A steel bar identification and screening device

Abstract

This utility model relates to the technical field of rebar detection equipment. It provides a rebar identification and screening device, comprising a frame, a feeding device, a sorting table, a sorting component, and an identification device. The feeding device is mounted on the frame. The feeding device includes a hopper with an inlet and an outlet at its upper and lower ends, respectively, for passing through a single rebar. The sorting table is located on one side of the feeding device. The sorting component is rotatably mounted on the frame below the outlet and has at least one groove for accommodating rebars. The sorting component can transport rebars from the outlet to the sorting table by rotation. Two identification devices are symmetrically arranged at both ends of the sorting table. The sorting component transports the rebars to the sorting table in an orderly and spaced manner, allowing the identification device to clearly identify the state of both ends of each rebar. This technical solution solves the problem of low sorting efficiency for rebars with bends in the prior art.

Description

Technical Field

[0001] The embodiments of this utility model relate to the technical field of rebar detection equipment, specifically to a rebar identification and screening device. Background Technology

[0002] In the steel bar production industry, freshly produced steel bars must undergo rigorous quality inspection and sorting processes. One important task is to screen out steel bars with bends. These bent steel bars may be defective products produced during the production process due to factors such as mold deviations and uneven stress. If they are mixed with straight steel bars and flow into subsequent processing stages, they will affect the construction accuracy and safety of building structures.

[0003] Currently, the sorting of bent rebars in newly produced steel bars is mostly done manually: workers check each rebar at both ends for bends at the end of the production line, then pick out and classify the bent rebars. This method not only requires a large amount of manpower, but also, under the high-intensity production pace, is prone to missed or incorrect inspections due to visual fatigue, seriously affecting the sorting quality. At the same time, the speed of manual sorting is limited and cannot match the speed of the steel bar production line, often resulting in steel bar accumulation and restricting overall production efficiency.

[0004] Some manufacturers have attempted to use simple mechanical sorting devices to assist in operations, but existing devices have significant shortcomings: Firstly, freshly produced rebars are continuously and densely packed after exiting the production equipment. Traditional feeding structures cannot achieve orderly separation of individual rebars, resulting in multiple rebars entering the sorting area simultaneously, squeezing and overlapping each other, affecting subsequent identification. Secondly, due to the lack of a stable sorting mechanism, the spacing of the rebars on the sorting table cannot be controlled, making it difficult for the identification device to accurately detect both ends of each rebar, and unable to reliably distinguish between rebars with bends and straight rebars, thus failing to meet the stringent requirements of production quality inspection. Therefore, how to achieve efficient and automated sorting of freshly produced rebars with bends has become a key issue in improving the quality and efficiency of rebar production. Utility Model Content

[0005] To overcome the above-mentioned defects, embodiments of this utility model provide a rebar identification and screening device, which solves the technical problem of low sorting efficiency for rebars with bends in the prior art.

[0006] According to one aspect, at least one embodiment of the present invention provides a rebar identification and screening device for screening out rebars with bends, comprising:

[0007] Frame;

[0008] A feeding device is provided on the frame. The feeding device includes a feeding hopper. The upper end and lower end of the feeding hopper are respectively provided with an inlet and an outlet for passing through the reinforcing bars. The outlet is used for passing through a single reinforcing bar.

[0009] Sorting table, the sorting table is located on one side of the feeding device;

[0010] The material sorting component is rotatably mounted on the frame and located below the outlet. The material sorting component has at least one groove for accommodating steel bars. The material sorting component can transport the steel bars located at the outlet to the sorting table by rotating.

[0011] The identification device is provided in two parts, which are symmetrically arranged at both ends of the sorting table. The identification device is used to identify steel bars.

[0012] For example, in a steel bar identification and screening device provided in at least one embodiment of the present invention, a plurality of conveying components are provided on the sorting table, and the plurality of conveying components are arranged at intervals between two identification devices. The input end of the conveying component is located below the outlet, and the conveying component is used to transport steel bars so that both ends of the steel bars can pass through the identification area of ​​the identification device.

