Automatic feeding system for steel bar straightening

Abstract

The application provides a steel bar straightening automatic feeding system, which comprises a supporting mechanism, a feeding mechanism, a receiving mechanism and a feeding mechanism. The supporting mechanism is suitable for supporting the steel bar to be straightened. The feeding mechanism is suitable for lifting and conveying the steel bar supported on the supporting mechanism to the receiving mechanism. The receiving mechanism is suitable for temporarily stopping and blocking the steel bar conveyed by the feeding mechanism. The feeding mechanism is suitable for conveying the temporarily stopped and blocked steel bar to the feeding channel of the straightening machine for straightening treatment. The application can feed the peeled silver bright steel bar to the straightening machine. Workers only need to lift the peeled silver bright steel bar and place it on the supporting plate at the top of the supporting support. The labor intensity of workers is small, the labor cost is low, and the feeding efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of steel bar processing technology, and more specifically to an automatic feeding system for straightening steel bars. Background Technology

[0002] Metal bar peeling technology is a highly efficient processing technique, primarily used for processing the outer skin of oblong metal materials with diameters ranging from 10 to 30 millimeters. It can quickly and efficiently remove defects such as decarburization layers and cracks from the bar surface, achieving high precision and surface roughness. Its advantages are particularly pronounced for processing longer materials, increasing efficiency by several to ten times compared to conventional processes. It is especially suitable for the production of bright materials and silver-bright steel, and is widely used in machinery manufacturing, vehicle production, bearing production, and spring manufacturing. Currently, silver-bright steel bars produced after peeling by existing metal bar peeling machines require straightening. The inventors of this application, through on-site observation, discovered that the current straightening process for silver-bright steel bars mainly involves manually loading the peeled bars into the straightening machine. However, this loading method suffers from high labor intensity and high labor costs, thus necessitating an improvement to this loading method. Summary of the Invention

[0003] When straightening existing bright steel bars, the peeled bright steel bars are mainly fed into the straightening machine manually. However, this feeding method has technical problems such as high labor intensity and high labor cost for workers. This invention provides an automatic feeding system for steel bar straightening.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] An automatic feeding system for straightening steel bars includes a supporting mechanism, a conveying mechanism, a receiving mechanism, and a feeding mechanism; wherein,

[0006] The material support mechanism includes a material support bracket. The top of the material support bracket has multiple material support plates that are spaced apart and tilted forward. The bottom of the material support plate is fixedly connected to a support rod. Multiple baffle plates are fixedly sleeved on the support rod. A baffle plate is arranged on the left side of each material support plate. The vertical distance between the top of the baffle plate and the surface of the material support plate is greater than the diameter of the steel rod.

[0007] The material transfer mechanism includes multiple material transfer plates arranged at intervals. A material transfer plate is arranged on the left side of each baffle plate. The upper side of each material transfer plate includes a first forward-tilted edge and a second forward-tilted edge. The height of the first forward-tilted edge is higher than the height of the second forward-tilted edge, that is, the first forward-tilted edge and the second forward-tilted edge form a stepped upper side. The front-to-back distance between the rear end of the first forward-tilted edge and the rear end of the baffle plate is greater than 1 times and less than 2 times the diameter of the steel bar. A baffle block is provided at the front end of the first forward-tilted edge. The height of the baffle block is greater than the diameter of the steel bar. A telescopic cylinder is fixedly installed below the material transfer plate. The piston rod of the telescopic cylinder is vertically upward and its top end is hinged to the front part of the lower side of the material transfer plate. The rear side of each material transfer plate is fixedly sleeved with a connecting rod. The connecting rod passes through multiple support plates and is fitted with them with a gap.

[0008] The receiving mechanism includes a receiving bracket, the top of which has a fixedly connected horizontal support frame and a front baffle. Multiple forward-inclined support arms are fixedly spaced on the surface of the horizontal support frame. Each support arm has an arc-shaped material blocking component fixedly at its front. The rear end of each support arm extends to the left side of a material transfer plate. The front-to-back distance between the rear end of the support arm and the rear end of the material blocking block is greater than the diameter of the steel bar.

