Feeding mechanism in round steel straightening production process and positioning method thereof

Abstract

The invention discloses a feeding mechanism in the round steel straightening production process and a positioning method of the feeding mechanism, and relates to the technical field of straightening workpiece conveying, the feeding mechanism comprises a first vertical plate, a bottom connecting rod and a second vertical plate, the two ends of the bottom connecting rod are fixedly connected with the first vertical plate and the second vertical plate respectively, and the second vertical plate is fixedly connected to a straightening machine; a collaborative feeding chain is formed through the material storage slope, the follow-up feeding assembly and the crank rocker feeding assembly, full-automatic and continuous operation of round steel can be achieved in all stages of arrangement, material taking, transferring and pushing, the follow-up feeding assembly and a crank rocker mechanism have a mechanical linkage relation, the mechanical linkage relation between the follow-up feeding assembly and the crank rocker mechanism is achieved, and therefore the round steel can be automatically and continuously conveyed. The synchronous action can be realized after the driving motor drives the reduction gear, so that the next round steel can be automatically extracted in each material pushing cycle, the stability and efficiency of the feeding rhythm are improved, pause and non-uniformity caused by manual intervention are avoided, and the overall efficiency of straightening production is obviously improved.

Description

Technical Field

[0001] This invention relates to the field of workpiece conveying technology for straightening, and in particular to a feeding mechanism and its positioning method in the production process of straightening round steel. Background Technology

[0002] Round steel bars are prone to bending and twisting deformations during production, transportation, and stacking. Without straightening, these deformations can affect the accuracy of subsequent processing and assembly quality. Bending round steel bars can experience misalignment, runout, and stress concentration during cutting, turning, welding, or forming, leading to increased processing errors, deteriorated surface quality, and even equipment damage. Straightening restores the linearity of the round steel bars, improves geometric accuracy, and ensures their stability and reliability in machining, structural manufacturing, and automated feeding.

[0003] In the current round steel straightening production process, it is mostly done manually to put the round steel bars into the straightening machine one by one. The feeding efficiency is low and the cycle is unstable. Manual feeding is prone to causing the round steel bars to deviate in posture when entering the straightening machine, affecting concentricity and causing a decline in straightening quality. Some automatic feeding structures can only achieve simple pushing and cannot complete the arrangement, temporary storage and directional conveying of round steel bars one by one. They also lack precise guidance for the ends of the round steel bars, resulting in jamming, eccentricity and uneven feeding, making it difficult to meet the needs of continuous and efficient straightening operations. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the existing round steel straightening production process, which relies heavily on manual feeding of round steel bars one by one into the straightening machine. This results in low feeding efficiency and unstable cycle time. Manual feeding can easily cause the round steel bars to deviate in posture when entering the straightening machine, affecting concentricity and causing a decline in straightening quality. Some automatic feeding structures can only achieve simple pushing and cannot complete the arrangement, temporary storage and directional conveying of round steel bars one by one. They also lack precise guidance for the ends of the round steel bars, leading to jamming, eccentricity and uneven feeding, making it difficult to meet the requirements of continuous and efficient straightening operations. Therefore, this invention proposes a feeding mechanism and its positioning method in the round steel straightening production process.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A feeding mechanism in the production process of straightening round steel includes a first vertical plate, a bottom connecting rod, and a second vertical plate. The first vertical plate and the second vertical plate are respectively fixedly connected to both ends of the bottom connecting rod. The first vertical plate, the bottom connecting rod, and the second vertical plate form a feeding mechanism frame. The second vertical plate is fixedly connected to the straightening machine. The top of the second vertical plate is fixedly connected to a load-bearing folding plate, which is used to temporarily store a single round steel bar; The top of the first vertical plate is fixedly connected to a storage slope, which is used to arrange and temporarily store multiple round steel bars. The bottom of the storage slope is lower than the top of the load-bearing folding plate. The second vertical plate is fixedly connected to a guide frame on one side of the load-bearing folding plate. A crank-rocker feeding assembly is provided on the guide frame. The crank-rocker feeding assembly feeds a single round steel bar from the top of the load-bearing folding plate into the feed inlet of the straightening machine. The storage slope is provided with a follow-up feeding component between the load-bearing folding plate. The follow-up feeding component follows the movement of the crank-rocker feeding component and the follow-up feeding component moves with the crank-rocker feeding mechanism to transport the single round steel bar on the storage slope to the load-bearing folding plate. The second vertical plate is fixedly connected to a mounting folding rod on the side near the straightening machine. One end of the mounting folding rod is fixedly connected to a tapered cylinder. The narrow section of the tapered cylinder is provided with a variable diameter guide assembly, which concentrically guides one end of the round bar to the feed port of the straightening machine.

