Steel bar combing and feeding device and combing method thereof

Abstract

The present application relates to a kind of reinforcing steel bar carding loading device and its carding method, device includes the support structure of the length direction each part of the reinforcing steel bar to be carded in the horizontal direction arrangement, support structure includes the chain conveying component of the reinforcing steel bar arrangement and the guide plate of guiding part chain movement, chain periphery is connected with the carding structure of uniform arrangement, when chain moves to the scope of guide plate, the side surface of carding structure back to chain is spliced to form the supporting groove of supporting reinforcing steel bar, and the side surface of carding structure back to chain is set up the notch for reinforcing steel bar embedding, the distribution position of the carding structure of each chain conveying component is consistent, when chain moves, reinforcing steel bar in carding supporting groove can be turned over, and the part of straight reinforcing steel bar can be respectively fallen into the notch of the carding structure parallel to the support structure arrangement direction line.It uses chain to support and actively turn over reinforcing steel bar, then straight reinforcing steel bar is picked up one by one and is transferred, and carding efficiency is high, can reduce the labor intensity of staff, help to improve production efficiency.

Description

Technical Field

[0001] This invention relates to the field of rebar sorting, and more particularly to a rebar sorting and feeding device and a sorting method thereof. Background Technology

[0002] When processing or handling steel bars in batches, each steel bar needs to be placed into the processing equipment for processing. However, steel bars are usually transferred to the material picking area in bundles and piled up. The piled steel bars are intertwined and need to be sorted into individual bars before being sent into the processing equipment to avoid interference between the intertwined steel bars.

[0003] Previously, the process of sorting rebar mainly involved workers continuously extracting rebar from stacks and feeding it into processing equipment, resulting in low production efficiency and high labor intensity. To achieve automated rebar feeding, several rebar sorting and feeding machines have been designed in the industry. For example, patent CN112660711A discloses a rebar breaking machine and a rebar feeding machine, which includes several parallel chain drive components for transporting rebar. Each chain drive component is equipped with a rotating feeding cam plate. The rotating feeding cam plate breaks up the stacked raw materials and conveys them to the rebar rolling machine. The rebar rolling machine includes a relatively movable fixed-step rolling plate and a moving-step rolling plate. The rebar fed to the rebar rolling machine rests on the fixed-step rolling plate, and the moving-step rolling plate swings up and down, lifting and lowering the rebar from the fixed-step rolling plate and conveying the rebar from one step of the fixed-step rolling plate to another adjacent step. This solution uses a material-dispensing cam plate to break up the reinforcing bars and keep them neat. However, it is not suitable for sorting intersecting reinforcing bars. It cannot ensure that each material-dispensing cam plate dispenses a single reinforcing bar at the same time. Therefore, it cannot completely sort and separate the intersecting reinforcing bars, resulting in the final supplied reinforcing bars still being arranged in a disorderly manner. This leads to problems of poor sorting effect and low sorting efficiency. Ultimately, it requires the assistance of staff to sort the reinforcing bars, which is labor-intensive. Summary of the Invention

[0004] This invention addresses the problem of low efficiency and difficulty in separating interlocking rebars during current rebar sorting processes. It provides a rebar sorting and feeding device and method. A sorting structure is installed on the outer periphery of a chain. When the chain moves past the first guide section of a guide plate, the sorting structure assembles to form a support groove for the chain. As the chain moves, the sorting structure actively flips the rebars to be sorted in the support groove, promoting the separation of interlocking rebars. When the separated rebars fall to the bottom of the support groove and are flipped into a straight state, a row of sorting structures in the same group moves past the rebars, causing the straight rebars to fall into the gaps of that group of sorting structures. The chain continues to move, transporting the rebars picked up by the sorting structure one by one to subsequent workstations. This eliminates the need for manual rebar sorting by workers, reducing their workload.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows:

[0006] A rebar sorting and feeding device includes a plurality of support structures arranged horizontally, each support structure supporting a portion of the rebar to be sorted along its length. Each support structure includes a chain conveyor assembly for sorting the supplied rebar and a guide plate for guiding a portion of the chain conveyor assembly's chain movement.

[0007] The chain conveying assembly includes a closed-loop chain and several sprockets that guide the chain to change its direction of movement. The outer periphery of the chain is provided with several combing structures evenly arranged along the circumference of the chain. The combing structure has a notch on the side facing away from the chain for the reinforcing bar to slide in. The notch penetrates the combing structure along the arrangement direction of the supporting structure. The combing structures in each chain conveying assembly are distributed in the same position, and the chains of all chain conveying assemblies move synchronously when combing the reinforcing bar. The rotation axis of the sprocket is parallel to the arrangement direction of the supporting structure. The sprocket at the highest point is a redirecting sprocket. The two chain segments on both sides of the redirecting sprocket are the upward chain and the downward chain, respectively. Along the direction away from the chain, the lower sidewall of the notch of the combing structure of the upward chain is horizontal or inclined upward, and the lower sidewall of the notch of the combing structure of the downward chain is inclined downward.

[0008] The guide plate includes a first guide section below the bottom of the upward chain. The chain located in the first guide section is smoothly connected to the upward chain. A plurality of combing structures on the outer periphery of the chain within the range of the first guide section form a support groove for supporting the rebar to be combed. The groove wall of the support groove is formed by the side of the aforementioned combing structures facing away from the chain. The combing structures move into or out of the support groove as the chain moves, so as to continuously turn the rebar to be combed supported by the support groove. A row of combing structures parallel to the arrangement direction of the support structure in all chain conveying components is defined as a group. When the chain conveying components turn the rebar in the support groove, the rebar combed to a straight state falls into the gaps of the respective combing structures in the same group.

[0009] Preferably, the first guide segment is an arc-shaped segment that guides the chain to move along an arc-shaped trajectory. The arc-shaped trajectory is an arc-shaped curve with a concave center. The axes of the arc-shaped trajectories corresponding to the chains in each chain conveying assembly coincide with each other and are parallel to the arrangement direction of the support structure.

[0010] Preferably, the combing structure includes a first part and a second part installed on different links of the chain, and the notch includes a first notch in the first part and a second notch in the second part. When the chain moves to the range of the arc trajectory, the first part and the second part fit together to form a complete combing structure, and the first notch and the second notch fit together to form a complete notch.

[0011] When the chain passes around the redirecting sprocket, the two parts of the comb structure separate, and the notch opens so that the reinforcing bar in the notch can slide out.

[0012] Preferably, the first guide segment includes a horizontal segment that guides the chain to move along a horizontal trajectory and a transition segment that guides the chain to smoothly change its direction of movement, wherein the chain of the transition segment is located between the chain of the horizontal segment and the bottom end of the ascending chain.

[0013] Preferably, during the movement of the combing structure with the chain, the opposing sides of adjacent combing structures are either joined or separated. When the chain is located in the first guide section, the distance between adjacent combing structures is less than the diameter of the reinforcing bar to be combed.

[0014] Preferably, the combing structure includes two side plates arranged side by side along the direction of the support structure and an adjusting block rotatably connected between the two side plates. The notch of the combing structure passes through the two side plates along the direction of the support structure. The rotation axis of the adjusting block is parallel to the direction of the support structure. The adjusting block is also provided with an elongated hole. The elongated hole passes through the adjusting block along a direction parallel to the rotation axis of the adjusting block. The length direction of the elongated hole is perpendicular to the rotation axis of the adjusting pin. An adjusting pin passes through the elongated hole. The two ends of the adjusting pin pass through the side plates on both sides respectively.

[0015] Both side plates are provided with clearance holes for the adjustment pin to pass through. The clearance holes have sufficient space for the adjustment pin to move as the adjustment block rotates. The hole wall on one side of the clearance hole serves as a guide wall. The guide wall is provided with at least two positioning grooves for the adjustment pin to slide into. A first elastic element is also connected between the side plate and the adjustment pin to make the adjustment pin press against the guide wall or the positioning groove wall.

[0016] Preferably, the outer periphery of the chain is further provided with receiving structures spaced apart from the combing structure. Each receiving structure includes two protective plates respectively connected to both sides of the chain link. The distance between the opposing sides of the two protective plates of the combing structure is defined as a first gap, and the distance between the facing sides of the two protective plates of the receiving structure is defined as a second gap. The second gap is greater than the first gap. During chain movement, when the chain bends, causing the combing structure to approach the adjacent receiving structure, the combing structure screws into the space between the protective plates of the receiving structure. When the chain is within the range of the first guide section:

[0017] The combing structure is screwed between the two side plates of the combing structure; or

[0018] There is a gap between the combing structure and the receiving structure along the direction of chain movement, and the gap is smaller than the diameter of the reinforcing bar to be combed.

[0019] Preferably, the two ends of the adjusting pin extend out of the two side plates and are connected to limit blocks, with the two limit blocks abutting against the opposite sides of the two side plates.

[0020] Preferably, the chain conveying assembly is used to manage the front and rear positional relationship when supplying reinforcing bars. The side walls on both sides of the notch are defined as the front side wall and the rear side wall, respectively. The rear side wall of the notch is provided with a groove for the side of the reinforcing bar to slide into. The adjusting block is screwed into or out of the notch from the front side.

[0021] Preferably, each of the support structures is further provided with an adjustment mechanism adjacent to the chain conveying assembly. The adjustment mechanism includes a cam rotatably connected to the support structure and two levers. The two levers are arranged side by side on both sides of the chain of the chain conveying assembly, and the rotation axes of the two levers coincide. The rotation axes of both the levers and the cam are parallel to the arrangement direction of the support structure. The two levers are located side by side on both sides of the chain of the chain conveying assembly.

[0022] When the combing structure moves with the chain, the two tracks corresponding to the adjusting pins located at both ends of the guide wall serve as the inner and outer boundaries. The rotation axis of the lever is located between the inner and outer boundaries on both sides of the chain. One end of the lever serves as the guide end. The distance between the rotation axis of the lever and the guide end is greater than the straight-line distance between the rotation axis of the lever and any track of the adjusting pin. Both sides of the lever are formed with guide surfaces for guiding the sliding of the adjusting pin. During the movement of the adjusting pin with the chain, the guide surfaces force the adjusting pin to slide towards one end of the guide wall. A swing structure is also fixedly connected between the two levers. The swing structure abuts against the contour surface of the cam.

[0023] Preferably, the support structure is further connected to a second elastic element for driving the swing structure to rotate toward the cam profile surface, so that the swing structure remains in contact with the cam profile surface.

[0024] Preferably, when the chain conveying assembly is feeding the reinforcing bars, along the moving direction of the chain, the guide wall is the front side wall of the clearance hole, and the guide end of the lever is located behind the rotating axis of the lever.

[0025] Preferably, each of the support structures is provided with an adjustment mechanism that corresponds to and cooperates with the chain conveyor assembly. The rotation axes of the paddles of each adjustment mechanism are coincident, and the cams of each adjustment mechanism are all mounted on the same shaft so that the cams of each adjustment mechanism rotate synchronously and coaxially.

[0026] Preferably, the support structure further includes two side-by-side support plates, the surface of which is perpendicular to the arrangement direction of the support structure, and the chain conveying assembly and the guide plate are both installed between the two side-by-side support plates.

[0027] Preferably, each of the support structures includes two guide plates, which are located on both sides of the chain. The two guide plates are fixedly connected to the opposing sides of the two support plates. The guide plates have guide grooves on the sides facing the chain to guide the movement of the chain. The guide grooves pass through both ends of the guide plates along the movement trajectory of the chain.

[0028] The pin end of the chain protrudes from the side of the chain link and is rotatably connected to a side roller. The side rollers are evenly arranged along the circumference of the chain. The side rollers located on both sides of the chain are respectively inserted into the guide grooves of two guide plates and roll in cooperation with the groove walls.

