Strip deviation correcting structure of cold rolling production line

Abstract

The application relates to the technical field of steel strip production and processing equipment, in particular to a strip steel deviation rectifying structure of a cold rolling production line, which comprises a base, conveying frames and passing rollers, conveying frames are arranged at the front and back ends of the base, passing rollers are rotationally connected in the conveying frames, and the strip steel deviation rectifying structure further comprises a folding mechanism, a deviation rectifying mechanism and a cleaning mechanism, a folding mechanism is arranged in the middle of the base, a deviation rectifying mechanism for transversely deflecting the steel strip is arranged on the folding mechanism, the folding mechanism is used for adjusting the spacing of the deviation rectifying mechanism, and a cleaning mechanism for cleaning the steel strip is arranged on the front conveying frame. Through the folding mechanism and the deviation rectifying mechanism, the steel strip can be kept stable during the conveying process, and the steel strip can be accurately fine-tuned when needed, so that cracks caused by too large single deviation distance of the steel strip are avoided, and the quality of the steel strip during the deviation rectifying process is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of steel strip production and processing equipment, and in particular to a strip correction structure for a cold rolling production line. Background Technology

[0002] Cold-rolled steel strip is a steel product processed through cold rolling. It possesses high strength, high precision, and good surface quality, and is widely used in industries such as automotive, home appliances, and construction. In a cold rolling production line, the steel strip undergoes a series of equipment and process steps, such as uncoiling, straightening, rolling, and shearing, ultimately forming a finished product that meets requirements. The conveying of the steel strip is a crucial link in the cold rolling production line, requiring stable and continuous operation to ensure the smooth progress of subsequent processes.

[0003] Currently, various types of conveying equipment are used in cold rolling production lines, including conveyors, lifting devices, and roller conveyors. These devices are designed with the weight, dimensions, and conveying efficiency of the steel strip in mind to ensure smooth transport along the production line. However, in actual production, the steel strip can deviate due to various reasons, such as poor raw material shape, uneven equipment installation, or tilted tension rollers. This deviation not only affects the normal operation of the production line but can also lead to equipment damage and reduced product quality. Therefore, timely correction during conveying is a crucial measure to ensure both production efficiency and product quality.

[0004] However, existing belt alignment processes have some significant drawbacks. Whether manual or automated, most alignment operations are performed with the steel strip taut. This method changes the strip's position by adjusting tension or moving the alignment rollers, but in this process, the straight strip is subjected to additional bending stress. When the strip is subjected to excessive bending stress, it may bend in the transverse plane, even leading to breakage or cracks. This not only reduces product quality and yield but also increases production costs and safety hazards. Summary of the Invention

[0005] To overcome the drawback of bending stress damaging steel strip, this invention provides a strip straightening structure for a cold rolling production line.

[0006] The strip correction structure of the cold rolling production line includes a base, a conveyor frame and a guide roller. The base is equipped with conveyor frames at both the front and rear ends. The guide roller is rotatably connected inside the conveyor frame. It also includes a folding mechanism, a correction mechanism and a cleaning mechanism. The folding mechanism is set in the middle of the base. The correction mechanism is set on the folding mechanism for laterally deflecting the strip. The folding mechanism is used to adjust the spacing of the correction mechanism. The front conveyor frame is equipped with a cleaning mechanism for cleaning the strip.

[0007] Optionally, the folding mechanism includes a placement plate, a sliding seat, a first motor, a rack, a transmission wheel, and a connecting rod. The two placement plates are respectively connected to the left and right ends of the top of the base. Several sliding seats are slidably connected inside the two placement plates. A connecting rod is rotatably connected in the middle of each sliding seat, and adjacent connecting rods on the same side are rotatably connected. The first motor is installed on the frontmost sliding seat. A rack is provided on the top surface of the placement plate. The output shaft of the first motor is connected to a transmission wheel, and the transmission wheel meshes with the rack.

