Steel plate conveying centering system

Abstract

The utility model 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] This utility model relates to the technical field of steel plate conveying equipment, and in particular to a steel plate conveying centering system. Background Technology

[0002] Currently, an existing patent (publication number: CN220949947U) discloses a centering mechanism for a roller conveyor line, which includes a conveying frame, the conveying frame including a frame formed by enclosing and a longitudinal beam overlapping the frame, a support is provided on the longitudinal beam, and a steel plate is placed on the support; mechanical guards are provided in both the transverse and longitudinal directions of the frame; a lifting device is provided on the longitudinal beam, the lifting device including a lifting platform that can move up and down, a universal ball is provided on the lifting platform, and the lifting platform can lift the steel plate upward to remove it from the support; centering drive devices for pushing the steel plate to move are respectively provided in the transverse and longitudinal directions on the conveying frame.

[0003] When the above-mentioned roller conveyor centering mechanism is in use, the lifting device lifts the steel plate during centering adjustment. The steel plate can move flexibly in the universal ball. In conjunction with the centering drive device, it can efficiently complete the tight positioning with the mechanical guard, which improves the centering efficiency and accuracy of the steel plate, increases the centering capacity, and improves the allowable quality of the steel plate that can be centered.

[0004] In summary, although the existing roller conveyor alignment mechanism can achieve steel plate alignment, it cannot automatically measure the length, width and thickness of the steel plate online, which makes it impossible to construct a 3D center coordinate system for the steel plate. Utility Model Content

[0005] In view of the shortcomings of the existing technology, one of the objectives of this utility model is to provide a steel plate conveying centering system, which aims to solve the technical problem that the existing roller conveyor line centering mechanism cannot automatically measure the length, width and thickness of the steel plate online, thus making it impossible to construct a 3D center coordinate system of the steel plate.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A steel plate conveying and alignment system includes a roller conveyor line, a longitudinal blocking assembly, and an alignment mechanism. The roller conveyor line drives the steel plate to be conveyed longitudinally. The longitudinal blocking assembly is located at the longitudinal end of the roller conveyor line and is used to longitudinally block the steel plate. The alignment mechanism includes a crossbeam, a transverse blocking assembly, and a moving drive mechanism. The crossbeam is transversely positioned below the roller conveyor line. The transverse blocking assembly is located at one end of the crossbeam and is situated on one side of the roller conveyor line, used to transversely block the steel plate. The moving drive mechanism is located at the other end of the crossbeam and is used to transversely push the steel plate against the transverse blocking assembly. The initial position of the moving drive mechanism is aligned with the transverse blocking assembly. The lateral spacing between them is a known spacing. The moving drive mechanism is equipped with a lateral ranging unit for detecting the lateral movement distance of the moving drive mechanism. A track is longitudinally arranged on the outer side of the roller conveyor line. A target object is set at the starting point of the track. A moving trolley is longitudinally arranged on the track. The moving trolley is equipped with a laser ranging unit and a trolley ranging unit. The laser ranging unit is used to find the lateral edge of the steel plate and detect the thickness of the steel plate. The longitudinal spacing between the initial position of the laser ranging unit and the longitudinal blocking component is a known spacing. The trolley ranging unit is based on the target object as a reference and is used to detect the distance the moving trolley moves along the track.

[0008] The beneficial effects of this utility model are:

[0009] In use, the steel plate conveying and centering system of this utility model drives the steel plate to be conveyed longitudinally along the roller conveyor line. When the steel plate abuts against the longitudinal blocking wheel of the longitudinal blocking assembly, the moving drive mechanism moves laterally along the roller conveyor line, causing the push wheel to push the steel plate against the transverse blocking wheel of the transverse blocking assembly, thus achieving the centering purpose of the steel plate. Furthermore, the lateral distance between the initial position of the moving drive mechanism (the position of the moving drive mechanism before its lateral movement) and the transverse blocking wheel of the transverse blocking assembly is set as X1. When the moving drive mechanism laterally pushes the steel plate against the transverse blocking assembly, the distance the push wheel moves laterally with the moving drive mechanism is set as X2. Since the value of X1 is known, the value of X2 can be detected by the lateral distance measuring unit, thus determining the width of the steel plate as ΔX = X1 - X2.