[0029] Preferably, the guide plate further includes a second guide section that guides the movement of the upward chain, the second guide section being fixedly connected to the first guide section.

[0030] Preferably, the side of the support structure is also connected to a push block, which is located on the path of the reinforcing bar moving with the upward chain. The bottom of the push block is processed with an inclined surface to guide the reinforcing bar in the notch to slide in the direction of the opening of the notch. During the process of the combing structure moving upward with the upward chain and passing the push block, the minimum distance between the push block, the inclined surface and the opening of the notch along the depth direction of the notch of the combing structure is only enough to accommodate one reinforcing bar.

[0031] Preferably, the push block has at least two parallel elongated through slots, through which bolts for locking the push block pass, and the threaded end of the bolts engages with the threaded end of the support structure. When the combing structure moves upward along with the chain of the chain conveying assembly and passes the push block, the depth direction of the notch in the combing structure is parallel to the length direction of the through slot.

[0032] Preferably, the sprocket of the chain conveying assembly further includes a drive sprocket, and the rebar sorting and feeding device further includes a first drive shaft for mounting each drive sprocket and a first motor for driving the first drive shaft to rotate, and the drive sprocket of each chain conveying assembly rotates synchronously with the first drive shaft.

[0033] Preferably, the area where the support groove of all the chain conveying components supports the reinforcing bars is defined as the unloading area. The reinforcing bar sorting and feeding device also includes a row of bases arranged parallel to the support structure. The bases are rotatably connected to a support container for temporarily storing the reinforcing bars to be sorted and a cylinder for driving the support container to rotate. The rotation axis of the support container is parallel to the arrangement direction of the support structure. When the cylinder drives the support container to rotate until the opening of the support container is tilted downwards, the opening of the support container faces the unloading area. The cylinder body and piston rod of the cylinder are respectively hinged to the base and the support container.

[0034] Preferably, in the support structures arranged in a row, the opposite sides of the support structures at both ends are connected with end plates to prevent the reinforcing bars to be combed from slipping off from both ends.

[0035] Preferably, the rebar sorting and feeding device further includes a slide bar adjacent to the redirecting sprocket for receiving the rebar and a chain assembly for pushing the rebar on the slide bar to slide. Several slide bars are arranged along the arrangement direction of the support structure, each slide bar is parallel to each other and staggered from the support structure. The chain assembly is arranged in a one-to-one correspondence with the slide bar, and the chain of the chain assembly includes a section of conveyor chain with the top surface flush with the corresponding slide bar.

[0036] Preferably, the slide bar is inclined, with one end of the slide bar receiving the reinforcing bar being lower than the other end, and the end of the slide bar receiving the reinforcing bar is also connected to an upwardly protruding stop.

[0037] Preferably, the rebar sorting and feeding device further includes a second drive shaft and a second motor for driving the second drive shaft to rotate. The drive sprockets of each chain assembly are all mounted on the second drive shaft and rotate synchronously with the second drive shaft.

[0038] Preferably, the rebar sorting and feeding device further includes a guide rod located above the slide bar, the guide rod being parallel to the slide bar, and the distance between the guide rod and the slide bar being sufficient to accommodate only one rebar.

[0039] Preferably, the rebar sorting and feeding device further includes a mounting frame for installing the chain assembly and the slide bar. The chain assembly and the slide bar are movably connected to the mounting frame. The mounting frame is provided with a first adjusting component for adjusting the position and angle of the chain assembly and the slide bar, and a second adjusting component for adjusting the position and angle of the guide rod.

[0040] A sorting method applicable to the above-mentioned rebar sorting and feeding device includes the following steps:

[0041] S1. Place the steel bars to be combed into the support groove of a chain conveyor assembly, and control the chain of the chain conveyor assembly to move synchronously;

[0042] S2. The combing structure constituting the support groove moves continuously with the chain and is replaced one by one, causing the steel bars to be combed in the support groove to be constantly turned over;

[0043] S3. The continuously moving chain is used to turn and disperse the steel bars in the support groove to a straight and parallel feeding state. When the combing structure and the gap of the combing structure of each chain conveying component move to the bottom of the support groove with the chain, the steel bars to be fed that are above the gap and at the bottom of the support groove fall into the gap of a row of combing structures in the same group.

[0044] S4. The combing structures carrying the reinforcing bars in each column move sequentially to the downward chain along with the chain, so that the straight reinforcing bars carried by each combing structure slide down in sequence.

[0045] A sorting method applicable to the above-mentioned rebar sorting and feeding device includes the following steps:

[0046] S1. Place the steel bars to be combed into the support groove of a chain conveyor assembly, and control the chain of the chain conveyor assembly to move synchronously;

[0047] S2. The combing structure constituting the support groove moves continuously with the chain and is replaced one by one, causing the steel bars to be combed in the support groove to be constantly turned over;

[0048] S3. The continuously moving chain is used to turn and disperse the steel bars in the support groove to a straight and parallel feeding state. When the combing structure and the gap of the combing structure of each chain conveying component move to the bottom of the support groove with the chain, the steel bars to be fed that are above the gap and at the bottom of the support groove fall into the gap of a row of combing structures in the same group.

[0049] S4. The combing structures carrying the reinforcing bars in each column move sequentially to the downlink chain, so that the straight reinforcing bars carried by each combing structure slide sequentially onto the slide bar;

[0050] S5. Each of the chain assemblies operates synchronously, pushing the steel bars on the slide bar to slide along the length of the slide bar, and then sliding down sequentially from one end of the slide bar.

[0051] The beneficial technical effects of the technical solution of this invention are as follows:

[0052] (i) In each support structure, part of the chain of the chain conveyor assembly moves under the guidance of the guide plate. When the chain is within the range of the first guide section of the guide plate, the combing structure on the outer periphery of the chain assembles to form a support groove for supporting the reinforcing bars to be combed. Multiple support structures are arranged in a row along the horizontal direction, and the support grooves in multiple support structures together support the reinforcing bars to be combed. Each part of the reinforcing bars to be combed along its length is placed in the support groove of each chain conveyor assembly. As the chain moves, the combing structure that participates in forming the support groove continuously moves into or out of the support groove, which can continuously turn over the reinforcing bars in the support groove, gradually dispersing the intertwined reinforcing bars to be combed. The combing structures of each chain are distributed in the same position, and each chain moves synchronously. The combing structures of each chain located in the same position are always arranged in a row. The side of the combing structure facing away from the chain has a notch for the reinforcing bars to slide in. The combing structures arranged in a row can allow the straight reinforcing bars after they have been dispersed to fall in. After the interlaced reinforcing bars to be combed are separated and dispersed, the straight reinforcing bars that are parallel to the direction of the supporting structure can fall into a row of notches below the reinforcing bars. Then the moving chain will transport and transfer the reinforcing bars.

[0053] If the reinforcing bars are in a chaotic and intertwined state, when a reinforcing bar falls into the gap below it, only one or a few sections of the bar will fall into the gaps of a few combing structures in the same row. As the chain conveyor component moves the combing structure and the reinforcing bars upwards, the gaps in the combing structure can be used to drag the reinforcing bar out of the overall intertwined reinforcing bars to be combed. Moreover, after being pulled out, the reinforcing bar cannot stably rest on the side walls of the gaps in the combing structures. When the combing structure moves to the upper chain, some of the reinforcing bars that fell into the gaps in the combing structure will slide back into the support groove under their own gravity. This process also achieves the function of combing and separating the intertwined reinforcing bars. When the chain conveyor component is running, by continuously turning over the reinforcing bars to be combed and pulling out and separating the intertwined reinforcing bars, it can actively comb the intertwined reinforcing bars neatly, with high combing efficiency, which helps to improve production efficiency and reduce manpower requirements. Moreover, the straight reinforcing bars after separation can fall into the gaps of a row of combing structures, and then the chain drives the combing structure to move, which can easily pick up and transfer the separated reinforcing bars. When the sorting structure reaches the downward chain, the lower side wall of the sorting structure's notch tilts downward, allowing the picked-up steel bars to be thrown to the next work station. This eliminates the need for workers to pick up and transfer the steel bars one by one, reducing the workload of the workers.

[0054] (ii) By controlling the adjustment block to rotate between the two side plates, the degree to which the adjustment block is screwed into the notch can be changed, thereby changing the width of the notch for the reinforcing bar to slide in. This ensures that when the combing structure picks up reinforcing bars of different diameters, only one reinforcing bar falls into the notch, thus making the combing and feeding device suitable for picking up reinforcing bars of different diameters and expanding the applicability of the reinforcing bar combing and feeding device.

[0055] When the adjusting block rotates, the adjusting pin slides along the guide wall under the action of the first elastic element until the adjusting pin slides into the positioning groove. This locks the position of the adjusting pin and the rotation angle of the adjusting block, thereby locking the width of the notch for the reinforcing bar to slide in, ensuring that the width of the notch of the chain conveyor assembly does not change when picking up the reinforcing bar.

[0056] (III) When the cam rotates, the oscillating structure abuts against the cam's contour surface and oscillates with the cam's rotation. Simultaneously, the oscillating structure drives the two levers to rotate, swinging the guide ends of the levers onto the movement trajectory of the adjusting pins. At this time, the chain of the chain combing assembly continues to move, and the adjusting pins of each combing structure move past the levers one by one. When the adjusting pin passes the guide surface on the side of the lever, the force exerted by the guide surface and guide wall on the adjusting pin forces it to slide towards a certain positioning groove until it slides into another positioning groove. As the chain moves, the adjusting pins of each combing structure move past the levers in sequence, thus automatically adjusting the degree to which each adjusting block extends into the notch.

[0057] (iv) The cams of each adjustment mechanism are mounted on the same shaft, so that the cams of all adjustment mechanisms rotate synchronously with the shaft. This allows for convenient simultaneous adjustment of the paddles mounted on each support structure, as well as convenient adjustment of the position of the adjustment pins of multiple chain conveyor components using the adjustment mechanism.

[0058] (v) The two ends of the chain pin are rotatably connected to side rollers. The side rollers roll in the guide groove, which can guide the chain links of the chain conveyor assembly to slide smoothly along the guide groove.

[0059] (vi) Push blocks are installed along the path of the push block as it moves with the upward chain. When the combing structure passes the push block, the minimum distance between the notch opening of the combing structure and the inclined surface of the push block can only accommodate one rebar. The inclined surface of the push block can be used to limit the number of rebars embedded in the notch. When combing rebars with smaller diameters, there may be multiple rebars embedded in the notch sequentially along the depth direction of the notch. When the combing structure passes the push block, the push block can push out the excess rebar from the opening of the notch, so that only one rebar is embedded in each notch, thereby ensuring that each combing structure feeds only one rebar during the rebar combing and feeding process.

[0060] (vii) The back wall of the notch is recessed to form a groove. After the straight steel bar falls into the notch of the same row of combing structure, the combing structure carrying the steel bar passes through the upward chain. Each part of the steel bar falls into the groove of each notch. The groove wall of the groove prevents the steel bar from sliding down from the opening of the notch, so that the steel bar moves upward smoothly with the combing structure. Attached Figure Description

[0061] Figure 1 A schematic diagram of the steel bar sorting and feeding device in Embodiment 1 of the present invention is shown;

[0062] Figure 2 A schematic diagram of the cooperation between the support structure and the first transmission shaft in Embodiment 1 of the present invention is shown;

[0063] Figure 3 A schematic diagram of the cooperation between the guide plate and the chain conveyor assembly in Embodiment 1 of the present invention is shown;

[0064] Figure 4 A schematic diagram showing the connection between the adjusting block and the combing structure in Embodiment 1 of the present invention is shown;

[0065] Figure 5 A schematic diagram of the cooperation between the adjusting mechanism and the adjusting pin in Embodiment 1 of the present invention is shown;

[0066] Figure 6 A schematic diagram of the engagement between the lever and the adjusting pin in Embodiment 1 of the present invention is shown;

[0067] Figure 7A schematic diagram of the cooperation between the pusher block and the chain conveyor assembly in Embodiment 1 of the present invention is shown;

[0068] Figure 8 This diagram illustrates the connection between the base and the supporting container in Embodiment 1 of the present invention.

