Steel plate conveying centering system

Abstract

The invention relates to the technical field of steel plate conveying equipment, in particular to a steel plate conveying centering system which comprises a roller conveying line, a transverse blocking assembly, a longitudinal blocking assembly and a moving driving mechanism, the roller conveying line is used for driving a steel plate to be conveyed in the longitudinal direction, and the longitudinal blocking assembly is arranged at the longitudinal tail end of the roller conveying line; the transverse blocking assembly is arranged on one side of the roller conveying line, the movement driving mechanism is transversely and movably arranged on the other side of the roller conveying line, the distance between the initial position of the movement driving mechanism and the transverse blocking assembly is known, and a transverse distance measuring unit is arranged on the movement driving mechanism; a rail is longitudinally arranged on the outer side of the roller conveying line, a moving trolley is longitudinally and movably arranged on the rail, a laser distance measuring unit and a trolley distance measuring unit are arranged on the moving trolley, and the distance between the initial position of the laser distance measuring unit and the longitudinal blocking assembly is known. And the length, width and thickness of the steel plate can be automatically measured on line.

Description

Technical Field

[0001] The present invention relates to the technical field of steel plate conveying equipment, and particularly to a steel plate conveying and centering system. Background Art

[0002] At present, the existing patent (publication number: CN220949947U) discloses a centering mechanism for a roller conveyor line, which includes a conveying frame. The conveying frame includes a border formed by enclosing and longitudinal beams lapped between the borders. A support is provided on the longitudinal beam, and a steel plate is placed on the support; mechanical stop edges are provided both horizontally and vertically on the border; a lifting device is provided on the longitudinal beam. The lifting device includes a lifting table surface that moves up and down. Universal balls are provided on the lifting table surface. The lifting table surface can lift the steel plate upward to disengage it from the support; centering driving devices for pushing the steel plate to move are respectively provided horizontally and vertically on the conveying frame.

[0003] When the above-mentioned centering mechanism for the roller conveyor line is in use, the lifting device is set to lift the steel plate during centering adjustment. The steel plate can move flexibly in the universal balls. Then, in cooperation with the centering driving device, it can efficiently complete the close positioning with the mechanical stop edge, improving the centering efficiency and centering accuracy of the steel plate, increasing the centering ability, and improving the allowable mass of the steel plate that can be centered.

[0004] In summary, although the above-mentioned existing centering mechanism for the roller conveyor line can achieve the centering of the steel plate, it cannot automatically measure the length, width, and thickness of the steel plate online, resulting in the inability to construct a 3D central coordinate system of the steel plate. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, one of the purposes of the present invention is to provide a steel plate conveying and centering system, which aims to solve the technical problem that the existing centering mechanism for the roller conveyor line cannot automatically measure the length, width, and thickness of the steel plate online, resulting in the inability to construct a 3D central coordinate system of the steel plate.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A steel plate conveying and centering system, comprising a roller conveying line, a longitudinal blocking assembly and an aligning mechanism. The roller conveying line is used to drive the steel plate to convey longitudinally. The longitudinal blocking assembly is arranged at the longitudinal end of the roller conveying line and is used to longitudinally block the steel plate. The aligning mechanism includes a cross beam, a transverse blocking assembly and a moving driving mechanism. The cross beam is horizontally arranged below the roller conveying line. The transverse blocking assembly is arranged at one end of the cross beam. The transverse blocking assembly is located on one side of the roller conveying line and is used to transversely block the steel plate. The moving driving mechanism is arranged at the other end of the cross beam and is used to transversely push the steel plate to abut against the transverse blocking assembly. The transverse distance between the initial position of the moving driving mechanism and the transverse blocking assembly is a known distance. A transverse distance measuring unit is arranged on the moving driving mechanism and is used to detect the transverse moving distance of the moving driving mechanism. A track is longitudinally arranged outside the roller conveying line. A target object is provided at the starting point of the track. A moving trolley is longitudinally movably arranged on the track. A laser distance measuring unit and a trolley distance measuring unit are arranged on the moving trolley. The laser distance measuring unit is used to find the transverse edge of the steel plate and detect the thickness of the steel plate. The longitudinal distance between the initial position of the laser distance measuring unit and the longitudinal blocking assembly is a known distance. The trolley distance measuring unit is based on the target object as a reference and is used to detect the distance that the moving trolley moves along the track.