[0009] The feeding mechanism includes a feeding bracket, the top of which is fitted into the hollow frame of the horizontal support frame. Multiple sets of feeding supports are fixedly fixed at intervals on the top of the feeding bracket. A set of feeding supports is arranged corresponding to the right side of each support arm. A feeding shaft is rotatably connected to each set of feeding supports. A conveying wheel is fixedly sleeved at the rear of the feeding shaft. An annular groove is provided in the middle of the conveying wheel. A smooth transition section with gradually decreasing diameter is formed between the two ends of the conveying wheel and the central annular groove. The conveying surface height of the conveying wheel is lower than the blocking height of the arc-shaped material blocking component. A drive motor is fixedly fixed to the bottom surface of the feeding bracket. The motor shaft of the drive motor is connected to the leftmost feeding shaft. Adjacent feeding shafts are sequentially connected. Two support cylinders are fixedly installed below the feeding bracket, located at the lower left and lower right of the feeding bracket, respectively. The piston rods of the support cylinders are vertically upward and their top ends are fixedly connected to the bottom of the feeding bracket. The drive motor, support cylinders, and telescopic cylinders are electrically connected to a PLC controller.

[0010] Compared with the prior art, the automatic feeding system for straightening steel bars provided by this invention, in use, firstly, the PLC controller controls the telescopic cylinder to start, and the piston rod of the telescopic cylinder drives the front part of the conveyor plate to move upward. At this time, the rear end of the first forward-tilted edge on the upper side of the conveyor plate also moves upward. When the rear end of the first forward-tilted edge on the upper side of the conveyor plate moves upward and contacts the foremost steel bar supported by the support plate and blocked by the baffle plate, the piston rod of the telescopic cylinder continues to drive the front part of the conveyor plate to move upward. At this time, the foremost steel bar will detach from the surface of the support plate and roll along the first forward-tilted edge to the front end until it is stopped and blocked by the baffle block at the front end of the first forward-tilted edge. At the same time, during the process of the steel bar rolling along the first forward-tilted edge to the front end until it is stopped and blocked by the baffle block, the conveyor plate also drives the steel bar to move up to above the rear end of the support arm. Then, the piston rod of the telescopic cylinder drives the front part of the conveyor plate to move downward. The steel bars on the conveyor plate also move downwards. When the steel bars move downwards and contact the rear end of the support arm, they will detach from the first forward-tilting edge of the conveyor plate. Then, the piston rod of the telescopic cylinder continues to drive the front part of the conveyor plate downwards to the initial position. At the same time, the steel bars also roll from the rear end of the support arm to the front end until they are stopped by the arc-shaped material stopper. Then, the PLC controller controls the support cylinder to start. The piston rod of the support cylinder drives the feeding bracket to move upwards. When the annular groove in the middle of the conveyor wheel contacts the steel bars that are stopped by the arc-shaped material stopper, it continues to move upwards until the steel bars completely detach from the arc-shaped material stopper and are supported by the annular groove in the middle of the conveyor wheel, and then stop moving upwards. After that, the PLC controller controls the drive motor to start. The motor shaft of the drive motor drives all the feeding support shafts to rotate, thereby conveying the steel bars to the feed channel of the straightener for straightening through the rotation of the conveyor wheel that is fixedly connected to the feeding support shaft. Therefore, this application enables the peeled bright steel bars to be fed into the straightening machine. Workers only need to lift the peeled bright steel bars onto the support plate at the top of the support bracket. This reduces the labor intensity for workers, lowers labor costs, and increases feeding efficiency.

[0011] Furthermore, the surfaces of the plurality of support plates are provided with rubber pads.

[0012] Furthermore, among the plurality of baffles, the leftmost and rightmost baffles are connected to the reinforcing plate fixed to the bottom of the corresponding support plate by a tie rod.

[0013] Furthermore, the connecting edge between the rear end of the first forward-tilted edge and the front end of the second forward-tilted edge is a forward-tilted oblique edge.

[0014] Furthermore, a drive gear and a driven gear are fixed at the front of the feeding support shaft, and a drive chain meshes with the driven gear of the leftmost feeding support shaft and the motor shaft of the drive motor. A transmission chain meshes with the drive gear and the driven gear between adjacent feeding support shafts. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the automatic feeding system for straightening steel bars provided by the present invention.

[0016] Figure 2 yes Figure 1 A magnified structural diagram of point A in the middle.

[0017] In the diagram, 1. Material support mechanism; 11. Material support bracket; 12. Material support plate; 13. Support rod; 14. Baffle plate; 15. Rubber pad; 16. Tie rod; 17. Reinforcing plate; 2. Material transfer mechanism; 21. Material transfer plate; 211. First forward-tilting edge; 212. Second forward-tilting edge; 22. Baffle block; 23. Piston rod; 24. Connecting rod; 3. Material receiving mechanism; 31. Horizontal support frame; 32. Front baffle plate; 33. Support arm; 34. Arc-shaped material blocking component; 4. Material feeding mechanism; 41. Material feeding bracket; 42. Material feeding support; 43. Material feeding support shaft; 44. Conveyor wheel; 441. Circular groove. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below with reference to specific illustrations.