[0013] For example, in a steel bar identification and screening device provided in at least one embodiment of the present invention, the feeding device further includes a swing baffle. One end of the swing baffle is rotatably disposed on the side wall of the feeding hopper near the inlet. The swing baffle can push the steel bar located in the feeding hopper by rotating to make the steel bar fall.

[0014] For example, in at least one embodiment of the present invention, a rebar identification and screening device further includes a transfer component for transferring rebars with bends. The transfer component includes:

[0015] The support frame, of which there are two, is respectively located at both ends of the sorting table.

[0016] A transverse transfer frame, which is movably mounted on the support frame and located above the sorting table;

[0017] A magnet is mounted on the transverse frame and descends to approach the sorting table to attract a steel bar with a bend.

[0018] For example, in at least one embodiment of the present invention, a steel bar identification and screening device further includes a collection hopper, which is disposed on the frame and located on the moving path of the magnet, and the collection hopper is used to store steel bars attracted by the magnet.

[0019] For example, in a steel bar identification and screening device provided in at least one embodiment of this utility model, the transfer component further includes:

[0020] A transfer rack, which is movably mounted on the support frame and located above the sorting table;

[0021] A second magnet is raised and lowered on the transfer frame and is used to attract and transfer the steel bars in the collection hopper.

[0022] For example, in a steel bar identification and screening device provided in at least one embodiment of the present invention, the transfer component further includes a winch, which is correspondingly arranged on the transverse frame and the transfer frame, and the winch is used to drive the first magnet and the second magnet to rise and fall.

[0023] For example, in a steel bar identification and screening device provided in at least one embodiment of the present invention, the feeding device further includes: a guide plate, the guide plate being arc-shaped, the guide plate being located below the material separating component, used to support the steel bars and conduct the steel bars to the sorting table.

[0024] For example, in at least one embodiment of the present invention, a steel bar identification and screening device is provided, which further includes a hooking component located inside the collection hopper. The hooking component is used to hook the steel bar on the magnet into the collection hopper.

[0025] For example, in a steel bar identification and screening device provided in at least one embodiment of the present invention, a telescopic member is further provided on the frame, and the telescopic end of the telescopic member abuts against the swing baffle to push the swing baffle to rotate.

[0026] The beneficial effects of the embodiments of this utility model are as follows:

[0027] In this invention, the outlet of the feeding device only allows a single rebar to pass through. Combined with the rotating transport of the sorting component, this ensures that the rebars enter the sorting table in an orderly, spaced manner, avoiding processing delays caused by the accumulation and congestion of multiple rebars in traditional sorting, thus ensuring the continuity of the sorting process. Two symmetrically positioned identification devices at both ends of the sorting table can comprehensively identify both ends of the rebar, accurately determining the presence of bends and preventing missed or false detections due to incomplete identification. The sorting component, through its grooves, stably accommodates and transports the rebars, ensuring the consistency of the rebars' posture during identification. This provides stable detection conditions for the identification device, further improving the reliability of the identification results and ensuring that rebars with bends are screened out. From single-rebar feeding by the feeding device to the orderly transfer by the sorting component and the automatic identification by the identification device, the entire process requires no manual intervention, reducing reliance on manpower, minimizing fatigue errors caused by manual operation, and improving the safety of sorting operations. This provides an efficient and reliable automated solution for the post-production quality inspection of rebars. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of a steel bar identification and screening device in one embodiment of the present invention;

[0030] Figure 2 for Figure 1 A schematic diagram of the feeding device in the embodiment;

[0031] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A;

[0032] Figure 4 for Figure 1 A schematic diagram of the structure of the collection hopper in the embodiment;

[0033] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point B.

[0034] In the diagram: 1. Frame, 2. Feeding device, 21. Feed hopper, 211. Inlet, 212. Outlet, 22. Swing baffle, 23. Guide plate, 3. Sorting table, 4. Material separating component, 41. Groove, 5. Identification device, 6. Conveying component, 7. Transfer component, 71. Support frame, 72. Transverse frame, 73. Magnet one, 74. Transfer frame, 75. Magnet two, 76. Winch, 8. Collection hopper, 81. Hooking component, 9. Telescopic component. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0036] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0037] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0041] like Figures 1-5 As shown, it illustrates a steel bar identification and screening device in one embodiment of the present invention.

