A device for tracking welds in cold rolled strip steel

Abstract

The application discloses a device for tracking cold-rolled strip steel welds, and relates to the field of cold-rolled strip steel weld identification. The detection device in the application effectively improves the stability and reliability of the cold-rolled strip steel weld detection process through the cooperative matching of the multi-stage mechanical linkage structure. The rigid guide structure formed by the support, the guide seat and the guide block accurately limits the forward and backward movement of the visual sensing device body, so that the visual sensing device body always maintains a stable posture during the reciprocating movement, avoids deviation and shaking, and structurally guarantees the accuracy of the detection position. The cylinder drives the push rod to drive the periodic reciprocating of the driving part, so that the rotating roller and the driving roller realize intermittent driving of the strip steel, a short-term relative stationary state is formed in the detection area, and the clear capture and continuous tracking of the weld position are facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cold-rolled strip steel weld seam identification, and particularly relates to a device for tracking cold-rolled strip steel weld seam. BACKGROUND

[0002] A cold continuous rolling mill strip steel tracking processing method in Chinese patent publication No. CN105251776B includes strip steel tracking area division, weld seam tracking, set value request, wedge rolling control, and shearing position calculation. The divided nine strip steel tracking areas are set in position. After the weld seam enters the tracking area, the weld seam running distance is calculated, the tracking area speed is selected, and the weld seam position is corrected. The effectiveness of the weld seam detection signal is judged. The set value is requested and confirmed before the weld seam enters the rolling mill. The rolling set value is transitioned to the new strip steel set value when the wedge rolling length reaches the set length. Then, the shearing position is determined according to the strip steel width before and after the weld seam. The present application can accurately track the actual position of the strip steel on the cold continuous rolling mill production line, effectively avoid strip steel set value data errors, rolling strip breakage, shearing position errors, and other faults caused by strip steel tracking errors, reduce the machine set downtime, and improve the machine set operation rate and enterprise economic benefits.

[0003] Part of the detection device adopts fixed installation or simple sliding structure, and lacks reliable guide and limiting mechanism. When the strip steel runs at high speed or is affected by tension fluctuation, the detection head is easy to shake or deviate, resulting in unstable weld seam detection position and affecting detection accuracy. Secondly, the existing detection device mostly relies on continuous strip steel conveying mode for detection. The weld seam stays in the detection area for a short time. The detection device is difficult to obtain stable and complete weld seam information, and is easy to miss detection or repeat detection. SUMMARY

[0004] Therefore, in order to solve the above problems, the present application provides a device for tracking cold-rolled strip steel weld seam.

[0005] In order to achieve the above purpose, the present application adopts the following technical scheme: a device for tracking cold-rolled strip steel weld seam, including a conveying belt, the conveying belt is used for conveying cold-rolled strip steel, a supporting belt is installed on the right side of the conveying belt, a detection device is arranged on the top of the supporting belt, a supporting rod is connected to the front and rear ends of the detection device, the inner side of the supporting rod is connected to the supporting roller at the lower end, a cleaning device is installed on the top right end of the conveying belt, a supporting plate connected to the cleaning device is installed at the front and rear positions of the top right end of the conveying belt, a driving motor is arranged on the lower end of the front end surface of the front end supporting plate, the output shaft of the driving motor is connected to the driving pulley, the driving pulley is connected to the driven pulley through the synchronous belt on the outer side, and the driven pulley is connected to the front end of the cleaning device in the middle, the cleaning device is used for identifying and cleaning impurities of the cold-rolled strip steel passing below, and the detection device is used for identifying and detecting the weld seam of the strip steel passing below.

[0006] Preferably, the cleaning device comprises two sets of swing mechanisms oppositely arranged and connected with the support plates at the outer sides, a support frame arranged at the top of the swing mechanisms, a recognition device main body arranged at the left end of the support frame, and a cleaning brush arranged at the inner side of the swing mechanisms.

[0007] Preferably, the swing mechanism comprises a support block fixedly arranged at the inner side of the support plate, a connecting shaft arranged at the middle part of the support block, a driven pulley connected with the middle part of the connecting shaft at the front end, a guide frame arranged at the top of the support block, a sliding block arranged at the middle part of the guide frame, a supporting rod arranged at the top of the sliding block and connected with the support frame at the upper end, a sliding column arranged at the middle part of the sliding block, a gear connected with the inner side of the sliding column, a follower contacting the outer side of the gear, and a guide follower plate arranged at the inner side of the follower, the inner side of the guide follower plate being fixed with the cleaning brush, and the connecting shaft penetrating through the support block and connecting the guide follower plate.