[0010] The edges at both ends of the steel plate are designated as the fixed end edge and the free end edge, respectively. The fixed end edge of the steel plate abuts against the longitudinal blocking mechanism. When the moving trolley is initially positioned on the track (the position of the moving trolley before it moves along the track), the longitudinal distance between the laser emitted vertically downward by the laser ranging unit and the longitudinal blocking component is set as Y1. Based on the target object on the track as the reference, when the laser ranging unit moves with the moving trolley to find and detect the free end edge of the steel plate, the distance the moving trolley moves is set as Y2. Since the laser ranging unit is fixed on the moving trolley, the distance the moving trolley moves along the track is the distance the laser ranging unit moves. 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 ΔY = Y1 - Y2.

[0011] Since the upper surfaces of all rollers on the roller conveyor line are flush, the laser ranging unit uses the upper surface of the roller as the reference plane. When the laser ranging unit is in its initial position (the position of the laser ranging unit before the moving 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 ΔZ = Z1 - Z2.

[0012] In summary, the steel plate conveying and centering system of this utility model can not only center the steel plate, but also automatically measure the length, width and thickness of the steel plate online, thereby constructing a 3D center coordinate system of the steel plate, laying the foundation for subsequent intelligent hoisting or grabbing of the steel plate.

[0013] Furthermore, the roller conveyor line includes a conveying frame, which includes two longitudinal beams arranged laterally at intervals. Each longitudinal beam has a support frame at its bottom. Multiple rollers are rotatably arranged between the two longitudinal beams and are arranged at intervals along the longitudinal direction. A drive transmission unit is provided on one of the longitudinal beams and is driven and connected to each of the rollers to drive each roller to convey steel plates along the longitudinal direction.

[0014] Beneficial effect: The friction between the steel plate and the roller is rolling friction, with a low coefficient of friction.

[0015] Furthermore, the longitudinal blocking assembly includes a crossbar, a mounting base, and a longitudinal blocking wheel. The crossbar is laterally disposed at the longitudinal end of the roller conveyor line, the mounting base is disposed on the crossbar, and the longitudinal blocking wheel is rotatably disposed on the mounting base. The rotation axis of the longitudinal blocking wheel is vertically disposed, and the longitudinal blocking wheel can abut against the steel plate.

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

[0017] Furthermore, a longitudinal positioning detection element is provided on the crossbar, which is used to detect whether the steel plate abuts against the longitudinal blocking wheel.

[0018] Beneficial effect: Automatically determines whether the steel plate is in contact with the longitudinal blocking wheel.

[0019] Furthermore, the lateral blocking assembly includes a fixed base and a lateral blocking wheel. The fixed base is fixed to the crossbeam, and the lateral blocking wheel is rotatably mounted on the fixed base. The rotation axis of the lateral blocking wheel is vertically oriented.

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

[0021] Furthermore, the moving drive mechanism includes a moving seat, a push wheel, and a drive motor; the crossbeam is fixed between the two longitudinal beams, the crossbeam is located below the roller, a guide rail and a rack are arranged laterally on the crossbeam, the rack is located below the guide rail, the moving seat is laterally slidably arranged on the guide rail, a support is fixed on the moving seat, the push wheel is rotatably arranged on the support, and the rotation line of the push wheel is vertically arranged, the drive motor is fixed on the moving seat, the drive motor drives a gear connected to it, the gear meshes with the rack for transmission, and the drive motor drives the moving seat to drive the push wheel to push the steel plate against the transverse blocking assembly.

[0022] Beneficial effect: Improves the lateral movement accuracy of the mobile drive mechanism.

