Bending and straightening all-in-one machine for steel bar machining

Abstract

The invention relates to a bending and straightening all-in-one machine for reinforcing steel bar machining, which comprises a base, a machine body is arranged on the base, two wheel discs capable of freely rotating are arranged on the machine body, and the two wheel discs are arranged up and down; the adjusting wheel is arranged between the two wheel discs in a position-adjustable mode, and by adjusting the position of the adjusting wheel, the distance between the adjusting wheel and the wheel discs is made to be matched with the diameter of the reinforcing steel bar; the straightening wheels are arranged on the two sides of the two wheel discs and can rotate freely, the straightening wheels are arranged in two rows, the distance between the two rows of straightening wheels is matched with the diameter of the reinforcing steel bar, and a first channel allowing the reinforcing steel bar to penetrate through is formed between the two rows of straightening wheels; the fourth motor is arranged in the machine body and drives the wheel disc to rotate; the discharging mechanism is fixedly mounted at the top of the base, and the steel bars are wound on the discharging mechanism; and the bending machine is arranged at the side part of the straightening wheel and is far away from the discharging mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to an all-in-one bending and straightening machine for steel bar processing. Background Art

[0002] Steel bars are widely used in the construction industry as the skeleton of concrete to improve the strength of building concrete. Traditionally, the steel bars that play the role of skeleton are called stirrups. They are made of a round high-strength steel bar folded into a polygon, circle or special shape, with the two ends connected together by relative hooks. They maintain their original strength, and the overall strength is several times that of ordinary steel bars.

[0003] After the production of steel bars is completed, they are generally coiled together to form a steel bar reel for easy transportation. This winding will make the steel bar bent in an arc shape. Therefore, the steel bar needs to be straightened before being stirruped to ensure effective stirruping of the steel bar. At present, in order to improve the above work efficiency, a steel bar bending and straightening machine has been produced on the market, which is equipped with the functions of steel bar straightening and stirruping. It conveys one end of the coiled steel bar to the input end of the steel bar bending and straightening machine, and then conveys and straightens it through a straightening mechanism to reduce the arc stress during winding, and then stirrups it through a bending machine to achieve the desired steel bar shape.

[0004] However, it is found in use that the traditional steel bar bending and straightening machine does not have a matching steel bar reel releasing device. The feeding condition of the steel bar also affects the effect and efficiency of its straightening. At present, when the steel bar reel is released, it is basically placed directly on the ground or directly on a bracket with a support shaft. When it is placed directly on the ground, when the steel bar is released, as the steel bar straightening equipment is transported, the steel bar will be released in a twisted shape, such as Figure 1 As shown, the twisted steel bar enters the adjustment mechanism. Since the straightening mechanism is generally composed of two layers of rotatable wheels, the straightening of the steel bar is achieved by applying force in the upper and lower directions. However, when the steel bar enters the straightening mechanism in a twisted shape, it is difficult for the straightening mechanism to apply good reverse pressure in the bending direction, which leads to poor straightening effect. As a result, the steel bar still has bending stress when entering the stirrup part, so that the steel bar behind the stirrup cannot meet the use requirements well.

[0005] In addition, if placed directly on a bracket with a support shaft, such as Figure 2As shown, this method can basically determine the release direction of the steel bar. However, as is known to all, when the steel bar is bent, applying force to it in the opposite direction can better straighten it, thus producing a mechanism that can straighten the curve. The structural position of the curve straightening mechanism for applying force to the steel bar in the opposite direction is fixed, but since the release direction of the steel bar in the wound state is different, the bending direction of the steel bar transported to the straightening mechanism is uncertain, which leads to the uncertainty of the force direction of the curve straightening mechanism. Therefore, requirements are created for the placement direction of the steel bar reel, thereby increasing the labor intensity of the operator. Summary of the invention

[0006] The purpose of the present invention is to overcome the defects of the prior art and provide a bending and straightening machine for steel bar processing. According to the bending direction of the steel bar, the position of the adjusting wheel is adjusted so that the adjusting wheel is close to the upper or lower wheel disc, thereby adapting to the bending direction of the steel bar, and the two wheel discs arranged upper and lower are rotated to reversely press the steel bars in the conveying process in combination with their bending direction to improve the straightening effect. Compared with traditional straightening wheels, it can better achieve the straightening effect and avoid the rebound of the steel bar. In terms of operation, the operator does not need to select the placement direction of the steel bar reel, and the steel bar straightening and bending operation can be completed by pushing it into the material discharge frame. There is no need to manually lift the steel bar reel to a high support shaft, which saves manpower.

[0007] The technical solution to achieve the above purpose is a bending and straightening machine for steel bar processing, comprising:

[0008] A base, on which a body is arranged, on which two freely rotatable wheels are arranged, the two wheels being arranged up and down;

[0009] An adjusting wheel is arranged between the two wheel discs and is position-adjustable, and the position of the adjusting wheel is adjusted so that the distance between the adjusting wheel and the wheel discs is matched with the diameter of the steel bar;

[0010] A plurality of straightening wheels are arranged on both sides of the two wheel discs and can rotate freely, the plurality of straightening wheels are arranged in two rows, the spacing between the two rows of straightening wheels is adapted to the diameter of the steel bar, and a first channel for the steel bar to pass through is formed between the two rows of straightening wheels;

[0011] A fourth motor is disposed in the body, and the fourth motor drives the wheel to rotate;

[0012] a feeding mechanism fixedly mounted on the top of the base, the steel bar being wound around the feeding mechanism; and

[0013] A bending machine is arranged on the side of the straightening wheel and away from the material discharge mechanism.