[0042] In some examples, the frame 1 is fixedly installed at a preset workstation. The inlet 211 of the feed hopper 21 faces the output end of the rebar production equipment, and the outlet 212 is located at the end of the feed hopper 21 away from the inlet 211. The cross-sectional dimensions of the outlet 212 are adapted to the cross-sectional dimensions of a single rebar. The material distribution component 4 is rotatably connected to the frame 1. Multiple grooves 41 are spaced along the circumference of the outer periphery of the material distribution component 4. The extension direction of the grooves 41 is consistent with the axial direction of the rotation shaft, and the groove opening size is adapted to the cross-sectional dimensions of a single rebar. The sorting table 3 is installed on the frame 1 and located on the side of the material distribution component 4 away from the feed hopper 21. The table surface of the sorting table 3 is parallel to the horizontal plane. Two identification devices 5 are fixedly installed at both ends of the sorting table 3. The identification areas of the two identification devices 5 correspond to the edge positions at both ends of the sorting table 3, and the identification direction of the identification devices 5 is along the length of the sorting table 3 towards the middle of the sorting table 3.

[0043] During operation, the reinforcing bars are output from the production equipment and enter the inlet 211 of the feeding hopper 21. Guided inside the feeding hopper 21, they reach the outlet 212. A single reinforcing bar extends from the outlet 212 and falls into one of the grooves 41 of the sorting component 4. The sorting component 4 rotates around its rotating shaft, moving the reinforcing bars in the grooves 41 towards the sorting table 3. When the sorting component 4 rotates until the grooves 41 face the sorting table 3, the reinforcing bar detaches from the grooves 41 and falls onto the sorting table 3. The sorting component 4 continues to rotate, and the other groove 41 moves below the outlet 212 to receive the next reinforcing bar. By controlling the rotation speed of the sorting component 4, a preset distance is maintained between the two reinforcing bars when they fall onto the sorting table 3. The reinforcing bars are horizontal on the sorting table 3, with their two ends corresponding to the recognition areas of two recognition devices 5. The two recognition devices 5 simultaneously recognize both ends of the reinforcing bars.

[0044] The outlet 212 of the feed hopper 21 restricts the output of steel bars to a single bar, preventing multiple steel bars from entering the subsequent stages simultaneously and causing congestion, thus ensuring the orderly sorting from the feeding stage. The sorting component 4 receives the steel bars through grooves 41 and transports them by rotating. By utilizing the spacing of the two grooves 41 and controlling the rotation speed, the steel bars can fall onto the sorting table 3 at intervals, avoiding mutual interference between adjacent steel bars and providing independent space for subsequent identification. Two identification devices 5 are symmetrically arranged at both ends of the sorting table 3, which can simultaneously identify both ends of the steel bars, ensuring that the presence of bends at both ends of the steel bars can be detected. This solves the problem of low identification efficiency caused by disordered feeding and lack of spacing between steel bars in the prior art. Through the coordinated cooperation of various components, continuous and orderly sorting of steel bars is achieved, improving the sorting efficiency of steel bars with bends.

[0045] The identification device 5 consists of an image acquisition module and a signal processing module. The image acquisition modules of the two identification devices 5 are respectively positioned facing the identification areas at both ends of the sorting table 3, with their acquisition direction pointing towards the ends of the steel bars along the length of the steel bars. When the steel bars move under the drive of the chain conveyor 6, both ends of the steel bars will sequentially enter the image acquisition range of the two identification devices 5.

[0046] The image acquisition module continuously acquires images of the rebar ends and transmits the acquired image information to the signal processing module in real time. The signal processing module has built-in feature templates for straight ends and bends of the rebar. By comparing and analyzing the real-time acquired image information with the feature templates, if the outline of the rebar end in the image matches the straight end feature template, the end is determined to be a straight end; if it matches the bend feature template, the end is determined to be a bend.

[0047] After image acquisition and comparison are completed at both ends of the rebar, the signal processing module integrates the judgment results from both ends to generate an identification signal: if at least one end is determined to be a bend, a "rebar with bend" signal is generated; if both ends are determined to be straight, a "straight rebar" signal is generated. The identification signal is transmitted to the control system of the device to provide instructions for the subsequent operation of the transfer component 7.