[0023] Furthermore, a first side baffle and a second side baffle are respectively arranged longitudinally 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: It serves to guide the steel plates to be transported longitudinally along the roller conveyor line.

[0025] Furthermore, a bracket is provided between the two longitudinal beams, and the surface of the bracket used to support the steel plate is flush with the surface of the roller.

[0026] Beneficial effects: It supports the steel plate, disperses the stress exerted by the steel plate on the roller, and prevents deformation or scratches caused by excessive local stress on the steel plate.

[0027] Furthermore, the longitudinal beam is also equipped with a lateral positioning detection element to detect whether the steel plate is in contact with the lateral blocking wheel.

[0028] Beneficial effect: It can automatically determine whether the steel plate is in contact with the transverse blocking wheel.

[0029] Furthermore, the mobile trolley is equipped with an adjustment mechanism for adjusting the rolling friction between the mobile trolley and the track.

[0030] Beneficial effect: It can adjust the stability of the moving trolley as it moves along the track. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural diagram of the steel plate conveying and centering system of this utility model;

[0032] Figure 2 This is a top view of the steel plate conveying and centering system of this utility model;

[0033] Figure 3 This is a schematic diagram of the structure connecting the track and the mobile trolley in an embodiment of this utility model;

[0034] Figure 4 This is a schematic diagram of the structure of the mobile vehicle involved in an embodiment of the present utility model;

[0035] Figure 5 This is another schematic diagram of the mobile vehicle involved in this utility model embodiment;

[0036] Figure 6 This is a side view of a mobile trolley according to an embodiment of the present utility model;

[0037] Figure 7 This is a bottom view of the mobile trolley according to an embodiment of the present utility model;

[0038] Figure 8 This is a schematic diagram of the alignment mechanism according to an embodiment of the present utility model;

[0039] Figure 9 This is a front view of the alignment mechanism according to an embodiment of the present utility model;

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

[0041] Figure 11 This is a schematic diagram illustrating the principle of measuring the moving distance of a mobile trolley according to an embodiment of the present utility model;

[0042] Figure 12 This is a schematic diagram illustrating the principle of measuring steel plate thickness in an embodiment of this utility model;

[0043] Figure 13 This is a structural schematic diagram of the longitudinal blocking component involved in Embodiment 2 of this utility model.

[0044] Numbering in each attached figure:

[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. Crossbar; 201. Longitudinal positioning detection element; 21. Mounting base; 22. Longitudinal blocking wheel; 3. Alignment mechanism; 30. Crossbeam; 301. Guide rail; 302. Rack; 31. Transverse blocking assembly; 310. Fixed base; 311. Transverse blocking wheel; 32. Moving drive mechanism; 320. Moving base; 321. 1. Support; 322. Push wheel; 323. Drive motor; 3230. Gear; 34. Lateral positioning 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. Waist-shaped groove; 57. Connecting shaft; 58. Laser ranging unit; 59. Trolley ranging unit; 6. Adjustment assembly; 60. Adjusting spring; 61. Adjusting rod; 62. Adjusting nut; 63. Adjusting washer; 7. Steel plate. Detailed Implementation

[0046] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0047] In the description of this utility model, it should be understood that the terms "width," "upper," "lower," "front," "rear," "top," and "bottom," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction relationship between two elements. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] In this invention, unless otherwise expressly specified and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or contact between the first and second features not being in direct contact but through another feature between them.

[0049] Example 1

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

[0051] In this embodiment, refer to Figure 1 and Figure 2 The roller conveyor line 1 is used to drive the steel plate 7 to be conveyed longitudinally. Specifically, the roller conveyor line 1 includes a conveying frame, a drive transmission unit, and multiple rollers 13. The conveying frame includes two longitudinal beams 10 arranged laterally at intervals. Each longitudinal beam 10 has a support frame 103 at its bottom, which supports the longitudinal beam 10. Multiple rollers 13 are rotatably arranged between the two longitudinal beams 10, and the multiple rollers 13 are arranged at intervals longitudinally. The drive transmission unit is mounted on one of the longitudinal beams 10 and is drivenly connected to each of the rollers 13. The drive transmission unit is used to drive each roller 13 to convey the steel plate 7 longitudinally. Since the friction between the steel plate 7 and the rollers 13 is rolling friction, the coefficient of friction is small, thus improving the conveying effect of the steel plate on the roller conveyor line 1.