[0006] Optionally, the crank rocker feeding assembly includes a push plate, a driven rocker arm, a reduction gear, a drive gear, a drive motor, and a driven column. The drive motor is fixedly connected to the second vertical plate, and the drive gear is fixedly connected to the output end of the drive motor. The reduction gear is stably meshed with the outer wall of the drive gear. The reduction gear is rotatably connected to the second vertical plate, and a drive column is fixedly connected to the side of the reduction gear. One end of the driven rocker arm is rotatably connected to the second vertical plate.

[0007] Optionally, a bottom guide groove and a top guide groove are sequentially provided on the side of the rocker arm, the drive column extends into the bottom guide groove, a horizontal T-groove is provided on the side of the guide frame, an edge sealing rod is fixedly connected to the end of the guide frame by bolts, a T-shaped rod is movably inserted into the horizontal T-groove, the T-shaped rod is fixedly connected to the side of the push plate, a driven column is fixedly connected to the side of the push plate, and the driven column extends into the top guide groove.

[0008] Optionally, the follow-up feeding assembly includes a feeding plate, an extension vertical plate, a force-bearing plate, a force-applying vertical plate, and a lifting column. The force-applying vertical plate is fixedly connected to the bottom of the pushing folding plate, the force-bearing plate is fixedly connected to the side of the extension vertical plate, and guide light columns are symmetrically and movably inserted into the bottom of the force-bearing plate. The guide light columns are fixedly connected to the top of the U-shaped frame, and the bottom end of the U-shaped frame is fixedly connected to the bottom connecting rod.

[0009] Optionally, a feeding plate is fixedly connected to the top of the extending vertical plate, and an inclined groove is opened on the top of the feeding plate. A lifting column is fixedly connected to the bottom side of the force-applying vertical plate. A bottom horizontal surface, an inclined surface, and a top horizontal surface are opened sequentially at the bottom of the force-bearing plate. The horizontal height of the bottom horizontal surface is lower than the horizontal height of the top horizontal surface. The lifting column extends into the bottom of the force-bearing plate.

[0010] Optionally, the variable diameter guide assembly includes an inner ring, a mounting ring, and a guide arm. The narrow section of the tapered cylinder is fixedly connected to the mounting ring, and the inner ring is sleeved inside the mounting ring. The sidewall of the mounting ring has a circular array of transverse grooves.

[0011] Optionally, the mounting ring end face is provided with a mounting arc groove, a locking bolt is movably inserted into the mounting arc groove, the end of the locking bolt is threaded into the edge cross post, and one end of the guide arm is rotatably connected to the mounting ring end face.

[0012] Optionally, the inner ring outer wall is arranged in a circular array and fixedly connected with edge horizontal columns, the diameter of which is the same as the width of the transverse groove.

[0013] Optionally, a central column is fixedly connected to the outer wall of the guide arm, the central column is rotatably connected to the inner ring, and the end of the guide arm away from the central column is cylindrical.