[0014] Furthermore, the discharging mechanism comprises:

[0015] A support frame disposed on the top of the base;

[0016] A rotating tube rotatably arranged on the supporting frame;

[0017] A plurality of bidirectional screws are arranged outside the rotating rod, and a rotatable first curved rod is arranged between the bidirectional screws and the rotating tube;

[0018] A second bent rod is rotatably arranged on the bidirectional screw rod, and an arc plate is arranged at one end of the second bent rod away from the bidirectional screw rod, and the steel bars are wound around a plurality of the arc plates.

[0019] Furthermore, a screw plate is threadedly connected to the bidirectional screw rod, and the first curved rod and the second curved rod are rotatably provided at the end of the screw plate;

[0020] A slide groove is formed at the end of the bidirectional screw, a slide rod is slidably arranged in the slide groove, and a portion of the slide rod extends outside the bidirectional screw to form a slide section;

[0021] A U-shaped rod is fixedly installed at the end of the sliding section, and two ends of the U-shaped rod are respectively fixedly connected to the first curved rod and the second curved rod;

[0022] The outer sleeve of the sliding section is provided with a spring.

[0023] Furthermore, the rotating tube is fixedly mounted with a rotating ring, and the rotating ring is formed with a plurality of annular grooves;

[0024] A pulley is fixedly mounted on the bidirectional screw, and a belt is sleeved between the pulley and the annular groove at the corresponding position;

[0025] A support tube is disposed outside the rotating tube. The support tube is disposed at the end of the rotating ring. The first curved rod is disposed on the support tube.

[0026] Furthermore, two support tubes are provided, and a plurality of slides are slidably provided on two opposite sides of the two support tubes, and the slides are provided with tensioning wheels corresponding to the belts.

[0027] Furthermore, a connecting rod is provided between the two support tubes.

[0028] Furthermore, a discharge frame is provided at one end of the rotating tube away from the support frame, and an opening is formed in the discharge frame corresponding to the position of the rotating tube. A pusher is provided in the discharge frame, and the steel bars placed in the discharge frame are pushed toward the opening by the pusher.

[0029] Furthermore, a loading swing arm is arranged between the material discharge frame and the rotating tube, and the loading swing arm is arranged obliquely on the material discharge frame and the rotating tube. The top elevation of the loading swing arm arranged at one end of the material discharge frame is higher than the top elevation of the loading swing arm arranged at the rotating tube.

[0030] Furthermore, a guide plate is provided on the inner wall of the material discharging frame.

[0031] Furthermore, an electric cylinder is provided in the machine body, and the electric cylinder drives the adjusting wheel to move toward the wheel disc.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] 1. Through the two wheels set up above and below, the steel bars in the conveying process are reversely pressed and straightened according to their bending direction to improve the straightening effect. Compared with the traditional straightening wheel, it can achieve a better straightening effect and avoid the rebound of steel bars.

[0034] 2. Through the discharge mechanism, the operator can arrange multiple steel reels in any direction in the discharge mechanism, and can load them and transport them to the rotating tube through the loading mechanism. The arc plate on the rotating tube is used to expand and expand the steel reel to provide stable support. No matter the steel bars on the steel reel reel are released from the upper side or the lower side, under the action of the wheel and the adjusting wheel, they can be reversely pressed and straightened according to the bending direction of the steel bars. It has stronger adaptability and does not require operators to place the steel reels, thereby reducing labor intensity.

[0035] 3. By improving the placement of the steel bar reel, the problem of the steel bar being in a twisted shape or the release direction needing to be pre-adjusted in the prior art is greatly avoided. In terms of operation, the operator does not need to select the placement direction of the steel bar reel. The steel bar straightening and bending operation can be completed by pushing it into the material discharge frame. There is no need to manually lift the steel bar reel to a high support shaft, which saves manpower.

[0036] 4. By improving the existing straightening and bending machine, an integrated matching design is carried out at its feeding position, which can reduce labor and the straightening error caused by manual operation, improve the degree of automation and improve the effect and efficiency of steel bar straightening, and apply reverse force to the steel bar in accordance with its bending direction to ensure that the steel bars entering the bending stage are in a good straightening state, further avoiding the influence of the steel bar reel on the straightening of the steel bar during the loading and feeding process, thereby producing qualified stirrup products. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the structure of a state in which a steel bar reel is placed on the ground for conveying steel bars in the prior art;

[0038] Figure 2 It is a schematic diagram of the structure of the state in which a steel bar reel is placed on a support shaft for conveying steel bars in the prior art;

[0039] Figure 3 It is a structural schematic diagram of a bending and straightening machine for steel bar processing;

[0040] Figure 4 This is a schematic diagram of the front structure of a bending and straightening machine for steel bar processing;

[0041] Figure 5 This is a schematic diagram of the rear structure of a bending and straightening machine for steel bar processing;

[0042] Figure 6 It is a structural schematic diagram of a state in which a feeding swing arm in a bending and straightening machine for steel bar processing lifts a steel bar reel and slides toward a supporting mechanism;

[0043] Figure 7 It is a schematic diagram of the coordination structure of a first support frame, a second support frame and a support pipe in a bending and straightening machine for steel bar processing;

[0044] Figure 8 It is a schematic diagram of the partial structure of the arc plate, support tube and expansion assembly in a bending and straightening machine for steel bar processing;

[0045] Fig. 9 It is a schematic diagram of the structure of a rotating ring, a belt, a slide, a tensioning wheel and an elastic connecting piece in a bending and straightening machine for steel bar processing;

[0046] Fig.10 It is a schematic diagram of the structure of the adjustment block, the adjustment plate, the electric cylinder and the internal coordination of the machine body in a bending and straightening machine for steel bar processing;

[0047] Fig.11 It is a structural schematic diagram of the decomposed state of the adjustment block and the telescopic structure in a bending and straightening integrated machine for steel bar processing;

[0048] Fig.12 The present invention is a structural schematic diagram of a positioning mechanism and an auxiliary frame in a bending and straightening machine for steel bar processing.