[0008] Optionally, the correction mechanism includes a mounting frame, a lead screw, a sliding frame, a pressure roller, a second motor, and a third motor. The two ends of the mounting frame are respectively connected to the sliding seats at the left and right ends, and the mounting frame is perpendicular to the placement plate. The sliding frame is slidably connected inside the mounting frame, and the lead screw is rotatably connected inside the mounting frame. The lead screw is threadedly connected to the sliding frame. The second motor is installed at the end of the mounting frame, and the output shaft of the second motor is connected to the lead screw. Two pressure rollers that are in contact with each other are rotatably connected to the sliding frame. A third motor is installed on each mounting frame, and the third motor is fixedly connected to one of the pressure rollers on the same mounting frame.

[0009] Optionally, the cleaning mechanism includes a mounting plate, a cleaning roller, a fourth motor, and a gear set. Mounting plates are connected to both ends of the rear side of the front conveyor frame. Two cleaning rollers are rotatably connected between the two mounting plates. The ends of the two cleaning rollers are connected to a gear set. A fourth motor is mounted on the mounting plate and is fixedly connected to the ends of the cleaning rollers.

[0010] Optionally, it also includes offset sensors and control panels, with offset sensors installed on both the front and rear conveyor frames and control panels installed on both the front and rear conveyor frames, and the control panels are wiredly connected to the offset sensors and all motors.

[0011] Optionally, it also includes cleaning strips, with several cleaning strips connected to the cleaning roller; it also includes cleaning strips, with three arc-shaped cleaning strips connected to each cleaning roller, the protruding cleaning strips further ensuring the cleaning effect on the steel strip.

[0012] Optionally, the pressure roller is provided with an annular rubber roller groove.

[0013] Optionally, it also includes a protective plate, with a protective plate connected to the rear side of the front conveyor frame, the protective plate being connected to the mounting plate, and the mounting plate and the protective plate covering the gear set.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. The folding and correction mechanisms ensure the steel belt remains stable during transport and allow for precise fine-tuning when needed. This prevents cracks from forming due to excessive single-time offset and guarantees the quality of the steel belt during the correction process.

[0016] 2. The grooves in the rubber roller of the pressure roller enable the pressure roller to adaptively form a certain elastic contact when it comes into contact with the steel strip. This elastic contact optimizes the stress on the steel strip during the correction process, thereby further protecting the integrity of the steel strip. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the installation structure of the conveyor frame, rollers, and offset sensor of the present invention.

[0019] Figure 3 This is a schematic diagram of the installation structure of the folding mechanism of the present invention.

[0020] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0021] Figure 5 This is a schematic diagram of the installation structure of the correction mechanism of the present invention.

[0022] Figure 6 This is a schematic diagram showing the connection relationship of the cleaning mechanism of the present invention.

[0023] Figure 7 This is a schematic diagram showing the connection relationship between the mounting plate, cleaning roller, and gear set of the present invention.

[0024] Figure 8 This is an exploded view of the cleaning mechanism of the present invention.

[0025] The components in the attached diagram are labeled as follows: 1: Base, 2: Conveyor frame, 3: Passing roller, 4: Folding mechanism, 41: Placement plate, 42: Sliding seat, 43: First motor, 44: Rack, 45: Transmission wheel, 46: Connecting rod, 5: Correction mechanism, 51: Mounting frame, 52: Lead screw, 53: Sliding frame, 54: Pressure roller, 541: Rubber roller groove, 55: Second motor, 56: Third motor, 6: Cleaning mechanism, 61: Mounting plate, 62: Cleaning roller, 63: Fourth motor, 64: Gear set, 65: Cleaning strip, 66: Protective plate, 7: Offset sensor, 71: Control panel. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the directional terms such as up, down, left, right, front, back, inside, and outside used in this text are based solely on the accompanying drawings and are not intended to specifically limit the invention.

[0027] Example: Strip correction structure in a cold rolling production line, such as Figures 1-8As shown, the system includes a base 1, a conveyor frame 2, and a guide roller 3. The base 1 has conveyor frames 2 installed at both the front and rear ends. The guide roller 3 is rotatably connected inside the conveyor frame 2. After the steel strip leaves the steel coil, it passes through the two conveyor frames 2 in sequence and passes through the middle of the guide roller 3 on the conveyor frame 2. The guide roller 3 contacts the steel strip to ensure the stability of the steel strip movement. The system also includes a folding mechanism 4, a correction mechanism 5, and a cleaning mechanism 6. The base 1 has a folding mechanism 4 in the middle. The folding mechanism 4 is equipped with a correction mechanism 5 for laterally deflecting the steel strip. The folding mechanism 4 is used to adjust the spacing of the correction mechanism 5. The front conveyor frame 2 is equipped with a cleaning mechanism 6 for cleaning the steel strip.