[0014] A positioning method in the production process of straightening round steel bars includes the following steps: S1, the follow-up feeding component is controlled by the crank rocker feeding component, takes a single round steel from the bottom of the storage slope, and feeds the single round steel into the top of the carrying baffle plate. The V-groove set on the top of the carrying baffle plate performs preliminary positioning of the single round steel. S2, the crank-rocker feeding assembly feeds the single round steel bar at the top of the load-bearing plate into the feed port of the straightener. During this period, the end of the single round steel bar will pass through the diameter-changing guide assembly, which will finally position the single round steel bar and concentrically feed it into the feed port of the straightener.

[0015] Compared with the prior art, the present invention has the following advantages: 1. This invention forms a collaborative feeding chain through a storage slope, a follow-up feeding component, and a crank-rocker feeding component, enabling fully automated and continuous operation of round steel bars in all stages of arrangement, picking, transfer, and pushing. The follow-up feeding component and the crank-rocker mechanism are mechanically linked, achieving synchronized action after the active motor drives the reduction gear. This ensures that the next round steel bar is automatically picked up in each pushing cycle, improving the stability and efficiency of the feeding cycle, avoiding pauses and unevenness caused by manual intervention, and significantly improving the overall efficiency of straightening production.

[0016] 2. This invention incorporates a V-groove on the loading plate to initially limit the movement of the round steel bar, and a conical cylinder and a variable-diameter guide assembly are installed before the straightening machine inlet to achieve two-stage calibration and positioning of the round steel bar before it enters the straightening machine. During the pushing process, the round steel bar's posture is first adjusted by the V-groove, and then the variable-diameter guide assembly ensures concentric guidance at the ends, effectively avoiding problems such as jamming, eccentricity, and feeding vibration. This structure ensures that the round steel bar always enters the straightening machine along a stable trajectory that meets the straightening requirements, improving straightening accuracy and equipment operational reliability.

[0017] 3. The crank-rocker feeding assembly of the present invention has typical non-uniform speed motion characteristics, which makes the speed of the pushing plate slower at the beginning of the feeding stage, so as to make smooth contact with the round steel and avoid instantaneous impact; the speed increases in the middle pushing stage, which speeds up the efficiency of conveying the round steel from the carrying plate forward; the speed decreases again when it approaches the straightener inlet at the end, so that the round steel can enter the variable diameter guide assembly and the feed port in a buffered state. This speed distribution effectively reduces deviation and jumping, ensuring that the round steel completes concentric feeding smoothly and reliably. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the invention and its connection with the straightening machine.

[0019] Figure 2 for Figure 1 Another perspective structural diagram.

[0020] Figure 3 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 4 This is a schematic diagram of the overall disassembly crank-rocker feeding mechanism of the present invention.

[0022] Figure 5 This is a structural diagram of the U-shaped frame and its connecting parts.

[0023] Figure 6 for Figure 3 A schematic diagram of the structure after removing the first vertical plate.

[0024] Figure 7 This is a schematic diagram of the structure of the crank rocker feed assembly and the guide frame.

[0025] Figure 8 for Figure 7 Another perspective structural diagram.

[0026] Figure 9 for Figure 8 A schematic diagram of the semi-exploded structure of the guide frame.

[0027] Figure 10 This is a schematic diagram of the crank-rocker feeding assembly.

[0028] Figure 11 This is a structural schematic diagram of the conical cylinder and its connecting parts.

[0029] Figure 12 This is a schematic diagram of the variable diameter guide assembly.