[0008] Preferably, a sliding groove is arranged at the middle part of the guide frame, and the sliding block is movably embedded in the middle part of the sliding groove.

[0009] Preferably, a protruding tooth is arranged at the outer side of the follower, and the follower is engaged with the outer side of the gear.

[0010] Preferably, a sliding groove is arranged at the inner side of the guide follower plate near the edge, and the sliding column is movably embedded in the inner side of the sliding groove.

[0011] Preferably, the detection device comprises a support base for supporting, a pneumatic cylinder arranged at the top of the support base, a push rod connected with the push-out rod at the back of the pneumatic cylinder, a pushing piece arranged at the top of the push rod at the back end, a guide seat penetrated by the back end of the push rod, a visual sensing device main body connected with the front end at the right side of the push rod, a guide block penetrated by the visual sensing device main body and used for guiding, a rotating roller connected with the support rod at the front end and contacted with the pushing piece at the right side, and a pushing roller arranged at the back of the rotating roller and contacted with the back end of the support rod.

[0012] Preferably, a Z-shaped guide groove is arranged at the outer side of the rotating roller, and the pushing piece is contacted with the inner side of the guide groove.

[0013] Preferably, the bottom of the support base, the guide seat and the guide block are contacted with the top of the supporting belt at both ends.

[0014] Preferably, a cavity is arranged at the inner side of the pushing piece, a spring is embedded in the inner side of the cavity, the other end of the spring is contacted with a pushing column, the other end of the pushing column is movably embedded in the inner side of the guide groove, a protruding block is fixed at the bottom of the pushing piece, and the protruding block is movably embedded in the inner side of the guide seat and connected with the push rod.

[0015] The present application has the following beneficial effects:

[0016] The detection device in this invention effectively improves the stability and reliability of the cold-rolled strip weld inspection process through the coordinated operation of a multi-stage mechanical linkage structure. The device employs a rigid guiding structure formed by a support, guide seat, and guide block to precisely limit the forward and backward movement of the main body of the visual sensing device, ensuring it maintains a stable posture during reciprocating motion and preventing deviation and swaying. This structurally guarantees the accuracy of the detection position. A cylinder-driven push rod drives a moving component in a periodic reciprocating motion, enabling the rotating roller and the moving roller to intermittently move the strip steel, creating a brief period of relative stillness in the detection area, which is beneficial for clear capture and continuous tracking of the weld position. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the cleaning device structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the swing mechanism structure of the present invention;

[0020] Figure 4 This is a schematic diagram of the detection device of the present invention;

[0021] Figure 5 This is a partial structural schematic diagram of the detection device of the present invention;

[0022] Figure 6 This is a schematic diagram of the toggle mechanism of the present invention.

[0023] The components include: conveyor belt-1, cold-rolled strip steel-2, cleaning device-3, conveyor belt-4, detection device-5, support rod-6, idler roller-7, support plate-8, drive motor-9, drive pulley-10, synchronous belt-11, driven pulley-12, swing mechanism-31, bracket-32, identification device body-33, cleaning brush-34, support block-311, connecting shaft-312, guide frame-313, sliding block-314, support rod-315, sliding column-316, gear-317, follower-318, guide follower plate-319, support-51, cylinder-52, push rod-53, actuating component-54, guide seat-55, vision sensing device body-56, guide block-57, rotating roller-58, actuating roller-59, spring-54a, actuating column-54b, and protrusion-54c. Detailed Implementation

[0024] To further explain the technical solution of the present invention, a detailed description is provided below through specific embodiments.

[0025] Please see Figure 1This invention provides a device for tracking the weld seam of cold-rolled strip steel, including a conveyor belt 1 for transporting cold-rolled strip steel 2, a support belt 4 on the right side of the conveyor belt 1, a cleaning device 3 above the conveyor belt 1 for cleaning the surface of the passing cold-rolled strip steel 2 to facilitate subsequent weld seam detection, a detection device 5 installed at the top left end of the support belt 4 for identifying and detecting the weld seam of the passing strip steel, a support rod 6 connected to the front and rear positions of the left end of the detection device 5 for support, a roller 7 installed at the lower inner side of the support rod 6 for guiding the passing strip steel, a support plate 8 corresponding to the front and rear positions of the top right end of the conveyor belt 1 for the cleaning device 3, a drive motor 9 installed at the lower front end of the front end of the front support plate 8, the output shaft of the back of the drive motor 9 connected to the driven pulley 12, the outer side of the driving pulley 10 rotating synchronously with the driven pulley 12 through a synchronous belt 11, the middle of the driven pulley 12 connected to the cleaning device 3, and the upper end of the rear support plate 8 connected to the back of the cleaning device 3.

