A device for effectively preventing strip deviation at the entry loop of an acid pickling plant

Abstract

The utility model discloses an effective device that prevents the deviation of strip steel in the entrance loop of pickling and rolling workshop, relates to pickling and rolling workshop technical field, including entrance loop trolley, both sides of the top of entrance loop trolley are all fixedly connected with mounting panel, and the rotatable connection of first deviation rectification roller has between two mounting panels, and the fixed connection of first deviation detection frame has between two mounting panels, and the inside mounting of first deviation detection frame has first detection grating, and the fixed mounting of first deviation rectification electric cylinder has in one side of mounting panel, both sides of the top of entrance loop trolley are all fixedly connected with fixed plate, and the rotatable connection of guide roller has between two fixed plates. The utility model discloses through setting two groups of detection grating and deviation rectification electric cylinder, can carry out the detection to the strip steel position, carries out the automatic deviation rectification to the strip steel, makes the strip steel always in the center position of roller, to reduce the loss that strip steel side portion was scraped in the entrance loop by steel structure and caused.

Description

Technical Field

[0001] This utility model relates to the field of pickling and rolling workshop technology, specifically a device for effectively preventing the slip strip at the entrance of the pickling and rolling workshop from deviating. Background Technology

[0002] The inlet looper is a key piece of equipment in the pickling and rolling mill used to store strip steel and ensure a balanced production rhythm. To ensure continuous production of the inlet looper in the pickling and rolling line, the inlet looper has four layers with an effective capacity of 650m. The inlet looper stores a sufficient length of strip steel to ensure that the strip steel continues to run in the pickling section during the stop of the inlet section.

[0003] The entry looper trolley consists of a welded frame with four wheels. Four guide rollers are mounted on the frame and adjusted along a track by eccentric sleeves to keep the looper aligned along its working stroke. The looper frame supports non-drive guides, channel rollers, and support rollers. Four auxiliary wheels are installed for moving the looper in a direction perpendicular to the strip direction, moving it beyond the track accessible to the shop crane. Auxiliary equipment includes a maintenance cart and a crossbeam for removing the looper from the track.

[0004] In actual production and application, the above design has the following drawbacks: (1) When the inlet looper is in the full position, due to the excessive length of the stored strip, only the tension rollers of the inlet and outlet loopers are straightened, which will increase the possibility that the strip will deviate from the center during operation. (2) Poor shape of hot-rolled incoming strip. During the punching and unbuckling process, the strip will run out of the roll surface due to the back-and-forth swinging of the strip, resulting in the strip edge being scratched by the steel structure. (3) There is no correction roller device on the inlet looper trolley. After the strip deviates from the correct direction at the inlet looper, it will only slow down and will not automatically correct itself, which will affect production efficiency. Utility Model Content

[0005] Technical problems to be solved The purpose of this invention is to overcome the shortcomings of the existing technology and provide a device to effectively prevent the strip from deviating in the entrance looper of the pickling and rolling workshop. This device reduces the deviation of the entrance looper, ensures that the strip is centered in the looper, and does not affect production. It also eliminates the problem of the entrance looper continuing to run and scratch the edge of the strip when it deviates continuously, thus facilitating the operation of the user.

[0006] Technical solution To achieve the above objectives, this utility model provides the following technical solution: a device for effectively preventing the strip steel from deviating at the entrance of the pickling and rolling workshop, comprising an entrance looper trolley, mounting plates fixedly connected to both sides of the top of the entrance looper trolley, a first correction roller rotatably connected between the two mounting plates, a first deviation detection frame fixedly connected between the two mounting plates, a first detection grating installed on the inner side of the first deviation detection frame, a first correction electric cylinder fixedly installed on one side of the mounting plate, fixing plates fixedly connected to both sides of the top of the entrance looper trolley, a guide roller rotatably connected between the two fixing plates, and a movable roller assembly provided at the top of the fixing plate.

[0007] The present invention is further configured such that the movable roller assembly includes a cover plate, a screw, and a throttle, the two ends of the cover plate are fixedly connected to the top of the fixed plate by bolts, the outer side of the screw is threadedly connected to the inner wall of the cover plate, and the bottom end of the throttle is fixedly connected to the top of the screw.

[0008] The present invention is further configured such that the movable roller assembly includes a mounting block, a track, and a sliding plate. The top end of the mounting block is movably connected to the bottom end of the screw. The track is fixedly connected to the inner walls of both sides of the fixed plate. The sliding plate is fixedly connected to both sides of the mounting block and slidably connected to the outer side of the track.

[0009] The present invention is further configured such that the movable roller assembly includes a second correction roller, which is rotatably connected between the two mounting blocks.