[0049] Legend: 1. Machine body; 2. Base; 3. Straightening mechanism; 4. Cutting machine; 5. Bending machine; 6. First support frame; 7. Second support frame; 8. Support tube; 9. Arc plate; 10. Rotating tube; 11. Bidirectional screw; 12. First motor; 13. Connecting gear; 141. First bending rod; 142. Second bending rod; 15. Screw plate; 16. Rotating ring; 17. Pulley; 18. Belt; 19. Connecting rod; 20. Sliding frame; 21. Tensioning wheel; 22. Annular groove; 23. Bump; 24. Sleeve; 25. Telescopic rod; 26. Tension spring; 27. Sliding rod; 28. U-shaped rod; 29. ​​Spring; 30. Rotating motor; 311. Meshing gear; 3 2. Rotating shaft; 33. Loading swing arm; 34. Retaining ring; 35. Transition ring; 36. Adjusting block; 37. Wheel; 39. Adjusting wheel; 40. Third motor; 41. Screw; 42. Optical axis; 43. Electric cylinder; 44. Adjusting plate; 45. Adjusting shaft; 46. Through hole; 47. Groove; 48. Sliding block; 49. Fourth motor; 50. Discharge frame; 51. Guide plate; 52. Fifth motor; 53. Strip groove; 54. Push rod; 55. Detection head; 56. Bracket; 57. Sixth motor; 58. Screw; 59. Sliding shaft; 60. First adjusting cylinder; 61. Second adjusting cylinder; 62. Longitudinal plate; 63. Guide shaft; 64. Second motor. DETAILED DESCRIPTION

[0050] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0051] See also Figure 1 A bending and straightening machine for steel bar processing, comprising: a base 2, an adjusting wheel 39, a straightening wheel, a fourth motor 49, a discharge mechanism and a bending machine 5; a body 1 is arranged on the base 2, and two freely rotatable wheels 37 are arranged on the body 1, and the two wheels 37 are arranged up and down; the adjusting wheel 39 is arranged between the two wheels 37, and the gap between the adjusting wheel 39 and the wheel 37 is adapted to the diameter of the steel bar; a plurality of straightening wheels are arranged on both sides of the two wheels 37 and can rotate freely, and a plurality of straightening wheels are arranged in two rows, and the spacing between the two rows of straightening wheels is adapted to the diameter of the steel bar, and a first channel for the steel bar to pass through is formed between the two rows of straightening wheels; a fourth motor 49 is arranged in the body 1, and the fourth motor 49 drives the wheel 37 to rotate; the discharge mechanism is fixedly installed on the top of the base 2, and the steel bar is wound on the discharge mechanism; and the bending machine 5 is arranged on the side of the straightening wheel and away from the discharge mechanism.

[0052] In the present invention, a preferred embodiment is that the unwinding mechanism props up the reel of the wound steel bar. When in use, the steel bar is first passed through the first channel and between the two upper and lower discs 37, and the fourth motor 49 is started to rotate the discs 37 to drive the steel bar to move along the rotation direction of the discs 37, so that the steel bar is straightened between the straightening wheels arranged in rows. Preferably, the straightening wheels in the two rows are staggered, and the spacing between the straightening wheels in the same row is matched with the spacing of the straightening wheels. The upper and lower discs 37 can press the steel bar in the opposite direction to straighten it. The steel bar is straightened. After the modulation is completed, the steel bar is bent by the last bending machine 5 so as to adapt to the subsequent use in the building. No matter whether the steel bar on the steel bar reel is released from the upper side or the lower side, under the action of the adjustment mechanism, the steel bar can be reversely pressed and straightened in combination with the bending direction of the steel bar, which has stronger adaptability and does not require operators to place the steel bar reel, reducing labor intensity. Preferably, a cutting machine 4 is also provided on the machine body 1, and the cutting machine 4 is arranged on the side of the bending machine 5 away from the discharge mechanism, and the steel bar is cut by the cutting machine 4.

[0053] Furthermore, the bending machine 5 and the cutting machine 4 are conventional bending machines 5 and cutting machines 4 on the market.

[0054] Furthermore, an adjustment block 36 is longitudinally slidably provided on the machine body 1, and the adjustment block 36 is driven by the driving assembly 3, and the wheel disc 37 located at the top is rotatably installed in the front upper area of ​​the adjustment block 36, and the wheel disc 37 located at the bottom is rotatably installed in the front lower area of ​​the adjustment block 36. There are two adjustment wheels 39, and the two adjustment wheels 39 are rotatably installed between the wheel disc 37 located at the top and the wheel disc 37 located at the bottom. A telescopic structure is provided between the two adjustment wheels 39, which is used to drive the adjustment wheels 39 to extend and retract forward and backward. A suitable adjustment structure is provided on the front side wall of the machine body 1. The entire block 36 slides up and down in a sliding groove, and the driving component three includes a third motor 40, a screw rod 41 and an optical axis 42. The screw rod 41 and the optical axis 42 are respectively arranged longitudinally on both sides of the sliding groove, and the screw rod 41 is rotatably connected to the top side wall and the bottom side wall of the sliding groove. The top end of the screw rod 41 passes through the top side wall of the sliding groove and is connected to the output end of the third motor 40. The third motor 40 is installed on the top of the machine body 1. The two ends of the optical axis 42 are fixedly connected to the top side wall and the bottom side wall of the sliding groove. The two sides of the adjustment block 36 are respectively provided with a threaded through hole 46 suitable for the screw rod 41 to pass through the thread and a through hole 46 suitable for the optical axis 42 to slide through the thread. The sliding through hole 46 penetrated by the third motor 40 drives the screw rod 41 to rotate through the rotation to realize the up and down adjustment of the adjustment block 36. The upper wheel disc 37 and the lower wheel disc 37 are of the same size, and the outer diameters of the two wheel discs 37 are larger than the outer diameter of the adjustment wheel 39. The size of the adjustment wheel 39 is consistent with the size of the straightening wheel. When the steel bars transported to the straightening mechanism 3 (straightening wheel, wheel disc 37 and adjustment wheel 39) are released from the steel bar reel, they are released on the upper side, that is, the curvature of the steel bars is upward, so the adjustment block 36 is driven by the third motor 40 to move downward. , so that when the steel bar passes through, it is pressed downward by the upper wheel disc 37 and rotated for transportation. On the contrary, when the steel bar transported to the inside of the straightening mechanism 3 is released by the steel bar reel, it is released at the lower side, that is, the curvature of the steel bar is downward, so the third motor 40 drives the adjustment block 36 to move upward, so that when the steel bar passes through, it is pressed upward by the upper wheel disc 37 and rotated for transportation. Therefore, there is no need to require the operator to adjust the steel bar reel before placement. In combination with the bending direction of the steel bar when it is transported, the use position of the upper wheel disc 37 or the lower wheel disc 37 can be adjusted in time.