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

[0053] In this embodiment, refer to Figure 1 Each of the two longitudinal beams 10 is longitudinally provided with a first side baffle 101 and a second side baffle 102, which guide the steel plate to be conveyed longitudinally. A bracket 14 is also provided between the two longitudinal beams 10, and the bracket 14 is fixed to a connecting rod located below the roller 13. The connecting rod is fixed to a support frame 103. The surface of the bracket 14 supporting the steel plate is flush with the surface of the roller 13, thus allowing the bracket 14 to support the steel plate, dispersing the stress exerted by the steel plate on the roller 13, and preventing deformation or scratches caused by excessive localized stress on the steel plate.

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

[0055] Both the laser ranging unit 58 and the vehicle ranging unit 59 in this embodiment can be laser sensors. Since the working principle of the laser sensor is existing technology, it will not be described here.

[0056] This section explains how to measure the distance the moving trolley 5 travels longitudinally along track 4. Since the moving trolley 5 uses the target object fixed on track 4 as a reference, at its initial position (the position of the moving trolley before it moves along track 4), the reference point is... Figure 11 The distance between the moving trolley and the target object 40 is S0 (known). After the moving trolley moves along the track 4, the distance between the moving trolley and the target object is S1. Therefore, the distance the moving trolley moves along the track 4 is △S=S1-S0.

[0057] In this embodiment, refer to Figure 3 - Figure 7 The mobile trolley 5 includes a mobile 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. The power unit 51 is fixed to the mobile frame 50 and drives the upper rolling wheel 52 to rotate. 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 mounted on a connecting shaft 57. Two connecting plates 56 are located below the mobile frame 50, and the lower rolling wheel 53 is positioned between these two connecting plates 56 and can rotate relative to them.

[0058] In addition, refer to Figure 5 Each connecting plate 56 has a waist-shaped groove 560 extending through its opposite sides. The waist-shaped groove 560 extends vertically, and both ends of the connecting shaft 57 pass through the waist-shaped grooves 560 of the two connecting plates 56 respectively. The connecting shaft 57 can be vertically adjusted within the waist-shaped grooves 560. Of course, referring to... Figure 1 and Figure 3 - Figure 7The 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 abut against the two lateral sides of the track 4 respectively. Thus, the upper rolling wheel 52 is driven to rotate by the power unit 51 controlled by the control system, which in turn drives the entire mobile trolley to move along the track 4.

[0059] In this embodiment, refer to Figure 4 - Figure 7 The moving trolley 5 is equipped with an adjustment mechanism to adjust the rolling friction between the trolley and the track 4, thereby adjusting the stability of the trolley's movement along the track 4. Specifically, the adjustment mechanism includes two sets of adjustment components 6, both of which have identical structures. (Refer to...) Figure 3 - Figure 7 Two sets of adjusting components 6 are respectively connected to both ends of the connecting shaft 57, and each set of adjusting components 6 is located outside the connecting plate 56. Specifically, each set of adjusting components 6 includes an adjusting spring 60, an adjusting rod 61, an adjusting nut 62, and adjusting washers 63. One end of the adjusting rod 61 passes vertically through the connecting shaft 57 and is locked onto the connecting plate 56. The other end of the adjusting rod 61 is threaded to the adjusting nut 62. The 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 washers 63 are located below the connecting shaft 57. In this way, by manually adjusting the adjusting nut 62, the degree of contact between the lower rolling wheel 53 and the lower surface of the track 4 can be adjusted, thereby achieving the purpose of adjusting the rolling friction between the moving trolley and the track 4.

