Five-head steel bar bender

Abstract

The utility model discloses a five-head steel bar bender which comprises a traction mechanism used for pulling a steel bar to move in the axial direction; the straightening mechanism is used for straightening the reinforcing steel bars; the cut-off mechanism is arranged at the rear end of the straightening mechanism and used for cutting off the straightened reinforcing steel bars according to the preset length; the ejecting and aligning mechanism is arranged below the cutting mechanism and used for ejecting and aligning the steel bars falling into the material receiving groove after cutting; the five steel bar bending heads can be arranged on the main rack in a self-walking mode along the main track, and each steel bar bending head comprises a displacement mechanism, an inclined plate and a bending mechanism; the bending mechanism comprises a bending oil cylinder, a bending disc and a supporting mandrel, and the bending oil cylinder is used for driving the bending disc to rotate around the supporting mandrel so as to bend a reinforcing steel bar; the inclination angles of at least two steel bar bending machine heads are different.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automatic steel bar processing equipment, in particular to a five-head steel bar bender. BACKGROUND

[0002] In the field of building construction, steel bar processing is a basic and important work. The traditional hoop bending machine has a single function and can only realize the bending and forming of the steel bar, which is independent of the straightening machine. After the steel bar is straightened, it needs to be manually transported and arranged and placed on the hoop bending machine to complete the bending and forming operation with the assistance of manual operation. This process not only consumes a large amount of human resources, but also greatly increases the labor intensity of the operator, and there is a safety hazard, resulting in low processing efficiency.

[0003] In the straightening process, the existing equipment often ignores the treatment of iron filings generated in the steel bar processing process. The random scattering and accumulation of iron filings not only pollute the working environment, but also adversely affect the operation of the equipment and the safety of the operator.

[0004] Part of the so-called integrated machine cannot accurately send the steel bar to the specified position for subsequent bending processing after the steel bar is straightened. Moreover, before the bending processing, the steel bar is difficult to achieve good alignment and fixation, resulting in uneven size of the processed steel bar, frequent failures during processing, and high scrap rate.

[0005] Especially prominent is that in the steel bar bending process, the structural design of the bending machine head has many unreasonable places. When each bending machine head bends the steel bar, the bending heads are prone to collide with each other, which not only greatly increases the bending scrap rate, but also makes the equipment failure rate high. Moreover, in the face of different bending size requirements, the adjustment of the bending machine head is extremely inconvenient, the position is not accurately positioned, and manual assistance is often needed to complete the bending and forming, which seriously affects the processing efficiency and quality.

[0006] In addition, in the multi-head steel bar bending machine, the number of various pipelines such as hydraulic systems and circuit systems is large and the layout is complex. During the operation and processing of the machine head, these pipelines are prone to intertwine and pull each other, thereby causing pipeline damage and circuit breakage and other problems. Such failures not only have a high occurrence rate, but also are difficult to troubleshoot and repair, which greatly affects the normal operation of the equipment and the production progress. At the same time, the steel bar is in an irregular state after being cut off, and needs to be manually arranged and aligned before subsequent bending processing, which further reduces the overall production efficiency and increases the labor cost and labor intensity. Practical new type content

[0007] In view of the above problems, the present application provides a five-head steel bar bender to solve the technical problems existing in the above steel bar bending processing.

[0008] To achieve the above object, the application provides a five-bar steel bending machine for bending steel bars into workpieces with predetermined shapes, comprising:

[0009] A main frame is provided with a main track in the length direction;

[0010] A straightening mechanism is used for straightening the steel bars;

[0011] A cutting mechanism is arranged at the rear end of the straightening mechanism and used for cutting the straightened steel bars into predetermined lengths;

[0012] Five steel bending heads are arranged on the main frame and can move along the main track, wherein the steel bending head comprises a running mechanism, an inclined plate and a bending mechanism;

[0013] The bending mechanism comprises a bending oil cylinder, a bending disc and a supporting mandrel, wherein the bending oil cylinder is used for driving the bending disc to rotate around the supporting mandrel to bend the steel bar;

[0014] The running mechanism comprises a running motor and a clamping device, and is used for cooperating with the main track and driving the steel bending head to move along the main track;

[0015] The top of the running mechanism is provided with wedge-shaped head plates, the inclined plate is arranged on the wedge-shaped head plates, the bending mechanism is arranged on the inclined plate, and the top of at least two wedge-shaped head plates is provided with a head angle adjusting device to adjust the inclination angles of the inclined plate and the bending mechanism.

[0016] Further, the bending mechanism further comprises an arc-shaped material falling supporting mechanism, wherein the arc-shaped material falling supporting mechanism comprises a material falling supporting inclined plate, a guide plate and an L-shaped supporting arm;

[0017] The L-shaped supporting arm is slidably suspended on the main frame, and the inner side of the L-shaped supporting arm is provided with two mutually perpendicular supporting bearings, and the supporting bearings are in sliding connection with the main frame;

[0018] The material falling supporting inclined plate is arranged at the bottom of the L-shaped supporting arm in an inclined manner, the bottom of the material falling supporting inclined plate is opposite to the supporting mandrel of the bending mechanism, and is used for making the steel bar fall on the supporting mandrel, and the guide plate is arranged in parallel with the material falling supporting inclined plate.

[0019] Further, the running mechanism further comprises a secondary supporting body;

[0020] One end of the running mechanism is supported on the main track through a cushion seat, and is connected by gear and rack transmission; the other end of the running mechanism is supported on the sub-track through a sub-support, which comprises a roller, a horizontally arranged cross arm, and a vertically arranged support arm connected to the end of the cross arm, and the roller is arranged at the bottom of the support arm.

[0021] Further, the support shaft is connected with a telescopic oil cylinder through a shaft sleeve, and the telescopic oil cylinder is used to drive the support shaft to extend to receive the steel bar, and to retract after each bending action of the steel bar is completed.

[0022] Further, the support shaft is a flat shaft, and a flat surface for receiving the steel bar is arranged on the upper part of the support shaft in the circumferential direction, a V-shaped groove is arranged in the middle of the flat surface, the length direction of the V-shaped groove is parallel to the axial direction of the steel bar, the two sides of the V-shaped groove are in contact with the outer periphery of the steel bar, a sunken mounting hole is arranged in the middle of the V-shaped groove, and a magnet is mounted in the mounting hole to attract the steel bar to the V-shaped groove.

[0023] Further, the steel bar bending head further comprises a pre-clamping assembly, and the pre-clamping assembly comprises a spring, a clamping slider, a horizontal rack plate, a longitudinal plate, and a one-way rack.

[0024] The clamping slider is slidably arranged in a concave groove on the middle shaft disc, and can move close to and away from the support shaft.

[0025] The spring is in contact with the clamping slider, and is used to provide a clamping force to the clamping slider, which is directed to the support shaft.