[0028] like Figure 3 and Figure 4 As shown, the folding mechanism 4 includes a placement plate 41, sliding seats 42, a first motor 43, a rack 44, a transmission wheel 45, and a connecting rod 46. Two placement plates 41 are respectively connected to the left and right ends of the top of the base 1 and are located between the two conveyor frames 2. Each placement plate 41 has four sliding seats 42 slidably connected inside it. A connecting rod 46 is rotatably connected to the middle of each sliding seat 42, and adjacent connecting rods 46 on the same side are rotatably connected to each other, ensuring that the spacing between the four sliding seats 42 can be flexibly adjusted. The first motor is installed on the foremost sliding seat 42. 43. A rack 44 is provided on the top surface of the front end of the placement plate 41. The output shaft of the first motor 43 is connected to a transmission wheel 45. The transmission wheel 45 meshes with the rack 44. When the first motor 43 starts, the first motor 43 drives the transmission wheel 45 to rotate. Through the fixed rack 44, the sliding seat 42 at the front end moves within the placement plate 41. Through the connecting rod 46 that rotates between the sliding seats 42, the distance between the sliding seats 42 is changed. Moreover, the correction mechanism 5 is located on the sliding seat 42 of the folding mechanism 4, so the distance of the correction mechanism 5 also changes synchronously.

[0029] like Figure 5As shown, the correction mechanism 5 includes a mounting frame 51, a lead screw 52, ​​a sliding frame 53, a pressure roller 54, a second motor 55, and a third motor 56. Both ends of the mounting frame 51 are fixedly connected to corresponding sliding seats 42 within the left and right end placement plates 41, respectively. The mounting frame 51 is perpendicular to the placement plates 41 and perpendicular to the direction of movement of the steel strip. A sliding frame 53 is slidably connected within the mounting frame 51, and a lead screw 52 is rotatably connected within the mounting frame 51. The end of the lead screw 52 passes through the mounting frame 51 and is threadedly connected to the sliding frame 53. The rotating lead screw 52 can move the sliding frame 53 left and right. A second motor 55 is mounted at the end of the mounting frame 51, and the output shaft of the second motor 55 is fixedly connected to the end of the lead screw 52. The sliding frame 56 rotates... Two contacting pressure rollers 54 are connected, and the steel strip passes between the two pressure rollers 54. Each mounting frame 51 is equipped with a third motor 56, which is fixedly connected to one of the pressure rollers 54 on the same mounting frame 51. When the second motor 55 is turned on, the second motor 55 moves the sliding frame 53 left and right through the lead screw 52, ​​thereby driving the pressure rollers 54 on the sliding frame 53 to move left and right. The contacting pressure rollers 54 exert sufficient pressure on the steel strip, thereby causing the steel strip to shift left and right. Moreover, when the third motors 56 on different sliding frames 53 are turned on individually, the length of the steel strip between the two mounting frames 51 can be adjusted. The third motor 56 does not have a self-locking function, that is, when the third motor 56 is turned off, the pressure rollers 54 can rotate arbitrarily.

[0030] like Figures 6-8 As shown, the cleaning mechanism 6 includes a mounting plate 61, a cleaning roller 62, a fourth motor 63, and a gear set 64. Mounting plates 61 are connected to both ends of the rear side of the front conveyor frame 2. Two cleaning rollers 62 are rotatably connected between the two mounting plates 61. The ends of the two cleaning rollers 62 are connected to a gear set 64, which consists of two meshing gears that cause the two cleaning rollers 62 to rotate in opposite directions. The fourth motor 63 is mounted on the mounting plate 61 and is fixedly connected to the end of one of the cleaning rollers 62. When the fourth motor 63 is turned on, it controls the rotation direction of the cleaning roller 62 and the position where the cleaning roller 62 contacts the steel belt. The rotation direction of the cleaning roller 62 is opposite to the movement direction of the steel belt, and this is transmitted through the gear set 64. Consequently, the rotation direction of the other cleaning roller 62 is also opposite to the movement direction of the steel belt. Sufficient sliding distance is created between the steel belt and the cleaning roller 62 to ensure effective cleaning of the steel belt.