[0069] Figure 9 A schematic diagram showing the connection between the chain assembly and the mounting frame in Embodiment 1 of the present invention is shown;

[0070] Figure 10 A schematic diagram of the structure of the first adjusting member and the second adjusting member in Embodiment 1 of the present invention is shown;

[0071] Figure 11 A schematic diagram of the installation of the guide plate and chain conveyor assembly in Embodiment 2 of the present invention is shown;

[0072] Figure 12 A schematic diagram showing the connection between the combing structure, the receiving structure, and the chain in Embodiment 2 of the present invention is shown.

[0073] Marked in the attached diagram:

[0074] 1-Frame; 11-Support structure; 111-Support plate; 112-Extension plate; 113-End plate; 12-Guide plate; 121-First guide section; 121a-Horizontal section; 121b-Transition section; 122-Second guide section; 123-Guide groove; 13-Top plate; 14-First drive shaft; 141-First motor; 15-Push block; 151-Inclined surface;

[0075] 2-Chain conveyor assembly; 21-Side roller; 22-Organizing structure; 22a-Support groove; 221-Notch; 221a-First notch; 221b-Second notch; 23-Accommodation structure; 231-Protective plate; 232-Connecting plate; 24-Groove; 25-Adjusting block; 251-Adjusting pin; 252-Limiting block; 253-Rotating shaft; 26-Allowing hole; 261-Guide wall; 262-Positioning groove; 27-First elastic element; 28-Redirecting sprocket;

[0076] 3-Pulley; 31-Guide surface; 32-Shaft; 33-Oscillating structure; 331-Oscillating rod; 332-Second elastic element; 333-Rolling bearing; 34-Cam; 341-Camshaft;

[0077] 4-Base; 41-Container support; 42-Concave arc surface; 43-Drive cylinder;

[0078] 5-Mounting bracket; 51-Rod body; 511-Sleeve; 512-Connecting block; 52-Adjusting plate; 53-Mounting component; 54-Slide rod; 541-Limiting plate; 55-Chain assembly; 551-Second drive shaft; 552-Second motor; 56-Vertical rod; 561-First slider; 57-Horizontal rod; 571-Second slider; 58-Guide rod. Detailed Implementation

[0079] To make the objectives, technical solutions, and advantages of this invention clearer, the following detailed description of a rebar sorting and feeding device proposed by this invention, in conjunction with the accompanying drawings and specific embodiments, will provide further clarity. The advantages and features of this invention will become clearer from the following description. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, used only to facilitate and clearly illustrate the purpose of the embodiments of this invention. Please refer to the accompanying drawings to make the objectives, features, and advantages of this invention more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation conditions of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this invention, should still fall within the scope of the technical content disclosed in this invention.

[0080] To more clearly describe the above-mentioned rebar sorting and feeding device and its sorting method, this invention defines the terms "inner circumference of the chain" and "outer circumference of the chain". Specifically, "inner circumference of the chain" refers to the side of the chain conveying assembly and the chain of the chain assembly facing the sprocket; "outer circumference of the chain" refers to the side of the chain conveying assembly and the chain of the chain assembly facing away from the sprocket.

[0081] The following will be combined with the appendix Figures 1 to 12 The technical solution of the steel bar sorting and feeding device and its sorting method of the present invention is described in detail with specific embodiments.

[0082] Example 1

[0083] like Figures 1 to 10 As shown, a rebar sorting and feeding device of this embodiment includes a frame 1 installed on the ground. The frame 1 includes nine support structures 11 evenly arranged in the horizontal direction. Each support structure 11 supports a portion of the rebar to be sorted along its length. Each support structure 11 includes two parallel vertical support plates 111, a chain conveying assembly 2 for sorting and feeding the rebar, and a guide plate 12 for guiding part of the chain of the chain conveying assembly 2 to move.

[0084] The chain conveyor assembly 2 is installed between two support plates 111 of the support structure 11. The chain conveyor assembly 2 includes a closed-loop chain and several sprockets for guiding the chain to change its direction of movement. Several combing structures 22 are evenly arranged along the circumference of the chain. The combing structures 22 have notches 221 on their sides facing away from the chain for reinforcing bars to slide into. The chains of each chain conveyor assembly 2 move synchronously during operation, and the combing structures 22 on each chain are distributed in the same position. During the synchronous movement of the chains of each chain conveyor assembly 2, the combing structures 22 with consistent distribution positions are always arranged in a row. Combating structures 22 in the same row move synchronously, and are defined as a group. The arrangement direction of the combing structures 22 in the same group is parallel to the arrangement direction of the support structure 11, and the notches 221 of the combing structures 22 in the same group also remain in a row.

[0085] In the plurality of sprockets, the rotation axes of each sprocket are parallel to the arrangement direction of the support structure 11. The sprocket at the highest point is the redirecting sprocket 28. When the chain passes over the redirecting sprocket 28, the parts of the chain on both sides of the redirecting sprocket 28 are the upward chain and the downward chain, respectively.

[0086] The guide plate 12 is also installed between the two support plates 111. The guide plate 12 includes a first guide section 121 lower than the bottom of the upward chain and a second guide section 122 that guides the upward chain to move upward in the vertical direction. The first guide section 121 and the second guide section 122 are integrally connected.

[0087] In this embodiment, the first guide segment 121 of the guide plate 12 is an arc segment that guides the chain to move along an arc trajectory. The arc trajectory of the chain is high at both ends and low in the middle, forming a concave arc shape. The axis of the arc where the arc trajectory of the chain is located is parallel to the arrangement direction of the support structure 11, and the axis of the arc where the arc trajectory of each chain is located coincides.

[0088] When the chain moves through the first guide segment 121 of the guide plate 12 along the arc-shaped trajectory, the various combing structures 22 on the outer periphery of this part of the chain within the arc-shaped trajectory area come into contact with each other, forming a support groove 22a to support the reinforcing bar to be combed. The groove wall of the support groove 22a is formed by splicing the surfaces of the combing structures 22 facing away from the chain. Therefore, during the design and installation, the curvature of the arc-shaped trajectory needs to be considered when designing the adjacent sides between the combing structures 22 to ensure that the adjacent sides between two adjacent combing structures 22 can fit tightly when the chain passes through the combing structure 22, preventing the reinforcing bar from falling into the gap between the two combing structures 22. It should be understood that when the chain is within the arc-shaped trajectory area, if the sides of adjacent combing structures 22 cannot fit together, but the width of the gap between adjacent combing structures 22 is smaller than the diameter of the reinforcing bar, then the reinforcing bar will not fall into the gap between adjacent combing structures 22.

[0089] In another embodiment, if the gap width between adjacent combing structures 22 is greater than the diameter of the reinforcing bar when the reinforcing bar is within the arc trajectory range, the reinforcing bar will fall into the gap between adjacent combing structures 22. In this case, in order to achieve the purpose of feeding the reinforcing bars one by one and ensure that the reinforcing bars between adjacent combing structures 22 can slide smoothly when they reach the downward chain, the combing structure 22 needs to be redesigned. The structure of the combing structure 22 should meet the following requirements: when the combing structure 22 moves to the upward chain, the top surface of the combing structure 22 (that is, the front side of the combing structure 22 along the direction of chain movement) extends downward at an angle away from the chain. The reinforcing bars located in the gap between adjacent combing structures 22 cannot be stably placed on the combing structure 22. This ensures that the reinforcing bars located on the top surface of the combing structure 22 will slide down along the top surface of the combing structure 22 back to the support groove 22a. That is, the gap between the combing structures 22 can be used to extract the reinforcing bars from the interlaced reinforcing bars to be combed as a whole, and play the function of combing the reinforcing bars, but will not participate in feeding and transferring the reinforcing bars.

[0090] In this embodiment, the arc trajectory is a semi-circular arc, but in reality, it does not restrict whether the arc trajectory is a superior arc or a inferior arc. However, when designing the first guide section 121 of the guide plate 12, it should be ensured that the steel bars to be combed can be easily placed into the support groove 22a, and that the combing structure 22 is prevented from bumping during chain movement.

[0091] Each supporting structure 11 and its support groove 22a are arranged in a horizontal row. The reinforcing bars to be combed can be placed horizontally in the support groove 22a of the supporting structure 11, that is, each part of the reinforcing bar to be combed rests on the groove wall of a support groove 22a, and the groove wall of each support groove 22a supports a part of the reinforcing bar to be combed along its length. As the combing structure 22 moves with the chain, the combing structure 22 constituting the support groove 22a continuously enters or leaves the area where the support groove 22a is located, which can continuously turn over the reinforcing bars to be combed supported by the support groove 22a, thereby gradually sorting and dispersing the intertwined reinforcing bars to be combed. This process can also be regarded as the combing structure 22 constituting the support groove 22a being continuously replaced. When the interlaced reinforcing bars to be combed separate, a straight reinforcing bar parallel to the direction of the support structure 11 falls to the bottom of the support groove 22a. As the notches 221 of the corresponding row of combing structures 22 pass under this reinforcing bar, each part of the reinforcing bar can fall into the notches 221 of the respective combing structures 22 in the same row and be picked up by that row of combing structures 22. As the chains of the various chain conveying components 2 continue to move, the reinforcing bars picked up by a row of combing structures 22 can be fed and transferred along with the movement of the chains.

[0092] Furthermore, when sorting the supplied reinforcing bars, if the reinforcing bars to be sorted in the support groove 22a are still in a chaotic and intertwined state, the reinforcing bars at the bottom of the support groove 22a cannot be fully aligned with the gaps 221 of a row of sorting structures 22. In this case, the reinforcing bars can only fall into the gaps 221 of a few sorting structures 22 in the same row of sorting structures 22, and cannot be stably placed on the side wall of the gaps 221 of a row of sorting structures 22. Subsequently, the chain moves along the first guide section 121 and the second guide section 122 of the guide plate 12, and can use the side wall of the gap 221 to pull the reinforcing bars that have fallen into the gap 221, and pull the reinforcing bar in the gap 221 out from the intertwined reinforcing bars to be sorted. However, the reinforcing bars that have been pulled out cannot be stably placed on the lower side wall of the gaps 221 of each sorting structure 22. The part of the reinforcing bar that is not placed in the gap 221 falls down and pulls the part of the reinforcing bar that is placed in the gap 221, making it unable to maintain balance and sliding back to the support groove 22a. This process can achieve the function of extracting and separating the intertwined reinforcing bars. When the chain conveyor assembly 2 is running, it actively separates the intersecting steel bars by continuously turning them over and pulling out and separating them. This high sorting efficiency helps improve production efficiency and reduce manpower requirements. The separated, straight steel bars fall into the gaps 221 of a row of sorting structures 22, which can then automatically pick up the separated steel bars and transfer them, eliminating the need for workers to pick up the steel bars one by one and reducing the labor intensity of the workers.

