stacking relationship between two adjacent rolling mills. Background Art

[0002] The pile-pull relationship control is essentially to detect the motor torque of the upstream frame in the two adjacent working frames, store it in memory, form the actual tension value indicating the tension in the billet, and the deviation between it and the set tension given value. The speed of the upstream frame is corrected by proportional and integral control to coordinate the relationship between the upstream and downstream frames to achieve the pile-pull relationship control. The key to achieving the pile-pull relationship control is to accurately measure the rolling torque of each rolling mill. The system detects the armature torque of the motor of the corresponding frame and obtains the rolling torque value of the rolling mill indirectly through filtering, compensation and other calculations.

[0003] The existing technology sets the stack-pull relationship to a fixed value in advance during production. As the production runs, the temperature of the online steel billet changes, the degree of wear of the roll grooves, the degree of wear of the guide rollers, the degree of wear of the guide grooves, and the cooling water and other factors change, the stack-pull relationship set in advance can no longer meet the production needs, resulting in substandard product performance and downtime for scrap steel processing. On-site operators need to constantly adjust the rough and medium roll gaps and guides to meet production needs, which invisibly increases the labor intensity of personnel. As the equipment is continuously upgraded and transformed, and the production capacity is increased, the original design can no longer meet the existing production needs, so transformation is imperative. Summary of the invention

[0004] The purpose of the present invention is to provide a device for automatically adjusting the stacking relationship of two adjacent rolling mills, so as to solve the problem that the stacking relationship set in advance requires continuous adjustment of the roughing and medium rolling roll gap guides.

[0005] The present invention adopts the following technical solution: a device for automatically adjusting the stacking relationship between two adjacent rolling mills, comprising:

[0006] The wire bottom plate is horizontally set on the ground between two adjacent rolling mills.

[0007] The wire plate is arranged along any edge of the wire plate, and is arranged on the edge of the wire plate along the steel feeding direction of the wire from the outlet of the first rolling mill to the entrance of the second rolling mill.

[0008] The wire baffle is vertically arranged on the wire bottom plate and parallel to the wire vertical plate, forming a wire channel with the wire vertical plate. The wire channel is used for the wire to pass through and guide the wire before the second rolling mill bites the steel.

[0009] The vertical plate cylinder is fixedly connected near the wire baffle and outside the wire channel. The output end of the vertical plate cylinder is fixedly connected to the wire vertical plate. The vertical plate cylinder is used to lift the wire vertical plate after receiving the trigger command, so that the wire vertical plate leaves the wire bottom plate, and then the wire can be freely bent on the wire bottom plate to adjust the stacking relationship.

[0010] Furthermore, one end of the wire channel is the channel entrance, and the other end is the channel exit. An entrance fixed roller is arranged between the channel entrance and the exit of the first rolling mill, and an entrance movable roller is arranged between the entrance fixed roller and the channel entrance. The area between the entrance fixed roller and the entrance movable roller is used for the wire to pass through, thereby guiding the steel feeding direction of the wire, so that the wire can smoothly enter the wire channel.

[0011] Furthermore, an outlet fixed roller is provided between the channel outlet and the entrance of the second rolling mill, and the outlet fixed roller is used to guide the direction of the wire after passing through the wire channel, so that the wire can smoothly enter the entrance of the second rolling mill.

[0012] Furthermore, a first current detection module is provided on the first rolling mill. When the first current detection module detects that the current drop value is greater than a predetermined value, a trigger instruction is sent. A receiving module is provided on the vertical plate cylinder. After receiving the trigger instruction, the receiving module starts the vertical plate cylinder, so that the vertical plate cylinder lifts the wire vertical plate.

[0013] Furthermore, a second current detection module is provided on the second rolling mill. When the second current detection module detects that the current rise value is greater than a predetermined value, it sends a closing command. After receiving the closing command, the receiving module on the vertical plate cylinder starts the vertical plate cylinder again. At this time, the vertical plate cylinder lowers the wire vertical plate, so that the wire vertical plate and the wire baffle form a wire channel again to guide the next wire.