[0030] In the diagram: 1. Straightening machine; 2. First vertical plate; 3. Bottom connecting rod; 4. Second vertical plate; 5. Material storage slope; 51. Diagonal brace plate; 6. Drive motor; 61. Drive gear; 7. Protective folding plate; 8. Guide frame; 81. Edge sealing rod; 82. Horizontal T-slot; 9. Load-bearing folding plate; 91. V-groove; 10. Force plate; 100. Bottom horizontal surface; 101. Inclined surface; 102. Top horizontal surface; 11. Feeding plate; 110. Inclined groove; 12. Extension vertical plate; 121. Guide light column; 1 3. U-shaped frame; 14. Driven rocker arm; 141. Bottom guide groove; 142. Top guide groove; 15. Reduction gear; 16. Drive column; 17. Pushing folding plate; 171. T-shaped rod; 172. Driven column; 18. Force-applying vertical plate; 181. Lifting column; 19. Mounting folding rod; 20. Conical cylinder; 21. Mounting ring; 210. Horizontal movement groove; 211. Mounting arc groove; 22. Guide arm; 23. Intermediate column; 24. Inner ring; 241. Edge horizontal column; 242. Locking bolt. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0032] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0033] Reference Figures 1-12 A feeding mechanism and its positioning method in the production process of straightening round steel bars include a first vertical plate 2 and a second vertical plate 4 fixedly welded to both ends of a bottom connecting rod 3. The first vertical plate 2, the bottom connecting rod 3, and the second vertical plate 4 form a feeding mechanism frame. The second vertical plate 4 is fixedly connected to the housing of the straightening machine 1 by bolts. The straightening machine is a mature round steel bar straightening equipment in the prior art, so it is not disclosed in this application. A load-bearing folding plate 9 is fixedly welded to the top of the second vertical plate 4. The load-bearing folding plate 9 is used to temporarily store a single round steel bar. A storage slope 5 is fixedly welded to the top of the first vertical plate 2. The storage slope 5 is used to arrange and temporarily store multiple round steel bars. In order to improve the load-bearing stability of the storage slope 5, a diagonal bracing plate 51 is fixedly welded to the bottom of the storage slope 5. The other end of the diagonal bracing plate 51 is fixedly welded to the side of the second vertical plate 4.

[0034] The inclined brace 51, the storage slope 5, and the first vertical plate 2 form a triangular structure, which enables the storage slope 5 to obtain a reliable force transmission path when bearing multiple round steel bars. The inclined brace 51 effectively disperses the downward pressure and lateral force generated by the storage slope 5 to the direction of the first vertical plate 2 and the bottom connecting rod 3, preventing the storage slope 5 from sinking, shaking, or deforming under long-term load conditions. The triangular stable structure not only improves the overall bending resistance of the storage slope 5, but also keeps the arrangement of the round steel bars in a stable state, thereby providing a reliable geometric basis for the material picking action of the follow-up feeding component, ensuring the continuity and stability of the feeding process. In addition, in order to reduce weight, a hollow groove is milled in the middle of the inclined brace 51.

[0035] The second vertical plate 4 is fixedly welded to one side of the load-bearing plate 9 with a guide frame 8. A crank-rocker feeding assembly is set on the guide frame 8. The crank-rocker feeding assembly feeds a single round steel bar from the top of the load-bearing plate 9 into the feed inlet of the straightening machine 1. The crank-rocker feeding assembly includes a pushing plate 17, a driven rocker arm 14, a reduction gear 15, a driving gear 61, a driving motor 6, and a driven column 172. The housing of the driving motor 6 is fixedly connected to the second vertical plate 4 with bolts. The output end of the driving motor 6 passes through the second vertical plate 4 and is fixedly connected to the driving gear 61 with a coupling. The outer wall of the driving gear 61 is stably meshed with the reduction gear 15. The reduction gear 15 is rotatably connected to the second vertical plate 4 with a pin shaft. The outer tooth surface of the driving gear 61 meshes with the outer tooth surface of the reduction gear 15. The meshing area has a stable meshing clearance, so that the high-speed rotation output by the driving motor 6 is decelerated and torque increased after being transmitted by the meshing of the driving gear and the reduction gear, thereby providing more suitable speed and torque conditions for subsequent feeding operations.