[0008] Advantages of the present invention:

[0009] When the steel plate conveying and centering system of the present invention is in use, the roller conveying line drives the steel plate to convey longitudinally along the roller conveying line. When the steel plate abuts against the longitudinal blocking wheel of the longitudinal blocking assembly, the moving driving mechanism moves transversely along the roller conveying line, so that the pushing wheel pushes the steel plate to abut against the transverse blocking wheel of the transverse blocking assembly, and thus the purpose of centering the steel plate can be achieved. In addition, the transverse distance between the initial position of the moving driving mechanism (referring to the position where the moving driving mechanism is located before transverse movement) and the transverse blocking wheel of the transverse blocking assembly is set as X1. When the moving driving mechanism transversely pushes the steel plate to abut against the transverse blocking assembly, the distance that the pushing wheel moves transversely along with the moving driving mechanism is set as X2. Since the value of X1 is known, by detecting the value of X2 through the transverse distance measuring unit, the width of the steel plate can be known as △X = X1 - X2.

[0010] The edges at both ends of the steel plate are respectively set as the fixed-end edge and the free-end edge, and the fixed-end edge of the steel plate abuts against the longitudinal blocking mechanism; when the mobile trolley is at its initial position on the track (the position where the mobile trolley is located before it moves along the track), the longitudinal distance between the laser emitted vertically downward by the laser ranging unit and the longitudinal blocking assembly is set as Y1; based on the target object on the track as a reference, when the laser ranging unit moves with the mobile trolley to find and detect the free-end edge of the steel plate, the distance that the mobile trolley moves is set as Y2. Since the laser ranging unit is fixed on the mobile trolley, the distance that the mobile trolley moves along the track is the moving distance of the laser ranging unit. Since the value of Y2 can be measured by the trolley ranging unit and the value of Y1 is known, the length of the steel plate is △Y = Y1 - Y2.

[0011] Since the upper surfaces of all the rollers on the roller conveyor line are flush, the laser ranging unit takes the upper surface of the roller as the reference plane. When the laser ranging unit is at its initial position (the position where the laser ranging unit is located before the mobile trolley moves along the track), the vertical height between the laser ranging unit and the reference plane is Z1; the vertical height between the laser ranging unit and the upper surface of the steel plate is Z2. Since both Z1 and Z2 can be measured by the laser ranging unit, the thickness of the steel plate is △Z = Z1 - Z2.

[0012] In summary, it can be seen that the steel plate conveying and centering system of the present invention can not only achieve the centering of the steel plate, but also automatically measure the length, width and thickness of the steel plate online, so as to construct a 3D central coordinate system of the steel plate, laying a foundation for the subsequent intelligent lifting or grasping of the steel plate.

[0013] Further, the roller conveyor line includes a conveying frame, the conveying frame includes two longitudinal beams arranged horizontally at intervals, a support frame is provided at the bottom of each longitudinal beam, a plurality of rollers are rotatably arranged between the two longitudinal beams, the plurality of rollers are arranged at intervals longitudinally, a driving transmission unit is provided on one of the longitudinal beams, and the driving transmission unit is drivingly connected to each of the rollers for driving each of the rollers to convey the steel plate longitudinally.

[0014] Beneficial effect: The friction between the steel plate and the roller is rolling friction, and the friction coefficient is small.

[0015] Further, the longitudinal blocking assembly includes a cross bar, a mounting seat and a longitudinal blocking wheel. The cross bar is horizontally arranged at the longitudinal end of the roller conveyor line, the mounting seat is arranged on the cross bar, the longitudinal blocking wheel is rotatably arranged on the mounting seat, the rotation axis of the longitudinal blocking wheel is vertically arranged, and the longitudinal blocking wheel can abut against the steel plate.

[0016] Beneficial effect: The longitudinal blocking wheel can reduce the friction force between it and the steel plate.

[0017] Further, a longitudinal in-place detection element is provided on the cross bar, and the longitudinal in-place detection element is used to detect whether the steel plate abuts against the longitudinal blocking wheel.

[0018] Beneficial effect: Automatically determine whether the steel plate abuts against the longitudinal blocking wheel.

[0019] Further, the lateral blocking assembly includes a fixed seat and a lateral blocking wheel. The fixed seat is fixed on the cross beam, the lateral blocking wheel is rotatably arranged on the fixed seat, and the rotation axis of the lateral blocking wheel is vertically arranged.

[0020] Beneficial effect: The lateral blocking wheel can reduce the frictional force between it and the steel plate.