[0093] In this embodiment, the second guide segment 122 of the guide plate 12 guides the upward chain to move upward along a vertical trajectory. The vertical trajectory of the upward chain is tangent to the arc trajectory of the chain when it is in the second guide segment 122 of the guide plate 12, so as to ensure that the chain moves smoothly at the position where the first guide segment 121 and the second guide segment 122 of the guide plate 12 meet. When the combing structure 22 moves with the upward chain, the lower sidewall of the notch 221 of the combing structure 22 remains horizontal or inclined upward, providing stable support for the reinforcing bars in the notch 221 of the combing structure 22, so that the reinforcing bars are not easy to slip off during the upward movement of the combing structure 22. Subsequently, as the corresponding combing structures 22 move along the chain and pass around the redirecting sprocket 28, when they reach the area where the downlink chain is located, the lower side wall of the notch 221 of the combing structure 22 is tilted downwards, allowing the steel bars in the notch 221 to slide off. The chains of each chain conveying component 2 move synchronously, and the corresponding combing structures 22 move simultaneously past the redirecting sprocket 28, and then simultaneously reach the downlink sprocket. When each combing structure 22 reaches the downlink chain in sequence, the steel bars picked up by each combing block will also slide off from the notch 221 of the combing block in sequence, achieving the effect of conveying the steel bars one by one to the subsequent work station.

[0094] The lower sidewall of notch 221 is limited to accommodate the working method of the rebar sorting and feeding device. The lower sidewall of notch 221 of the sorting structure 22 of the upward chain is kept horizontal or inclined upward to ensure that the rebar picked up by the sorting structure 22 does not easily fall off when it leaves the support groove 22a as the chain moves upward. The lower sidewall of notch 221 of the sorting structure 22 of the downward chain is inclined downward so that the rebar picked up by the sorting structure 22 can pass around the redirecting sprocket 28 before falling off, thereby achieving the purpose of feeding the rebar to other work stations one by one.

[0095] However, it should be understood that in practical applications, the chain will change its direction of movement when it passes the redirecting sprocket 28. During the process of combing and feeding the reinforcing bars, along the direction of movement of the chain, the rear side wall of the notch 221 within the range of the downward chain is the lower side wall of the notch 221 of the combing structure 22; the front side wall of the notch 221 within the range of the upward chain is the lower side wall of the notch 221 of the combing structure 22.

[0096] In addition, in this embodiment, the upward chain moves upward in the vertical direction and the downward chain moves downward in the vertical direction. However, in reality, the upward chain can move upward in an inclined direction and the downward chain can also move downward in an inclined direction. Therefore, when designing the shape of the combing structure 22 and the gap 221, the inclination angle of the upward chain and the downward chain must be considered to ensure that the gap 221 of the combing structure 22 meets the requirements when passing through the upward chain and the downward chain.

[0097] Furthermore, since this solution requires the support grooves 22a formed by the combing structure 22 to support the reinforcing bars, the support plate 111 should avoid the area where the support grooves 22a are arranged along the length of the support structure 11 to avoid interfering with the movement of the reinforcing bars. In this embodiment, the upper surface of the support plate 111 is provided with an arc-shaped groove, thereby exposing each combing structure 22 that constitutes the support groove 22a. The side of the support structure 11 located at both ends that are far apart from each other is also detachably connected to the end plate 113 by bolting, which is used to prevent the reinforcing bars from sliding out from both ends of the support structure 11. The area where the support grooves 22a of all chain conveying components 2 between the two end plates 113 support the reinforcing bars is defined as the unloading area. The reinforcing bars to be combed can be directly poured into the unloading area for combing and feeding operations.

[0098] Specifically, in this embodiment, the top surface of the support plate 111 is further extended upward to form an extension plate 112 for mounting the redirecting sprocket 28, and the position of the redirecting sprocket 28 is higher than the first guide section 121 of the guide plate 12.

[0099] In this embodiment, the first guide section 121 of the guide plate 12 is installed on the side of the support plate 111, and the second guide section 122 is installed on the side of the extension plate 112 of the support plate 111. The concave arc surface 42 of the first guide section 121 faces upward. In this embodiment, both ends of the chain pin of the chain conveying assembly 2 protrude from the side of the chain link, and both ends of the chain pin are rotatably connected to side rollers 21. The rotation axis of the side rollers 21 is parallel to the axis of the chain pin. Guide grooves 123 are provided on the opposing sides of the two guide plates 12. The guide grooves 123 are opened along the extension direction of the guide plates 12 and pass through both ends of the guide plates 12. When the chain of the chain conveying assembly 2 moves through the guide plates 12, the side rollers 21 on both sides of the chain link slide into the guide grooves 123 of the two guide plates 12 respectively and roll in cooperation with the groove wall of the guide groove 123. When controlling the movement of the chain to straighten the reinforcing bars, the chain slides from the end of the first guide section 121 away from the second guide section 122 into the guide groove 123 of the guide plate 12, then moves along the guide groove 123 of the guide plate 12, and finally slides out from the second guide section 122.

[0100] In this embodiment, the chain conveyor assembly 2 includes not only a redirecting sprocket 28, but also multiple sprockets for guiding the chain to change its direction of movement. Each sprocket of the chain conveyor assembly 2 is rotatably connected between two support plates 111 of the support structure 11. The redirecting sprocket 28 of the chain conveyor assembly 2 is installed between the extension plates 112 of the two support plates 111. The redirecting sprocket 28 is the highest among all the sprockets. After the chain of the chain conveyor assembly 2 passes through the first guide section 121 of the guide plate 12, it slides upward along the second guide section 122 of the guide plate 12, then passes around the redirecting sprocket 28 and moves downward vertically. In addition, a tensioning structure is installed between the two support plates 111. At least one sprocket of the chain conveyor assembly 2 is installed on the tensioning structure. The position of the sprocket can be adjusted using the tensioning structure to keep the chain of the chain conveyor assembly 2 taut.

[0101] Furthermore, a row of sprockets corresponding to each other in each sprocket conveying assembly is used as the driving sprocket. In this embodiment, the driving sprocket is located at the bottom of the support structure 11, dividing the driving sprockets of each chain conveying assembly 2 into a group. A first drive shaft 14 is also rotatably connected between each support structure 11. The axis of the first drive shaft 14 is parallel to the arrangement direction of the support structure 11. Multiple driving sprockets in the same group are coaxially connected to the first drive shaft 14. The driving sprockets of each chain conveying assembly 2 are all mounted on the first drive shaft 14 and rotate synchronously with the first drive shaft 14. A first motor 141 is also installed on the frame 1. The first motor 141 is connected to the first drive shaft 14 through a gear reducer. The first drive shaft 14 drives the driving sprockets of each chain conveying assembly 2 to rotate synchronously, so that the chains of each chain conveying assembly 2 move synchronously.

[0102] In this embodiment, the combing structure 22 includes a first part and a second part installed on different links of the chain conveying assembly 2, and the two parts of the combing structure 22 are adjacent to each other. When the combing structure 22 moves with the chain of the chain conveying assembly 2 and combs the reinforcing bars to be combed in the support groove 22a, in the direction of chain movement, the first part of the combing structure 22 is located in front of the second part. The notch 221 includes a first notch 221a opened in the first part and a second notch 221b opened in the second part. The complete notch 221 can only be formed when the two parts of the combing structure 22 are joined together. In this embodiment, when the combing structure 22 moves with the chain past the first guide section 121 of the guide plate 12, this part of the chain is guided by the first guide section 121 of the guide plate 12 and bends into a concave arc shape, so that the first part and the second part of the combing structure 22 are close together and the sides of the first part and the second part are in contact. At this time, the first notch 221a and the second notch 221b are joined together to form a complete notch 221 for the insertion of the reinforcing bar. When the chain of the chain conveying assembly 2 reaches the second guide section 122 of the guide plate 12, the first part and the second part of the combing structure 22 will separate, and the first notch 221a and the second notch 221b will end the joining state. At this time, although the notch 221 is no longer complete, the side wall of the second notch 221b can still be used to support the reinforcing bar. The side wall of the second notch 221b is also the rear side wall of the notch 221.

[0103] As the chain passes around the redirecting sprocket 28, the part of the chain meshing with the redirecting sprocket 28 bends and deforms into an upward-convex arc shape. The separation degree between the first part and the second part of the combing structure 22 increases, causing the gap 221 to open. The steel bar in the gap 221 first slides down to the side wall of the first notch 221a, which is also the front side wall of the gap 221. After the chain passes around the redirecting sprocket 28, the side wall of the first notch 221a tilts downward, allowing the steel bar to slide down along the side wall of the first notch 221a.

[0104] The combing structure 22 is divided into two parts that engage with different chain links. The first and second parts of the combing structure 22 can be offset relative to each other, allowing adjacent chain links connected to the same combing structure 22 to swing freely without being locked by it. This allows the chain links to bend and deform smoothly, ensuring that the chain fully and tightly engages with the sprocket when passing over it, preventing it from easily falling off. When designing the first and second parts of the combing structure 22, attention should be paid to the opening direction of the first notch 221a and the second notch 221b. This ensures that in the upward chain, the sidewall of the second notch 221b can provide support for the reinforcing bar; and in the downward chain, the sidewall of the first notch 221a allows the reinforcing bar to slide smoothly down. In addition, considering that the first and second parts of the combing structure 22 separate when the chain passes the redirecting sprocket 28, the reinforcing bar may fall between the first and second parts of the combing structure 22. Therefore, in order to ensure that the reinforcing bar slides smoothly when passing the descending chain, the side where the first and second parts of the combing structure 22 are in contact should be tilted. That is, along the direction of chain movement, the rear side of the first part of the combing structure 22 is tilted. When the combing structure 22 reaches the descending chain, the rear side of the first part of the combing structure 22 is tilted downward in the direction away from the chain.

[0105] Furthermore, as the chain-connected combing structure 22 moves upward along the second guide section 122 of the guide plate 12, the reinforcing bars fall onto the side wall of the second notch 221b of the notch 221. To ensure that the reinforcing bars do not easily slip off the second notch 221b during the upward movement of the chain conveyor assembly 2, the side wall of the second notch 221b is also machined with recessed grooves 24, which penetrate the second part of the combing structure 22. When the various parts of the reinforcing bars slide into the corresponding row of notches 221 of each chain conveyor assembly 2, the chain conveyor assembly 2 operates, moving the reinforcing bars to the upward chain. The various parts of the reinforcing bars then fall into the grooves 24 of each notch 221, where the groove walls prevent the reinforcing bars from slipping off. It should also be understood that if the reinforcing bars are not yet neatly combed, the reinforcing bars can only fall into the gaps 221 of a few combing structures 22 as one or a few sections of the reinforcing bars. Even if the reinforcing bars of the combing structure 22 fall into the grooves 24, when the reinforcing bars move to the upward chain with the combing structure 22, the reinforcing bars still cannot maintain balance under the overall gravity of the reinforcing bars and will still fall off.

[0106] Furthermore, both the first and second parts of the comb structure 22 include two side plates connected to both sides of the link. The surfaces of the two side plates are perpendicular to the pin of the chain. The first notch 221a penetrates the two side plates of the first part in a direction parallel to the axis of rotation between the links. The second notch 221b penetrates the two side plates of the second part in a direction parallel to the axis of rotation between the links. That is, when the first notch 221a and the second notch 221b are joined together to form a notch 221, the notch 221 also penetrates the side plates located on both sides of the link.

[0107] In this embodiment, an adjusting block 25 is rotatably connected between the two side plates of the first part of the combing structure 22. The rotation axis of the adjusting block 25 is parallel to the axis of the chain pin. When the adjusting block 25 rotates, it can freely screw into or out of the notch 221 from the first notch 221a. When the first notch 221a and the second notch 221b are joined to form the notch 221, the width of the notch 221 for inserting the rebar can be adjusted by controlling the degree to which the adjusting block 25 is screwed into the notch 221. This makes it suitable for combing rebars of different diameters, ensuring that the width of the notch 221 only allows one rebar to be inserted, and ensuring that the rebar combing and feeding device can achieve the function of feeding rebars one by one.