[0026] The clamping slider is provided with a mounting groove to accommodate the horizontal rack plate and the longitudinal plate, the horizontal rack plate and the longitudinal plate are arranged in layers and are connected by a bevel surface, the bevel surface comprises a bevel surface two arranged on the inner surface of the horizontal rack plate and a bevel surface one arranged on the outer surface of the longitudinal plate, the bevel surface one and the bevel surface two are in contact, and the longitudinal plate is provided with an engagement part adapted to the one-way rack.

[0027] When the bending disc is in the initial position, the bending disc bearing is in contact with the longitudinal plate, so that the longitudinal plate and the clamping slider move away from the support shaft.

[0028] When the bending disc rotates to press the steel bar, the bending disc bearing is separated from the longitudinal plate, the clamping slider moves to the support shaft to clamp the steel bar, and the horizontal rack plate moves to the one-way rack, so that the engagement part is engaged with the one-way rack to lock the clamping slider.

[0029] Further, the length direction of the transverse rack plate and the length direction of the longitudinal plate are perpendicular to each other; one end of the length direction of the transverse rack plate is connected with the clamping slider platform, and the other end of the length direction of the transverse rack plate is provided with the meshing part.

[0030] The spring is in abutment with the top end of the clamping slider, and the bottom end of the clamping slider is provided with an anti-skid tooth for contacting the steel bar.

[0031] Further, the cutting-off mechanism comprises a cutting head frame body, a sliding seat and a cutting knife.

[0032] The cutting knife is arranged on the sliding seat, and the cutting knife comprises a cylinder body and a piston rod connected with the cylinder body through a piston, and a blade is arranged at the front end of the piston rod; wherein the cylinder body drives the piston rod to extend or retract through hydraulic oil, so that the blade cuts the steel bar;

[0033] The cutting head frame body comprises a U-shaped support, two parallel track shafts are arranged on the U-shaped support, and the extension directions of the two track shafts are parallel to the direction of the steel bar advancing; the sliding seat comprises a mounting plate and two sliding sleeves; the two sliding sleeves are fixedly arranged at the front end and the rear end of the mounting plate, the sliding seat is slidably connected with the two track shafts through the two sliding sleeves, and the sliding sleeve located at the front end of the mounting plate is lower than the other sliding sleeve, so that the front end of the sliding seat and the piston rod are inclined downward.

[0034] Further, the mounting plate is an L-shaped plate comprising a horizontal bottom plate and a vertical standing plate arranged at the end of the bottom plate, an arc-shaped groove is arranged on the standing plate and matched with the outer shape of the cylinder body, the cylinder body is arranged on the mounting plate and the arc-shaped groove is in abutment with the outer periphery of the cylinder body; an inclined guide plate is arranged at the front end of the U-shaped support, and the inclined guide plate is used for guiding the cut steel bar into a steel bar collecting groove.

[0035] Further, the aligning mechanism comprises a device frame body arranged on the main frame of the steel bar bending machine;

[0036] An aligning plate is arranged in front of the device frame body.

[0037] A transmission speed reducer is fixed on the device frame body and connected with the aligning plate through a main transmission shaft, and is used for driving the aligning plate to move horizontally and abut against the end of the steel bar, so that the steel bar is aligned.

[0038] Different from the prior art, the five-head steel bar bender comprises a traction mechanism, a straightening mechanism, a cutting mechanism, a topping mechanism and five steel bar bending heads, can automatically straighten, cut, top and bend the steel bar, has high automation degree and high steel bar processing efficiency. The five steel bar bending heads are arranged on the main rack and can move along the main track, and the inclination angles of the mounting surfaces on the top of at least two wedge-shaped head plates are different, so that the inclination angles of at least two inclination plates and the bending mechanism are different, thereby avoiding mutual interference of adjacent two steel bar bending machines during processing, and improving the yield of steel bar processing.

[0039] The above content related to the utility model is only a summary of the technical scheme of the application, in order to enable those skilled in the art to more clearly understand the technical scheme of the application, and then can be implemented according to the content recorded in the specification and drawings, and in order to enable the above purpose and other purposes, characteristics and advantages of the application to be more easily understood, the following is described in combination with the specific embodiments of the application and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0040] The drawings are only used to show the principles, implementation manners, applications, characteristics and effects of the specific embodiments of the utility model and other related contents, and cannot be considered as the limitation of the application.

[0041] In the drawings of the specification:

[0042] Figure 1 The structure schematic view of the five-head steel bar bender described in the specific embodiment;

[0043] Figure 2 The structure schematic view of the steel bar bending head described in the specific embodiment;

[0044] Figure 3 The structure schematic view of the bending mechanism described in the specific embodiment;

[0045] Figure 4 The structure schematic view of the inside of the transverse rack plate described in the specific embodiment;

[0046] Figure 5 The partial structure schematic view of the bending mechanism described in the specific embodiment;

[0047] Figure 6 The structure schematic view of the angle adjusting device described in the specific embodiment;

[0048] Figure 7 The structure schematic view of the cutting mechanism described in the specific embodiment;

[0049] Figure 8 The structure schematic view of the topping mechanism described in the specific embodiment;

[0050] The reference signs involved in the above figures are explained as follows:

[0051] 1, pre-adjusting mechanism; 2, traction mechanism I; 3, straightening mechanism; 4, traction mechanism II; 5, cutting mechanism; 6, first reinforcing bar bending head; 7, second reinforcing bar bending head; 8, third reinforcing bar bending head; 9, fourth reinforcing bar bending head; 10, fifth reinforcing bar bending head; 11, reinforcing bar receiving groove; 12, sub track; 13, main track; 14, main frame; 15, hydraulic power unit; 16, traction power unit; 17, top aligning mechanism;

[0052] 51, cutting head frame; 52, sliding seat; 53, cutting knife;

[0053] 511, track shaft; 512, material guide plate; 513, material receiving groove;

[0054] 521, sliding sleeve; 531, cylinder body; 532, piston rod; 533, blade; 534, reinforcing bar guide sleeve; 535, compression spring;

[0055] 61, bending mechanism;

[0056] 611, supporting mandrel; 6110, reinforcing bar receiving plane; 6111, clamping seat body; 6112, clamping sliding block; 6113, bending wheel; 6114, bending disc; 6116, transverse rack plate; 6117, longitudinal plate; 6118, V-shaped groove; 6119, magnet; 61161, inclined surface two; 61162, one-way rack;

[0057] 612, spring cover; 613, bending oil cylinder;

[0058] 614, telescopic oil cylinder;

[0059] 62, arch-shaped material falling support mechanism;

[0060] 621, L-shaped support arm; 622, material falling support inclined plate; 623, guide plate;

[0061] 63, running position mechanism; 631, sliding groove;

[0062] 632, inclined plate; 633, running position motor; 634, wedge-shaped head plate;

[0063] 64, encoder assembly; 66, sub support body; 67, roller.