[0019] In the description of this invention, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the 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, and therefore should not be construed as a limitation of the invention. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] Please refer to Figure 1 and Figure 2 As shown, the present invention provides an automatic feeding system for straightening steel bars, including a supporting mechanism 1, a conveying mechanism 2, a receiving mechanism 3, and a feeding mechanism 4; wherein,

[0022] The material support mechanism 1 includes a material support bracket 11. The top of the material support bracket 11 has a plurality of material support plates 12 that are spaced apart and tilted forward. The bottom of the material support plate 12 is fixedly connected to a support rod 13. A plurality of baffle plates 14 are fixedly sleeved on the support rod 13. A baffle plate 14 is arranged on the left side of each material support plate 12. The vertical distance between the top of the baffle plate 14 and the surface of the material support plate 12 is greater than the diameter of the steel rod. Thus, the steel rods placed on the surface of the material support plate 12 in sequence can be blocked by the baffle plate 14.

[0023] The material transfer mechanism 2 includes a plurality of material transfer plates 21 arranged at intervals. One material transfer plate 21 is arranged on the left side of each baffle plate 14. The upper side of each material transfer plate 21 includes a first forward-inclined edge 211 and a second forward-inclined edge 212. The height of the first forward-inclined edge 211 is higher than the height of the second forward-inclined edge 212, forming a stepped upper side. The front-to-back distance between the rear end of the first forward-inclined edge 211 and the rear end of the baffle plate 14 is greater than 1 times and less than 2 times the diameter of the steel bar. Therefore, when the height of the rear end of the first forward-inclined edge 211 is higher than the height of the rear end of the baffle plate 14, only one steel bar can be lifted. A baffle block is integrally formed at the front end of the first forward-inclined edge 211. 22. The height of the baffle block 22 is greater than the diameter of the steel bar, so that the steel bar on the surface of the first forward inclined edge 211 can be blocked by the baffle block 22. A telescopic cylinder is fixedly installed below the material transfer plate 21. Preferably, a telescopic cylinder is fixedly installed below every other material transfer plate 21 (equivalent to only one telescopic cylinder for every two material transfer plates 21). The piston rod 23 of the telescopic cylinder is vertically upward and its top end is hinged to the front part of the lower side of the material transfer plate 21. The rear side of each material transfer plate 21 is fixedly sleeved with a connecting rod 24. The connecting rod 24 is inserted on multiple support plates 12 and is fitted with them with a clearance. So that the material transfer plate 21 can rotate around the support plate 12 through the connecting rod 24 under the action of the piston rod 23 of the telescopic cylinder.

[0024] The receiving mechanism 3 includes a receiving bracket. The top of the receiving bracket has a horizontal support frame 31 and a front baffle 32 fixedly connected. Multiple forward-inclined support arms 33 are fixedly spaced on the surface of the horizontal support frame 31. Each support arm 33 has an arc-shaped material blocking member 34 fixedly provided at its front. The rear end of each support arm 33 extends to the left side of a material transfer plate 21, that is, the rear end of each support arm 33 extends towards the rear end of a material transfer plate 21. The front-to-back distance between the rear end of the support arm 33 and the rear end of the baffle block 22 is greater than the diameter of the steel rod. Thus, when the steel rod is detached from the first forward-inclined edge 211 of the material transfer plate 21, the support arm 33 can smoothly catch the steel rod.