[0036] A drive column 16 is fixedly welded to the side of the reduction gear 15. The drive column 16 is fixed at a non-central position on the end face of the reduction gear 15. One end of the rocker arm 14 is rotatably connected to the second vertical plate 4 by a pin. A bottom guide groove 141 and a top guide groove 142 are sequentially opened on the side of the rocker arm 14. The drive column 16 extends into the bottom guide groove 141. The drive column 16 is eccentrically installed so that the reduction gear 15 can output a periodic pushing stroke during rotation, thereby providing a reliable driving force for the swing of the driven rocker arm. When the reduction gear 15 rotates, the drive column 16 slides along its contour in the bottom guide groove 141, causing the driven rocker arm 14 to reciprocate around the pin. The swing angle is limited by the eccentricity of the drive column 16 and the structure of the bottom guide groove 141.

[0037] The guide frame 8 has a horizontal T-slot 82 on its side. The end of the guide frame 8 is fixedly connected to an edge sealing rod 81 by bolts. A T-shaped rod 171 is movably inserted into the horizontal T-slot 82. The T-shaped rod 171 is fixedly welded to the side of the push plate 17. A driven post 172 is fixedly welded to the side of the push plate 17. The driven post 172 extends into the top guide groove 142 and can provide a stable limiting and guiding effect for the internal T-shaped rod 171. Therefore, the push plate 17, which is integrally fixedly connected to the T-shaped rod 171, can move stably in the horizontal direction. The end of the guide frame 8 is fixedly connected to the edge sealing rod 81 by bolts. The edge sealing rod 81 blocks the open end of the horizontal T-slot 82 to prevent the internal sliding component from disengaging from the horizontal T-slot 82 during high-frequency reciprocating operation.

[0038] A follow-up feeding assembly is provided between the storage slope 5 and the carrying folding plate 9. There is a gap between the bottom end of the storage slope 5 and the vertical section of the carrying folding plate 9 to accommodate the overall arrangement of the follow-up feeding assembly, so that the follow-up feeding assembly can achieve reliable reciprocating motion within a limited space. The follow-up feeding assembly follows the crank-rocker feeding assembly. The follow-up feeding assembly, along with the crank-rocker feeding mechanism, transports the single round steel bar on the storage slope 5 to the carrying folding plate 9. The follow-up feeding assembly includes a feeding plate 11, an extension vertical plate 12, a force-bearing plate 10, a force-applying vertical plate 18, and a lifting column 181. The force-applying vertical plate 18 is fixedly welded to the bottom of the pushing folding plate 17. The force-applying vertical plate 18 passes through the horizontal groove of the guide frame 8. The force-bearing plate 10 is fixedly welded to the side of the extension vertical plate 12. By pushing the reciprocating motion of the folding plate 17, a direct thrust is applied to the follow-up feeding assembly. The bottom of the force-bearing plate 10 is symmetrically and movably inserted with guide light columns 121. The outer wall of the guide light column 121 is polished into a smooth surface. The force-bearing plate 10 is provided with a smooth cavity at the insertion position of the guide light column 121. The guide light column 121 is fixedly welded to the top of the U-shaped frame 13. The bottom end of the U-shaped frame 13 is fixedly connected to the bottom connecting rod 3 with bolts to form a rigid support. This allows the guide light column 121 to provide a stable linear guiding effect for the extension vertical plate 12 during the operation of the follow-up feeding assembly, and prevents the feeding plate 11 from swaying in the feeding trajectory.

[0039] In addition, the vertical height of the bottom of the storage slope 5 is lower than the top height of the load-bearing folding plate 9, forming a material rising path from low to high. This allows the round steel to naturally transition onto the load-bearing folding plate 9 under the push of the follow-up feeding component. The length of the load-bearing folding plate 9 is greater than the length of the storage slope 5, so that when the round steel is pushed onto the load-bearing folding plate 9, there is enough space to ensure that a single round steel is stably placed and will not slip due to inertia or insufficient space. This provides a reliable material picking base for the subsequent crank rocker feeding action.