[0014] Furthermore, two vertical plate cylinders are provided, and are respectively arranged near the channel entrance and the channel exit.

[0015] The beneficial effects of the present invention are as follows: after utilizing the present invention, the operation condition of the production line is significantly improved. Firstly, the rolling is smooth, the rolling parameters of the production line are stable, and the production is seldom affected by changes in temperature, speed, and material type; secondly, with the stabilization of the rolling rhythm, the plastic deformation control of the rolled piece is reliable, and the appearance and mechanical properties of the steel are guaranteed; and because of the increase in production capacity, it has brought great help to the cost reduction and efficiency improvement work, environmental governance work, and equipment management work of the production workshop. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention.

[0017] Among them: 1. Wire bottom plate; 2. Wire vertical plate; 3. Wire baffle; 4. Vertical plate cylinder; 5. Wire channel; 6. Channel entrance; 7. Channel exit; 8. Entrance fixed roller; 9. Entrance movable roller; 10. Exit fixed roller; 11. Steel feeding direction. DETAILED DESCRIPTION

[0018] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] The present invention discloses a device for automatically adjusting the stacking relationship between two adjacent rolling mills, such as Figure 1 As shown, it includes a wire bottom plate 1, a wire vertical plate 2, a wire baffle 3 and a vertical plate cylinder 4. The wire bottom plate 1 is horizontally arranged on the ground between two adjacent rolling mills. The wire vertical plate 2 is arranged along any edge of the wire bottom plate 1 and is arranged on the edge of the wire bottom plate 1 along the steel feeding direction 11 of the wire from the outlet of the first rolling mill to the entrance of the second rolling mill. The wire baffle 3 is vertically arranged on the wire bottom plate 1. The wire baffle 3 is arranged parallel to the wire vertical plate 2. The wire baffle 3 and the wire vertical plate 2 form a wire channel 5. The wire channel 5 is used for the wire to pass through and guide the wire before the second rolling mill bites the steel.

[0020] The vertical plate cylinder 4 is fixedly connected near the wire baffle 3 and outside the wire channel 5. The output end of the vertical plate cylinder 4 is fixedly connected to the upper end of the wire vertical plate 2. The vertical plate cylinder 4 is used to lift the wire vertical plate 2 after receiving the trigger command, so that the wire vertical plate 2 leaves the wire bottom plate 1, thereby allowing the wire to bend freely on the wire bottom plate 1 to adjust the stacking relationship.

[0021] One end of the wire channel 5 is a channel entrance 6, and the other end is a channel exit 7. Two vertical plate cylinders 4 are provided, and are respectively arranged near the channel entrance 6 and the channel exit 7. Since the wire vertical plate 2 is relatively long, by providing two vertical plate cylinders 4, the two vertical plate cylinders 4 can cooperate with each other to easily grab and lift the wire vertical plate 2. If only one vertical plate cylinder 4 is provided, the wire vertical plate 2 is prone to tilt during the process of extracting the wire vertical plate 2, thereby avoiding affecting the normal passage of the wire.

[0022] An entrance fixed roller 8 is also provided between the channel entrance 6 and the first rolling mill exit, and an entrance movable roller 9 is also provided between the entrance fixed roller 8 and the channel entrance 6. The area between the entrance fixed roller 8 and the entrance movable roller 9 is used for the wire to pass through, and then the steel feeding direction 11 of the wire is guided, so that the wire smoothly enters the wire channel 5. By providing the entrance fixed roller 8 and the entrance movable roller 9, the wire passes along the gap between the two, the wire is guided, and the steel feeding direction 11 of the wire is adjusted after the wire passes through the gap between the two, so as to ensure that the wire enters the wire channel 5.

[0023] An exit fixed roller 10 is also provided between the channel exit 7 and the entrance of the second rolling mill. The exit fixed roller 10 is used to guide the direction of the wire after passing through the wire channel 5, so that the wire can smoothly enter the entrance of the second rolling mill. The direction of the wire after passing through the wire channel 5 may change slightly, so the exit fixed roller 10 is provided to guide the wire passing through the wire channel 5 to avoid a large change in the direction of the wire and prevent it from entering the entrance of the second rolling mill. Therefore, the exit fixed roller 10 is used to correct it.