[0060] In addition, adjusting the spring 60 can also enable the moving trolley to have a shock absorption function, which has a buffering effect and greatly improves the stability of the moving trolley moving along the track 4.

[0061] In this embodiment, refer to Figure 1The longitudinal blocking assembly 2 is located at the longitudinal end of the roller conveyor line 1 and is used to longitudinally block the steel plate. The longitudinal blocking assembly 2 includes a crossbar 20, a mounting base 21, and a longitudinal blocking wheel 22. The crossbar 20 is transversely positioned at the longitudinal end of the roller conveyor line 1, the mounting base 21 is fixed to the crossbar 20, and the longitudinal blocking wheel 22 is rotatably mounted on the mounting base 21. The rotation axis of the longitudinal blocking wheel 22 is vertically oriented, and the longitudinal blocking wheel 22 can abut against the steel plate. Furthermore, a longitudinal positioning detection element 201 is fixed on the crossbar 20. The longitudinal positioning detection element 201 is a diffuse reflection sensor and is controlled by the control system of the steel plate conveying centering system (not shown). The control system is an existing PLC control system. The longitudinal positioning detection element 201 is used to detect whether the steel plate abuts against the longitudinal blocking wheel 22. When the steel plate is conveyed on the roller conveyor line 1 to abut against the longitudinal blocking wheel 22 of the longitudinal blocking assembly 2, the longitudinal positioning detection element 201 detects that the steel plate has been conveyed longitudinally into position, at which point the drive transmission unit stops driving.

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

[0063] In this embodiment, refer to Figure 1 , Figure 2 , Figure 8 and Figure 9 Multiple alignment mechanisms 3 can be provided, and these multiple alignment mechanisms 3 are arranged at intervals along the longitudinal direction. The spacing between each set of alignment mechanisms 3 can be reasonably changed according to the actual working conditions. Specifically, the structure of one set of alignment mechanisms 3 is described as follows: The alignment mechanism 3 includes a crossbeam 30, a transverse blocking component 31, and a moving drive mechanism 32. The crossbeam 30 is transversely arranged below the roller conveyor line 1, and is located below the roller 13. The transverse blocking component 31 is fixed to one end of the crossbeam 30 and is located on one side of the roller conveyor line 1. The transverse blocking component 31 is used to transversely block the steel plate. The moving drive mechanism 32 is transversely slidably arranged at the other end of the crossbeam 30 and is located on the other side of the roller conveyor line 1. The moving drive mechanism 32 is used to transversely push the steel plate against the transverse blocking component 31. Of course, the lateral distance between the initial position of the moving drive mechanism 32 (the position of the moving drive mechanism 32 before it moves laterally) and the lateral blocking component 31 is a known distance. The moving drive mechanism 32 is provided with a lateral ranging unit (not shown), which is used to detect the lateral movement distance of the moving drive mechanism 32.

[0064] In this embodiment, refer to Figure 1 and Figure 2The lateral blocking component 31 is arranged laterally opposite to the drive transmission unit. Since the drive transmission unit is arranged on one of the longitudinal beams 10, the lateral blocking component 31 is arranged on another longitudinal beam 10. This avoids the drive transmission unit and the lateral blocking component 31 being concentrated on the same longitudinal beam 10.

[0065] In this embodiment, refer to Figure 8 The transverse blocking assembly 31 includes a fixed base 310 and a transverse blocking wheel 311. The fixed base 310 is fixed to the longitudinal beam 10. The transverse blocking wheel 311 is rotatably mounted on the fixed base 310, and its rotation axis is vertically oriented, which greatly reduces the friction between the transverse blocking wheel 311 and the steel plate. The transverse blocking wheel 311 and the first side baffle 101 are located on the same side of the roller conveyor line 1. The surface of the transverse blocking wheel 311 that abuts against the steel plate is flush with the surface of the first side baffle 101 that abuts against the steel plate.