[0031] like Figure 2As shown, it also includes an offset sensor 7 and a control panel 71. An offset sensor 7 is installed on both the front and rear conveyor frames 2. The offset sensor 7 is equipped with two detection heads, one at the bottom and one at the front, to ensure accurate measurement. A control panel 71 is installed on both the front and rear conveyor frames 2. The control panel 71 is wired to the offset sensor 7 and all motors. The control panel 71 processes the measurement results of the offset sensor 7 and calculates and controls the start and stop of the corresponding motors to complete the correction work.

[0032] like Figure 6 As shown, it also includes cleaning strips 65. Each cleaning roller 62 is connected to three arc-shaped cleaning strips 65. The protruding cleaning strips 65 can further ensure the cleaning effect on the steel strip.

[0033] like Figure 5 As shown, the pressure roller 54 is provided with an annular rubber roller groove 541. The rubber roller groove 541 is completely perpendicular to the axial direction of the pressure roller 54. The pressure roller 54 moves left and right to adjust the position of the steel strip. The design of the rubber roller groove 541 enables the pressure roller 54 to adaptively form a certain elastic contact when it contacts the steel strip, which helps to reduce the stress on the steel strip when it moves laterally and prevents the steel strip from cracking or breaking.

[0034] like Figure 8 As shown, it also includes a protective plate 66. The protective plate 66 is connected to the rear side of the front conveyor frame 2. The protective plate 66 is connected to the mounting plate 61, and the mounting plate 61 and the protective plate 66 cover the gear set 64.

[0035] The steel belt passes between the rollers 3 of the two conveyor frames 2, maintaining basic transport function. When the steel belt passes through the two offset sensors 7, the control panel 71 collects detection data, judges the values ​​detected by the front and rear sensors, calculates the offset, and presets the adjustment and correction amounts. When the calculated offset is greater than the fine-tuning threshold but less than the correction threshold, only the second motor 55 is started for fine-tuning. When the offset is greater than or equal to the correction threshold, the folding mechanism 4 and the correction mechanism 5 are started for correction. The steel belt passes between the front cleaning rollers 62. The cleaning strips 65 on the cleaning rollers 62 clean the surface of the steel belt, and the fourth motor 63 drives the two cleaning rollers 62 to rotate through the gear set 64. The protective plate 66 can prevent the steel belt from contacting the gear set 64, protecting the steel belt. The cleaned steel belt ensures the friction between it and the pressure roller 54, thereby ensuring the correction effect of the correction mechanism 5 on the steel belt.

[0036] When making fine adjustments, the control panel 71 only activates different second motors 55. The second motor 55 drives the lead screw 52 to rotate, thereby driving the sliding frame 53 to move left and right. The sliding frame 53 drives the pressure roller 54 to move laterally. By using the friction between the pressure roller 54 and the steel strip, the steel strip moves laterally, thereby completing the fine adjustment.

[0037] When correction is needed, the third motor 56 is sequentially numbered A, B, C, and D from front to back. The control panel 71 records the corresponding numbers. The steel belt stops conveying, and C, B, and A are activated in sequence. When only C is activated, the portion of the steel belt between C and D will be conveyed backward. Since D is not activated, this portion of the steel belt will bend on the sliding frame 53 between C and D. This process continues, ensuring that a certain amount of steel belt allowance is maintained between each pair of adjacent sliding frames 53. Then, the first motor 43 is activated. Through the cooperation of the transmission wheel 45 and rack 44, and the transmission action of the connecting rod 46, the first motor 43 brings all the sliding seats 42 closer together, thereby causing the sliding frames 53 to move closer as well. Subsequently, the second motor 55 and the third motor 56 are activated, and the pressure... While the tension roller 54 moves the steel belt laterally, it also conveys the steel belt backward, distributing the correction amount evenly among different sliding frames 53. This reduces the distance of a single steel belt offset and the lateral force on the steel belt. At the same time, the design of the rubber roller groove 541 allows the tension roller 54 to adaptively form a certain elastic contact with the steel belt when in contact, thereby reducing the stress on the steel belt when it is under excessive force, further preventing cracks and breaks in the steel belt. During the correction process, the steel belt gradually flattens, and the offset sensor 7 remains in the detection state. After the correction is completed, all third motors 56 are turned off, and the first motor 43 is started to reset all sliding seats 42. The tension roller 54 rotates freely with the conveying of the steel belt. The second motor 55 is continuously controlled by the control panel 71 for fine-tuning.