[0108] An adjusting pin 251 is also provided through the side of the adjusting block 25, and the axis of the adjusting pin 251 is parallel to the rotation axis of the adjusting block 25. Both side plates of the first part of the combing structure 22 have clearance holes 26 for the adjusting pin 251 to pass through. The two ends of the adjusting pin 251 pass through the clearance holes 26 of the two side plates respectively and extend outwards from both sides of the first part of the combing structure 22. When the adjusting block 25 rotates, the adjusting pin 251 moves within the clearance holes 26. In this embodiment, the adjusting block 25 has an elongated hole for the adjusting pin 251 to pass through. The length direction of the elongated hole points towards the rotation axis of the adjusting block 25, and the adjusting pin 251 can reciprocate a certain distance within the range of the elongated hole along its length direction.

[0109] Specifically, the adjusting block 25 is integrally formed with a rotating shaft 253 parallel to the length direction of the reinforcing bar. Both ends of the rotating shaft 253 pass through the two side plates of the first part of the combing structure 22 and rotatably engage with the side plates. Both ends of the rotating shaft 253 extend beyond the sides of the first part of the combing structure 22, and a first elastic element 27 is connected between both ends of the rotating shaft 253 and both ends of the adjusting pin 251. The first elastic element 27 is a tension spring with hooks at both ends. One hook of the tension spring is attached to the side of the rotating shaft 253 extending out of the combing structure 22, and the other hook is attached to the side of the adjusting pin 251 extending out of the combing structure 22. Under the action of the tension spring, the adjusting pin 251 always abuts against the wall of the clearance hole 26 near the rotating shaft 253. The wall of the hole that keeps the clearance hole 26 and the adjusting pin 251 in contact is defined as the guide wall 261. In this embodiment, the guide wall 261 is a flat wall surface. A positioning groove 262 is provided at both ends of the guide wall 261. The positioning groove 262 penetrates the comb structure 22 along a direction parallel to the axis of the adjusting pin 251, and the cross-sectional shape of the positioning groove 262 is adapted to the cross-section of the adjusting pin 251. During the rotation of the adjusting block 25, the tension of the spring keeps the adjusting pin 251 against the guide wall 261, and the adjusting pin 251 slides along the guide wall 261 as the adjusting block 25 rotates. In this embodiment, the guide wall 261 is a flat wall surface, and the distance between the edges of the guide wall 261 and the rotation axis of the adjusting block 25 is the same. The distance between the guide wall 261 and the rotation axis of the adjusting block 25 varies at different points. During the sliding of the adjusting pin 251 along the guide wall 261, the adjusting pin 251 also slides relative to the adjusting block 25 along the length of the elongated hole. If the guide wall 261 is an arc-shaped wall surface, and the arc axis of the guide wall 261 coincides with the rotation axis of the adjusting block 25, then when the adjusting block 25 rotates, the adjusting pin 251 will not deviate along the length direction of the elongated hole.

[0110] When the adjusting block 25 rotates and drives the adjusting pin 251 to the position of the positioning groove 262, the tension of the spring causes the adjusting pin 251 to slide into the positioning groove 262. After the adjusting pin 251 slides into the positioning groove 262, the tension of the spring allows the adjusting pin 251 to remain stably in the positioning groove 262, thereby locking the angle of the adjusting block 25 and the width of the notch 221 for inserting the rebar. Then, the rebar sorting and feeding device can be used to sort and feed rebars of the corresponding diameter. Alternatively, the adjusting pin 251 can be actively moved to rotate the adjusting block 25. If the adjusting pin 251 is actively moved to slide and insert into another positioning groove 262, the adjusting block 25 can be locked at another angle, changing the width of the notch 221 for inserting the rebar, and sorting and feeding rebars of another diameter. Therefore, during use, the rebar can be moved into different positioning grooves 262, making it suitable for sorting rebars of different diameters.

[0111] Alternatively, the guide wall 261 can be designed as an arc surface, with its axis located between the guide wall 261 and the rotating shaft 253. When the adjusting pin 251 abuts against the guide wall 261, the tension of the spring on the adjusting pin 251 will cause the adjusting pin 251 to tend to slide towards the adjacent positioning groove 262. However, when the axis of the arc surface of the guide wall 261 is located between the guide wall 261 and the rotating shaft 253, care should be taken to avoid the adjusting pin 251 from moving to a position of force equilibrium during the sliding process. In this case, the adjusting pin 251 will smoothly abut against the guide wall 261 and will be difficult to move under the tension of the spring.

[0112] In this embodiment, two positioning slots 262 are only provided at both ends of the guide wall 261. Therefore, by sliding the adjusting pin 251 into the two positioning slots 262, the adjusting block 25 can be controlled to rotate to two different angles. Correspondingly, the notch 221 also has two width dimensions for inserting the reinforcing bar, which are suitable for reinforcing bars of two different diameters. However, if more positioning slots 262 are provided on the guide wall 261, and the adjusting pin 251 is inserted into each positioning slot 262, the adjusting block 25 can be rotated and positioned to multiple different angles, which is suitable for sorting reinforcing bars of multiple diameters.

[0113] In addition, the first elastic element 27 can also be a compression spring or an elastic sheet, which applies pressure or tension to the adjusting pin 251, causing the adjusting pin 251 to abut against the guide wall 261 or the positioning groove 262. It should be understood that the guide wall 261 can also be selected to avoid the hole 26 from the wall of the rotating shaft 253, and the type and installation position of the first elastic element 27 also need to be adjusted accordingly.

[0114] Furthermore, both ends of the adjusting pin 251 are connected to limiting blocks 252, which are threadedly connected to the adjusting pin 251 for easy assembly and disassembly. In this embodiment, the limiting blocks 252 are cylindrical, and their diameter is larger than that of the adjusting pin 251. When the adjusting pin 251 abuts against the guide wall 261 or the groove wall of the positioning groove 262 under the action of the first elastic member 27, the limiting blocks 252 at both ends of the adjusting pin 251 abut against the edge of the positioning groove 262. This prevents the adjusting pin 251 from shifting along its own axis and avoids it from falling off. In addition, an annular groove is provided on the side of the limiting block 252, and the hook connecting the tension spring and the adjusting pin 251 is hung in the annular groove.

[0115] Furthermore, each support structure 11 is also equipped with an adjustment device for actuating the adjustment pin 251. The adjustment device includes a cam 34 and two levers 3 rotatably connected to the two support plates 111 respectively. The two levers 3 are used to actuate the two ends of the adjustment pin 251. The two levers 3 are respectively installed on the opposite sides of the two support plates 111, and each lever 3 is rotatably engaged with the adjacent support plate 111 via a shaft 32. The support plate 111 has a shaft hole for inserting the shaft 32. The rotation axes of the two levers 3 coincide, and the rotation axes of the levers 3 and the cam 34 are parallel to the rotation axis of the adjustment block 25. A sealing plate is also bolted between the edges of the two support plates 111 of the support structure 11, and the cam 34 is rotatably mounted on the side of the sealing plate. The shafts 32 of the two levers 3 are also connected to a swing structure 33 that cooperates with the cam 34. The swing structure 33 includes a swing rod 331 that abuts against the profile surface of the cam 34 of the swing rod 331, and connecting rods connected to both ends of the swing rod 331. The axis of the swing rod 331 is parallel to the rotation axis of the shaft 32. The swing rod 331 is connected to the shafts 32 of the two levers 3 respectively through two connecting rods. In addition, the connecting rods and the swing rod 331 are located outside the area surrounded by the two support plates 111 and the sealing plate to avoid interfering with the chain movement of the chain conveyor assembly 2.

[0116] Specifically, a rolling bearing 333 is fitted on the side of the swing rod 331. The swing rod 331 abuts against the contour surface of the cam 34 through the side of the rolling bearing 333. When the cam 34 rotates, it can push the swing structure 33 and the two shafts 32 to rotate, thereby driving the two levers 3 to rotate synchronously. In order to make the swing angle of the swing structure 33 accurately correspond to the rotation angle of the cam 34, a second elastic element 332 is also connected between the swing rod 331 and the side of the support plate 111 in this embodiment. The second elastic element 332 pushes / pulls the swing rod 331 to keep the rolling bearing 333 abutting against the contour surface of the cam 34. The second elastic element 332 can be a tension spring, and the tension of the tension spring ensures that the rolling bearing 333 abuts against the contour surface of the cam 34. When the lever 3 rotates to the trajectory of the end of the adjusting pin 251 moving with the chain, the lever 3 can be used to guide the end of the adjusting pin 251 to shift.

[0117] Specifically, one end of the lever 3 is a guide end, and both sides of the guide end are machined with a guide surface 31, which extends along the rotation axis of the lever 3. When the adjusting pin 251 is located in the positioning groove 262 of the guide wall 261, the trajectory of the end of the adjusting pin 251 extending out of the side plate or the limiting block 252 connected to that end as the chain moves is an annular boundary. The two trajectories generated by the adjusting pin 251 as it moves with the chain when it is located in the two positioning grooves 262 are different. Taking the two trajectories of the adjusting pin 251 when it is located in the two positioning grooves 262 as the inner and outer boundaries respectively, the shaft 32 of the lever 3 is located within the range surrounded by the two boundaries. Moreover, the distance between the rotation axis of the lever 3 and the guide end is greater than the straight-line distance between the rotation axis of the lever 3 and any trajectory of the adjusting pin 251. Therefore, when controlling the rotation of the lever 3, the guide end of the lever 3 can rotate through the trajectories on both sides. In actual use, the cam 34 controls the rotation of the lever 3, causing the guide end of the lever 3 to rotate to the trajectory of the adjusting pin 251. During the movement of the chain in the chain conveyor assembly 2, each adjusting pin 251 located in the positioning groove 262 passes the guide end of the lever 3 in sequence. As the chain in the chain conveyor assembly 2 continues to move, the adjusting pin 251 abuts against the guide surface 31 of the lever 3 and slides along the guide surface 31. The lever 3 can then pull the adjusting pin 251 out of the current positioning groove 262 and push it along the guide wall 261 into another positioning groove 262. Since the lever 3 can automatically move each adjusting pin 251 into a positioning groove 262 during the operation of the chain conveyor assembly 2, after modifying the rotation angle of the lever 3, the lever 3 can move all the adjusting pins 251 around the chain into another positioning groove 262 after the chain in the chain conveyor assembly 2 moves one revolution, thus achieving convenient and uniform modification of the rotation angle of the adjusting block 25.

[0118] Specifically, regarding the clearance hole 26 on the side plate, when the side plate moves towards the lever 3 as the chain conveyor assembly 2 moves, the guide wall 261 with the positioning groove 262 in the clearance hole 26 should pass the lever 3 first. This is to ensure that the adjusting pin 251 in the positioning groove 262 can be smoothly pushed out of the positioning groove 262 by the lever 3 when pushed by the lever 3. If the guide wall 261 of the clearance hole 26 passes the lever 3 later than the other side wall of the clearance hole 26, the pushing force of the lever 3 on the adjusting pin 251 may cause the adjusting pin 251 to get stuck in the positioning groove 262 and be difficult to slide out. Therefore, the position of the guide wall 261 and the installation angle of the lever 3 should be reasonably selected, taking the movement state of the chain of the chain conveyor assembly 2 during the process of sorting and feeding the reinforcing bars as the forward rotation state. The position of the guide wall 261 also needs to consider whether the action of pushing the adjusting pin 251 out and into the positioning groove 262 by the lever 3 is achieved in the forward or reverse rotation state of the chain conveyor assembly 2. Figures 3 to 5This indicates that in the chain reversing state, the adjusting pin 251 is moved from one positioning slot 262 to another using the lever 3; for example... Figure 6 The text indicates that when the chain is rotating in the forward direction, the adjusting pin 251 is moved from one positioning slot 262 to another positioning slot 262 by using the lever 3.