[0064] 681, bottom plate; 6811, first boss; 6812, second boss; 6813, inclined surface sliding groove; 682, angle adjusting plate; 6821, avoiding hole; 683, hinge plate; 6831, first hinged shaft; 684, screw adjusting assembly; 6841, cross pin; 6843, adjusting screw;

[0065] 171, device frame body; 172, top flush plate; 173, position sensor; 174, induction sleeve; 175, reset tension spring; 176, transmission reducer; 177, main transmission shaft; 178, auxiliary transmission shaft; DETAILED DESCRIPTION

[0066] To explain the possible application scenarios, technical principles, specific implementation schemes, and the purposes and effects of the present application in detail, the specific embodiments listed below are described in detail in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0067] In this paper, the term "embodiment" means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the present application. The term "embodiment" appearing at various places in the specification does not necessarily refer to the same embodiment, and does not particularly limit the independence or association between other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment can be combined in any way to form a corresponding implementable technical solution.

[0068] Unless otherwise defined, the meaning of the technical terms used herein is the same as that generally understood by those skilled in the art to which the present application belongs; the use of related terms in this paper is only for the purpose of describing specific embodiments, and is not intended to limit the present application.

[0069] In the description of the present application, the word "and / or" is a description of the logical relationship between the objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this paper generally represents that the associated objects before and after are a kind of "or" logical relationship.

[0070] In the present application, such as "first" and "second", the terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, primary and secondary or order relationship between the entities or operations.

[0071] In the present application, the terms "comprise", "contain", "include", or other similar expressions used in the description are intended to encompass non-exclusive inclusions, and these terms do not exclude the possibility of additional elements being present in the process, method or product comprising the stated elements, so that the process, method or product comprising a series of elements can not only include those defined elements, but also include other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0072] As understood in the same way as in the "Examination Guidelines", in the present application, the expressions "greater than", "less than", "exceed" and the like are understood as not including the number; the expressions "above", "below", "within" and the like are understood as including the number. In addition, in the description of the embodiments of the present application, the meaning of "multiple" is more than two (including two), and similar expressions related to "multiple" are also understood in this way, for example, "multiple groups", "multiple times" and the like, unless otherwise explicitly specified.

[0073] In the description of the embodiments of the present application, the spatially related expressions used, such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or the drawings, and are only for the convenience of describing the specific embodiments of the present application or for the reader to understand, and do not indicate or imply that the indicated device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0074] Unless otherwise explicitly specified or limited, in the description of the embodiments of the present application, the terms "mount", "connect", "connect", "fix", "set", and the like should be understood broadly. For example, the "connection" can be a fixed connection, or a detachable connection, or an integral setting; it can be a mechanical connection, or an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art to which the present application belongs, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0075] Please refer to Figures 1 to 8 The present embodiment provides a five-head steel bar bender for bending steel bars into predetermined-shaped workpieces. The five-head steel bar bender can automatically perform steel bar processing procedures such as pre-adjustment, traction, straightening, cutting, trimming and bending on steel bars, which can greatly improve the efficiency and quality of steel bar processing. For example,Figure 1 As shown, the five-head steel bar bender comprises a main frame 14, a traction mechanism, a straightening mechanism 3, a cutting mechanism 5, a trimming mechanism 17 and five steel bar bending heads. The main frame 14 is provided with a main track 13 along the length direction; the traction mechanism is used to move the steel bar axially; as Figure 1 As shown, the traction mechanism comprises a traction mechanism one 2 and a traction mechanism two 4, the traction mechanism one 2 is arranged at the front end of the main frame 14, and the traction mechanism two 4 is arranged at the middle rear section of the main frame 14. The traction mechanism one 2 and the traction mechanism two 4 are both driven by a traction power part 16. The traction power part 16 can be a motor, which is drivingly connected with the traction mechanism one 2 and the traction mechanism two 4 through a belt.

[0076] The main frame 14 is also provided with a hydraulic power part 15, which is used to provide driving force for the steel bar bending heads to bend the steel bar.

[0077] The straightening mechanism 3 is used to straighten the steel bar; a pre-adjusting mechanism 1 is arranged in front of the straightening mechanism 3, which comprises two oppositely arranged straightening wheels, the steel bar passes between the two straightening wheels and is preliminarily straightened by the straightening wheels, the preliminarily straightened steel bar is pulled by the traction mechanism to the straightening mechanism 3 for re-straightening, the straightening mechanism 3 comprises a straightening frame, a plurality of straightening rollers are arranged in the straightening frame along the length direction, the steel bar passes between the straightening rollers, the straightening rollers are rotated around the steel bar by the rotation of the straightening frame, so as to straighten the bent part of the steel bar (i.e. straighten).

[0078] The cutting mechanism 5 is arranged at the rear end of the straightening mechanism 3, which is used to cut the straightened steel bar according to the preset length.

[0079] The trimming mechanism 17 is arranged below the cutting mechanism 5, which is used to trim the steel bar falling into the receiving groove after cutting.

[0080] The five steel bar bending heads are arranged on the main frame 14 and can move along the main track 13. As Figure 1 As shown, the five steel bar bending heads are respectively

[0081] a first steel bar bending head 6, a second steel bar bending head 7, a third steel bar bending head 8, a fourth steel bar bending head 9 and a fifth steel bar bending head 10.

[0082] As Figure 2As shown, each of the reinforcing bar bending machine head comprises: a running mechanism 63, an inclined plate 632 and a bending mechanism 61. The bending mechanism 61 comprises: a bending oil cylinder 613, a bending disc 6114 and a supporting mandrel 611, the bending oil cylinder 613 is used to drive the bending disc 6114 to rotate around the supporting mandrel 611 to bend the reinforcing bar. The running mechanism 63 comprises: a running motor 633 and a clamping device, the running mechanism 63 is used to cooperate with the main track 13 and drive the reinforcing bar bending machine head to move along the main track 13.

[0083] The top of the running mechanism 63 is provided with wedge-shaped head plates 634, the inclined plates 632 are provided on the wedge-shaped head plates 634, the bending mechanisms 61 are provided on the inclined plates 632, and the inclination angles of the mounting surfaces of at least two of the wedge-shaped head plates 634 at the top are different, so that the inclination angles of at least two of the inclined plates 632 and the bending mechanisms 61 are different.