[0025] The feeding mechanism 4 includes a feeding bracket 41, the top of which is fitted into the hollow frame of the horizontal support frame 31. Multiple sets of feeding supports 42 are fixedly fixed at intervals on the top of the feeding bracket 41. A set of feeding supports 42 is arranged correspondingly to the right side of each support arm 33. A feeding support shaft 43 is rotatably connected to each set of feeding supports 42. A conveying wheel 44 is fixedly sleeved at the rear of the feeding support shaft 43. An annular groove 441 is provided in the middle of the conveying wheel 44. A smooth transition section with gradually decreasing diameter is formed between the two ends of the conveying wheel 44 and the annular groove 441. The conveying surface height of the conveying wheel 44 is lower than the blocking height of the arc-shaped material stopper 34. Therefore, steel bars detached from the first forward-leaning edge of the conveyor plate can first roll to the arc-shaped material stopper 34 for interception and pause, so that they can be smoothly conveyed by the conveying wheel 44 subsequently. The bottom surface of the feeding bracket 41 is fixed. A drive motor is provided, and the motor shaft of the drive motor is connected to the leftmost feeding support shaft 43. Adjacent feeding support shafts 43 are sequentially connected. Two support cylinders are fixedly installed below the feeding bracket 41. The two support cylinders are located at the lower left and lower right of the feeding bracket 41, respectively. The piston rod of the support cylinder is vertically upward and its top is fixedly connected to the bottom of the feeding bracket 41. The drive motor, support cylinders, and telescopic cylinders are electrically connected to a PLC controller. The PLC controller can be an existing Siemens S7-200 series programmable controller. Its specific structure and control method are well known to those skilled in the art. There are no special requirements for the specific setting position of the PLC controller, as long as it can maintain an electrical connection with the drive motor, support cylinders, and telescopic cylinders and realize control. Specifically, it can be set on the material support bracket 11.

[0026] Compared with the prior art, the automatic feeding system for straightening steel bars provided by this invention, in use, firstly, the PLC controller controls the telescopic cylinder to start, and the piston rod of the telescopic cylinder drives the front part of the conveyor plate to move upward. At this time, the rear end of the first forward-tilted edge on the upper side of the conveyor plate also moves upward. When the rear end of the first forward-tilted edge on the upper side of the conveyor plate moves upward and contacts the foremost steel bar supported by the support plate and blocked by the baffle plate, the piston rod of the telescopic cylinder continues to drive the front part of the conveyor plate to move upward. At this time, the foremost steel bar will detach from the surface of the support plate and roll along the first forward-tilted edge to the front end until it is stopped and blocked by the baffle block at the front end of the first forward-tilted edge. At the same time, during the process of the steel bar rolling along the first forward-tilted edge to the front end until it is stopped and blocked by the baffle block, the conveyor plate also drives the steel bar to move up to above the rear end of the support arm. Then, the piston rod of the telescopic cylinder drives the front part of the conveyor plate to move downward. The steel bars on the conveyor plate also move downwards. When the steel bars move downwards and contact the rear end of the support arm, they will detach from the first forward-tilting edge of the conveyor plate. Then, the piston rod of the telescopic cylinder continues to drive the front part of the conveyor plate downwards to the initial position. At the same time, the steel bars also roll from the rear end of the support arm to the front end until they are stopped by the arc-shaped material stopper. Then, the PLC controller controls the support cylinder to start. The piston rod of the support cylinder drives the feeding bracket to move upwards. When the annular groove in the middle of the conveyor wheel contacts the steel bars that are stopped by the arc-shaped material stopper, it continues to move upwards until the steel bars completely detach from the arc-shaped material stopper and are supported by the annular groove in the middle of the conveyor wheel, and then stop moving upwards. After that, the PLC controller controls the drive motor to start. The motor shaft of the drive motor drives all the feeding support shafts to rotate, thereby conveying the steel bars to the feed channel of the straightener for straightening through the rotation of the conveyor wheel that is fixedly connected to the feeding support shaft. Therefore, this application enables the peeled bright steel bars to be fed into the straightening machine. Workers only need to lift the peeled bright steel bars onto the support plate at the top of the support bracket. This reduces the labor intensity for workers, lowers labor costs, and increases feeding efficiency.

[0027] For a specific embodiment, please refer to Figure 1 As shown, the surfaces of the plurality of support plates 12 are provided with rubber pads 15, thereby reducing wear on the surface of the steel bar when it is placed on the rubber pads 15 on the surface of the support plates 12.

[0028] For a specific embodiment, please refer to Figure 1 As shown, among the plurality of baffle plates 14, the leftmost and rightmost baffle plates 14 are connected to the reinforcing plate 17 fixed to the bottom of the corresponding support plate 12 via a tie rod 16, thereby improving the reliability of the baffle plate 14 in blocking the steel bars.

[0029] For a specific embodiment, please refer to Figure 1As shown, the connecting edge between the rear end of the first forward-tilted edge 211 and the front end of the second forward-tilted edge 212 is a forward-tilted side. Therefore, after the first steel bar is lifted and carried away by the first forward-tilted edge 211, the steel bars behind can immediately roll forward a little, thereby ensuring that the steel bars behind can continue to be stably arranged.