[0024] The first rolling mill is provided with a first current detection module. When the first current detection module detects that the current drop value is greater than a predetermined value, a trigger instruction is sent. A receiving module is provided on the vertical plate cylinder 4. After receiving the trigger instruction, the receiving module starts the vertical plate cylinder 4. The second rolling mill is provided with a second current detection module. When the second current detection module detects that the current rise value is greater than a predetermined value, a closing instruction is sent. After receiving the closing instruction, the receiving module on the vertical plate cylinder 4 starts the vertical plate cylinder 4 again. At this time, the vertical plate cylinder 4 puts down the wire vertical plate 2, so that the wire vertical plate 2 and the wire baffle 3 form a wire channel 5 again to guide the next wire.

[0025] The processing of wires is flow-line. When one wire passes through the wire channel 5, the next wire will enter the wire channel 5 after an interval of 5-6 seconds. Therefore, the vertical plate cylinder 4 cannot be controlled manually. Therefore, a first current detection module, a second current detection module and a receiving module are set to control the start-up of the vertical plate cylinder 4, thereby increasing the processing speed of the wires, reducing the probability of generating scrap steel, and reducing production costs.

[0026] The above are only preferred embodiments of the present invention and are 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 device for automatically adjusting the stacking relationship between two adjacent rolling mills, characterized in that: include: The wire rod bottom plate (1) is horizontally arranged on the ground between two adjacent rolling mills. The wire rod stand (2) is arranged along any edge of the wire rod bottom plate (1), and is arranged on the edge of the wire rod bottom plate (1) along the steel feeding direction (11) of the wire rod from the outlet of the first rolling mill to the entrance of the second rolling mill. The wire baffle (3) is vertically arranged on the wire bottom plate (1), and is arranged parallel to the wire vertical plate (2), and forms a wire passage (5) with the wire vertical plate (2). The wire passage (5) is used for the wire to pass through and guide the wire before the second rolling mill bites the steel. A stand plate cylinder (4) is fixedly connected near the wire baffle (3) and outside the wire channel (5); an output end of the stand plate cylinder (4) is fixedly connected to the wire stand plate (2); the stand plate cylinder (4) is used to lift the wire stand plate (2) after receiving a trigger command, so that the wire stand plate (2) leaves the wire bottom plate (1), thereby allowing the wire to bend freely on the wire bottom plate (1) to adjust the stacking relationship; The second rolling mill is provided with a second current detection module. When the second current detection module detects that the current rise value is greater than a predetermined value, a closing command is sent. After receiving the closing command, the receiving module on the vertical plate cylinder (4) starts the vertical plate cylinder (4) again. At this time, the vertical plate cylinder (4) lowers the wire plate (2), so that the wire plate (2) and the wire baffle (3) form a wire channel (5) again to guide the next wire.

2. The device for automatically adjusting the stacking relationship between two adjacent rolling mills according to claim 1, characterized in that: One end of the wire channel (5) is a channel entrance (6), and the other end is a channel exit (7). An entrance fixed roller (8) is provided between the channel entrance (6) and the exit of the first rolling mill, and an entrance movable roller (9) is provided between the entrance fixed roller (8) and the channel entrance (6). The area between the entrance fixed roller (8) and the entrance movable roller (9) is used for the wire to pass through, thereby guiding the steel feeding direction (11) of the wire, so that the wire can smoothly enter the wire channel (5).

3. The device for automatically adjusting the stacking relationship between two adjacent rolling mills according to claim 2, characterized in that: An outlet fixed roller (10) is also provided between the channel outlet (7) and the entrance of the second rolling mill. The outlet fixed roller (10) is used to guide the direction of the wire after passing through the wire channel (5), so that the wire can smoothly enter the entrance of the second rolling mill.

4. The device for automatically adjusting the stacking relationship between two adjacent rolling mills according to claim 3 is characterized in that: The vertical plate cylinders (4) are provided in two numbers and are respectively arranged near the channel inlet (6) and the channel outlet (7).

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