[0084] Each of the reinforcing bar bending machine heads is movably provided on the main track 13 through a sliding groove 631. During the reinforcing bar bending process, the positions of each of the reinforcing bar bending machine heads on the main track 13 can be adjusted as needed, for example, when the length of the reinforcing bar to be processed is relatively long, the spacing between adjacent two reinforcing bar bending machine heads can be appropriately increased. Figure 2 As shown, each of the reinforcing bar bending machine head comprises: a running mechanism 63, an inclined plate 632 and a bending mechanism 61. Among them, the running mechanism 63 is used to adjust the position of the reinforcing bar bending machine head on the main track 13. The running mechanism 63 comprises: a running motor 633 and a clamping device, the running mechanism 63 is used to cooperate with the main track 13 and drive the reinforcing bar bending machine head to move along the main track 13.

[0085] The bending mechanism 61 comprises: a bending oil cylinder 613, a bending disc 6114 and a supporting mandrel 611, the bending oil cylinder 613 is used to drive the bending disc 6114 to rotate around the supporting mandrel 611 to bend the reinforcing bar. During the reinforcing bar processing, the reinforcing bar is placed on the supporting mandrel 611, and then the bending disc 6114 is driven to rotate by the bending oil cylinder 613, the bending disc 6114 applies pressure to the reinforcing bar through the bending wheels thereon, so as to bend the reinforcing bar into a shape. Specifically, the bending disc 6114 is provided with a bending wheel 6113, the bending wheel 6113 contacts the reinforcing bar and applies pressure to make the reinforcing bar bend.

[0086] As shown, Figure 3As shown, the bending mechanism 61 further comprises a clamping seat body 6111 which is stacked with the bending disc 6114, and the supporting shaft 611 penetrates through the clamping seat body 6111 and extends out of the surface of the clamping seat body 6111. The clamping seat body 6111 is fixedly arranged, and cooperates with the supporting shaft 611 and the clamping sliding block 6112 to limit and clamp the steel bar from different directions.

[0087] The mounting surface at the top of the wedge-shaped head plate 634 is provided with a head angle adjusting device to adjust the inclination angle of the upper structure of the steel bar bending head. As shown in the specific structure of the head angle adjusting device. Figure 6 The head inclination angle adjusting device comprises a bottom plate 681, an angle adjusting plate 682, a hinge plate 683 and a screw adjusting assembly 684. The bottom plate 681 is used to fixedly mount the head inclination angle adjusting device on the main frame 14. The front and rear ends of the bottom plate 681 are provided with a first boss 6811 and a second boss 6812. The angle adjusting plate 682 is used to adjust the mounting angle of the bending head, one end of the angle adjusting plate 682 is hinged to one end of the hinge plate 683, the other end of the hinge plate 683 is hinged to the bottom plate 681, and the other end of the angle adjusting plate 682 is hinged to the bottom plate 681 through the screw adjusting assembly 684. The end of the hinge plate 683 close to the angle adjusting plate 682 is hinged to the angle adjusting plate 682 through a first hinge shaft 6831, and the end of the hinge plate 683 away from the angle adjusting plate 682 is hinged to the bottom plate 681 through a second hinge shaft. Therefore, the hinge plate 683 can swing around the second hinge shaft, and the angle adjusting plate 682 can swing around the first hinge shaft 6831. The screw adjusting assembly 684 comprises a screw shaft sleeve, an adjusting screw 6843 and a screw shaft sleeve.

[0088] One end of the screw shaft sleeve is provided with a cross pin 6841 which forms a T-shaped structure with the screw shaft sleeve, and the angle adjusting plate 682 is provided with a clearance hole 6821 corresponding to the end of the cross pin 6841. The screw shaft sleeve is hinged to the other end of the angle adjusting plate 682 through the cross pin 6841, and the two ends of the cross pin 6841 are arranged in a beveled sliding groove 6813. The beveled sliding groove 6813 is arranged on the bottom plate 681, and the beveled sliding groove 6813 is arranged inclinedly along the thickness direction of the bottom plate 681. In this embodiment, the beveled sliding groove 6813 is arranged along the length direction of the bottom plate 681 and is inclined along the thickness direction of the bottom plate 681. The beveled sliding groove 6813 is arranged on the side of the second boss 6812 close to the angle adjusting plate 682. The second boss 6812 is provided with two symmetrical beveled sliding grooves 6813 along the width direction, and the two ends of the cross pin 6841 are located in the corresponding beveled sliding grooves 6813.

[0089] The screw rod axle sleeve is threadedly connected with the adjusting screw rod 6843, and is circumferentially rotatably sleeved on the outer periphery of the adjusting screw rod 6843. The adjusting screw rod 6843 is hingedly connected with the bottom plate 681 through the screw rod axle sleeve. For example, the screw rod axle sleeve is rotatably arranged on the outer periphery of the adjusting screw rod 6843 through a rotating bearing. When the adjusting screw rod 6843 rotates, the axial positions of the adjusting screw rod 6843 and the screw rod axle sleeve are relatively fixed and unchanged, and the axial positions of the adjusting screw rod 6843 and the screw rod axle sleeve change with rotation. Therefore, when the adjusting screw rod 6843 rotates relative to the screw rod axle sleeve, the transverse pin 6841 and the other end of the angle adjusting plate 682 slide along the inclined surface sliding groove 6813, so as to drive the hinge plate 683 to swing to adjust the angle of the angle adjusting plate 682.

[0090] As shown in Figure 2 The top of the running mechanism 63 is provided with a wedge-shaped head plate 634, the inclined plates 632 are arranged on the wedge-shaped head plate 634, and the bending mechanisms 61 are arranged on the inclined plates 632. The inclined angles of at least two of the inclined plates 632 are different, so that at least two of the bending mechanisms 61 are located in different planes. In this embodiment, the inclined angles of the mounting surfaces of at least two of the wedge-shaped head plates 634 are different, so that the inclined angles of at least two of the inclined plates 632 are different.

[0091] In this embodiment, the wedge-shaped head bottom plates 681 can be designed to have different inclined angles to change the inclined angles of the bending planes of the bending mechanisms 61 in the reinforcement bending machine heads, so as to prevent collision of the reinforcement during bending, especially collision of the last reinforcement bending machine head.

[0092] Illustratively, the main frame 14 of the inclined reinforcement bending machine is provided with two reinforcement bending machine heads, one of which is referred to as a left machine head, and the other of which is referred to as a right machine head. The inclination numbers of the left machine head and the right machine head are different. The inclination numbers of the left machine head and the right machine head are different, which has the following advantages. First, the reinforcement is conveniently fed into the bending mechanism 61. Second, since the bending mechanism 61 adopts a downward bending mode, the reinforcement bending machine head is inclined at a certain angle, so that the reinforcement bending does not collide with the lower part. Third, the reinforcement bending machine head adopts different inclined angles, so that the reinforcement bending into a square shape does not collide with each other when the head and tail ends of the reinforcement are folded.

[0093] As shown in Figure 2 In this embodiment, the running mechanism 63 further includes a sub support body 66.