[0021] Further, the moving drive mechanism includes a moving seat, a pushing wheel and a driving motor; the cross beam is fixed between the two longitudinal beams, the cross beam is located below the roller, a guide rail and a rack are transversely arranged on the cross beam, the rack is located below the guide rail, the moving seat is transversely slidably arranged on the guide rail, a support is fixed on the moving seat, the pushing wheel is rotatably arranged on the support, and the rotation line of the pushing wheel is vertically arranged. The driving motor is fixed on the moving seat, the driving motor is drivingly connected with a gear, and the gear meshes with the rack for transmission. The driving motor drives the moving seat to drive the pushing wheel to push the steel plate to abut against the lateral blocking assembly.

[0022] Beneficial effect: Improve the lateral movement accuracy of the moving drive mechanism.

[0023] Further, a first side baffle and a second side baffle are respectively longitudinally arranged on the two longitudinal beams, and the first side baffle and the second side baffle are used to guide the steel plate to be conveyed longitudinally.

[0024] Beneficial effect: Play a role in guiding the steel plate to be conveyed longitudinally along the conveying line of the roller.

[0025] Further, a bracket is also arranged between the two longitudinal beams, and the surface of the bracket for supporting the steel plate is flush with the surface of the roller.

[0026] Beneficial effect: Play a role in supporting the steel plate, disperse the stress of the steel plate acting on the roller, and avoid deformation or scratching caused by excessive local stress of the steel plate.

[0027] Further, a lateral in-place detection element is also arranged on the longitudinal beam, which is used to detect whether the steel plate abuts against the lateral blocking wheel.

[0028] Beneficial effect: Can automatically determine whether the steel plate abuts against the lateral blocking wheel.

[0029] Further, an adjusting mechanism is arranged on the moving trolley, which is used to adjust the rolling friction between the moving trolley and the track.

[0030] Beneficial effect: It can adjust the stability of the moving trolley moving along the track. Brief Description of the Drawings

[0031] Figure 1 It is a schematic three-dimensional structure diagram of the steel plate conveying and centering system of the present invention;

[0032] Figure 2 It is a top view of the steel plate conveying and centering system of the present invention;

[0033] Figure 3 It is a schematic structure diagram of the connection between the track and the moving trolley according to an embodiment of the present invention;

[0034] Figure 4 It is a schematic structure diagram of the moving trolley according to an embodiment of the present invention;

[0035] Figure 5 It is another perspective view of the moving trolley according to an embodiment of the present invention;

[0036] Figure 6 It is a side view of the moving trolley according to an embodiment of the present invention;

[0037] Figure 7 It is a bottom view of the moving trolley according to an embodiment of the present invention;

[0038] Figure 8 It is a schematic structure diagram of the alignment mechanism according to an embodiment of the present invention;

[0039] Figure 9 It is a front view of the alignment mechanism according to an embodiment of the present invention;

[0040] Figure 10 It is a schematic diagram of the principle of measuring the length and width of the steel plate according to an embodiment of the present invention;

[0041] Figure 11 It is a schematic diagram of the principle of measuring the moving distance of the moving trolley according to an embodiment of the present invention;

[0042] Figure 12 It is a schematic diagram of the principle of measuring the thickness of the steel plate according to an embodiment of the present invention;

[0043] Figure 13 It is a schematic structure diagram of the longitudinal blocking component according to the second embodiment of the present invention.

[0044] Reference numerals in each drawing:

[0045] 1. Roller conveyor line; 10. Longitudinal beam; 101. First side baffle; 102. Second side baffle; 103. Support frame; 11. Power motor; 12. Chain drive mechanism; 13. Roller; 14. Bracket; 2. Longitudinal blocking assembly; 20. Cross bar; 201. Longitudinal in-place detection element; 21. Mounting seat; 22. Longitudinal blocking wheel; 3. Alignment mechanism; 30. Cross beam; 301. Guide rail; 302. Rack; 31. Transverse blocking assembly; 310. Fixed seat; 311. Transverse blocking wheel; 32. Moving drive mechanism; 320. Moving seat; 321. Support; 322. Pushing wheel; 323. Drive motor; 3230. Gear; 34. Transverse in-place detection element; 4. Track; 40. Target object; 5. Moving trolley; 50. Moving frame; 51. Power unit; 52. Upper rolling wheel; 53. Lower rolling wheel; 54. Left rolling wheel; 55. Right rolling wheel; 56. Connecting plate; 560. Kidney-shaped groove; 57. Connecting shaft; 58. Laser ranging unit; 59. Trolley ranging unit; 6. Adjusting assembly; 60. Adjusting spring; 61. Adjusting rod; 62. Adjusting nut; 63. Adjusting washer; 7. Steel plate. Detailed implementation mode

[0046] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0047] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "width", "upper", "lower", "front", "rear", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "setting" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. It can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include that the first and second features are not in direct contact but are in contact through other features therebetween.