[0055] In addition, if the steel bar has passed through the adjustment mechanism, the two adjustment wheels 39 can be driven to retract backwards through the telescopic structure, and the upper disc 37 or the lower disc 37 is selected to contact the steel bar in combination with the bending position of the steel bar, and then the two adjustment wheels 39 are extended outward again to achieve the selection of the use of the upper disc 37 or the lower disc 37 after the steel bar passes through the adjustment mechanism, wherein the telescopic structure includes an electric cylinder 43, the electric cylinder 43 is arranged on the rear side of the adjustment block 36, the front output end of the electric cylinder 43 is vertically connected to the adjustment plate 44, the front ends of the adjustment plate 44 are connected to the adjustment shafts 45, and the front ends of each adjustment shaft 45 are connected to the adjustment shafts 45. The ends are concentric with the adjusting wheel 39 at the corresponding position and are rotatably connected. A through hole 46 suitable for the adjusting shaft 45 to pass through front and back is provided at the position corresponding to the adjusting wheel 39 on the adjusting block 36. The adjusting shaft 45 is arranged in the through hole 46, so it can move with the up and down movement of the adjusting block 36. In order to ensure that the electric cylinder 43 can move up and down stably with the adjusting block 36, a groove body 47 suitable for the electric cylinder 43 to slide up and down is also provided on the rear side of the body 1, that is, at a position communicated with the sliding groove. A sliding block 48 is provided in the groove body 47. The electric cylinder 43 passes through the sliding block 48 and is fixedly connected to the sliding block 48, so as to ensure the stable use of the electric cylinder 43 when adjusting up and down.

[0056] Furthermore, in order to further improve the conveying effect of the straightening mechanism 3 on the steel bars, the upper disc 37 and the lower disc 37 can be driven independently, and a fourth motor 49 is installed on the rear side of the adjustment block 36 to drive the upper disc 37 and the lower disc 37 to rotate (the fourth motor 49 is correspondingly installed on the upper disc 37 and the lower disc 37), and the adjustment block 36 is provided with a mounting groove suitable for the installation of the fourth motor 49. The rotation of the fourth motor 49 drives the upper disc 37 or the lower disc 37 to rotate.

[0057] Furthermore, the discharge mechanism includes: a support frame arranged on the top of the base 2; a rotating tube 10 rotatably arranged on the support frame; a plurality of bidirectional screws 11 arranged outside the rotating rod, a rotatable first bent rod 141 is arranged between the bidirectional screw 11 and the rotating tube 10; a second bent rod 142 rotatably arranged on the bidirectional screw 11, an arc plate 9 is arranged at one end of the second bent rod 142 away from the bidirectional screw 11, and the steel bars are wound around a plurality of the arc plates 9. Preferably, a limit plate is arranged at the end of the arc plate 9, and the steel bars wound around the plurality of arc plates 9 are limited by the limit plate, so as to ensure that the steel bars will not slide during the straightening process, which will cause the steel bars to fall off during the straightening process.

[0058] Furthermore, the support frame includes a first support frame 6 and a second support frame 7, the first support frame 6 is arranged on the base 2, the second support frame 7 is arranged on the first support frame 6, the rotating tube 10 is rotatably arranged on the second support frame 7 through a rotatable mechanism, such as a bearing, etc., and a plurality of arc plates 9 are arranged on the outer circumference of the rotating tube 10.

[0059] Furthermore, a screw disk 15 is threadedly connected to the bidirectional screw 11, and the first bent rod 141 and the second bent rod 142 are rotatably provided at the end of the screw disk 15; a slide groove is formed at the end of the bidirectional screw 11, and a slide rod 27 is slidably provided in the slide groove, and a part of the slide rod 27 extends outside the bidirectional screw 11 to form a sliding section; a U-shaped rod 28 is fixedly installed at the end of the sliding section, and the two ends of the U-shaped rod 28 are respectively fixedly connected to the first bent rod 141 and the second bent rod 142; a spring 29 is provided on the outer sleeve of the sliding section. Preferably, the bidirectional screw 11 is adjusted so that the screw disk 15 moves along the bidirectional screw 11. During the movement, the U-shaped rod 28 pulls the first curved rod 141 and the second curved rod 142 together, so that the first curved rod 141 and the second curved rod 142 rotate along the moving direction of the screw disk 15, so that the first curved rod 141 and the second curved rod 142 drive the arc plate 9 to extend or retract, and the spring 29 contracts and supports the U-shaped rod 28, so that the U-shaped rod 28 does not slide. Preferably, two screw disks 15 are provided, and the two screw disks 15 are respectively provided at both ends of the bidirectional screw 11, and the first curved rod 141 and the second curved rod 142 are provided with two corresponding screw disks 15.