[0094] One end of the running mechanism 63 is supported on the main track 13 through a cushion seat, and is connected through a gear rack transmission. The other end of the running mechanism 63 is supported on the sub-track 12 through a sub-support body 66. The bottom of the sub-support body 66 is provided with a roller 67 matched with the sub-track 12.

[0095] The sub-support body 66 includes a transversely arranged cross arm and a vertically arranged support arm connected to the end of the cross arm. The roller 67 is arranged at the bottom of the support arm. The support arm is internally provided with a spring and an adjusting screw. One end of the spring is in abutment with the roller 67, and the other end is in abutment with the adjusting screw. The adjusting screw is used to adjust the friction between the roller 67 and the sub-track 12 through the spring.

[0096] In the embodiment, the positioning of the reinforcing bar bending machine head is controlled by a hydraulic cylinder to clamp and release. The running mechanism 63 adopts a two-end support mode. The two-end support can share the load of the reinforcing bar bending machine head, which is beneficial to improve the positioning accuracy of the support, disperse the load bearing weight of the track, make the running more stable and smooth, improve the positioning repeatability and the straightness of the running movement, and also prevent the running from being stuck during the single-side support movement.

[0097] When the overall machine head device needs to change position, the track wheel support frame is placed on the track at both ends, and the running motor 633 drives the overall machine head device to slide along the track to the specified position through gear rack transmission.

[0098] In the embodiment, the inclined reinforcing bar bending machine can process reinforcing bars of different lengths, angles, and shapes. Illustratively, the reinforcing bar bending needs the following steps: setting the program, moving the machine head (i.e., the reinforcing bar bending machine head) to the position (including detecting the position), locking and positioning the machine head, feeding the straightened reinforcing bar to the pre-bending position, pressing and bending the angle, detecting the angle, resetting the bending disc 6114 to release the reinforcing bar, retracting the flat-shaped support shaft 611, and releasing the reinforcing bar.

[0099] The bending mechanism 61 further includes an arc-shaped blanking support mechanism 62, which includes a blanking support inclined plate 622, a guide plate 623, and an L-shaped support arm 621. The L-shaped support arm 621 is slidably suspended on the main frame 14, and the inner side of the L-shaped support arm 621 is provided with two mutually perpendicular support bearings which are in sliding connection with the main frame 14.

[0100] The blanking support inclined plate 622 is obliquely arranged at the bottom of the L-shaped support arm 621, and the bottom of the blanking support inclined plate 622 is opposite to the support mandrel 611 of the bending mechanism 61, for guiding the steel bar to fall on the support mandrel 611. The guide plate 623 is arranged in parallel with the blanking support inclined plate 622. The equal-bent steel bar is placed on the L-shaped support arm 621 in advance, and then guided to fall on the support mandrel 611 along the blanking support inclined plate 622.

[0101] In the embodiment, the L-shaped support arm 621 is installed on the steel bar bending machine head through the fixed position. Two mutually perpendicular support bearings are arranged in the L-shaped support arm 621, and the support bearings are in contact with different surfaces of the material supporting position (which is a structure similar to the transversely arranged guide rod, parallel to the main track 13, and used for suspending the L-shaped support arm 621) on the main frame 14. Therefore, the L-shaped support arm 621 and the long material rack angle iron thereon can be supported through the support bearings, so as to prevent the L-shaped support arm 621 from sagging. At the same time, the support bearings can ensure that the material supporting position moves relatively with the L-shaped support arm 621 to generate relative rolling, thereby reducing the friction therebetween.

[0102] The blanking support inclined plate 622 is obliquely arranged, and the guide plate 623 is designed to limit the irregular movement of the steel bar on one hand, and guide the steel bar to smoothly fall on the support mandrel 611 on the other hand.

[0103] The bending mechanism 61 further comprises a steel bar automatic limiting mechanism, which is used for automatically clamping the steel bar when the steel bar enters the bending mechanism 61.

[0104] As shown in FIG. 1, Figure 3 In an embodiment, the support mandrel 611 is a flat shaft, and a plane 6110 for receiving the steel bar is arranged on the circumferential upper portion of the support mandrel 611. The plane can be provided with a tooth-shaped anti-skid pattern. The contact area of the flat shaft with the steel bar is larger, so that the steel bar is more stable on the support mandrel 611 during bending, and the friction with the supported steel bar is increased, thereby preventing slipping during bending.

[0105] In the embodiment, the support mandrel 611 is a flat shaft body, which comprises an end surface and a circumferential surface for supporting the steel bar, the side opposite to the clamping sliding block 6112 of the circumferential surface is a plane, that is, the steel bar supporting surface is a plane, and the magnet 6119 is arranged on the steel bar supporting surface of the flat shaft body. In the middle of the steel bar supporting surface, a groove matched with the shape of the magnet 6119 is arranged, and then the magnet 6119 is arranged in the groove. In this way, the magnet 6119 can be used to adsorb the steel bar on the steel bar supporting surface, and meanwhile, the magnet 6119 can be prevented from being damaged by the contact with the steel bar. In the embodiment, the support mandrel 611 is provided with the planar steel bar supporting surface, so that the contact area between the support mandrel 611 and the steel bar can be increased, and meanwhile, the magnet 6119 is arranged on the steel bar supporting surface, so that the steel bar can be reliably adsorbed, thereby improving the stability of the steel bar clamping.

[0106] In the above embodiment, the support mandrel 611 is connected with the telescopic oil cylinder 614 (in other embodiments, a telescopic air cylinder can also be used), which is used to drive the support mandrel 611 to extend and retract in the axial direction. When the steel bar bending is completed, the support mandrel 611 is controlled to retract by the telescopic oil cylinder 614, so that the steel bar falls off and leaves the support mandrel 611 and the bending disc 6114. When another steel bar needs to be bent, the telescopic oil cylinder 614 drives the support mandrel 611 to extend forward.

[0107] As shown in Figure 5 In the embodiment, a V-shaped groove 6118 is arranged in the middle of the steel bar supporting surface of the support mandrel 611, the V-shaped groove 6118 extends in the same direction as the steel bar, and the groove for assembling the magnet 6119 is located in the middle of the V-shaped groove 6118. When the steel bar falls into the support mandrel 611, the V-shaped groove 6118 contacts with the side surface of the steel bar, so as to limit the movement of the steel bar along the axial direction of the support mandrel 611, thereby playing a good steel bar limiting role and further improving the clamping stability of the steel bar on the support mandrel 611.

[0108] As shown in Figures 3 to 5 The steel bar automatic limiting mechanism comprises a spring, a clamping sliding block 6112, a transverse rack plate 6116, a longitudinal plate 6117 and a one-way rack 61162.