[0049] Embodiment 1

[0050] Please refer to Figure 1 - Figure 12, the present invention provides a steel plate conveying and centering system, including a roller conveying line 1, a longitudinal blocking assembly 2, an alignment mechanism 3, a track 4, and a moving trolley 5.

[0051] In this embodiment, referring to Figure 1 and Figure 2 , the roller conveying line 1 is used to drive the steel plate 7 to be conveyed longitudinally. Specifically, the roller conveying line 1 includes a conveying frame, a driving transmission unit, and a plurality of rollers 13. The conveying frame includes two longitudinal beams 10 arranged at a lateral interval. A support frame 103 is provided at the bottom of each longitudinal beam 10, and the support frame 103 is used to support the longitudinal beam 10. A plurality of the rollers 13 are rotatably arranged between the two longitudinal beams 10, and the plurality of rollers 13 are arranged at longitudinal intervals. Among them, the driving transmission unit is arranged on one of the longitudinal beams 10, and the driving transmission unit is drivingly connected to each of the rollers 13, and the driving transmission unit is used to drive each roller 13 to convey the steel plate 7 longitudinally. Since the rolling friction between the steel plate 7 and the rollers 13 is small, the conveying effect of the steel plate on the roller conveying line 1 can be improved.

[0052] In this embodiment, referring to Figure 1 and Figure 2 , the driving transmission unit includes a power motor 11 and a chain transmission mechanism 12. The output shaft of the power motor 11 is drivingly connected to the chain transmission mechanism 12, and the chain transmission mechanism 12 is drivingly connected to each roller 13. Therefore, by driving the chain transmission mechanism 12 to transmit by the power motor 11, each roller 13 can be driven to rotate synchronously.

[0053] In this embodiment, referring to Figure 1 , a first side baffle 101 and a second side baffle 102 are respectively longitudinally arranged on the two longitudinal beams 10, and the first side baffle 101 and the second side baffle 102 are used to guide the steel plate to be conveyed longitudinally. A bracket 14 is further arranged between the two longitudinal beams 10. The bracket 14 is fixed on the connecting rod located below the roller 13, and the connecting rod is fixed on the support frame 103. Of course, the surface of the bracket 14 for supporting the steel plate is flush with the surface of the roller 13, so that the bracket 14 can play a role in supporting the steel plate, dispersing the stress of the steel plate acting on the roller 13, and avoiding deformation or scratching caused by excessive local stress of the steel plate.

[0054] In addition, referring to Figure 1 - Figure 3, a track 4 is also longitudinally arranged on the outer side of the roller conveyor line 1. A target object 40 is provided at the starting point of the track 4. The target object 40 is a reflector. A moving trolley 5 is longitudinally movably arranged on the track 4. A laser ranging unit 58 and a trolley ranging unit 59 are arranged on the moving trolley 5. The laser ranging unit 58 is used to find the lateral edge of the steel plate and detect the thickness of the steel plate. Of course, the longitudinal distance between the initial position of the laser ranging unit 58 (referring to the position where the laser ranging unit 58 is located before the moving trolley moves along the track 4) and the longitudinal blocking assembly 2 is a known distance. The trolley ranging unit 59 uses the target object as a reference to detect the distance that the moving trolley moves along the track 4.

[0055] Both the laser ranging unit 58 and the trolley ranging unit 59 in this embodiment can select laser sensors. Since the working principle of the laser sensor belongs to the prior art, it will not be described here.

[0056] Here, it is described how to measure the distance that the moving trolley 5 longitudinally moves along the track 4. Since the moving trolley 5 uses the target object fixed on the track 4 as a reference, when the moving trolley 5 is in its initial position (the position where the moving trolley is located before it moves along the track 4), referring to Figure 11 , the distance between the moving trolley and the target object 40 is S0 (known). When the moving trolley moves along the track 4, the distance between the moving trolley and the target object is S1. Therefore, the distance that the moving trolley moves along the track 4 is △S = S1 - S0.