[0060] Furthermore, the first curved rod 141 and the second curved rod 142 are symmetrically arranged, and the bidirectional screw 11 is arranged between the first curved rod 141 and the second curved rod 142. The bidirectional screw 11 passes through the screw disk 15 and cooperates with the screw disk 15 threadably. The screw disk 15 is threadably connected to the bidirectional screw 11, so that when the bidirectional screw 11 rotates, the two screws can approach or move away from each other at the same time, thereby driving the corresponding first curved rod 141 and second curved rod 142 on each screw disk 15 to straighten or contract.

[0061] Furthermore, both ends of the bidirectional screw 11 are provided with sliding grooves in the opposite direction of its axial direction, and the sliding rod 27 is slidably inserted into the sliding groove, and the outer end of each sliding rod 27 is connected to a U-shaped rod 28, and the two ends of the U-shaped rod 28 are respectively slidably connected to the outer walls of the corresponding two bent rods, and a spring 29 is sleeved on the outside of the sliding rod 27, and the two ends of the spring 29 are respectively connected to the bidirectional screw 11 and the U-shaped rod 28. Through the setting of the sliding rod 27 and the sliding groove, as the two bent rods are straightened or bent, they can slide inside the bidirectional bolt, and at the same time, the two ends of the U-shaped rod 28 are respectively matched with the sliding between the corresponding two bent rods to ensure the use of the stable frame, and also to ensure the stable use of the bidirectional screw 11. Among them, the sliding mode between the U-shaped rod 28 and the bent rod can also adopt the structural design of T-slot and T-block, so that the U-shaped rod 28 can only slide on the bent rod without separating from it, thereby ensuring the stable use of the bidirectional screw 11 and not affecting the rotation and position change of the bidirectional screw 11.

[0062] Furthermore, the second support frame 7 can provide stable rotational support for the support tube 8. A rotating motor 30 is installed on the first support frame 6. A meshing gear 31 is installed on the outside of the support tube 8 close to the first support frame 6. The meshing gear 31 is also installed on the output end of the rotating motor 30. The meshing gear 31 and the meshing gear 31 are meshed. Through the rotation of the rotating motor 30 and the meshing gear 31 and the meshing gear 31, the support tube 8 and the rotating tube 10 can be driven to rotate relative to each other, which is used to slowly release the steel bars on the steel bar reel, facilitate the transportation of steel bars into the body 1, and be used for straightening and bending.

[0063] Furthermore, the rotating tube 10 is fixedly mounted with a rotating ring 16, on which a plurality of annular grooves are formed; the bidirectional screw 11 is fixedly mounted with a pulley 17, and a belt 18 is sleeved between the pulley 17 and the annular groove at the corresponding position; the rotating tube 10 is provided with a support tube 8, which is arranged at the end of the rotating ring 16, and the support tube 8 is provided with the first curved rod 141. Through the pulley 17 and the belt 18 sleeved on the annular groove, when the rotating wheel rotates, the bidirectional screw 11 can be driven to rotate.

[0064] Furthermore, two support tubes 8 are provided, and a plurality of slides 20 are slidably provided on two opposite sides of the two support tubes 8, and the slides 20 are provided with tensioning wheels 21 corresponding to the belts 18. When the rotating tube 10 rotates, the tensioning wheels 21 push the belt 18 to tighten the belt 18, thereby rotating the bidirectional screw 11 and maintaining effective transmission between the pulley 17 and the rotating ring 16.

[0065] Furthermore, a connecting rod 19 is provided between the two support tubes 8. The connecting rod 19 is used to prevent the support tube 8 from sliding.

[0066] Furthermore, the two sections of the support tube 8 are connected by a connecting rod 19 to ensure the stability of the two sections of the support tube 8. The rotating ring 16 is fixedly connected to the rotating tube 10, so that the rotating ring 16 and the support tube 8 can rotate relative to each other. Through the cooperation of the belt 18 and the pulley 17, under the rotation of the rotating ring 16, through the rotation of the rotating tube 10, multiple bidirectional screws 11 are driven to rotate simultaneously. Since the rotation of the bidirectional screw 11 will bring about changes to the first curved rod 141 and the second curved rod 142, the bidirectional screw 11 will also move closer to or away from the support tube 8. Therefore, the transmission effect of the belt 18 on the pulley 17 and the rotating ring 16 is always maintained through the tensioning component to prevent the belt 18 from loosening.

[0067] Furthermore, slides 20 are provided on both sides of each belt 18, and the slides 20 are slidably connected to the outer wall of the support tube 8. A tensioning wheel 21 is rotatably installed on each slide 20, and the tensioning wheel 21 is rotatably contacted with the outer side of the belt 18. An elastic connecting piece is connected between the two slides 20 on each belt 18, which is used to ensure that the tensioning wheel 21 always presses the belt 18 tightly.

[0068] Furthermore, the slide 20 is U-shaped, and the slide 20 is straddled on the two support tubes 8. The outer walls of the two sections of the support tubes 8 are provided with annular grooves 22, and corresponding protrusions 23 are provided at both ends of each slide 20. The protrusions 23 slide with the annular grooves 22, and the protrusions 23 can only slide inside the annular grooves 22, but cannot be separated from them. The structural design of T-slots and T-blocks can be adopted. In this embodiment, the elastic connector can use a connecting spring to elastically tighten the two slides 20, so that as the belt 18 changes, the tensioning wheel 21 is always kept tight against the belt 18 to maintain the effective use of the belt 18. In this embodiment, further use can be made as follows Fig. 9 The structure shown includes a sleeve 24 and a telescopic rod 25. Two telescopic rods 25 are slidably installed on both sides of the sleeve 24. A tension spring 26 is connected between the two telescopic rods 25. The spring is arranged inside the sleeve 24. The other ends of the two telescopic rods 25 are rotatably connected to the two slides 20 respectively. The number of elastic connectors between each two slides 20 is selected based on actual usage. Preferably, two elastic connectors are preferably used between the two slides 20.