[0040] A feeding plate 11 is fixedly welded to the top of the extension vertical plate 12. An inclined groove 110 is opened on the top of the feeding plate 11. A lifting column 181 is fixedly connected to the bottom side of the force-applying vertical plate 18. The lifting column 181, as a vertical force-applying component, can apply a local lifting force to the bottom of the force plate 10 under the drive of the pushing folding plate 17, thereby realizing the lifting-reset linkage action of the follow-up feeding component. The bottom of the force plate 10 is provided with a bottom horizontal surface 100, an inclined surface 101, and a top horizontal surface 102 in sequence. The horizontal height of the bottom horizontal surface 100 is lower than the horizontal height of the top horizontal surface 102. The lifting column 181 extends into the bottom of the force plate 10.

[0041] The three-section structure enables the load-bearing plate 10 to achieve a graded lifting effect under the pushing action of the lifting column 181. When the lifting column 181 moves upward and enters the area of ​​the top horizontal surface 102, the feeding plate 11 is at the lowest end. When the lifting column continues to move upward to the inclined surface 101, the load-bearing plate 10 gradually increases the lifting amplitude under the guidance of the inclined surface until the top of the lifting column 181 reaches the bottom horizontal surface 100, at which point the load-bearing plate 10 reaches the maximum lifting height, thus achieving the purpose of effectively lifting the feeding plate 11.

[0042] The lifting column 181 always extends into the graded surface structure at the bottom of the force plate 10, so that the follow-up feeding assembly can simultaneously obtain a combined action of horizontal propulsion and vertical lifting under the drive of the crank rocker feeding assembly, thereby realizing the smooth picking up and reliable transition of round steel, and ensuring the smooth transfer of round steel from the storage slope to the load-bearing plate.

[0043] The second vertical plate 4 is fixedly connected to the side of the straightener 1 with a mounting folding rod 19. One end of the mounting folding rod 19 is fixedly connected to a conical cylinder 20. The narrow section of the conical cylinder 20 is provided with a variable diameter guide assembly, which is used to concentrically guide one end of the round bar to the feed port of the straightener 1, ensuring that the round bar maintains its central position during the process of entering the straightener, thereby improving the feeding accuracy and straightening quality.

[0044] The variable diameter guide assembly includes an inner ring 24, a mounting ring 21, and a guide arm 22. The narrow section of the tapered cylinder 20 is fixedly welded with the mounting ring 21, and the inner ring 24 is sleeved inside the mounting ring 21. The side wall of the mounting ring 21 has a circular array of transverse grooves 210, which are used to accommodate and adjust the edge transverse column 241 to realize the adjustable linkage between the guide arm 22 and the inner ring 24. The end face of the mounting ring 21 has a mounting arc groove 211, and a locking bolt 242 is movably inserted into the mounting arc groove 211. The end of the locking bolt 242 is screwed into the edge transverse column 241 to lock the inner ring 24 or adjust the angle of the guide arm 22.

[0045] One end of the guide arm 22 is rotatably connected to the end face of the mounting ring 21 by a pin, and the end away from the intermediate column 23 is cylindrical, which is used to contact the round bar and complete the guiding function. The outer wall of the inner ring 24 is fixedly welded with an edge horizontal column 241 in a circular array. The diameter of the edge horizontal column 241 is the same as the width of the transverse groove 210, so as to achieve a precise fit between the guide arm 22 and the inner ring 24. The outer wall of the guide arm 22 is fixedly welded with an intermediate column 23, which is rotatably connected to the inner ring 24 by a bearing, forming an adjustable rotation support structure. This allows the guide arm 22 to rotate freely when the round bar enters the feed port of the straightener, while maintaining the concentric guidance of the round bar, thereby improving the feeding stability and the safety of the device.