[0057] In this embodiment, referring to Figure 3 - Figure 7 , the moving trolley 5 includes a moving frame 50, a power unit 51, an upper rolling wheel 52, a lower rolling wheel 53, a left rolling wheel 54 and a right rolling wheel 55. Among them, the power unit 51 is fixed on the moving frame 50, and the power unit 51 is drivingly connected to the upper rolling wheel 52 to drive the upper rolling wheel 52 to rotate. Of course, the rolling surface of the upper rolling wheel 52 abuts against the upper surface of the track 4; the lower rolling wheel 53 is rotatably arranged on a connecting shaft 57. There are two connecting plates 56 below the moving frame 50. The lower rolling wheel 53 is located between the two connecting plates 56, and the lower rolling wheel 53 can rotate relative to the connecting plates 56.

[0058] In addition, referring to Figure 5 , waist-shaped slots 560 penetrating through the opposite sides of each connecting plate 56 are formed on each connecting plate 56. The waist-shaped slots 560 extend vertically. The two ends of the connecting shaft 57 respectively pass through the waist-shaped slots 560 of the two connecting plates 56, and the connecting shaft 57 can be vertically adjusted in the waist-shaped slots 560. Of course, referring to Figure 1 and Figure 3 - Figure 7, the rolling surface of the lower rolling wheel 53 abuts against the lower surface of the track 4; the rolling surfaces of the left rolling wheel 54 and the right rolling wheel 55 respectively abut against the transverse side surfaces of the track 4. Thus, by driving the upper rolling wheel 52 to rotate through the power unit 51 controlled by the control system, the entire mobile trolley can be driven to move along the track 4.

[0059] In this embodiment, referring to Figure 4 - Figure 7 , an adjusting mechanism is provided on the mobile trolley 5. The adjusting mechanism is used to adjust the rolling friction between the mobile trolley and the track 4, so that the stability of the mobile trolley moving along the track 4 can be adjusted. Specifically, the adjusting mechanism includes two groups of adjusting components 6, and the structures of the two groups of adjusting components 6 are the same. Referring to Figure 3 - Figure 7 , the two groups of adjusting components 6 are respectively connected to both ends of the connecting shaft 57, and each group of adjusting components 6 is located outside each connecting plate 56. Specifically, each group of adjusting components 6 includes an adjusting spring 60, an adjusting rod 61, an adjusting nut 62 and an adjusting washer 63. One end of the adjusting rod 61 passes through the connecting shaft 57 vertically and is locked on the connecting plate 56. The other end of the adjusting rod 61 is threadedly connected to the adjusting nut 62. An adjusting spring 60 is sleeved on the adjusting rod 61, and two adjusting washers 63 are also slidably sleeved on the adjusting rod 61. The adjusting spring 60 is located between the two adjusting washers 63, and the adjusting washer 63 is located below the connecting shaft 57. Thus, by manually adjusting the adjusting nut 62, the abutting degree between the lower rolling wheel 53 and the lower surface of the track 4 can be adjusted, so as to achieve the purpose of adjusting the rolling friction between the mobile trolley and the track 4.

[0060] In addition, the adjusting spring 60 can also endow the mobile trolley with a shock-absorbing function, having a buffering effect, and greatly improving the stability of the mobile trolley moving along the track 4.

[0061] In this embodiment, referring to Figure 1, the longitudinal blocking assembly 2 is arranged at the longitudinal end of the roller conveyor line 1, and the longitudinal blocking assembly 2 is used to longitudinally block the steel plate. The longitudinal blocking assembly 2 includes a cross bar 20, a mounting seat 21 and longitudinal blocking wheels 22. The cross bar 20 is horizontally arranged at the longitudinal end of the roller conveyor line 1. The mounting seat 21 is fixed on the cross bar 20. The longitudinal blocking wheels 22 are rotatably arranged on the mounting seat 21. The rotation axis of the longitudinal blocking wheels 22 is vertically arranged, and the longitudinal blocking wheels 22 can abut against the steel plate. In addition, a longitudinal in-place detection element 201 is fixed on the cross bar 20. The longitudinal in-place detection element 201 is a diffuse reflection sensor. The longitudinal in-place detection element 201 is controlled by the control system (not shown) of the steel plate conveying and centering system. The control system is an existing PLC control system. The longitudinal in-place detection element 201 is used to detect whether the steel plate abuts against the longitudinal blocking wheels 22. When the steel plate is conveyed on the roller conveyor line 1 to abut against the longitudinal blocking wheels 22 of the longitudinal blocking assembly 2, the longitudinal in-place detection element 201 detects that the steel plate is in place along the longitudinal direction. At this time, the driving transmission unit stops driving.

[0062] It should be noted that the longitudinal blocking wheels 22 can reduce the friction force between them and the steel plate.