[0069] Furthermore, a feeding frame 50 is provided at one end of the rotating tube 10 away from the supporting frame, and an opening is formed in the feeding frame 50 corresponding to the position of the rotating tube 10. A pusher is provided in the feeding frame 50, and the steel bars placed in the feeding frame 50 are pushed toward the opening by the pusher. By placing the wound steel bars in the feeding frame 50, the labor cost can be reduced.

[0070] Furthermore, a loading swing arm 33 is provided between the unloading frame 50 and the rotating tube 10, and the loading swing arm 33 is obliquely provided on the unloading frame 50 and the rotating tube 10, and the top elevation of the loading swing arm 33 provided on one end of the unloading frame 50 is higher than the top elevation of the loading swing arm 33 provided on the rotating tube 10. The rolled steel bars are placed on the loading mechanism through the loading swing arm 33, thereby saving labor costs.

[0071] Furthermore, a rotating shaft 32 passes through the interior of the rotating tube 10, and the rotating shaft 32 is rotatably connected to the first support frame 6. The driving component 2 is installed on the first support frame 6, and the output end of the driving component 2 is connected to the rotating shaft 32. The feeding swing arm 33 is obliquely installed at the other end of the rotating shaft, and a retaining ring 34 is installed at the other end of the feeding swing arm 33. A transition ring 35 is installed at the end of the feeding swing arm 33 close to the rotating shaft 32. In this embodiment, the driving component 2 includes a second motor 644, and the second motor 64 is installed on the first support frame 6. The output end of the second motor 64 is connected to the rotating shaft 32. The rotating shaft 32 and the rotating tube 10 can rotate relatively independently. The rotation of the first motor 12 can drive the feeding swing arm 33 to rotate, and the steel bar reel is fed. The retaining ring 34 can prevent the steel bar reel from slipping on the feeding swing arm 33 during feeding. The transition ring 35 can more effectively slide the steel bar reel to the outer wall of the multiple arc plates 9 that are not opened, thereby realizing the feeding of the steel bar reel.

[0072] Furthermore, a guide plate 51 is provided on the inner wall of the material discharging frame 50. Preferably, the guide plate 51 is provided on the inner wall of the side away from the opening, and the thickness of the guide plate 51 gradually increases from the side away from the opening to the side close to the opening.

[0073] Furthermore, the discharge frame 50 is arranged at the top of the loading swing arm 33 as the input side, and an opening is provided on the side of the discharge frame 50 close to the loading swing arm 33. A pusher is installed on the top of the discharge frame 50 to push the multiple steel bar reels placed in the discharge frame 50 toward the position of the loading swing arm 33. A guide plate 51 is arranged at the opening, and the guide plate 51 is connected to the inner wall of the discharge frame 50. The thickness of the guide plate 51 gradually increases from the side close to the discharge frame 50 to the side away from the discharge frame 50.

[0074] Furthermore, multiple rebar reels can be placed inside the discharge frame 50 at the same time, and the rebar reels are transported toward the position of the feeding swing arm 33 by a pusher, wherein the pusher includes a fifth motor 52, and the fifth motor 52 is mounted on the top of the discharge frame 50. A strip groove 53 is provided on the top of the discharge frame 50, and multiple push rods 54 are circumferentially installed on the output shaft of the fifth motor 52. The rotation of the fifth motor 52 drives the push rods 54 to rotate, so that the rebar reel can be moved to the position of the feeding swing arm 33. Before the loading swing arm 33 loads the material, the initial position of the loading swing arm 33 is placed downward. As the rebar reel is pushed toward the position of the loading swing arm 33, the rebar reel moves to the opening of the discharge frame 50. The rebar reel is guided to the position of the loading swing arm 33 by the gradual widening of the guide plate 51 without being blocked by the side wall of the discharge frame 50. Therefore, through the rotation of the loading swing arm 33, the rebar reel can be transported to the support mechanism for use under the action of the transition ring 35.

[0075] Furthermore, a first motor 12 is disposed on the support frame, and the first motor 12 drives the rotating shaft 32 to rotate.

[0076] Furthermore, the first motor 12 is installed on the side of the first support frame 6, and a connecting gear 13 is installed at the output end of the first motor 12. The connecting gear 13 is arranged on the outside of the rotating tube 10, and the connecting gear 13 is meshed with the connecting gear 13. Through the rotation of the first motor 12, the meshing action of the two gears drives the rotating tube 10 to rotate, and the rotating tube 10 rotates relative to the support tube 8 sleeved on the outside of the rotating tube 10. Under the action of the belt 18 and the tensioning wheel 21, the rotating rod drives the bidirectional screw 11 to rotate during the rotation process, so that the spiral ring slides along the bidirectional screw 11 to drive the first curved rod 141 and the second curved rod 142 to rotate, so that the plurality of arc plates 9 are opened or closed.