[0026] Please see Figure 2 and Figure 3 The cleaning device 3 includes two sets of swing mechanisms 31 for transmission. The front swing mechanism 31 is connected to the drive pulley 10, and the rear swing mechanism 31 is connected to the rear support plate 8. The upper ends of the two sets of swing mechanisms 31 are connected to the bracket 32. The left side of the bracket 32 ​​is equipped with the identification device body 33. The identification device body 33 can detect the cold-rolled strip steel passing below and sense whether its surface needs to be cleaned. The inner side of the two sets of swing mechanisms 31 is connected to the cleaning brush 34, which is used to scrape and clean the surface of the strip steel below.

[0027] The swing mechanism 31 includes a support block 311 for support, with its outer side connected to the inner side of the support plate 8. A connecting shaft 312 is installed in the middle of the support block 311. The front end of the connecting shaft 312 passes through the support block 311 and the front support plate 8 and connects to the drive pulley 10. A guide frame 313 is vertically fixed to the top of the support block 311. A sliding groove is opened in the middle of the guide frame 313, and a sliding block 314 is movably embedded in the middle of the sliding groove. A support rod 315 is fixed to the upper outer side of the sliding block 314. The upper inner side of the support rod 315 is connected to the guide frame 313. A sliding column 316 is provided in the middle, and a gear 317 passes through the back of the sliding column 316. The outer side of the gear 317 is connected to the follower 318. The outer side of the follower 318 is provided with a tooth. The follower 318 meshes with the outer side of the gear 317. A guide follower plate 319 is fixed inside the follower 318. A sliding groove is opened inside the guide follower plate 319 near the edge. The sliding groove is movably embedded by the sliding column 316. A cleaning brush 34 is fixed inside the guide follower plate 319. The inner side of the connecting shaft 312 is connected to the guide follower plate 319.

[0028] Please see Figures 4-6The detection device 5 includes a support 51 for support, a cylinder 52 is installed on the top of the support 51, a push rod is pushed through the support 51 and connected to a push rod 53, a toggle 54 is installed at the rear end of the top of the push rod 53, the back of the push rod 53 is movably embedded into the guide seat 55, the front right side of the push rod 53 is connected to the rear end of the visual sensing device body 56 and passes through a guide block 57, the guide block 57 is used to stably guide the sliding of the visual sensing device body 56, the left side of the toggle 54 is connected to the rotating roller 58, the back of the rotating roller 58 is provided with a toggle roller 59, the front end of the rotating roller 58 is connected to the support rod 6, the rear end of the toggle roller 59 is connected to the rear support rod 6, the outer side of the rotating roller 58 is provided with a Z-shaped guide groove, the inner side of the guide groove is connected to the toggle 54; the bottom of the support 51, the guide seat 55 and the guide block 57 are all connected to the top two ends of the conveyor belt 4.

[0029] The actuating element 54 has a cavity inside, and a spring 54a is embedded inside the cavity. The other end of the spring 54a is connected to the shift post 54b, and the other end of the shift post 54b is movably embedded in the guide groove. A protrusion 54c is fixed at the bottom of the actuating element 54. The protrusion 54c is movably embedded in the guide seat 55 and then connected to the push rod 53.

[0030] Both the identification device body 33 and the visual sensing device body 56 continuously photograph the surface of the strip steel passing through their monitoring area through their own image acquisition units, and the internal processing module identifies the weld features in real time. The identified weld position, cleaning status or defect information is then output to the external control system in the form of electrical signals or data streams. After receiving the data, the external system records it immediately and controls the start and stop of the cleaning mechanism according to the cleaning judgment signal fed back by the identification device body. At the same time, it establishes a weld tracking record based on the weld images and status data continuously uploaded by the visual sensing device body, so that both device bodies can achieve autonomous identification and real-time linkage with the external system during operation.

[0031] The specific implementation process is as follows:

[0032] When weld inspection is required on the cold-rolled strip 2, it is conveyed by the conveyor belt 1 and sent to the area below the cleaning device 3. The main body 33 of the identification device inside the cleaning device 3 performs image recognition on the surface of the strip to detect whether the weld is contaminated with impurities that may affect accuracy. If so, the drive motor 9 is started. The drive motor 9 drives the drive pulley 10 to rotate. During the rotation of the drive pulley 10, the driven pulley 12 rotates through the synchronous belt 11. The connecting shaft 312 in the middle of the driven pulley 12 drives the guide follower plate 319 to rotate. During the rotation of the guide follower plate 319, The gear 317 can rotate, and the sliding column 316 in the middle of the gear 317 moves along with it during the rotation. It is guided by the sliding groove. Then, the sliding block 314 connected to the outside of the sliding column 316 can move up and down in the guide frame 313. During the movement, the upper support rod 315 moves up and down along with it. During the rotation of the guide follower plate 319, the cleaning brush 34 connected to the inner side scrapes and cleans the strip steel. The identification device body 33 connected to the left end of the bracket 32 ​​moves up and down along with it to perform real-time image sensing. The work stops after the weld seam is cleaned and the conveyor belt 1 continues to convey the strip steel.