[0048] The conveyor 6 on the sorting table 3 is a chain plate. Several chain plates are arranged at intervals between the two identification devices 5 along the width direction of the sorting table 3. The chain extension direction of each chain plate is consistent with the length direction of the sorting table 3. The input end of the conveyor 6 is located directly below the outlet 212.

[0049] The rotating shaft of the swing baffle 22 of the feeding device 2 is fixedly installed on the inner wall of the feeding hopper 21 near the inlet 211. The axis of the rotating shaft is consistent with the length direction of the steel bar. The end of the swing baffle 22 away from the rotating shaft extends into the inside of the feeding hopper 21.

[0050] Two support frames 71 of the transfer assembly 7 are respectively installed at both ends of the sorting table 3 along its length. The top of each support frame 71 has a guide rail along the length of the sorting table 3. The two ends of the transverse frame 72 are slidably connected to the guide rails of the two support frames 71, and the transverse frame 72 can move along the extension direction of the guide rails. Magnet 1 73 is connected to the transverse frame 72 via a steel wire rope. The collection hopper 8 is fixedly installed on the frame 1, located on the side of the sorting table 3 away from the feeding device 2, and is on the moving path of the transverse frame 72. The two ends of the transfer frame 74 are slidably connected to the guide rails of the two support frames 71, and the transfer frame 74 is located on the side of the transverse frame 72 away from the distributing component 4. Magnet 2 75 is connected to the transfer frame 74 via another connector, which is arranged vertically. Two sets of winches 76 are installed on the top of the transverse frame 72 and the transfer frame 74, respectively. The steel wire ropes of the winches 76 are connected to the tops of Magnet 1 73 and Magnet 2 75, respectively.

[0051] The guide plate 23 of the feeding device 2 is fixed below the material distribution component 4. One end of the guide plate 23 is close to the rotation trajectory of the material distribution component 4, and the other end extends towards the input end of the sorting table 3. The upper surface of the guide plate 23 is an arc-shaped curved surface. The hook component 81 is a rod-shaped structure. One end of it is fixed to the inner wall of the collection hopper 8, and the other end extends into the inside of the collection hopper 8. The extension direction of the hook component 81 intersects with the moving direction of the magnet 73. One end of the telescopic component 9 is installed on the frame 1. Its telescopic end abuts against the outer wall of the rotating baffle. The extension or retraction of the telescopic end of the telescopic component 9 can push the swing baffle 22, causing the swing baffle 22 to rotate around its hinge point, which can make the opening larger or smaller.

[0052] During operation, the telescopic end of the telescopic component 9 repeatedly extends and retracts, pushing the reinforcing bars at the opening to prevent them from accumulating during descent. After being output from the production equipment, the reinforcing bars enter the inlet 211 of the feed hopper 21, are guided through the inside of the feed hopper 21 to the outlet 212, and a single reinforcing bar extends from the outlet 212 and falls into one of the grooves 41 of the sorting component 4. The sorting component 4 rotates around the rotating shaft, causing the reinforcing bars in the groove 41 to move towards the sorting table 3. When the reinforcing bar detaches from the groove 41, it falls onto the upper surface of the guide plate 23, slides along the arc-shaped surface of the guide plate 23, and is finally transmitted to the input end of the chain conveyor 6.

[0053] The chain of the chain conveyor 6 rotates, causing the steel bars to move away from the sorting unit 4 along the length of the sorting table 3. During the movement, both ends of the steel bars pass through the recognition areas of two recognition devices 5, which identify both ends of the steel bars during the movement. When the recognition device 5 identifies a steel bar with a bend, the transverse frame 72 moves along the guide rail to directly above the steel bar. The winch 76 drives the magnet 73 to descend vertically to a position close to the steel bar. After the magnet 73 attracts the steel bar, the winch 76 drives the magnet 73 to rise. The transverse frame 72 moves along the guide rail to directly above the collection hopper 8. The winch 76 drives the magnet 73 to descend. When the magnet 73 moves above the collection hopper 8 with the attracted steel bar and descends, the steel bar contacts the end of the hook 81 away from the side wall of the collection hopper 8, causing the steel bar to detach from the magnet 73 and fall into the collection hopper 8.