[0109] The clamping sliding block is slidably arranged in the concave groove on the middle shaft disc and can approach and move away from the support mandrel;

[0110] The spring abuts against the clamping sliding block and is used to provide a clamping force of the clamping sliding block to the support mandrel;

[0111] The clamping slider is provided with a mounting groove for accommodating the transverse rack plate and the longitudinal plate, which are stacked and connected by a bevel, including a bevel two 61161 provided on the inner surface of the transverse rack plate and a bevel one provided on the outer surface of the longitudinal plate, the bevel one and the bevel two are in abutment, and the longitudinal plate is provided with an engaging part matched with the one-way rack 61162; each tooth of the one-way rack is inclined towards the direction of the support shaft;

[0112] When the bending disc is in the initial position, the bending disc bearing is in abutment with the longitudinal plate, so that the longitudinal plate and the clamping slider are away from the support shaft;

[0113] When the bending disc rotates to press the steel bar, the bending disc bearing is separated from the longitudinal plate, the clamping slider moves to the support shaft to clamp the steel bar, the transverse rack plate moves to the one-way rack, so that the engaging part is engaged with the one-way rack to lock the clamping slider.

[0114] The length direction of the transverse rack plate and the length direction of the longitudinal plate are perpendicular to each other; one end of the length direction of the transverse rack plate is connected with the clamping slider platform, and the other end of the length direction of the transverse rack plate is provided with the engaging part;

[0115] The spring is in abutment with the top end of the clamping slider, and the bottom end of the clamping slider is provided with an anti-skid tooth for contacting the steel bar.

[0116] When the steel bar is placed on the support shaft 611 and the bending disc 6114 starts to rotate, the bending disc 6114 is separated from the longitudinal plate 6117, the rack on the right side of the transverse rack plate 6116 is separated, and the clamping slider 6112 automatically clamps the steel bar under the downward pressure of the spring (wherein the spring is arranged inside the spring cover 612), so that the steel bar can be prevented from deviating or falling off the support shaft 611 during bending.

[0117] In the embodiment, the telescopic oil cylinder 614 is arranged, so that the support shaft 611 can be axially extended, the steel bar is well stabilized and fixed, and the steel bar is conveniently separated when the support shaft 611 is retracted. When the support shaft 611 is driven by the telescopic oil cylinder 614 to extend, the steel bar slides from the material falling support inclined plate 622 and is horizontally arranged on the support shaft 611, the automatic limiting mechanism of the steel bar drives the bending disc 6114 to rotate and clamp the steel bar under the drive of the bending oil cylinder 613, the bending disc 6114 continues to rotate to make the steel bar be bent and formed, the encoder assembly 64 records the rotation angle, and when the required bending angle is reached, the rotary disc rotary drive mechanism releases the steel bar, the support shaft 611 is retracted, and the steel bar falls.

[0118] The reinforcing bar bender head is provided with an oil distribution block connected with the telescopic oil cylinder 614 and the bending oil cylinder 613, and used for distributing hydraulic oil for the telescopic oil cylinder 614 and the bending oil cylinder 613.

[0119] As shown in the figure, the cutting-off mechanism 5 is used for cutting the reinforcing bar, so that the reinforcing bar is cut into the required length, and then subsequent further processing is carried out. The cutting-off mechanism 5 comprises a cutting head frame body 51, a sliding seat 52 and a cutting knife 53. Figure 7

[0120] The cutting head frame body 51 is provided with two parallel track shafts 511, the sliding seat 52 is slidably arranged on the two track shafts 511, and the cutting knife 53 is fixed on the sliding seat 52. The cutting knife 53 comprises a cylinder body 531 and a piston rod 532 connected with the cylinder body 531 through a piston, and the front end of the piston rod 532 is provided with a blade 533. The outer periphery of the piston rod 532 is provided with a compression spring 535. Preferably, the blade 533 is a square blade 533. In other embodiments, the blade 533 can also be other shapes of blades 533 used for cutting the reinforcing bar. The extension direction of the two track shafts 511 is parallel to the direction of the reinforcing bar advancing, and the positions of the two track shafts 511 are arranged such that the front track shaft 511 is lower than the rear track shaft 511, so that the front end of the piston rod 532 is inclined downwardly, and the cut reinforcing bar can smoothly fall into the predetermined material collecting groove 513.

[0121] The cylinder body 531 drives the piston rod 532 to extend and retract through hydraulic oil, so that the blade 533 cuts the reinforcing bar. An oil passage is arranged between the piston rod 532 and the cylinder body 531, so that the hydraulic oil of the hydraulic system can drive the piston rod 532 to reciprocatingly extend and retract, thereby driving the blade 533 to perform the reinforcing bar cutting action. In this embodiment, the mounting plate is an L-shaped plate comprising a horizontal bottom plate and a vertical stand plate arranged at the end of the bottom plate, an arc-shaped groove is arranged on the stand plate and matched with the outer periphery shape of the cylinder body, the cylinder body is mounted on the mounting plate and the arc-shaped groove is matched with the outer periphery of the cylinder body; the front end of the U-shaped support is provided with an inclined guide plate 512 used for guiding the cut reinforcing bar into the reinforcing bar collecting groove.

[0122] The front end of the piston rod 532 is inclined downwardly, that is, when the reinforcing bar is cut, the blade 533 arranged at the front end of the piston rod 532 is inclined downwardly and advances, so that the reinforcing bar is also cut obliquely downwardly. Therefore, under the action of gravity, the cut reinforcing bar falls forwardly into the predetermined material collecting groove 513, so that the reinforcing bar is conveniently collected and arranged, and the reinforcing bar processing efficiency is improved.

[0123] ​The cutting-off knife 53 further comprises a knife seat fixedly arranged at the front end of the cylinder body 531, and a reinforcing bar guide sleeve 534 is arranged on the knife seat, through which the reinforcing bar is inserted to the front of the blade 533, and the blade 533 is movable relative to the reinforcing bar guide sleeve 534 to cut off the reinforcing bar. The blade 533 is located at one side of the knife seat, and the reinforcing bar guide sleeve 534 is located at the opposite side of the knife seat. After the reinforcing bar passes through the reinforcing bar guide sleeve 534, the square blade 533 is pushed by the piston rod 532 to complete the reinforcing bar cutting process. When cutting off the reinforcing bar, the reinforcing bar is pushed by the reinforcing bar pushing device after passing through the reinforcing bar guide sleeve 534, and the reinforcing bar pushing device cooperates with the cutting-off mechanism 5, and the reinforcing bar pushing device pushes the reinforcing bar by a preset length, and then the reinforcing bar is cut off by the cutting-off mechanism 5.