[0033] When the strip steel is transferred to the idler roller 7, the top contacts the actuating roller 59. At this time, the cylinder 52 is activated. The cylinder 52 drives the push rod to reciprocate the push rod 53. Then the push rod 53 causes the actuating element 54 to reciprocate. During the movement, the actuating column 54b inside can actuate the guide groove, thereby causing the rotating roller 58 to be intermittently actuated. This causes the actuating roller 59 to start rotating, intermittently feeding the strip steel. During the overall transmission process, the main body 56 of the vision sensing device moves back and forth with the push rod 53, and in conjunction with the intermittently moving strip steel, it monitors and records the weld seams on its surface in real time.

[0034] The above description is merely a preferred embodiment of the present invention and is 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 device for tracking weld seams in cold-rolled strip steel, characterized in that: The system includes a conveyor belt for conveying cold-rolled strip steel. A support belt is installed on the right side of the conveyor belt, and a detection device is installed on the top of the support belt. Support rods are connected to the front and rear ends of the detection device, and the lower inner ends of the support rods are connected to idler rollers. A cleaning device is installed on the top right end of the conveyor belt, and support plates for connecting the cleaning device are installed at the front and rear positions of the top right end of the conveyor belt. A drive motor is installed on the lower end of the front face of the front support plate, and the output shaft on the back of the drive motor is connected to a drive pulley. A driven pulley is connected to the outer side of the drive pulley via a synchronous belt. The front end of the cleaning device is connected to the middle of the driven pulley. The cleaning device is used to identify and clean impurities in the cold-rolled strip steel passing below, and the detection device identifies and detects weld seams in the strip steel passing below. The detection device includes a support for support, a cylinder located on top of the support, a push rod connected to the push rod on the back of the cylinder, an actuating element installed at the rear end of the top of the push rod, a guide seat penetrated by the rear end of the push rod, a main body of a vision sensing device connected to the front right side of the push rod, a guide block penetrated by the main body of the vision sensing device and used for guidance, a rotating roller connected to the support rod at the front end and connected to the actuating element on the right side, and an actuating roller located on the back of the rotating roller. The back of the actuating roller is connected to the rear support rod. A Z-shaped guide groove is opened on the outer side of the rotating roller, and the inner side of the guide groove is connected to the actuating element. The bottom of the support, the guide seat, and the guide block are all connected to the top two ends of the conveyor belt. The actuating component has a cavity inside, and a spring is embedded inside the cavity. The other end of the spring is connected to the shift post, and the other end of the shift post is movably embedded in the guide groove. A protrusion is fixed at the bottom of the actuating component, and the protrusion is movably embedded in the guide seat and then connected to the push rod.

2. The device for tracking weld seams of cold-rolled strip steel according to claim 1, characterized in that: The cleaning device includes two sets of swing mechanisms arranged opposite each other and connected to support plates on the outside, a bracket on the top of the swing mechanism, an identification device body installed on the left end of the bracket, and a cleaning brush on the inside of the swing mechanism.

3. The device for tracking weld seams of cold-rolled strip steel according to claim 2, characterized in that: The swing mechanism includes a support block fixed to the inner side of the support plate, a connecting shaft in the middle of the support block, a guide frame at the top of the support block connected to the middle of the driven pulley, a sliding block in the middle of the guide frame, a support rod at the top of the sliding block and connected to the bracket at the upper end, a sliding column in the middle of the sliding block, a gear connected to the inner side of the sliding column, a follower that contacts the gear on the outer side, and a guide follower plate in the inner side of the follower. The inner side of the guide follower plate is fixed to the cleaning brush, and the connecting shaft passes through the support block and connects to the guide follower plate.

4. The device for tracking weld seams of cold-rolled strip steel according to claim 3, characterized in that: The guide frame has a groove in the middle, and a sliding block is movably embedded in the middle of the groove.

5. The device for tracking weld seams of cold-rolled strip steel according to claim 4, characterized in that: The follower has protruding teeth on its outer side, and the follower meshes with the outer side of the gear.

6. The device for tracking weld seams of cold-rolled strip steel according to claim 3, characterized in that: The guide follower plate has a sliding groove near its edge, and a sliding column is movably embedded inside the sliding groove.

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