[0077] Furthermore, a positioning mechanism is also provided, which is arranged between the supporting mechanism and the machine body 1, and is used for positioning and adjusting the conveying position of the steel bars, wherein the positioning mechanism includes a detection head 5555, the detection head 55 is installed on the machine body 1 through a bracket 56, and the detection head 55 is provided with two in this embodiment, and the two detection heads 55 are aligned with the direction of the steel bars in the straightening mechanism 3, and also includes a sixth motor 57, a placement groove suitable for the installation of the sixth motor 57 is provided on the base 2, and the sixth motor 57 is installed in the placement groove, and an adjustment groove for the bottom sliding of the first supporting frame 6 is provided on the base 2, and two sliding shafts 59 are fixedly installed on both sides of the adjustment groove along the length direction thereof, and a lead screw 58 is provided in the middle of the two sliding shafts 59, and the lead screw 58 and the adjustment The node slot is rotatably connected, and one end of the lead screw 58 is connected to the output end of the sixth motor 57, wherein the bottom of the first support frame 6 is provided with a threaded through hole 46 suitable for the threaded cooperation of the lead screw 58 and a sliding through hole 46 suitable for the sliding shaft 59 to slide through. The first support frame 6 can be driven to move in the adjustment slot by the forward and reverse rotation of the sixth motor 57, wherein the detection head 55 is electrically connected to the sixth motor 57. When it is found that the steel bar deviates from the feeding position, the detection head 55 can release a signal to the sixth motor 57, so that it can adjust the use position of the steel bar reel to ensure that it can always keep aligned with the straightening mechanism 3 on the machine body 1 in the longitudinal direction, so as to avoid the steel bar being bent again in the horizontal direction or the problem of poor steel bar feeding caused by bending.

[0078] Furthermore, an auxiliary frame is also provided, which is arranged between the first supporting frame 6 and the machine body 1. The auxiliary frame includes a first adjusting cylinder 60 installed longitudinally, the first adjusting cylinder 60 is installed on the base 2, and the second adjusting cylinder 61 is vertically installed on the top of the first adjusting cylinder 60. A longitudinal plate 62 is installed at the front end of the second adjusting cylinder 61, and two truncated cone-shaped guide shafts 63 are symmetrically arranged at the front end of the longitudinal plate 62. When the steel bars are transported toward the inside of the machine body 1, the heights of the two guide shafts 63 are adjusted by the first adjusting cylinder 60, and the use positions of the two guide shafts 63 are adjusted front and back by the second adjusting cylinder 61, so that the steel bars are located between the two guide shafts 63. In combination with the bending direction of the steel bars, they are pre-pressed so that the steel bars are in a horizontal state as much as possible when they enter the adjusting mechanism of the machine body 1, thereby improving the conveying effect of the steel bars. Since the steel bar reel has a certain width, as the steel bar reel is released, the steel bars will The steel bar deviates from the entrance of the straightening mechanism 3, and the conveying position of the steel bar can be observed through the detection head 55. A signal transmitter is arranged in the detection head 55, and a signal receiver matching the signal transmitter is installed in the sixth motor 57. When the two detection heads 55 detect that the steel bar deviates from the conveying position, the signal can be transmitted to the sixth motor 57. The sixth motor 57 selects the rotation direction and controls the rotation of the lead screw 58 to adjust the use position of the steel bar reel. The two guide shafts 63 on the auxiliary frame can be used to suppress the steel bars in the conveying process, and further ensure that the steel bars entering the straightening mechanism 3 are in a horizontal state. The positioning mechanism is cooperated to ensure that the steel bars are inserted into the straightening mechanism 3 in a straight state. At the same time, the upper guide shaft 63 or the lower guide shaft 63 can be selected to apply reverse force to the bending direction of the steel bar in combination with the release direction of the steel bar, and reverse straightening is performed in advance to improve the straightening effect of the steel bar.

[0079] The following is a description of the use of the integrated bending and straightening machine for steel bar processing of the present invention.

[0080] First, multiple rebar reels that need to be straightened and bent are placed longitudinally in the discharge frame 50, and then pushed into the inside of the frame, and the fifth motor 52 is turned on. The fifth motor 52 rotates to drive the pushing rod 54 to rotate, and the rebar reel moved to the bottom of the pushing assembly is transported to the position of the unloading swing arm. Under the action of the guide plate 51, the rebar reel falls over the loading swing arm 33, and the second motor 64 is turned on. The second motor 64 drives the downward loading swing arm 33 to rotate to the facing position, and the rebar reel is slid along the inclined loading swing arm 33 to the outside of the multiple arc plates 9 under the action of the transition ring 35, and then the first motor 12 is turned on. The first motor 12 drives the rotating tube 10 to rotate, so that the bidirectional screw 11 rotates, so that the multiple arc plates 9 are expanded outward to support the inside of the rebar reel;

[0081] After the support is completed, the first motor 12 and the rotating motor 30 are turned on at the same time, so that the support tube 8 and the rotating tube 10 are slowly rotated at the same time to release the steel bars on the steel bar reel. When releasing, the first control motor and the rotating motor 30 control the speed of the rotating tube 10 and the support tube 8 to always keep the state of simultaneous rotation, that is, a relatively static state, so as to ensure the stable support of the steel bar reel by the arc plate 9, and then one end of the steel bar reel is inserted from the input end of the machine body 1 into the straightening structure, and the direction of releasing the steel bars on the steel bar reel, that is, the direction of bending the steel bars, is selected to correspond to the wheel disc 37 located above or the wheel disc located below The position of the wheel disc 37, if the steel bars on the steel bar reel are released from the upper side to the outside, that is, the bending arc of the steel bars is downward, then the third motor 40 is turned on, and the adjustment block 36 is adjusted to move downward, so that the wheel disc 37 located at the top is adjusted downward, so that when the steel bars pass between the wheel disc 37 located at the top and the two corresponding adjustment wheels 39, they will be bent downward, and the steel bars can be continuously pressed in the opposite direction as they are transported. Similarly, if the steel bars on the steel bar reel are released from the lower side, that is, the bending arc of the steel bars entering the straightening structure is upward, then the wheel disc 37 located at the bottom can be adjusted upward;