[0124] In this embodiment, the cutting-off mechanism 5 adopts a lightweight overall design, and the support mode and inclined layout of the cutting-off knife 53 are improved, which can reduce the overall impact force in the cutting head advancing process and reasonably balance the torque in this process. The slide base 52 comprises an L-shaped mounting plate comprising a bottom plate 681 and a vertical plate arranged at the end of the bottom plate 681. An arc-shaped groove matched with the outer shape of the cylinder body 531 is arranged on the vertical plate, and the cylinder body 531 is mounted on the mounting plate and abuts against the outer periphery of the cylinder body 531. The vertical plate and the bottom plate 681 can be fixed by welding, or the vertical plate and the bottom plate 681 are formed by bending a steel plate. The cylinder body 531 is fixed on the vertical plate by bolts or other fasteners. The front end and the rear end of the mounting plate are respectively provided with slide sleeves 521, the slide base 52 is slidably connected with the two track shafts 511 through the two slide sleeves 521, and the slide sleeve 521 located at the front end of the mounting plate is lower than the other slide sleeve 521, so that the slide base 52 is inclinedly arranged. The shape of the slide sleeve 521 is matched with the shape of the track rail, and in this embodiment, the slide base 52 only comprises an L-shaped mounting plate and two slide sleeves 521, which greatly reduces the overall weight of the cutting-off mechanism 5. The extension directions of the two track shafts 511 are the same as the advancing direction of the reinforcing bar, and are perpendicular to the extension direction of the piston rod 532. The torque generated by cutting is balanced on the two track shafts 511, so that the torque in the cutting process can be reasonably balanced.

[0125] As shown in Figure 8 The straightening mechanism 17 is installed on the reinforcing bar bending machine and is used for straightening the reinforcing bar dropped after cutting. Specifically, the straightening mechanism 17 is installed on the reinforcing bar receiving groove 11 below the cutting device of the reinforcing bar bending machine, the cut reinforcing bar falls into the reinforcing bar receiving groove 11, and the straightening plate 172 of the straightening mechanism 17 can be driven to move along the length direction of the reinforcing bar receiving groove 11, so as to automatically straighten the reinforcing bar in the reinforcing bar receiving groove 11, thereby facilitating the bending processing of the reinforcing bar by the reinforcing bar bending machine.

[0126] In the embodiment, the aligning mechanism 17 comprises a device frame 171, an aligning plate 172, a transmission reducer 176 and a position detection mechanism. The device frame 171 is installed on the reinforcing bar bending machine, and the aligning mechanism 17 is fixedly arranged on the reinforcing bar bending machine through the device frame 171. The device frame 171 can be made of steel, aluminum, aluminum alloy or other metals or alloys with certain strength.

[0127] The aligning plate 172 is arranged in front of the device frame 171, and is used to abut against the end of the reinforcing bar and push the reinforcing bar to move so that the ends of the reinforcing bars are aligned.

[0128] The transmission reducer 176 is fixedly arranged on the device frame 171 and connected with the aligning plate 172 through a main transmission shaft 177, and is used to drive the aligning plate 172 to move horizontally to abut against the end of the reinforcing bar so that the reinforcing bar is aligned. The transmission reducer 176 is the power source of the aligning plate 172, and provides power to the aligning plate 172 through the main transmission shaft 177, so that the aligning plate 172 moves in the length direction to align the reinforcing bar. Similar to the device frame 171, the aligning plate 172 can also be made of steel, aluminum, aluminum alloy or other metals or alloys with certain strength. In addition, the aligning plate 172 is perpendicular to the moving direction (i.e. the normal line of the aligning plate 172 is parallel to the moving direction), so that the large surface of the aligning plate 172 contacts with the end of the reinforcing bar. Specifically, the aligning plate 172 is arranged vertically, and the aligning plate 172 is driven to move horizontally by the main transmission shaft 177.

[0129] The position detection mechanism comprises a secondary transmission shaft 178, a position sensor 173 and a sensing sleeve 174. The secondary transmission shaft 178 is fixedly connected with the aligning plate 172 and follows the aligning plate 172, and the sensing sleeve 174 is fixedly arranged on the secondary transmission shaft 178. The position sensor 173 is arranged on the side of the secondary transmission shaft 178 and is used to identify the sensing sleeve 174 to detect whether the aligning plate 172 moves to the position.

[0130] The position sensor 173 is used to detect whether the aligning plate 172 moves to the position. When the position sensor 173 detects the sensing sleeve 174, it indicates that the aligning plate 172 is pushed out to the position, otherwise it indicates that the aligning plate 172 does not move to the position. Figure 1 As shown in the figure, the secondary transmission shaft 178 and the main transmission shaft 177 are arranged on the same side of the aligning plate 172 and are parallel to each other.

[0131] In the embodiment, the inductive sleeve 174 is a position-adjustable inductive sleeve 174, i.e. the position of the inductive sleeve 174 on the secondary transmission shaft 178 in the axial direction can be adjusted. The inductive sleeve 174 is a magnetic sleeve, and the position sensor 173 is a Hall sensor. The inductive sleeve 174 is adjustably sleeved on the secondary transmission shaft 178 in the axial direction, and is fixed to the secondary transmission shaft 178 by a fixing bolt. The fixing bolt is arranged in the radial direction of the secondary transmission shaft 178, and the end of the fixing bolt abuts against the side surface of the secondary transmission shaft 178 to fix the inductive sleeve 174. In other embodiments, the position sensor 173 can also be a photoelectric sensor or a microswitch, and the inductive sleeve 174 can be a light-blocking piece or a contact protrusion adapted to the microswitch.

[0132] In the embodiment, the top alignment mechanism 17 further comprises a reset tension spring 175, one end of which is fixed and the other end of which is connected to the top alignment plate 172, for pulling the top alignment plate 172 back to the initial position. In the embodiment, the end of the reset tension spring 175 away from the top alignment plate 172 is connected to a fixing piece, and the fixing piece is fixedly installed on the device frame body 171, so that the end of the reset tension spring 175 away from the top alignment plate 172 is fixed. When the top alignment plate 172 is driven to move forward by the primary transmission shaft 177, the reset tension spring 175 is elongated and elastically deformed. When the driving force of the primary transmission shaft 177 disappears, the top alignment plate 172 is pulled back to the initial position by the elastic force of the reset tension spring 175.

[0133] In the embodiment, in order to provide sufficient pulling force to the top alignment plate 172, two or more reset tension springs 175 are arranged in parallel in the device. Of course, in some embodiments, only one reset tension spring 175 with a larger elastic coefficient can be arranged.

[0134] When the transmission decelerator 176 of the top alignment mechanism 17 receives an operation instruction, the transmission decelerator 176 drives the primary transmission shaft 177 to move, and then drives the top alignment plate 172 to move forward. The secondary transmission shaft 178 follows the movement, and the secondary transmission shaft 178 plays a role in controlling the balance of the top alignment plate 172. The position sensor 173 and the inductive sleeve 174 can detect whether the top alignment plate 172 has moved to the position. When the position sensor 173 senses the inductive sleeve 174, it indicates that the top alignment plate 172 has reached the predetermined position, and the reinforcement bar top alignment is completed. At this time, the transmission decelerator 176 is powered off, the reset tension spring 175 pulls the top alignment plate 172 back to the initial position, and waits for the next instruction.