[0054] When the number of steel bars in the collection bucket 8 reaches the preset quantity, the transfer frame 74 moves along the guide rail to directly above the collection bucket 8. Another winch 76 drives the second magnet 75 to descend close to the steel bars in the collection bucket 8. After the second magnet 75 attracts the steel bars, it rises. The transfer frame 74 moves along the guide rail to the preset stacking position, and the second magnet 75 releases the steel bars to complete the transfer.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A reinforcing bar identification and screening apparatus for screening out reinforcing bars with bends, characterised in that, include: Frame (1); Feeding device (2), the feeding device (2) is installed on the frame (1), the feeding device (2) includes a feeding hopper (21), the upper end and the lower end of the feeding hopper (21) are respectively provided with an inlet (211) and an outlet (212) for passing through the steel bars, the outlet (212) is used for passing through a single steel bar; Sorting table (3), the sorting table (3) is located on one side of the feeding device (2); The material sorting component (4) is rotatably mounted on the frame (1) and located below the outlet (212). The material sorting component (4) is provided with at least one groove (41) for accommodating steel bars. The material sorting component (4) can transport the steel bars located at the outlet (212) to the sorting table (3) by rotating. Two identification devices (5) are provided and are symmetrically arranged at both ends of the sorting table (3). The identification devices (5) are used to identify steel bars.

2. A reinforcing bar identification and sizing apparatus as claimed in claim 1 wherein, The sorting table (3) is provided with a number of conveying components (6), which are arranged at intervals between the two identification devices (5). The input end of the conveying component (6) is located below the outlet (212). The conveying component (6) is used to transport steel bars so that both ends of the steel bars can pass through the identification area of ​​the identification device (5).

3. A reinforcing bar identification and sizing apparatus as claimed in claim 1 wherein, The feeding device (2) also includes a swing baffle (22), one end of which is rotatably disposed on the side wall of the feeding hopper (21) near the inlet (211). The swing baffle (22) can push the steel bars located in the feeding hopper (21) by rotating to make the steel bars fall.

4. A reinforcing bar identification and sizing apparatus as claimed in claim 1 wherein, It also includes a transfer component (7) for transferring steel bars with bends, the transfer component (7) comprising: Support frame (71), there are two support frames (71) respectively located at both ends of the sorting table (3), A transverse frame (72) is movably mounted on the support frame (71) and located above the sorting table (3); Magnet 1 (73) is raised and lowered on the transverse frame (72). After the magnet 1 (73) descends and approaches the sorting table (3), it attracts the steel bars with bends.

5. A reinforcing steel identification and sizing apparatus as claimed in claim 4 wherein, It also includes a collection hopper (8), which is set on the frame (1) and located on the moving path of the magnet (73). The collection hopper (8) is used to store the steel bars attracted by the magnet (73).

6. A steel bar identification and screening device according to claim 5, characterized in that, The transfer component (7) further includes: A transfer rack (74) is movably mounted on the support frame (71) and located above the sorting table (3); Magnet 2 (75) is raised and lowered on the transfer frame (74) and is used to attract and transfer the steel bars in the collection bucket (8).

7. A reinforcing steel identification and sizing apparatus as claimed in claim 6 wherein, The transfer assembly (7) also includes a winch (76), which is correspondingly mounted on the transverse frame (72) and the transfer frame (74). The winch (76) is used to drive the first magnet (73) and the second magnet (75) to rise and fall.

8. A reinforcing bar identification and sizing apparatus as claimed in claim 1 wherein, The feeding device (2) further includes a guide plate (23), which is arc-shaped and located below the material sorting component (4) to support the steel bars and transmit them to the sorting table (3).

9. A reinforcing steel identification and sizing apparatus as claimed in claim 5 wherein, It also includes a hook (81) located inside the collection hopper (8) for hooking the steel bar on the magnet (73) into the collection hopper (8).

10. A reinforcing bar identification and sizing apparatus as claimed in claim 3 wherein, It also includes a telescopic member (9) installed on the frame (1), the telescopic end of the telescopic member (9) abutting against the swing baffle (22) to push the swing baffle (22) to rotate.

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