[0010] The present invention is further configured such that a second deviation detection frame is fixedly connected between the two mounting blocks, and a second detection grating is installed on the inner side of the second deviation detection frame.

[0011] The present invention is further configured such that a second correction electric cylinder is fixedly connected to one side of the mounting block, and the second correction electric cylinder is slidably connected to the outside of the fixed plate.

[0012] The present invention is further configured such that a machine box is fixedly connected to the top of the entrance looper trolley, and a control cabinet is fixedly connected to the top of the entrance looper trolley.

[0013] Beneficial effects: I. This utility model can detect the position of the strip steel by setting two sets of detection gratings and correction electric cylinders, and automatically correct the strip steel so that the strip steel is always in the center position of the roller, thereby reducing the loss caused by the strip steel edge being scratched by the steel structure in the inlet looper.

[0014] II. This utility model, through the set movable roller assembly, can adjust the vertical position of the second set of detection gratings and the correction electric cylinder. By rotating the handle, the screw is driven to rotate, which can drive the mounting block to move up and down, and at the same time drive the second correction roller, the second deviation detection frame and the second correction electric cylinder to move, thereby adjusting the position of the second set of detection and correction, and improving flexibility.

[0015] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model; Figure 2 This is a schematic diagram of the cold rolling line path structure of this utility model; Figure 3 This is a schematic diagram of the corrective roller structure of this utility model; Figure 4 This is a schematic diagram of the adjustment component structure of this utility model.

[0017] In the diagram: 1. Inlet looper trolley; 2. Mounting plate; 3. First correction roller; 4. First deviation detection frame; 5. First detection grating; 6. First correction electric cylinder; 7. Fixed plate; 8. Guide roller; 9. Movable roller assembly; 901. Cover plate; 902. Screw; 903. Rotary handle; 904. Mounting block; 905. Track; 906. Sliding plate; 907. Second correction roller; 10. Second deviation detection frame; 11. Second detection grating; 12. Second correction electric cylinder; 13. Chassis; 14. Control cabinet. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figure 1-4As shown, this utility model provides a technical solution: a device for effectively preventing the strip steel at the entrance of the pickling and rolling workshop from running off-center, including an entrance looper trolley 1, mounting plates 2 are fixedly connected to both sides of the top of the entrance looper trolley 1, a first correction roller 3 is rotatably connected between the two mounting plates 2, a first deviation detection frame 4 is fixedly connected between the two mounting plates 2, a first detection grating 5 is installed on the inner side of the first deviation detection frame 4, a first correction electric cylinder 6 is fixedly installed on one side of the mounting plate 2, a fixing plate 7 is fixedly connected to both sides of the top of the entrance looper trolley 1, a guide roller 8 is rotatably connected between the two fixing plates 7, and a movable roller assembly 9 is provided at the top of the fixing plate 7; By setting two sets of detection gratings and correction electric cylinders, the position of the strip can be detected and the strip can be automatically corrected to keep the strip in the center of the roller, so as to reduce the loss caused by the strip edge being scratched by the steel structure in the inlet loop. The vertical position of the second set of detection gratings and correction electric cylinders can be adjusted by the set movable roller assembly 9.

[0020] like Figure 1 , Figure 3 and Figure 4 As shown, the movable roller assembly 9 includes a cover plate 901, a screw 902, a throttle 903, a mounting block 904, a track 905, a sliding plate 906, and a second correction roller 907. The two ends of the cover plate 901 are fixedly connected to the top of the fixed plate 7 by bolts. The outer side of the screw 902 is threadedly connected to the inner wall of the cover plate 901. The bottom end of the throttle 903 is fixedly connected to the top end of the screw 902. The top end of the mounting block 904 is movably connected to the bottom end of the screw 902. The track 905 is fixedly connected to the inner walls of both sides of the fixed plate 7. The sliding plate 906 is fixedly connected to both sides of the mounting block 904 and slidably connected to the outer side of the track 905. The second correction roller 907 is rotatably connected between the two mounting blocks 904. By rotating the throttle 903, the screw 902 is driven to rotate, which in turn drives the mounting block 904 to move up and down. At the same time, the sliding plate 906 slides on the track 905. When the mounting block 904 moves, it can drive the second correction roller 907, the second deviation detection frame 10 and the second correction electric cylinder 12 to move, thereby adjusting the vertical position of the second set of detection and correction.