[0135] In the embodiment, the transmission decelerator 176 is in gear transmission with the main transmission shaft 177. The main transmission shaft 177 is provided with a transmission gear in the axial direction, and the output of the transmission decelerator 176 is provided with a gear which is in mesh with the transmission gear. The transmission decelerator 176 drives the gear to rotate, thereby moving the main transmission shaft 177 along the axial direction. In other embodiments, the main transmission shaft 177 and the transmission decelerator 176 can be connected by a transmission mechanism such as a belt pulley or a chain wheel which is conventional in the art. This is a conventional technical means in the art, and will not be described in detail here.

[0136] The transmission decelerator 176 comprises a driving mechanism and a decelerating mechanism which is in transmission connection with the driving mechanism. The driving mechanism comprises any one of an electric motor, a hydraulic motor and a pneumatic motor. The decelerating mechanism comprises any one of a worm gear decelerating mechanism, a gear set decelerating mechanism and a planetary gear decelerating mechanism. Preferably, in the embodiment, the driving mechanism of the transmission decelerator 176 is an electric motor, and the decelerating mechanism is a gear set decelerating mechanism.

[0137] Finally, it should be noted that the above embodiments have been described in the specification and drawings of the present application, but this does not limit the patent protection scope of the present application. Any equivalent structure or equivalent flow replacing or modifying the content described in the specification and drawings of the present application based on the essential concept of the present application, and directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, etc., are all included in the patent protection scope of the present application.

Claims

1. A five-head rebar bending machine, used to bend rebar into a workpiece of a predetermined shape, characterized in that, The utility model provides a steel bar bending machine, including: A main frame is provided with a main track in the length direction; A straightening mechanism is used for straightening the steel bar; A cutting mechanism is arranged at the rear end of the straightening mechanism and is used for cutting the straightened steel bar according to a preset length; Five steel bar bending machine heads are arranged on the main frame and can move along the main track, the steel bar bending machine head includes a running mechanism, an inclined plate and a bending mechanism; The bending mechanism includes a bending oil cylinder, a bending disc and a supporting mandrel, the bending oil cylinder is used to drive the bending disc to rotate around the supporting mandrel to bend the steel bar; The running mechanism includes a running motor and a clamping device, the running mechanism is used to cooperate with the main track and drive the steel bar bending machine head to move along the main track; The top of the running mechanism is provided with a wedge-shaped machine head plate, the inclined plate is arranged on the wedge-shaped machine head plate, the bending mechanism is arranged on the inclined plate, and the top of at least two wedge-shaped machine head plates is provided with a machine head angle adjusting device to adjust the inclination angles of the inclined plate and the bending mechanism.

2. The five-head rebar bender of claim 1, wherein, The bending mechanism further includes an arc-shaped material falling support mechanism, the arc-shaped material falling support mechanism includes a material falling support inclined plate, a guide plate and an L-shaped support arm; The inside of the L-shaped support arm is provided with a material rack for placing the steel bar, the L-shaped support arm is slidably suspended on the main frame, and the inside of the L-shaped support arm is provided with two mutually perpendicular support bearings, the support bearings are in sliding connection with the main frame; The material falling support inclined plate is arranged at the bottom of the L-shaped support arm in an inclined manner, and the bottom of the material falling support inclined plate is opposite to the supporting mandrel of the bending mechanism, so as to make the steel bar fall on the supporting mandrel, and the guide plate is arranged in parallel with the material falling support inclined plate.

3. The five-head rebar bender of claim 1 or 2, wherein, The running mechanism further includes a secondary support body; One end of the running mechanism is supported on the main track through a pad seat and is connected through a gear and a rack, the other end of the running mechanism is supported on a secondary track through the secondary support body, the secondary support body includes a transversely arranged cross arm and a vertically arranged support arm connected to the end of the cross arm, and the bottom of the support arm is provided with a roller.

4. The five-head rebar bender of claim 1, wherein, The supporting mandrel is connected with a telescopic oil cylinder through a shaft sleeve, the telescopic oil cylinder is used to drive the supporting mandrel to extend to receive the steel bar and to retract after each steel bar bending action to make the steel bar leave the supporting mandrel.

5. The five-head rebar bender of claim 4, wherein, The supporting mandrel is a flat shaft, and a plane for receiving the steel bar is arranged on the circumferential upper portion, a V-shaped groove is arranged in the middle of the plane, the length direction of the V-shaped groove is parallel to the axial direction of the steel bar, the two sides of the V-shaped groove are in abutment with the outer periphery of the steel bar, a sunken mounting hole is arranged in the middle of the V-shaped groove, a magnet is mounted in the mounting hole to attract the steel bar to the V-shaped groove.

6. The five-head rebar bender of claim 1, wherein, The cutting mechanism includes a cutting head frame body, a sliding seat and a cutting knife; The cutting knife is arranged on the sliding seat, the cutting knife includes a cylinder body and a piston rod connected with the cylinder body through a piston, and a blade is arranged at the front end of the piston rod; wherein the cylinder body drives the piston rod to extend or retract through hydraulic oil to make the blade cut the steel bar; The cutting head frame body comprises a U-shaped support provided with two parallel track shafts, the extension direction of the two track shafts is parallel to the direction of reinforcing bar pushing; the sliding seat comprises a mounting plate and two sliding sleeves; the two sliding sleeves are fixedly arranged at the front end and the rear end of the mounting plate, the sliding seat is slidably connected with the two track shafts through the two sliding sleeves, and the sliding sleeve at the front end of the mounting plate is lower than the other sliding sleeve, so that the front end of the sliding seat and the piston rod is downwardly inclined.

7. The five-head rebar bender of claim 6, wherein, The mounting plate is an L-shaped plate comprising a horizontally arranged bottom plate and a vertical plate arranged at the end of the bottom plate, an arc-shaped groove is arranged on the vertical plate and matched with the outer shape of the cylinder body, the cylinder body is mounted on the mounting plate and the arc-shaped groove is in abutment with the outer periphery of the cylinder body; the front end of the U-shaped support is provided with an inclined guide plate for guiding the cut reinforcing bar into the reinforcing bar collecting groove.

8. The five-head rebar bender of claim 1, wherein, The device further comprises a straightening mechanism arranged below the cutting mechanism and used for straightening the reinforcing bar falling into the collecting groove after being cut; The straightening mechanism comprises a device frame body mounted on the main frame of the reinforcing bar bending machine; A straightening plate is arranged in front of the device frame body; A transmission speed reducer is fixedly arranged on the device frame body and connected with the straightening plate through a main transmission shaft, and used for driving the straightening plate to move horizontally and abut against the end of the reinforcing bar, so that the reinforcing bar is straightened.

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