[0063] In this embodiment, referring to Figure 1 , Figure 2 , Figure 8 and Figure 9 , multiple sets of alignment mechanisms 3 can be provided, and the multiple sets of alignment mechanisms 3 are arranged at intervals along the longitudinal direction. The distance between each set of alignment mechanisms 3 can be reasonably changed according to the actual working conditions. Among them, the structure of a set of alignment mechanisms 3 is specifically described: The alignment mechanism 3 includes a cross beam 30, a transverse blocking assembly 31 and a moving driving mechanism 32. The cross beam 30 is horizontally arranged below the roller conveyor line 1, and the cross beam 30 is located below the roller 13. The transverse blocking assembly 31 is fixed at one end of the cross beam 30, and the transverse blocking assembly 31 is located on one side of the roller conveyor line 1. The transverse blocking assembly 31 is used to transversely block the steel plate; The moving driving mechanism 32 is horizontally slidably arranged at the other end of the cross beam 30. The moving driving mechanism 32 is located on the other side of the roller conveyor line 1. The moving driving mechanism 32 is used to transversely push the steel plate to abut against the transverse blocking assembly 31. Of course, the horizontal distance between the initial position of the moving driving mechanism 32 (referring to the position where the moving driving mechanism 32 is located before it moves horizontally) and the transverse blocking assembly 31 is a known distance. A transverse distance measuring unit (not shown) is arranged on the moving driving mechanism 32, and the transverse distance measuring unit is used to detect the horizontal moving distance of the moving driving mechanism 32.

[0064] In this embodiment, referring to Figure 1 and Figure 2, the lateral blocking assembly 31 is disposed transversely opposite to the drive transmission unit. Since the drive transmission unit is disposed on one of the longitudinal beams 10, the lateral blocking assembly 31 is disposed on the other longitudinal beam 10, so as to avoid the drive transmission unit and the lateral blocking assembly 31 being concentrated on the same longitudinal beam 10.

[0065] In this embodiment, referring to Figure 8 , the lateral blocking assembly 31 includes a fixed seat 310 and a lateral blocking wheel 311. The fixed seat 310 is fixed on the longitudinal beam 10. Of course, the lateral blocking wheel 311 is rotatably disposed on the fixed seat 310, and the rotation axis of the lateral blocking wheel 311 is vertically disposed, so that the frictional force between the lateral blocking wheel 311 and the steel plate can be greatly reduced. Wherein, the lateral blocking wheel 311 and the first side baffle 101 are located on the same side of the roller conveyor line 1. Of course, the surface of the lateral blocking wheel 311 for abutting against the steel plate is flush with the surface of the first side baffle 101 for abutting against the steel plate.

[0066] In addition, a lateral in-place detection element 34 is fixed on the fixed seat 310 or the longitudinal beam 10 fixing the fixed seat 310. The lateral in-place detection element 34 can be a diffuse reflection sensor. Of course, the lateral in-place detection element 34 is also controlled by the control system (not shown) of the steel plate conveying centering system, and it is detected by the lateral in-place detection element 34 whether the steel plate abuts against the lateral blocking wheel 311. When the lateral in-place detection element 34 detects that the steel plate abuts against the lateral blocking wheel 311, the moving drive mechanism 32 stops moving.

[0067] It should be noted that the working principle of the diffuse reflection sensor is prior art and will not be described here.

[0068] In other embodiments, the lateral in-place detection element 34 can also be a vision sensor.

[0069] In this embodiment, referring to Figure 8 and Figure 9, the moving drive mechanism 32 includes a moving seat 320, a pushing wheel 322 and a drive motor 323. A guide rail 301 and a rack 302 are fixed on the cross beam 30. The rack 302 is located below the guide rail 301. The moving seat 320 is clamped on the guide rail 301 through a slider, and the moving seat 320 can slide along the guide rail 301. A support 321 is fixed on the moving seat 320. The pushing wheel 322 is rotatably arranged on the support 321, and the rotation line of the pushing wheel 322 is vertically arranged, so that the rotation line of the pushing wheel 322 is parallel to the rotation axis of the lateral blocking wheel 311. Of course, the drive motor 323 is fixed on the moving seat 320. The drive motor 323 is drivingly connected with a gear 3230, and the gear 3230 meshes with the rack 302 for transmission. In this way, by driving the moving seat 320 with the drive motor 323, the pushing wheel 322 can be driven to push the steel plate against the lateral blocking wheel 311 of the lateral blocking assembly 31. Among them, the drive motor 323 is a servo motor with high positioning accuracy.