[0119] It should also be noted that multiple positioning slots 262 can be provided on the guide wall 261, which are suitable for moving and locking the adjusting pin 251 to different positioning slots 262. However, correspondingly, it is necessary to adjust the angle and position of the lever 3 or replace the lever 3 with one of different specifications and shapes.

[0120] When the chain is rotating forward, it is more convenient to use the lever 3 to move the adjusting pin 251, without needing to control the chain to switch motion states. Along the chain's direction of movement in the forward rotation state, the guide wall 261 is the front side wall of the clearance hole 26. The guide end of the lever 3 is located on the rear side of the lever 3. When the adjusting pin 251 moves close to the lever 3 with the chain conveyor assembly 2, both ends of the adjusting pin 251 directly contact the guide surfaces 31 on the sides of the guide ends of the two levers 3, and are pushed out of the positioning groove 262 by the guide ends of the lever 3. After the adjusting pin 251 is pushed out of the positioning groove 262, it slides relative to the guide surface 31 and slides along the guide wall 261 toward the other positioning groove 262. When the end of the adjusting pin 251 completely disengages from the guide end of the lever 3, the adjusting pin 251 reaches the other positioning groove 262 and is pulled into the positioning groove 262 by the tension spring of the first elastic member 27.

[0121] Furthermore, the cams 34 on each support structure 11 are mounted on the same shaft, which serves as the cam shaft 341. Each cam 34 rotates synchronously with the cam shaft 341. The cam shaft 341 extends along the arrangement direction of the support structures 11 and is rotatably connected to the sealing plates of each support structure 11. When one cam 34 is controlled to rotate, all cams 34 can be driven to rotate synchronously through the cam shaft 341, thereby driving the paddle blocks 3 of each support structure 11 to rotate synchronously. Subsequently, during the synchronous movement of the chain of the chain conveyor assembly 2, the paddle blocks 3 can be used to guide the adjusting pins 251 of a corresponding row of combing structures 22 to slide synchronously out of a certain positioning groove 262 or synchronously into another positioning groove 262.

[0122] Furthermore, since the notch 221 has a certain depth, when combing and feeding thinner diameter steel bars, multiple steel bars may still be embedded in each notch 221, and the steel bars embedded in the notch 221 are arranged along the depth direction of the notch 221. In order to transport the combed steel bars one by one to the processing equipment, each support structure 11 has a push block 15 slidably installed on the side of the support plate 111 for pushing off excess steel bars. The push block 15 is installed next to the path of the upward chain. When the upward chain drives the steel bar to move upward and passes the push block 15, the minimum distance between the push block 15 and the opening of the notch 221 where the steel bar is located is only enough to accommodate one steel bar. The bottom of the push block 15 is also processed with a bevel 151 near the edge of the steel bar. When the combing structure 22 with excess steel bars moves with the chain and passes the push block 15, the excess steel bars abut against the bevel 151 and are pushed by the bevel 151 to slide towards the opening of the notch 221, pushing out the steel bars in the notch 221 one by one until only one steel bar remains in the notch 221. It should be noted that when the combing structure 22 moves with the upward chain, the rear sidewall of the notch 221 is the sidewall of the second notch 221b, and the groove 24 is formed on the sidewall of the second notch 221b; while the front sidewall of the notch 221 is the sidewall of the first notch 221a, and the adjusting block 25 is screwed into or out of the notch 221 from the front sidewall of the first notch 221a. Since the sidewall of the second notch 221b is machined with a groove 24 for positioning the reinforcing bar, the opening position of the groove 24 should be reasonably determined. When the reinforcing bar is pushed out using the push block 15, it should be ensured that the remaining reinforcing bar falls exactly into the groove 24, so that the groove 24 can play a positioning role for the reinforcing bar.

[0123] In this embodiment, when the chain moves the reinforcing bar closer to the push block 15, the chain moves upward in the vertical direction. The push block 15 has two horizontal through slots extending along the side direction perpendicular to the support plate 111. The through slots have a certain length in a horizontal direction parallel to the support plate 111. Bolts pass through the through slots, and the threaded end of the bolts is bolted to the support plate 111 of the support structure 11. Loosening the bolts allows the push block 15 to slide along the length of the through slots. Tightening the bolts again locks the push block 15 in place using the bolt head. Adjusting the position of the push block 15 along the length of the through slots changes the distance between the push block 15 and the opening of the notch 221. This ensures that when feeding reinforcing bars of different diameters, excess reinforcing bars in the notch 221 are pushed off, leaving only one reinforcing bar in the notch 221.

[0124] In addition, a row of support containers 41 for temporarily storing steel bars to be combed is installed on one side of the frame 1. The support containers 41 are located on the side of the upward chain facing away from the downward chain. On the other side of the frame 1, a transfer mechanism for receiving a row of combed steel bars is installed. Each transfer mechanism includes a slide bar 54 and a chain assembly 55 for pushing the steel bars on the slide bar 54 to slide towards the next station. The arrangement direction of the support containers 41 and the transfer mechanism is parallel to the arrangement direction of the support structure 11.

[0125] Specifically, in this embodiment, four support containers 41 are installed, evenly arranged along the arrangement direction of the support structure 11. Each support container 41 is installed in a space between two adjacent support structures 11, with only one support container 41 installed in each adjacent space. A base 4 for supporting the support container 41 is placed in each space. The support container 41 is pivotally connected to the base 4 near the top of the support structure 11, and the axis of rotation of the support container 41 relative to the base 4 is parallel to the arrangement direction of the support structure 11. The support container 41 is an arc-shaped plate with its concave arc surface 42 facing upwards. The axis of the concave arc surface 42 of the arc-shaped plate is parallel to the arrangement direction of the support structure 11. The reinforcing bars to be combed can be placed on the concave arc surface 42 of the support container 41, which provides support for the reinforcing bars. Care should be taken to avoid the ends of the reinforcing bars protruding beyond the ends of the support structure 11 during placement. In addition, a drive cylinder 43 is hinged between the base 4 and the support container 41. By controlling the synchronous extension and retraction of each drive cylinder 43, the support container 41 is pushed / pulled to rotate, thereby pouring the steel bars to be sorted placed in the support container 41 into the unloading area.

[0126] Specifically, an arc-shaped top plate 13 is bolted between the two support plates 111 of the support structure 11 near the top of the support container 41. The top surface of the top plate 13 is an outwardly convex arc surface, and the axis of the arc surface of the top plate 13 is parallel to the arrangement direction of the support structure 11. The pivot axis between the support container 41 and the base 4 coincides with the axis of the top plate 13. When the support container 41 rotates upward around the pivot axis, the steel bars to be combed contained in the arc groove of the support container 41 gradually slide from the edge of the concave arc surface 42 of the support container 41 onto the top plate 13, and then slide from the top plate 13 into the unloading area. During the period when the steel bar combing and feeding device combs and feeds the steel bars to be combed in the support groove 22a, the workers can place another batch of steel bars to be combed in the support container 41 for temporary storage. When it is necessary to replenish the reinforcing bars to be combed in the support trough 22a, the drive cylinder 43 can be used to pull the support container 41 to rotate, and the reinforcing bars to be combed in the support container 41 can be poured into the support trough 22a of the reinforcing bar combing and feeding device, so as to realize continuous reinforcing bar combing operation and reduce the downtime of the reinforcing bar combing and feeding device.

[0127] Furthermore, a mounting bracket 5 is placed on the side of the frame 1 facing away from the base 4, and the slide rods 54 and chain assemblies 55 are both mounted on the mounting bracket 5. Each slide rod 54 and chain assembly 55 is installed in a one-to-one correspondence, with nine slide rods 54 and nine chain assemblies 55 installed. The nine slide rods 54 are arranged along the direction of the chain conveyor assembly 2, and each slide rod 54 is installed between adjacent support structures 11, without interfering with the chain movement of the chain conveyor assembly 2. The slide rods 54 are installed at an angle, with the lower end close to the frame 1 and the higher end extending upwards at an angle away from the frame 1. The axis of the slide rod 54 is perpendicular to the axis of the sprocket of the chain conveyor assembly 2. As the reinforcing bar moves with the chain past the redirecting sprocket 28 at the top of the chain conveyor assembly 2 and slides down through the open notch 221, the lower end of the slide bar 54 receives the reinforcing bar sliding down from the combing structure 22. When the reinforcing bar slides down to the lower end of the slide bar 54, it completely detaches from the movement trajectory of the combing structure 22 of each chain conveyor assembly 2, preventing the reinforcing bar at the lower end of the slide bar 54 from jamming the combing structure 22 and the chain. Along the length of the reinforcing bar, each part of the reinforcing bar rests on each slide bar 54. A limiting piece 541 is also bolted to the lower end of the slide bar 54. The top of the limiting piece 541 is higher than the lower end of the slide bar 54, which can prevent the reinforcing bar from sliding down the slide bar 54. The length direction of the chain assembly 55 is parallel to the axis of the slide bar 54, and the top surface of the chain at the top of the chain assembly 55 is flush with the upper edge of the side of the slide bar 54. When the reinforcing bar falls onto the slide bar 54, the chain at the top of the chain assembly 55 also abuts against the reinforcing bar. By controlling the rotation of the chain assembly 55, the friction between the chain and the reinforcing bar can be used to move the reinforcing bar towards the higher end of the slide bar 54, until it slides off from the higher end of the slide bar 54. During the process of the chain assembly 55 moving the reinforcing bar towards the higher end of the slide bar 54, if there are multiple reinforcing bars on the slide bar 54, the reinforcing bars will separate under their own weight and the friction of the chain assembly 55. Finally, the chain assembly 55 will move the reinforcing bars one by one from the higher end of the slide bar 54 for processing.

[0128] In this embodiment, the sprocket axis of the chain assembly 55 is parallel to the sprocket axis of the chain conveying assembly 2, and one drive sprocket of each chain assembly 55 is mounted on a transmission shaft, which serves as the second transmission shaft 551. The second transmission shaft 551 is rotatably connected to the mounting frame 5 and is parallel to the first transmission shaft 14. A second motor 552 is also mounted on the mounting frame 5. The second motor 552 is connected to the second transmission shaft 551 via a gear reducer, driving each chain assembly 55 to rotate synchronously. The chains of each chain assembly 55 move synchronously, synchronously pushing the steel bars on the slide rod 54 toward the higher end of the slide rod 54.

[0129] Two parallel rods 51 are mounted on the top of the mounting frame 5. The rods 51 are arranged away from the frame 1, and the axes of both rods 51 are parallel to the sprocket axis of the chain conveyor assembly 2. When sorting and conveying the reinforcing bars, to adjust the speed at which the reinforcing bars spread on the slide rod 54 and the resistance to their sliding on the slide rod 54, the angle between the slide rod 54 and the chain assembly 55 can be controlled. In this design, a first adjusting element for adjusting the angle between the slide rod 54 and the chain assembly 55 is installed on the rods 51. The first adjusting element includes two sleeves 511 respectively fitted around the two rods 51. The sleeves 511 can rotate around the axis of the rods 51. A connecting block 512 is fixedly connected to the outer surface of the sleeves 511, and an L-shaped adjusting plate 52 is installed on the connecting block 512. The adjusting plate 52 includes a first plate and a second plate integrally connected but perpendicular to each other. Both the first plate and the second plate have a set of elongated holes, the length directions of which are perpendicular to each other and perpendicular to the axis of the rods 51. Each set of elongated holes includes two parallel elongated holes. The first plate and the second plate are respectively fitted and connected to the connecting block 512 and the mounting part 53. A bolt for fastening to the connecting block 512 passes through the elongated hole of the first plate, and a bolt for fastening to the mounting part 53 passes through the elongated hole of the second plate. The adjusting plate 52 can slide relative to the connecting block 512 and the mounting part 53, and is locked again by bolts after sliding. By rotating the sleeve 511 and controlling the sliding of the adjusting plate 52 relative to the connecting block 512 and the mounting part 53, the position and angle of the mounting part 53 can be adjusted in the vertical plane defined by the slide rod 54, and the position and angle of the slide rod 54 and the chain assembly 55 in the vertical plane can be adjusted.