[0030] In a specific embodiment, the front part of the feeding support shaft 43 is fixed with a driving gear and a driven gear. The driven gear of the leftmost feeding support shaft 43 is meshed with a drive chain on the motor shaft of the drive motor. The driving gear and driven gear between adjacent feeding support shafts 43 are meshed with a transmission chain, thereby realizing the sequential transmission connection between adjacent feeding support shafts 43.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An automatic feeding system for straightening steel bars, characterized in that, It includes a material support mechanism, a material transfer mechanism, a material receiving mechanism, and a material loading mechanism; among which, The material support mechanism includes a material support bracket. The top of the material support bracket has multiple material support plates that are spaced apart and tilted forward. The bottom of the material support plate is fixedly connected to a support rod. Multiple baffle plates are fixedly sleeved on the support rod. A baffle plate is arranged on the left side of each material support plate. The vertical distance between the top of the baffle plate and the surface of the material support plate is greater than the diameter of the steel rod. The material transfer mechanism includes multiple material transfer plates arranged at intervals. A material transfer plate is arranged on the left side of each baffle plate. The upper side of each material transfer plate includes a first forward-tilted edge and a second forward-tilted edge. The height of the first forward-tilted edge is higher than the height of the second forward-tilted edge, that is, the first forward-tilted edge and the second forward-tilted edge form a stepped upper side. The front-to-back distance between the rear end of the first forward-tilted edge and the rear end of the baffle plate is greater than 1 times and less than 2 times the diameter of the steel bar. A baffle block is provided at the front end of the first forward-tilted edge. The height of the baffle block is greater than the diameter of the steel bar. A telescopic cylinder is fixedly installed below the material transfer plate. The piston rod of the telescopic cylinder is vertically upward and its top end is hinged to the front part of the lower side of the material transfer plate. The rear side of each material transfer plate is fixedly sleeved with a connecting rod. The connecting rod passes through multiple support plates and is fitted with them with a gap. The receiving mechanism includes a receiving bracket, the top of which has a fixedly connected horizontal support frame and a front baffle. Multiple forward-inclined support arms are fixedly spaced on the surface of the horizontal support frame. Each support arm has an arc-shaped material blocking component fixedly at its front. The rear end of each support arm extends to the left side of a material transfer plate. The front-to-back distance between the rear end of the support arm and the rear end of the material blocking block is greater than the diameter of the steel bar. The feeding mechanism includes a feeding bracket, the top of which is fitted into the hollow frame of the horizontal support frame. Multiple sets of feeding supports are fixedly fixed at intervals on the top of the feeding bracket. A set of feeding supports is arranged corresponding to the right side of each support arm. A feeding shaft is rotatably connected to each set of feeding supports. A conveying wheel is fixedly sleeved at the rear of the feeding shaft. An annular groove is provided in the middle of the conveying wheel. A smooth transition section with gradually decreasing diameter is formed between the two ends of the conveying wheel and the central annular groove. The conveying surface height of the conveying wheel is lower than the blocking height of the arc-shaped material blocking component. A drive motor is fixedly fixed to the bottom surface of the feeding bracket. The motor shaft of the drive motor is connected to the leftmost feeding shaft. Adjacent feeding shafts are sequentially connected. Two support cylinders are fixedly installed below the feeding bracket, located at the lower left and lower right of the feeding bracket, respectively. The piston rods of the support cylinders are vertically upward and their top ends are fixedly connected to the bottom of the feeding bracket. The drive motor, support cylinders, and telescopic cylinders are electrically connected to a PLC controller.

2. The automatic feeding system for straightening steel bars according to claim 1, characterized in that, The surfaces of the multiple support plates are provided with rubber pads.

3. The automatic feeding system for steel bar straightening according to claim 1, characterized in that, Among the multiple baffles, the leftmost and rightmost baffles are connected to the reinforcing plate fixed to the bottom of the corresponding support plate by a tie rod.

4. The automatic feeding system for straightening steel bars according to claim 1, characterized in that, The connecting edge between the rear end of the first forward-tilted edge and the front end of the second forward-tilted edge is a forward-tilted side.

5. The automatic feeding system for steel bar straightening according to claim 1, characterized in that, The front part of the feeding support shaft is fixed with a driving gear and a driven gear. The driven gear of the leftmost feeding support shaft is meshed with a drive chain on the motor shaft of the drive motor. The driving gear and driven gear between adjacent feeding support shafts are meshed with a transmission chain.

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