[0070] In this embodiment, the lateral distance measuring unit can be an ultrasonic sensor. The ultrasonic sensor can be fixed on the moving seat 320. By emitting ultrasonic waves and receiving reflected waves, the ultrasonic sensor calculates the distance change from the target reference object (the target reference object is one of the longitudinal beams 10 mentioned above), and then the lateral moving distance of the moving seat 320 can be deduced. The distance that the moving seat 320 moves is the distance that the entire alignment mechanism 3 moves. Since the ranging principle of the ultrasonic sensor belongs to the prior art, it will not be described here.

[0071] In other embodiments, the lateral distance measuring unit can also be a vision ranging sensor, which is not limited here. The ranging principle of the vision ranging sensor is the prior art and will not be described here.

[0072] The working principle of the present invention:

[0073] When the steel plate conveying and centering system of the present invention is in use, the roller conveyor line 1 drives the steel plate to be conveyed longitudinally along the roller conveyor line 1. When the steel plate abuts against the longitudinal blocking wheel 22 of the longitudinal blocking assembly 2, the moving drive mechanism 32 moves laterally along the roller conveyor line 1, so that the pushing wheel 322 pushes the steel plate against the lateral blocking wheel 311 of the lateral blocking assembly 31, thus achieving the purpose of centering the steel plate. In addition, the lateral distance between the initial position of the moving drive mechanism 32 (referring to the position of the moving drive mechanism 32 before lateral movement) and the lateral blocking wheel 311 of the lateral blocking assembly 31 is set as X1. When the moving drive mechanism 32 laterally pushes the steel plate against the lateral blocking assembly 31, the distance that the pushing wheel 322 moves laterally with the moving drive mechanism 32 is set as X2. Since the value of X1 is known, by detecting the value of X2 through the lateral distance measuring unit, the width of the steel plate can be known as △X = X1 - X2 (asFigure 10 as shown

[0074] The edges at both ends of the steel plate are respectively set as the fixed - end edge and the free - end edge, and the fixed - end edge of the steel plate abuts against the longitudinal blocking mechanism; when the mobile trolley is at its initial position on the track 4, the longitudinal distance between the laser emitted vertically downward by the laser ranging unit 58 and the longitudinal blocking wheel 22 is set as Y1; based on the target object on the track 4 as a reference, when the laser ranging unit 58 moves with the mobile trolley to find and detect the free - end edge of the steel plate, the laser emitted vertically downward by the laser ranging unit 58 just aligns with the free - end edge of the steel plate. At this time, the longitudinal distance that the laser ranging unit 58 moves with the mobile trolley is set as Y2. Since the target object is used as a reference, the distance that the laser ranging unit 58 moves is the same as the distance that the mobile trolley moves, that is, △S = Y2. Since the value of Y2 can be measured by the trolley ranging unit 59 and the value of Y1 is known, the length of the steel plate is △Y = Y1 - Y2 (as Figure 10 shown

[0075] Because the upper surfaces of all the rollers 13 on the roller conveyor line 1 are flush, taking the upper surface of the roller 13 as the reference plane for the laser ranging unit 58, when the laser ranging unit 58 is at its initial position (the position where the laser ranging unit 58 is located before the mobile trolley moves along the track 4), the vertical height between the laser ranging unit 58 and the reference plane is Z1; the vertical height between the laser ranging unit 58 and the upper surface of the steel plate is Z2. Since Z1 and Z2 can be measured by the laser ranging unit 58, the thickness of the steel plate is △Z = Z1 - Z2 (as Figure 12 shown

[0076] In summary, it can be seen that the steel - plate conveying and centering system of the present invention can not only achieve the centering of the steel plate, but also automatically measure the length, width and thickness of the steel plate online, so as to construct a 3D central coordinate system of the steel plate, laying a foundation for the subsequent intelligent hoisting or grasping of the steel plate.

[0077] Embodiment 2

[0078] The difference between this embodiment and Embodiment 1 lies in the different structure of the longitudinal blocking assembly 2.

[0079] Referring to Figure 13 , the longitudinal blocking assembly includes a cross - bar 20 and a mounting seat 21. The cross - bar 20 is horizontally arranged at the longitudinal end of the roller conveyor line, the mounting seat 21 is fixed on the cross - bar 20, and the position on the mounting seat 21 for abutting against the steel plate is a plane.