[0046] The specific implementation steps and principles of the present invention are as follows: In the initial state, according to actual needs, manually loosen the locking bolt 242, hold one of the edge horizontal columns 241, and drive the inner ring 24 to rotate around the mounting ring 21. The inner ring 24 drives the three guide arms 22 to rotate through multiple intermediate columns 23. The heads of the three guide arms 22 form an opening of appropriate diameter. Multiple round steel bars are neatly arranged on the top of the storage slope 5. When the cycle starts, push the folding plate 17 to the nearest distance of the variable diameter guide assembly. At this time, the lifting column 181 is at the bottom of the top horizontal surface 102. The feeding plate 11 retracts into the gap between the bottom of the storage slope 5 and the side of the load-bearing folding plate 9. The top of the feeding plate 11 buffers a single round steel bar.

[0047] The active motor 6 is started, which drives the active gear 61 to rotate. The reduction gear 15 cooperates with the active gear 61 to obtain a lower speed. The drive column 16 at the non-center position of the end face of the active gear 61 drives the driven rocker arm 14 to swing. The driven rocker arm 14 drives the driven column 172 to move laterally, pushing the folding plate 17 back to the initial section under the limiting guidance of the T-shaped rod 171 and the horizontal T-slot. When the folding plate 17 has passed one end of the storage slope 5, the lifting column 181 moves from the top horizontal surface 102 and the inclined surface 101 to the bottom horizontal surface 100. The lifting column 181 lifts the integrated structure of the feeding plate 11, the force plate 10 and the extension vertical plate 12 to move upward. The feeding plate 11 drives the single round steel to move upward to the set height. When the lowest end of the inclined groove 110 of the feeding plate 11 exceeds the top height of the load-bearing folding plate 9, the single round steel will be released to the top of the load-bearing folding plate 9 because the top of the feeding plate 11 is the inclined groove 110.

[0048] When the active motor 6 rotates continuously, the drive column 16 at the non-center position of the end face of the active gear 61 drives the rocker arm 14 to swing, pushing the folding plate 17 to drive one end of the round steel to move faster and then slower, so that one end of the round steel passes through the inner cavity of the inner ring 24 and through the gap formed by the ends of the three guide arms 22, and finally the round steel enters the feed port of the straightening machine 1.

[0049] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A feeding mechanism in the production process of straightening round steel bars, comprising a first vertical plate, a bottom connecting rod, and a second vertical plate, characterized in that, The bottom connecting rod is fixedly connected to a first vertical plate and a second vertical plate at both ends. The first vertical plate, the bottom connecting rod, and the second vertical plate form a feeding mechanism frame. The second vertical plate is fixedly connected to the straightening machine. The top of the second vertical plate is fixedly connected to a load-bearing folding plate, which is used to temporarily store a single round steel bar; The top of the first vertical plate is fixedly connected to a storage slope, which is used to arrange and temporarily store multiple round steel bars. The bottom of the storage slope is lower than the top of the load-bearing folding plate. The second vertical plate is fixedly connected to a guide frame on one side of the load-bearing folding plate. A crank-rocker feeding assembly is provided on the guide frame. The crank-rocker feeding assembly feeds a single round steel bar from the top of the load-bearing folding plate into the feed inlet of the straightening machine. The storage slope is provided with a follow-up feeding component between the load-bearing folding plate. The follow-up feeding component follows the movement of the crank-rocker feeding component and the follow-up feeding component moves with the crank-rocker feeding mechanism to transport the single round steel bar on the storage slope to the load-bearing folding plate. The second vertical plate is fixedly connected to a mounting folding rod on the side near the straightening machine. One end of the mounting folding rod is fixedly connected to a tapered cylinder. The narrow section of the tapered cylinder is provided with a variable diameter guide assembly, which concentrically guides one end of the round bar to the feed port of the straightening machine.