[0082] If the steel bar has passed through the adjustment mechanism at this time, the two adjustment wheels 39 can be moved backward by turning on the electric cylinder 43, and then the upper wheel disc 37 or the lower wheel disc 37 can be adjusted according to the upper wheel disc 37 or the lower wheel disc 37 to be used. At this time, the upward and downward movement of the adjustment block 36 is not affected by the adjustment wheel 39 on the steel bar, so the upper wheel disc 37 and the lower wheel disc 37 can be selected. After the selection is completed, the two adjustment wheels 39 are extended outward to the use position by the electric cylinder 43 again. It should be noted that the retractable design of the adjustment wheel 39 is to add a convenient way to adjust the upper wheel disc 37 or the lower wheel disc 37, so as to avoid the phenomenon that the steel bar needs to be retracted again if the upper wheel disc 37 or the lower wheel disc 37 is adjusted when the steel bar has passed through the adjustment mechanism. If it is inconvenient to operate the telescopic structure during the steel bar transportation process, you can choose to stop the machine (without retracting the steel bar), and after the upper wheel disc 37 and the lower wheel disc 37 are selected appropriately, they can be transported and used again;

[0083] The steel bars are straightened by adjusting the mechanism in cooperation with the original straightening mechanism 3, and then bent by the bending mechanism. The bent steel bars are cut off by the cutting machine 4 and fall into the collection box. As the steel bars are transported and straightened, the above actions are repeated to continuously prepare the required stirrups.

[0084] The present invention is described in detail above in conjunction with the embodiments of the accompanying drawings. A person skilled in the art can make various variations of the present invention according to the above description. Therefore, certain details in the embodiments should not constitute a limitation of the present invention, and the scope of protection of the present invention shall be defined by the scope of the attached claims.

Claims

1. A bending and straightening machine for steel bar processing, characterized in that: include: A base, on which a body is arranged, on which two freely rotatable wheels are arranged, the two wheels being arranged up and down; An adjusting wheel is arranged between the two wheel discs and is position-adjustable, and the position of the adjusting wheel is adjusted so that the distance between the adjusting wheel and the wheel discs is matched with the diameter of the steel bar; A plurality of straightening wheels are arranged on both sides of the two wheel discs and can rotate freely, the plurality of straightening wheels are arranged in two rows, the spacing between the two rows of straightening wheels is adapted to the diameter of the steel bar, and a first channel for the steel bar to pass through is formed between the two rows of straightening wheels; A fourth motor is disposed in the body, and the fourth motor drives the wheel to rotate; a feeding mechanism fixedly mounted on the top of the base, the steel bar being wound around the feeding mechanism; and A bending machine is arranged on the side of the straightening wheel and away from the material discharge mechanism.

2. The steel bar bending and straightening machine according to claim 1 is characterized in that: The unloading mechanism comprises: A support frame disposed on the top of the base; A rotating tube rotatably arranged on the supporting frame; A plurality of bidirectional screws are arranged outside the rotating rod, and a rotatable first curved rod is arranged between the bidirectional screws and the rotating tube; A second bent rod is rotatably arranged on the bidirectional screw rod, and an arc plate is arranged at one end of the second bent rod away from the bidirectional screw rod, and the steel bars are wound around a plurality of the arc plates.

3. The steel bar bending and straightening machine according to claim 2, characterized in that: The bidirectional screw rod is threadedly connected with a screw plate, and the end of the screw plate is rotatably provided with the first curved rod and the second curved rod; A slide groove is formed at the end of the bidirectional screw, a slide rod is slidably arranged in the slide groove, and a portion of the slide rod extends outside the bidirectional screw to form a slide section; A U-shaped rod is fixedly installed at the end of the sliding section, and two ends of the U-shaped rod are respectively fixedly connected to the first curved rod and the second curved rod; The outer sleeve of the sliding section is provided with a spring.

4. The steel bar bending and straightening machine according to claim 3 is characterized in that: The rotating tube is fixedly mounted with a rotating ring, and the rotating ring is formed with a plurality of annular grooves; A pulley is fixedly mounted on the bidirectional screw, and a belt is sleeved between the pulley and the annular groove at the corresponding position; A support tube is disposed outside the rotating tube. The support tube is disposed at the end of the rotating ring. The first curved rod is disposed on the support tube.

5. The steel bar bending and straightening machine according to claim 4 is characterized in that: Two support tubes are provided, and a plurality of slides are slidably provided on two opposite side portions of the two support tubes, and the slides are provided with tension wheels corresponding to the belts.

6. The steel bar bending and straightening machine according to claim 5, characterized in that: A connecting rod is arranged between the two support tubes.

7. The steel bar bending and straightening machine according to claim 3 is characterized by: A feeding frame is arranged at one end of the rotating tube away from the supporting frame, an opening is formed in the feeding frame corresponding to the position of the rotating tube, a pusher is arranged in the feeding frame, and the steel bars placed in the feeding frame are pushed toward the opening by the pusher.

8. The steel bar bending and straightening machine according to claim 7, characterized in that: A loading swing arm is arranged between the material discharge frame and the rotating tube, and the loading swing arm is arranged obliquely on the material discharge frame and the rotating tube. The top elevation of the loading swing arm arranged at one end of the material discharge frame is higher than the top elevation of the loading swing arm arranged on the rotating tube.

9. The steel bar bending and straightening machine according to claim 7, characterized in that: A guide plate is arranged on the inner wall of the material discharging frame.

10. The steel bar bending and straightening machine according to claim 1, characterized in that: An electric cylinder is arranged in the machine body, and the electric cylinder drives the adjusting wheel to move toward the wheel disc.

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