[0080] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A steel plate conveying and centering system, comprising a roller conveying line, a longitudinal blocking assembly and an aligning mechanism. The roller conveying line is used to drive the steel plate to be conveyed longitudinally, and the longitudinal blocking assembly is arranged at the longitudinal end of the roller conveying line for longitudinally blocking the steel plate; characterized in that, The alignment mechanism includes a cross beam, a lateral blocking assembly, and a moving driving mechanism. The cross beam is horizontally arranged below the roller conveyor line. The lateral blocking assembly is arranged at one end of the cross beam and is located on one side of the roller conveyor line for laterally blocking the steel plate. The moving driving mechanism is arranged at the other end of the cross beam for laterally pushing the steel plate to abut against the lateral blocking assembly. The lateral distance between the initial position of the moving driving mechanism and the lateral blocking assembly is a known distance. A lateral distance measuring unit is arranged on the moving driving mechanism for detecting the lateral moving distance of the moving driving mechanism. A track is longitudinally arranged outside the roller conveyor line. A target object is provided at the starting point of the track. A moving trolley is longitudinally movably arranged on the track. A laser distance measuring unit and a trolley distance measuring unit are arranged on the moving trolley. The laser distance measuring unit is used to find the lateral edge of the steel plate and detect the thickness of the steel plate. The longitudinal distance between the initial position of the laser distance measuring unit and the longitudinal blocking assembly is a known distance. The trolley distance measuring unit uses the target object as a reference for detecting the distance that the moving trolley moves along the track.

2. The steel plate conveying and centering system according to claim 1, characterized in that, The roller conveyor line includes a conveying frame. The conveying frame includes two longitudinally arranged longitudinal beams spaced laterally. Support frames are arranged at the bottom of each longitudinal beam. A plurality of rollers are rotatably arranged between the two longitudinal beams. The plurality of rollers are arranged at intervals longitudinally. A driving transmission unit is arranged on one longitudinal beam. The driving transmission unit is drivingly connected to each roller for driving each roller to longitudinally convey the steel plate.

3. A steel plate conveying and centering system according to claim 1 or 2, characterized in that, The longitudinal blocking assembly includes a cross bar, a mounting seat, and a longitudinal blocking wheel. The cross bar is horizontally arranged at the longitudinal end of the roller conveyor line. The mounting seat is arranged on the cross bar. The longitudinal blocking wheel is rotatably arranged on the mounting seat. The rotation axis of the longitudinal blocking wheel is vertically arranged, and the longitudinal blocking wheel can abut against the steel plate.

4. The steel plate conveying and centering system according to claim 3, characterized in that, 5. The steel plate conveying and centering system according to claim 2, wherein, A longitudinal in-place detection element is arranged on the cross bar for detecting whether the steel plate abuts against the longitudinal blocking wheel.

6. The steel plate conveying and centering system according to claim 2, characterized in that, The lateral blocking assembly includes a fixed seat and a lateral blocking wheel. The fixed seat is fixed on the cross beam. The lateral blocking wheel is rotatably arranged on the fixed seat. The rotation axis of the lateral blocking wheel is vertically arranged.

7. The steel plate conveying and centering system according to claim 2, wherein, The moving driving mechanism includes a moving seat, a pushing wheel, and a driving motor. The cross beam is fixed between the two longitudinal beams and is located below the rollers. A guide rail and a rack are horizontally arranged on the cross beam. The rack is located below the guide rail. The moving seat is horizontally slidably arranged on the guide rail. A support is fixed on the moving seat. The pushing wheel is rotatably arranged on the support, and the rotation line of the pushing wheel is vertically arranged. The driving motor is fixed on the moving seat. The driving motor is drivingly connected to a gear. The gear meshes with the rack for transmission. The driving motor drives the moving seat to drive the pushing wheel to push the steel plate to abut against the lateral blocking assembly. First side baffles and second side baffles are longitudinally arranged on the two longitudinal beams respectively. The first side baffle and the second side baffle are used for guiding the steel plate to be conveyed longitudinally.

8. The steel plate conveying and centering system according to claim 2, wherein, A bracket is also arranged between the two longitudinal beams, and the surface of the bracket for supporting the steel plate is flush with the surface of the roller.

9. The centering system for steel plate conveying according to claim 5, characterized in that, A lateral in-place detection element is also arranged on the longitudinal beam for detecting whether the steel plate abuts against the lateral blocking wheel.

10. A steel plate conveying and centering system according to claim 1, characterized in that, An adjusting mechanism is arranged on the moving trolley for adjusting the rolling friction force between the moving trolley and the track.

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