[0130] Furthermore, guide rods 58 are installed above the slide rods 54 at both ends of the mounting bracket 5. The guide rods 58 are installed in a direction parallel to the slide rods 54, and the distance between the guide rods 58 and the slide rods 54 is only enough to allow one rebar to slide over. During installation, care should be taken to ensure that the guide rods 58 do not cover the lower end of the slide rods 54, so as to prevent the guide rods 58 from obstructing the rebar from falling onto the slide rods 54.

[0131] Since the angle of the slide rod 54 can be adjusted, in order to keep the guide rod 58 parallel to the slide rod 54, and to adjust the distance between the guide rod 58 and the slide rod 54 when changing to different diameter rebars, this solution also includes a second adjusting component on the mounting frame 5 for adjusting the position and angle of the guide rod 58. The second adjusting component includes a bracket bolted to the mounting frame 5, on which two vertical rods 56 are fixedly connected in the vertical direction. Each vertical rod 56 has a first slider 561 slidably mounted in the vertical direction. A horizontal bar 57 passes through the first slider 561 in the horizontal direction. The first slider 561 has holes for the vertical rods 56 and the horizontal bar 57 to pass through. The first slider 561 can rotate relative to the vertical rods 56 and the horizontal bar 57. In addition, two bolts are threaded onto the first slider 561, which are used to lock the horizontal bar 57 and the vertical rod 56 respectively. A second slider 571 is slidably mounted on the crossbar 57 along its own axis. The second slider 571 has a hole for the crossbar 57 and the guide rod 58 to pass through. Two bolts are also provided on the second slider 571 to lock the crossbar 57 and the guide rod 58. The second slider 571 can rotate around the axis of the crossbar 57. By controlling the two first sliders 561 to slide vertically, the guide rod 58 can be rotated around the crossbar 57 to adjust the height and angle of the guide rod 58, ensuring that the distance between the guide rod 58 and the slider 54 is only sufficient to allow one rebar to slide through. It should be noted that the bottom of the second slider 571 should not protrude beyond the lower edge of the side of the guide rod 58 to avoid obstructing the sliding of the rebar between the guide rod 58 and the slider 54. Therefore, in this embodiment, the hole for the guide rod 58 to pass through in the second slider 571 should be located at the bottom of the second slider 571, and the wall of the hole should be in contact with the bottom surface of the second slider 571.

[0132] Additionally, the lower end of the guide rod 58 is bent upwards, creating a larger opening between the lower end of the guide rod 58 and the slide rod 54. This allows the reinforcing bars to slide from the slide rod 54 into the space between the guide rod 58 and the slide rod 54. As the chain of the chain assembly 55 moves, the reinforcing bars located between the guide rod 58 and the slide rod 54 are fed one by one to the higher end of the slide rod 54, until they slide down one by one from the higher end of the slide rod 54, thus achieving the function of feeding the reinforcing bars one by one.

[0133] A sorting method applicable to the above-mentioned rebar sorting and feeding device includes the following steps:

[0134] S1. Place the steel bars to be sorted into the support groove 22a of a chain conveyor assembly 2, and control the chain of the chain conveyor assembly 2 to move synchronously;

[0135] S2. The combing structure 22 constituting the support groove 22a moves continuously with the chain and is replaced one by one, so that the steel bars to be combed in the support groove 22a are constantly turned over;

[0136] S3. The steel bars in the support groove 22a are turned and dispersed by a continuously moving chain to a straight and parallel feeding state with the direction of the support structure 11. When the combing structure 22 and the notch 221 of the combing structure 22 of each chain conveying component 2 move with the chain to the bottom of the support groove 22a, the steel bars to be fed that are above the notch 221 and at the bottom of the support groove 22a fall into the notch 221 of a row of combing structures 22 in the same group.

[0137] S4. The combing structures 22 carrying the reinforcing bars move sequentially to the downlink chain along with the chain, so that the straight reinforcing bars carried by each combing structure 22 slide down onto the slide bar 54 in sequence.

[0138] S5. Each chain assembly 55 operates synchronously, pushing the steel bars on the slide bar 54 to slide along the length of the slide bar 54, and then slide down from one end of the slide bar 54 in sequence.

[0139] Example 2

[0140] Please refer to Figure 11 and Figure 12 The difference between this embodiment and Embodiment 1 is that the first guide segment 121 of the guide plate 12 includes a horizontal segment 121a that guides the chain to move upward along a horizontal trajectory and a transition segment 121b that guides the chain to smoothly change its direction of movement. The lower end of the transition segment 121b is integrally connected to the horizontal segment 121a of the first guide segment 121, and the higher end is integrally connected to the bottom end of the second guide segment 122. For the first guide segment 121 in this embodiment, the guide groove 123 of the horizontal segment 121a is set in the horizontal direction, and the guide groove 123 of the transition segment 121b is arc-shaped. The two ends of the guide groove 123 of the transition segment 121b are smoothly connected to the guide groove 123 of the horizontal segment 121a and the guide groove 123 of the second guide segment 122, respectively, which can guide the chain to smoothly change its direction of movement and move smoothly from the first guide segment 121 of the guide plate 12 to the second guide segment 122. The first guide section 121 of the guide plate 12 is lower than the second guide section 122. When the chain with the combing structure 22 passes through the first guide section 121, it can form a support groove 22a that is lower than the second guide section 122. Due to the existence of the horizontal section 121a, the support groove 22a in this embodiment has a certain length along the length direction of the horizontal section 121a, which can accommodate more steel bars to be combed. Moreover, at the same time, multiple rows of combing structures 22 are located at the bottom of the support groove 22a, which can pick up the steel bars at the bottom of the support groove 22a more efficiently. It is suitable for combing and picking up a large number of steel bars to be combed.

[0141] Furthermore, in this embodiment, the combing structure 22 includes two side plates located on both sides of the chain link, a notch 221 penetrating through the two side plates, an adjusting block 25 rotatably connected between the two side plates, and both side plates are also provided with clearance holes 26 for the adjusting pin 251 to pass through. Compared with Embodiment 1, the combing structure 22 and the notch 221 are both integral, with a simple structure, easy to produce and install, and the problem of the reinforcing bar falling between the two parts of the combing structure 22 as in Embodiment 1 is avoided.

[0142] In addition, the outer periphery of the chain in this embodiment is provided with several receiving structures 23, which are arranged alternately with the combing structures 22, and each combing structure 22 and receiving structure 23 are respectively connected to a chain link. The receiving structure 23 includes two protective plates 231 connected to both sides of the chain link. The two protective plates 231 of the receiving structure 23 are parallel to the two side plates of the combing structure 22. The distance between the opposite sides of the two side plates of the combing structure 22 is defined as the first distance, and the distance between the opposite sides of the two protective plates 231 of the receiving structure 23 is defined as the second distance. The second distance is greater than the first distance. When the chain bends and the adjacent combing structure 22 and receiving structure 23 move closer to each other, the combing structure 22 can be directly screwed between the two protective plates 231 of the receiving structure 23. The side plates of the combing structure 22 and the protective plates 231 of the receiving structure 23 will never come into contact with each other, and will not hinder the rotation of the chain links. Compared with the first embodiment, the chain links in this embodiment can rotate relative to each other with a larger amplitude, the chain moves more flexibly as a whole, and the design requirements for the sprocket diameter and the curvature of the transition section 121b of the guide plate 12 are reduced, which facilitates design and production. Moreover, the design requirements for the overall dimensions of the support structure 11 can be relaxed, making it easier to design and use steel bar sorting and feeding devices of different sizes for factory areas of different sizes, thus making it more applicable.

[0143] Both protective plates 231 have transition plates extending from one end near the chain link. The two transition plates extend toward each other. Both ends of the two transition plates extend toward each other and have connecting plates 232 extending. The two connecting plates 232 extend in a direction parallel to the protective plates 231 and connect to both ends of the chain pin, thereby installing the two protective plates 231 of the receiving structure 23 on both sides of the chain link.

[0144] It should be understood that since the combing structure 22 can be screwed into the two protective plates 231 of the receiving structure 23, the combing structure 22 and the receiving structure 23 can be configured such that when the chain is located in the first guide section 121 of the guide plate 12, a part of the combing structure 22 is always screwed into the two receiving structures 23 of the guide plate 12. Then the steel bars in the support groove 22a cannot fall into the gap between the combing structure 22 and the receiving structure 23, ensuring that the transfer steel bars are picked up only by using the notch 221 of the combing structure 22, and the function of combing and feeding steel bars one by one can be accurately performed.

[0145] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0146] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A rebar sorting and feeding device, characterized in that, The system includes several support structures arranged horizontally, each supporting a portion of the reinforcing steel bar to be sorted along its length. Each support structure includes a chain conveyor assembly for sorting and feeding the reinforcing steel bar and a guide plate for guiding a portion of the chain of the chain conveyor assembly. The chain conveying assembly includes a closed-loop chain and several sprockets that guide the chain to change its direction of movement. The outer periphery of the chain is provided with several combing structures evenly arranged along the circumference of the chain. The combing structure has a notch on the side facing away from the chain for the reinforcing bar to slide in. The notch penetrates the combing structure along the arrangement direction of the supporting structure. The combing structures in each chain conveying assembly are distributed in the same position, and the chains of all chain conveying assemblies move synchronously when combing the reinforcing bar. The rotation axis of the sprocket is parallel to the arrangement direction of the supporting structure. The sprocket at the highest point is a redirecting sprocket. The two chain segments on both sides of the redirecting sprocket are the upward chain and the downward chain, respectively. Along the direction away from the chain, the lower sidewall of the notch of the combing structure of the upward chain is horizontal or inclined upward, and the lower sidewall of the notch of the combing structure of the downward chain is inclined downward. The guide plate includes a first guide section below the bottom of the upward chain. The chain located in the first guide section is smoothly connected to the upward chain. A plurality of combing structures on the outer periphery of the chain within the range of the first guide section form a support groove for supporting the rebar to be combed. The groove wall of the support groove is formed by the side of the aforementioned combing structures facing away from the chain. The combing structures move into or out of the support groove as the chain moves, so as to continuously turn the rebar to be combed supported by the support groove. A row of combing structures parallel to the arrangement direction of the support structure in all chain conveying components is defined as a group. When the chain conveying components turn the rebar in the support groove, the rebar combed to a straight state falls into the gaps of the respective combing structures in the same group.

2. The rebar sorting and feeding device as described in claim 1, characterized in that, The first guide segment is an arc-shaped segment that guides the chain to move along an arc-shaped trajectory. The arc-shaped trajectory is an arc-shaped curve with a concave center. The axes of the arc-shaped trajectories of the chains in each chain conveying assembly coincide with each other and are parallel to the arrangement direction of the support structure.

3. The rebar sorting and feeding device as described in claim 2, characterized in that, The combing structure includes a first part and a second part installed on different links of the chain. The notch includes a first notch in the first part and a second notch in the second part. When the chain moves to the range of the arc trajectory, the first part and the second part fit together to form a complete combing structure, and the first notch and the second notch fit together to form a complete notch. When the chain passes around the redirecting sprocket, the two parts of the comb structure separate, and the notch opens so that the reinforcing bar in the notch can slide out.