[0021] like Figure 1 , Figure 3 and Figure 4 As shown, a second deviation detection frame 10 is fixedly connected between two mounting blocks 904. A second detection grating 11 is installed on the inner side of the second deviation detection frame 10. A second correction electric cylinder 12 is fixedly connected to one side of the mounting block 904. The second correction electric cylinder 12 is slidably connected to the outer side of the fixed plate 7. A machine box 13 is fixedly connected to the top of the inlet looper trolley 1. A control cabinet 14 is fixedly connected to the top of the inlet looper trolley 1. When the strip passes through the second straightening roller 907, the position of the strip is detected by the second detection grating 11 inside the second deviation detection frame 10, and automatic deviation correction is performed by the second straightening electric cylinder 12. The data of the detection grating is collected and analyzed by the chassis 13, and the signal of the chassis 13 is received by the control cabinet 14 and the straightening electric cylinder is controlled to perform deviation correction.

[0022] Working principle: Refer to the appendix when using it. Figure 2 After the strip passes over the first straightening roller 3, it passes under the guide roller 8 and above the second straightening roller 907 in sequence before moving out. When the strip passes the first straightening roller 3, the position of the strip is detected by the first detection grating 5 inside the first deviation detection frame 4. When the strip position is detected to be off, the first straightening electric cylinder 6 is activated to extend and retract, which can correct the position of the strip and prevent the strip from continuing to deviate. Similarly, when the strip passes the second straightening roller 907, the position of the strip is detected by the second detection grating 11 inside the second deviation detection frame 10, and the second straightening electric cylinder 12 performs automatic correction to keep the strip in the center of the roller, so as to reduce the loss caused by the strip edge being scratched by the steel structure in the entrance loop. By rotating the throttle 903, the screw 902 is driven to rotate, which in turn drives the mounting block 904 to move up and down. At the same time, the sliding plate 906 slides on the track 905. When the mounting block 904 moves, it can drive the second correction roller 907 to move, thereby adjusting the position of the second correction roller 907. Simultaneously, it drives the second deviation detection frame 10 and the second correction electric cylinder 12 to move, thereby adjusting the position of the second set of detection and correction, thus improving flexibility.

[0023] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0024] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A device for effectively preventing strip deviation of an entry loop in an acid pickling plant, comprising an entry loop trolley (1), characterized in that: Mounting plates (2) are fixedly connected to both sides of the top of the entrance looper trolley (1). A first correction roller (3) is rotatably connected between the two mounting plates (2). A first deviation detection frame (4) is fixedly connected between the two mounting plates (2). A first detection grating (5) is installed on the inner side of the first deviation detection frame (4). A first correction electric cylinder (6) is fixedly installed on one side of the mounting plate (2). Fixing plates (7) are fixedly connected to both sides of the top of the entrance looper trolley (1). A guide roller (8) is rotatably connected between the two fixing plates (7). A movable roller assembly (9) is provided at the top of the fixing plate (7).

2. A device for preventing strip deviation at the entry loop of an acid pickling line according to claim 1, characterized in that: The movable roller assembly (9) includes a cover plate (901), a screw (902) and a throttle (903). The two ends of the cover plate (901) are fixedly connected to the top of the fixed plate (7) by bolts. The outer side of the screw (902) is threadedly connected to the inner wall of the cover plate (901). The bottom end of the throttle (903) is fixedly connected to the top of the screw (902).

3. The device for preventing strip deviation at the entry loop of an acid pickling line according to claim 2, characterized in that: The movable roller assembly (9) further includes a mounting block (904), a track (905), and a sliding plate (906). The top end of the mounting block (904) is movably connected to the bottom end of the screw (902). The track (905) is fixedly connected to the inner walls of both sides of the fixed plate (7). The sliding plate (906) is fixedly connected to both sides of the mounting block (904) and is slidably connected to the outer side of the track (905).

4. The device for preventing strip deviation at the entry loop of an acid pickling line according to claim 3, characterized in that: The movable roller assembly (9) also includes a second correction roller (907), which is rotatably connected between two mounting blocks (904).

5. The device for preventing the strip from deviating in the entry loop of an acid pickling line according to claim 3, characterized in that: A second deviation detection frame (10) is fixedly connected between the two mounting blocks (904), and a second detection grating (11) is installed on the inner side of the second deviation detection frame (10).

6. The device for effectively preventing strip deviation at the entrance of the pickling and rolling workshop according to claim 3, characterized in that: A second correction electric cylinder (12) is fixedly connected to one side of the mounting block (904), and the second correction electric cylinder (12) is slidably connected to the outside of the fixing plate (7).

7. The device for preventing strip deviation at the entry loop of an acid pickling line according to claim 1, characterized in that: The top of the entrance looper trolley (1) is fixedly connected to a housing (13), and the top of the entrance looper trolley (1) is fixedly connected to a control cabinet (14).

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