2. The feeding mechanism in the round steel straightening production process according to claim 1, characterized in that, The crank-rocker feeding assembly includes a push plate, a driven rocker arm, a reduction gear, a drive gear, a drive motor, and a driven column. The drive motor is fixedly connected to the second vertical plate, and the drive gear is fixedly connected to the output end of the drive motor. The reduction gear is stably meshed with the outer wall of the drive gear. The reduction gear is rotatably connected to the second vertical plate, and a drive column is fixedly connected to the side of the reduction gear. One end of the driven rocker arm is rotatably connected to the second vertical plate.

3. The feeding mechanism in the round steel straightening production process according to claim 2, characterized in that, The rocker arm has a bottom guide groove and a top guide groove sequentially formed on its side. The drive column extends into the bottom guide groove. The guide frame has a horizontal T-groove on its side. An edge sealing rod is fixedly connected to the end of the guide frame with bolts. A T-shaped rod is movably inserted into the horizontal T-groove. The T-shaped rod is fixedly connected to the side of the push plate. A driven column is fixedly connected to the side of the push plate. The driven column extends into the top guide groove.

4. The feeding mechanism in the round steel straightening production process according to claim 2, characterized in that, The follow-up feeding assembly includes a feeding plate, an extension vertical plate, a force-bearing plate, a force-applying vertical plate, and a lifting column. The force-applying vertical plate is fixedly connected to the bottom of the pushing folding plate, the force-bearing plate is fixedly connected to the side of the extension vertical plate, and guide light columns are symmetrically and movably inserted into the bottom of the force-bearing plate. The guide light columns are fixedly connected to the top of the U-shaped frame, and the bottom end of the U-shaped frame is fixedly connected to the bottom connecting rod.

5. The feeding mechanism in the round steel straightening production process according to claim 4, characterized in that, A feeding plate is fixedly connected to the top of the extended vertical plate. An inclined groove is opened on the top of the feeding plate. A lifting column is fixedly connected to the bottom side of the force-applying vertical plate. A bottom horizontal surface, an inclined surface, and a top horizontal surface are opened in sequence at the bottom of the force-bearing plate. The horizontal height of the bottom horizontal surface is lower than that of the top horizontal surface. The lifting column extends into the bottom of the force-bearing plate.

6. The feeding mechanism in the round steel straightening production process according to claim 1, characterized in that, The variable diameter guide assembly includes an inner ring, a mounting ring, and a guide arm. The narrow section of the tapered cylinder is fixedly connected to the mounting ring, and the inner ring is sleeved inside the mounting ring. The side wall of the mounting ring has a circular array of transverse grooves.

7. The feeding mechanism in the round steel straightening production process according to claim 6, characterized in that, The mounting ring end face is provided with a mounting arc groove, a locking bolt is movably inserted into the mounting arc groove, the end of the locking bolt is threaded into the edge cross post, and one end of the guide arm is rotatably connected to the mounting ring end face.

8. The feeding mechanism in the round steel straightening production process according to claim 6, characterized in that, The inner ring has a circular array on its outer wall and is fixedly connected with edge horizontal columns, the diameter of which is the same as the width of the horizontal moving groove.

9. The feeding mechanism in the round steel straightening production process according to claim 7, characterized in that, A central column is fixedly connected to the outer wall of the guide arm, and the central column is rotatably connected to the inner ring. The end of the guide arm away from the central column is cylindrical.

10. A positioning method in the production process of straightening round steel bars, used in the feeding mechanism of the production process of straightening round steel bars as described in any one of claims 1-9, characterized in that, Includes the following steps: S1, the follow-up feeding component is controlled by the crank rocker feeding component, takes a single round steel from the bottom of the storage slope, and feeds the single round steel into the top of the carrying baffle plate. The V-groove set on the top of the carrying baffle plate performs preliminary positioning of the single round steel. S2, the crank-rocker feeding assembly feeds the single round steel bar at the top of the load-bearing plate into the feed port of the straightener. During this period, the end of the single round steel bar will pass through the diameter-changing guide assembly, which will finally position the single round steel bar and concentrically feed it into the feed port of the straightener.

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