4. The rebar sorting and feeding device as described in claim 1, characterized in that, The first guide segment includes a horizontal segment that guides the chain to move along a horizontal trajectory and a transition segment that guides the chain to smoothly change its direction of movement. The chain in the transition segment is located between the chain in the horizontal segment and the bottom end of the ascending chain.

5. The rebar sorting and feeding device as described in claim 1, characterized in that, As the combing structure moves with the chain, the opposing sides of adjacent combing structures come together or separate. When the chain is in the first guide section, the distance between adjacent combing structures is less than the diameter of the reinforcing bar to be combed.

6. The rebar sorting and feeding device as described in claim 1, characterized in that, The combing structure includes two side plates arranged side by side along the direction of the support structure and an adjusting block rotatably connected between the two side plates. The notch of the combing structure passes through the two side plates along the direction of the support structure. The rotation axis of the adjusting block is parallel to the direction of the support structure. The adjusting block is also provided with an elongated hole. The elongated hole passes through the adjusting block along a direction parallel to the rotation axis of the adjusting block. The length direction of the elongated hole is perpendicular to the rotation axis of the adjusting pin. An adjusting pin passes through the elongated hole. The two ends of the adjusting pin pass through the two side plates respectively. Both side plates are provided with clearance holes for the adjustment pin to pass through. The clearance holes have sufficient space for the adjustment pin to move as the adjustment block rotates. The hole wall on one side of the clearance hole serves as a guide wall. The guide wall is provided with at least two positioning grooves for the adjustment pin to slide into. A first elastic element is also connected between the side plate and the adjustment pin to make the adjustment pin press against the guide wall or the positioning groove wall.

7. A rebar sorting and feeding device as described in claim 6, characterized in that, The chain is also provided with receiving structures spaced apart from the combing structure on its outer periphery. Each receiving structure includes two protective plates connected to both sides of the chain link. The distance between the opposing sides of the two protective plates of the combing structure is defined as a first gap, and the distance between the facing sides of the two protective plates of the receiving structure is defined as a second gap. The second gap is greater than the first gap. During chain movement, when the chain bends and the combing structure approaches the adjacent receiving structure, the combing structure screws into the space between the protective plates of the receiving structure. When the chain is within the range of the first guide section: The combing structure is screwed between the two side plates of the combing structure; or There is a gap between the combing structure and the receiving structure along the direction of chain movement, and the gap is smaller than the diameter of the reinforcing bar to be combed.

8. A rebar sorting and feeding device as described in claim 6, characterized in that, The two ends of the adjusting pin extend out of the two side plates and are connected to limit blocks. The two limit blocks abut against the opposite sides of the two side plates.

9. A rebar sorting and feeding device as described in claim 6, characterized in that, The chain conveying assembly is used to sort out the front and rear position relationship when feeding steel bars. The side walls on both sides of the notch are defined as the front side wall and the rear side wall, respectively. The rear side wall of the notch is provided with a groove for the side of the steel bar to slide into. The adjusting block is screwed into or out of the notch from the front side.

10. A rebar sorting and feeding device as described in claim 6, characterized in that, Each of the aforementioned support structures is further provided with an adjustment mechanism adjacent to the chain conveyor assembly. The adjustment mechanism includes a cam rotatably connected to the support structure and two levers. The two levers are arranged side by side on both sides of the chain of the chain conveyor assembly, with their rotation axes coinciding. The rotation axes of both the levers and the cam are parallel to the arrangement direction of the support structure. The two levers are located side by side on both sides of the chain of the chain conveyor assembly. When the combing structure moves with the chain, the two tracks corresponding to the adjusting pins located at both ends of the guide wall serve as the inner and outer boundaries. The rotation axis of the lever is located between the inner and outer boundaries on both sides of the chain. One end of the lever serves as the guide end. The distance between the rotation axis of the lever and the guide end is greater than the straight-line distance between the rotation axis of the lever and any track of the adjusting pin. Both sides of the lever are formed with guide surfaces for guiding the sliding of the adjusting pin. During the movement of the adjusting pin with the chain, the guide surfaces force the adjusting pin to slide towards one end of the guide wall. A swing structure is also fixedly connected between the two levers. The swing structure abuts against the contour surface of the cam.

11. A rebar sorting and feeding device as described in claim 10, characterized in that, The support structure is also connected to a second elastic element for driving the swing structure to rotate toward the cam profile surface, so that the swing structure remains in contact with the cam profile surface.

12. A rebar sorting and feeding device as described in claim 10, characterized in that, When the chain conveying assembly combs and feeds the reinforcing bars, along the moving direction of the chain, the guide wall is the front side wall of the clearance hole, and the guide end of the lever is located behind the rotating axis of the lever.

13. The rebar sorting and feeding device as described in claim 10, characterized in that, Each of the aforementioned support structures is provided with an adjustment mechanism that corresponds to and cooperates with the chain conveyor assembly. The rotation axes of the paddles of each adjustment mechanism coincide, and the cams of each adjustment mechanism are all mounted on the same shaft so that the cams of each adjustment mechanism rotate synchronously and coaxially.

14. The rebar sorting and feeding device as described in claim 1, characterized in that, The support structure also includes two side-by-side support plates, the surfaces of which are perpendicular to the arrangement direction of the support structure. The chain conveyor assembly and the guide plate are both installed between the two side-by-side support plates.

15. A rebar sorting and feeding device as described in claim 14, characterized in that, Each of the support structures includes two guide plates, which are located on both sides of the chain. The two guide plates are fixedly connected to the opposing sides of the two support plates. The guide plates have guide grooves on the sides facing the chain to guide the movement of the chain. The guide grooves pass through both ends of the guide plates along the movement trajectory of the chain. The pin end of the chain protrudes from the side of the chain link and is rotatably connected to a side roller. The side rollers are evenly arranged along the circumference of the chain. The side rollers located on both sides of the chain are respectively inserted into the guide grooves of two guide plates and roll in cooperation with the groove walls.

16. A rebar sorting and feeding device as described in claim 15, characterized in that, The guide plate also includes a second guide section that guides the movement of the upward chain, and the second guide section is fixedly connected to the first guide section.

17. A rebar sorting and feeding device as described in claim 1, characterized in that, The side of the support structure is also connected to a push block, which is located on the path of the reinforcing bar moving with the upward chain. The bottom of the push block is machined with an inclined surface to guide the reinforcing bar in the notch to slide in the direction of the opening of the notch. As the combing structure moves upward with the upward chain and passes the push block, the minimum distance between the push block, the inclined surface and the opening of the notch along the depth direction of the notch of the combing structure is only enough to accommodate one reinforcing bar.

18. A rebar sorting and feeding device as described in claim 17, characterized in that, The push block has at least two parallel elongated slots. The slots pass through bolts for locking the push block. The threaded end of the bolts engages with the threaded support structure. When the combing structure moves upward along with the chain of the chain conveyor assembly and passes the push block, the depth direction of the notch in the combing structure is parallel to the length direction of the slot.

19. A rebar sorting and feeding device as described in claim 1, characterized in that, The chain conveyor assembly also includes a drive sprocket, and the rebar sorting and feeding device also includes a first drive shaft for mounting each drive sprocket and a first motor for driving the first drive shaft to rotate. The drive sprockets of each chain conveyor assembly rotate synchronously with the first drive shaft.

20. A rebar sorting and feeding device as described in claim 1, characterized in that, The area in which the support groove of the entire chain conveyor assembly supports the reinforcing bars is defined as the unloading area. The reinforcing bar sorting and feeding device also includes a row of bases arranged parallel to the support structure. The bases are rotatably connected to a support container for temporarily storing the reinforcing bars to be sorted and a cylinder for driving the support container to rotate. The rotation axis of the support container is parallel to the arrangement direction of the support structure. When the cylinder drives the support container to rotate until the opening of the support container is tilted downwards, the opening of the support container faces the unloading area. The cylinder body and piston rod of the cylinder are respectively hinged to the base and the support container.

21. A rebar sorting and feeding device as described in claim 1, characterized in that, In the row of support structures, the opposite sides of the support structures at both ends are connected with end plates to prevent the reinforcing bars to be combed from slipping off from both ends.

22. The rebar sorting and feeding device as described in claim 1, characterized in that, The rebar sorting and feeding device also includes a slide bar adjacent to the redirecting sprocket for receiving rebar and a chain assembly for pushing the rebar on the slide bar to slide. Several slide bars are arranged along the direction of the support structure. Each slide bar is parallel to the others and staggered from the support structure. The chain assembly is arranged in a one-to-one correspondence with the slide bar. The chain of the chain assembly includes a section of conveyor chain with its top surface flush with the corresponding slide bar.

23. A rebar sorting and feeding device as described in claim 22, characterized in that, The slide bar is inclined, with one end of the slide bar supporting the reinforcing bar being lower than the other end, and the end of the slide bar supporting the reinforcing bar is also connected to an upwardly protruding stop block.

24. A rebar sorting and feeding device as described in claim 22, characterized in that, The rebar sorting and feeding device also includes a second drive shaft and a second motor for driving the second drive shaft to rotate. The drive sprockets of each chain assembly are all mounted on the second drive shaft and rotate synchronously with the second drive shaft.

25. A rebar sorting and feeding device as described in claim 22, characterized in that, The rebar sorting and feeding device also includes a guide rod located above the slide bar. The guide rod is parallel to the slide bar, and the distance between the guide rod and the slide bar is only enough to accommodate one rebar.

26. A rebar sorting and feeding device as described in claim 25, characterized in that, The rebar sorting and feeding device also includes a mounting frame for installing the chain assembly and the slide bar. The chain assembly and the slide bar are movably connected to the mounting frame. The mounting frame is provided with a first adjusting component for adjusting the position and angle of the chain assembly and the slide bar, and a second adjusting component for adjusting the position and angle of the guide rod.

27. A method for processing reinforcing bars using the steel bar processing and feeding device according to any one of claims 1 to 26, characterized in that, Includes the following steps: S1. Place the steel bars to be combed into the support groove of a chain conveyor assembly, and control the chain of the chain conveyor assembly to move synchronously; S2. The combing structure constituting the support groove moves continuously with the chain and is replaced one by one, causing the steel bars to be combed in the support groove to be constantly turned over; S3. The continuously moving chain is used to turn and disperse the steel bars in the support groove to a straight and parallel feeding state. When the combing structure and the gap of the combing structure of each chain conveying component move to the bottom of the support groove with the chain, the steel bars to be fed that are above the gap and at the bottom of the support groove fall into the gap of a row of combing structures in the same group. S4. The combing structures carrying the reinforcing bars in each column move sequentially to the downward chain along with the chain, so that the straight reinforcing bars carried by each combing structure slide down in sequence.

28. A method for processing reinforcing bars using the steel bar processing and feeding device according to any one of claims 22 to 26, characterized in that, Includes the following steps: S1. Place the steel bars to be combed into the support groove of a chain conveyor assembly, and control the chain of the chain conveyor assembly to move synchronously; S2. The combing structure constituting the support groove moves continuously with the chain and is replaced one by one, causing the steel bars to be combed in the support groove to be constantly turned over; S3. The continuously moving chain is used to turn and disperse the steel bars in the support groove to a straight and parallel feeding state. When the combing structure and the gap of the combing structure of each chain conveying component move to the bottom of the support groove with the chain, the steel bars to be fed that are above the gap and at the bottom of the support groove fall into the gap of a row of combing structures in the same group. S4. The combing structures carrying the reinforcing bars in each column move sequentially to the downlink chain, so that the straight reinforcing bars carried by each combing structure slide sequentially onto the slide bar; S5. Each of the chain assemblies operates synchronously, pushing the steel bars on the slide bar to slide along the length of the slide bar, and then sliding down sequentially from one end of the slide bar.

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