[0038] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A strip steel deviation rectifying structure of a cold rolling production line, comprising a base (1), a conveying frame (2) and a passing roller (3), the base (1) is provided with the conveying frame (2) at both ends, the conveying frame (2) is provided with the passing roller (3) which is rotatably connected, characterized in that, It also includes folding mechanism (4), deviation correction mechanism (5) and cleaning mechanism (6), the middle of base (1) is provided with folding mechanism (4), folding mechanism (4) is provided with deviation correction mechanism (5) for transverse deflection steel belt, folding mechanism (4) is used for adjusting the interval of deviation correction mechanism (5), front end conveying frame (2) is provided with cleaning mechanism (6) for cleaning steel belt; Folding mechanism (4) includes placing plate (41), sliding seat (42), first motor (43), rack (44), transmission wheel (45) and connecting rod (46), two placing plates (41) are connected to the left and right ends of the top of base (1) respectively, a plurality of sliding seats (42) are slidably connected in the two placing plates (41), a connecting rod (46) is rotatably connected in the middle of each sliding seat (42), and the adjacent connecting rods (46) on the same side are rotatably connected, the first motor (43) is installed on the most front end sliding seat (42), the rack (44) is arranged on the top surface of the placing plate (41), the output shaft of the first motor (43) is connected with the transmission wheel (45), and the transmission wheel (45) is engaged with the rack (44). Deviation correction mechanism (5) includes mounting frame (51), lead screw (52), sliding frame (53), compression roller (54), second motor (55) and third motor (56), the mounting frames (51) are connected to the left and right end sliding seats (42) respectively, and the mounting frames (51) are perpendicular to the placing plates (41), the sliding frame (53) is slidably connected in the mounting frame (51), the lead screw (52) is rotatably connected in the mounting frame (51), the lead screw (52) is threadedly connected with the sliding frame (53), the second motor (55) is installed on the end of the mounting frame (51), the output shaft of the second motor (55) is connected with the lead screw (52), the two compression rollers (54) rotatably connected on the sliding frame (53) contact each other, and the third motor (56) is installed on each mounting frame (51), and the third motor (56) is fixedly connected with one of the compression rollers (54) on the same mounting frame (51).

2. The strip correction structure of a cold rolling line according to claim 1, wherein Cleaning mechanism (6) includes mounting plate (61), cleaning roller (62), fourth motor (63) and gear set (64), the left and right ends of the rear side of front end conveying frame (2) are connected with mounting plate (61), two cleaning rollers (62) are rotatably connected between the two mounting plates (61), the gear set (64) is connected at the ends of the two cleaning rollers (62), the fourth motor (63) is installed on the mounting plate (61), and the fourth motor (63) is fixedly connected with the ends of the cleaning rollers (62).

3. The strip deviation correcting structure of a cold rolling line according to claim 2, wherein It also includes offset sensor (7) and control panel (71), offset sensor (7) is installed on the front and rear conveying frames (2), and control panel (71) is installed on the front and rear conveying frames (2), and control panel (71) is wiredly connected with offset sensor (7) and all motors.

4. The strip correction structure of a cold rolling line according to claim 3, wherein It also includes cleaning strip (65), and a plurality of cleaning strips (65) are connected on the cleaning roller (62).

5. The strip correction structure of a cold rolling line according to claim 4, wherein The compression roller (54) is provided with an annular rubber roller groove (541).

6. The strip correction structure of a cold rolling line according to claim 5, wherein Further comprising a protective plate (66), the front end conveying frame (2) is connected with the protective plate (66) at the rear side, the protective plate (66) is connected with the mounting plate (61), and the mounting plate (61) and the protective plate (66) cover the gear set (64).

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