[0066] Furthermore, a lateral positioning detection element 34 is fixed on the fixed base 310 or the longitudinal beam 10 that fixes the fixed base 310. The lateral positioning detection element 34 can be a diffuse reflection sensor. Of course, the lateral positioning detection element 34 is also controlled by the control system of the steel plate conveying and centering system (not shown). The lateral positioning detection element 34 detects whether the steel plate is abutting the lateral blocking wheel 311. When the lateral positioning detection element 34 detects that the steel plate is abutting 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 existing technology and will not be explained here.

[0068] In other embodiments, the lateral positioning detection element 34 may also be a vision sensor.

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

[0070] In this embodiment, the lateral ranging unit can be an ultrasonic sensor, which can be fixed on the movable base 320. The ultrasonic sensor emits ultrasonic waves and receives reflected waves, calculates the distance change with the target reference object (the aforementioned longitudinal beam 10), and thus calculates the lateral movement distance of the movable base 320. The distance moved by the movable base 320 is the same as the distance moved by the entire alignment mechanism 3. Since the ranging principle of the ultrasonic sensor is prior art, it will not be described here.

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

[0072] The working principle of this utility model:

[0073] In use, the steel plate conveying and centering system of this utility model 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 component 2, the moving drive mechanism 32 moves laterally along the roller conveyor line 1, causing the push wheel 322 to push the steel plate against the transverse blocking wheel 311 of the transverse blocking component 31, thus achieving the centering purpose of the steel plate. Furthermore, the lateral distance between the initial position of the moving drive mechanism 32 (the position of the moving drive mechanism 32 before its lateral movement) and the transverse blocking wheel 311 of the transverse blocking component 31 is set as X1. When the moving drive mechanism 32 laterally pushes the steel plate against the transverse blocking component 31, the distance the push wheel 322 moves laterally with the moving drive mechanism 32 is set as X2. Since the value of X1 is known, the value of X2 can be detected by the lateral distance measuring unit, thus determining the width of the steel plate as ΔX = X1 - X2 (e.g., ...). Figure 10 (As shown).

[0074] The edges at both ends of the steel plate are designated as fixed edge and free edge, respectively, with the fixed edge of the steel plate abutting against the longitudinal blocking mechanism. When the trolley is initially positioned on track 4, the longitudinal distance between the laser emitted vertically downwards by the laser ranging unit 58 and the longitudinal blocking wheel 22 is set as Y1. Using the target object on track 4 as a reference, when the laser ranging unit 58 moves with the trolley to locate and detect the free edge of the steel plate, the laser emitted vertically downwards by the laser ranging unit 58 is aligned with the free edge of the steel plate. At this point, the distance the laser ranging unit 58 moves longitudinally with the trolley is set as Y2. Since the target object is used as a reference, the distance the laser ranging unit 58 moves is the same as the distance the trolley moves, i.e., ΔS = 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 ΔY = Y1 - Y2 (e.g., ...). Figure 10 (As shown).

[0075] Since the upper surfaces of all rollers 13 on roller conveyor line 1 are flush, and the upper surface of roller 13 is used as the reference plane for laser ranging unit 58, the vertical height between laser ranging unit 58 and the reference plane is Z1 when it is in its initial position (the position of laser ranging unit 58 before the moving trolley moves along track 4); the vertical height between laser ranging unit 58 and the upper surface of steel plate is Z2. Since Z1 and Z2 can be measured by laser ranging unit 58, the thickness of steel plate is ΔZ = Z1 - Z2 (e.g., ...). Figure 12 (As shown).

[0076] In summary, the steel plate conveying and centering system of this utility model can not only center the steel plate, but also automatically measure the length, width and thickness of the steel plate online, thereby constructing a 3D center coordinate system of the steel plate, laying the foundation for subsequent intelligent hoisting or grabbing of the steel plate.

[0077] Example 2

[0078] The difference between this embodiment and Embodiment 1 is that the structure of the longitudinal blocking component 2 is different.

[0079] Reference Figure 13 The longitudinal blocking assembly includes a crossbar 20 and a mounting base 21. The crossbar 20 is laterally disposed at the longitudinal end of the roller conveyor line, and the mounting base 21 is fixed on the crossbar 20. The position on the mounting base 21 that is used to abut against the steel plate is a plane.

[0080] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A steel plate conveying and centering system, comprising a roller conveyor line, a longitudinal blocking assembly, and an alignment mechanism, wherein the roller conveyor line is used to drive the steel plate to be conveyed longitudinally, and the longitudinal blocking assembly is disposed at the longitudinal end of the roller conveyor line for longitudinally blocking the steel plate; characterized in that, The alignment mechanism includes a crossbeam, a lateral blocking assembly, and a moving drive mechanism. The crossbeam is positioned laterally below the roller conveyor line. The lateral blocking assembly is located at one end of the crossbeam and on one side of the roller conveyor line, used to laterally block the steel plate. The moving drive mechanism is located at the other end of the crossbeam and is used to laterally push the steel plate against the lateral blocking assembly. The lateral distance between the initial position of the moving drive mechanism and the lateral blocking assembly is a known distance. The moving drive mechanism is equipped with a lateral ranging unit for detecting the lateral movement distance of the moving drive mechanism. A track is longitudinally arranged on the outer side of the roller conveyor line. A target object is located at the starting point of the track. A moving trolley is longitudinally moved on the track. The moving trolley is equipped with a laser ranging unit and a trolley ranging unit. The laser ranging unit is used to locate 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 ranging unit and the longitudinal blocking assembly is a known distance. The trolley ranging unit uses the target object as a reference to detect the distance 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, which includes two longitudinal beams arranged laterally at intervals. Each longitudinal beam has a support frame at its bottom. Multiple rollers are rotatably arranged between the two longitudinal beams and are arranged at intervals along the longitudinal direction. A drive transmission unit is provided on one of the longitudinal beams and is driven and connected to each of the rollers to drive each roller to convey steel plates along the longitudinal direction.

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

4. A steel plate conveying and centering system according to claim 3, characterized in that, The crossbar is equipped with a longitudinal positioning detection element, which is used to detect whether the steel plate is in contact with the longitudinal blocking wheel.

5. A steel plate conveying and centering system according to claim 2, characterized in that, The lateral blocking assembly includes a fixed base and a lateral blocking wheel. The fixed base is fixed to the crossbeam, and the lateral blocking wheel is rotatably mounted on the fixed base. The axis of rotation of the lateral blocking wheel is vertically oriented.

6. A steel plate conveying and centering system according to claim 2, characterized in that, The moving drive mechanism includes a moving base, a push wheel, and a drive motor; the crossbeam is fixed between the two longitudinal beams and located below the roller, and a guide rail and a rack are arranged laterally on the crossbeam, with the rack located below the guide rail; the moving base is laterally slidably mounted on the guide rail, and a support is fixed on the moving base; the push wheel is rotatably mounted on the support, and the rotation line of the push wheel is vertically arranged; the drive motor is fixed on the moving base, and a gear is connected to the drive motor; the gear meshes with the rack for transmission; the drive motor drives the moving base to drive the push wheel to push the steel plate against the transverse blocking assembly.

7. A steel plate conveying and centering system according to claim 2, characterized in that, The two longitudinal beams are respectively provided with a first side baffle and a second side baffle, which are used to guide the steel plate to be transported longitudinally.

8. A steel plate conveying and centering system according to claim 2, characterized in that, A bracket is also provided between the two longitudinal beams, and the surface of the bracket used to support the steel plate is flush with the surface of the roller.

9. A steel plate conveying and centering system according to claim 5, characterized in that, The longitudinal beam is also equipped with a transverse positioning detection element to detect whether the steel plate is in contact with the transverse blocking wheel.

10. A steel plate conveying and centering system according to claim 1, characterized in that, The mobile trolley is equipped with an adjustment mechanism for adjusting the rolling friction between the mobile trolley and the track.

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