Five-head steel bar bender

Abstract

The invention 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 machine heads can be arranged on the main rack in a self-walking mode along the main track, and each steel bar bending machine 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, and in particular to a five-head steel bar bending machine. Background Art

[0002] In the fields of construction, steel bar processing is a basic and important task. The traditional hoop bending machine has a relatively simple function and can only realize the bending of steel bars. It is independent of the straightening machine. After the steel bars are straightened, they need to be manually transported and sorted, and placed on the hoop bending machine to complete the bending operation with manual assistance. This process not only consumes a lot of human resources, but also greatly increases the labor intensity of operators. At the same time, there are safety hazards, resulting in low processing efficiency.

[0003] In the straightening process, existing equipment often ignores the treatment of iron chips generated during the steel bar processing. The random scattering and accumulation of iron chips not only pollutes the working environment, but also may have an adverse impact on the operation of the equipment and the safety of operators.

[0004] Some so-called all-in-one machines cannot accurately deliver the steel bars to the designated position for subsequent bending after straightening. Moreover, before bending, it is difficult to achieve good alignment and fixation of the steel bars, resulting in uneven sizes of processed steel bars, frequent failures during processing, and a high scrap rate.

[0005] What is particularly prominent is that in the process of steel bar bending, there are many unreasonable aspects in the structural design of the bending machine head. When each bending machine head is bending the steel bar, it is very easy for the bending heads to collide with each other, which not only greatly increases the bending scrap rate, but also makes the equipment failure rate remain high. In addition, in the face of different bending size requirements, the adjustment of the bending machine head is extremely inconvenient, the positioning is inaccurate, and manual assistance is often still required to complete the bending forming, which seriously affects the processing efficiency and quality.

[0006] In addition, in a multi-head steel bar bending machine, the hydraulic system, circuit system and other pipelines are numerous and complex in layout. During the operation and processing of the machine head, these pipelines are very easy to intertwine and pull each other, which in turn causes pipeline damage and circuit breakage. This type of failure not only has a high incidence rate, but is also extremely difficult to troubleshoot and repair, greatly affecting the normal operation of the equipment and production progress. At the same time, the steel bars are in an irregular state after being cut, and need to be manually sorted and aligned before subsequent bending processing can be carried out, which further reduces the overall production efficiency and increases labor costs and labor intensity. Summary of the invention

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

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

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

[0010] A traction mechanism, used for pulling the steel bar to move axially;

[0011] A straightening mechanism, used for straightening the steel bars;

[0012] A cutting mechanism, arranged at the rear end of the straightening mechanism, for cutting the straightened steel bars according to a preset length;

[0013] A aligning mechanism is arranged below the cutting mechanism and is used to align the steel bars that fall into the receiving trough after cutting;

[0014] Five steel bar bending machine heads are arranged on the main frame and can move along the main track by themselves. The steel bar bending machine heads include: a running mechanism, an inclined plate and a bending mechanism;

[0015] The bending mechanism comprises: a bending cylinder, a bending disk and a supporting mandrel, wherein the bending cylinder is used to drive the bending disk to rotate around the supporting mandrel to bend the steel bar;

[0016] The positioning mechanism comprises: a positioning motor and a clamping device, and the positioning mechanism is used to cooperate with the main track and drive the steel bar bending machine head to move along the main track;

[0017] A wedge-shaped head plate is arranged on the top of the running mechanism, the inclined plate is inclinedly arranged on the wedge-shaped head plate, the bending mechanism is arranged on the inclined plate, and the inclination angles of the mounting surfaces on the tops of at least two of the wedge-shaped head plates are different, so as to achieve different inclination angles of at least two inclined plates.

[0018] Furthermore, the bending mechanism further comprises an arched blanking support mechanism, and the arched blanking support mechanism comprises: a blanking support inclined plate, a guide plate and an L-shaped support arm;

[0019] A material rack for placing steel bars is arranged on the inner side of the L-shaped support arm, the L-shaped support arm can be slidably suspended on the main frame, and two mutually perpendicular support bearings are arranged on the inner side of the L-shaped support arm, and the support bearings are slidably connected to the main frame;

[0020] The material dropping support inclined plate is obliquely arranged at the bottom of the L-shaped support arm, and the bottom of the material dropping support inclined plate is opposite to the support core shaft of the bending mechanism, so as to make the steel bars fall onto the support core shaft, and the guide plate is arranged parallel to the material dropping support inclined plate.

[0021] Furthermore, the running mechanism also includes a secondary support body;

[0022] One end of the running mechanism is supported on the main track through a cushion seat and is connected by a gear rack transmission. The other end of the running mechanism is supported on the secondary track through a 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. The roller is arranged at the bottom of the support arm.

[0023] Furthermore, the support core shaft is connected to a telescopic cylinder through a coupling sleeve, and the telescopic cylinder is used to drive the support core shaft to extend to receive the steel bars, and to retract after each steel bar bending action is completed to allow the steel bars to leave the support core shaft.

[0024] Furthermore, the supporting core shaft is a flat shaft, and a plane for receiving the steel bar is provided on the upper circumferential part, a V-shaped groove is provided in the middle of the plane, the length direction of the V-shaped groove is parallel to the axial direction of the steel bar, and both sides of the V-shaped groove are against the outer circumference of the steel bar, and a sunken mounting hole is provided in the middle of the V-shaped groove, and a magnet is installed in the mounting hole to attract the steel bar to the V-shaped groove.

[0025] Furthermore, the steel bar bending machine head also includes a pre-clamping assembly, which includes: a spring, a clamping slider, a transverse rack plate, a longitudinal plate and a one-way rack;

[0026] The clamping slider is slidably disposed in the concave groove on the center axis disk, and can move closer to or farther from the supporting core shaft;

[0027] The spring abuts against the clamping slide block and is used to provide the clamping slide block with a clamping force directed toward the supporting mandrel;

[0028] The clamping slider is provided with a mounting groove to accommodate the transverse rack plate and the longitudinal plate, the transverse rack plate and the longitudinal plate are stacked and connected by an inclined surface, the inclined surface includes an inclined surface 2 arranged on the inner surface of the transverse rack plate and an inclined surface 1 arranged on the outer surface of the longitudinal plate, the inclined surface 1 and the inclined surface 2 are abutted against each other, and the longitudinal plate is provided with a meshing portion adapted to the one-way rack; each tooth of the one-way rack is inclined toward the direction where the supporting core shaft is located;

[0029] When the bending disk is in the initial position, the bending disk bearing abuts against the longitudinal plate, so that the longitudinal plate and the clamping slider are away from the supporting mandrel;

[0030] When the bending disk rotates to apply pressure to the steel bar, the bending disk bearing separates from the longitudinal plate, the clamping slider moves toward the supporting core shaft to clamp the steel bar, and the transverse rack plate moves toward the one-way rack to make the meshing portion mesh with the one-way rack to lock the clamping slider.

[0031] Furthermore, 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 transverse rack plate in the length direction is connected to the clamping slider platform, and the other end of the transverse rack plate in the length direction is provided with the meshing portion.

[0032] The spring abuts against the top end of the clamping slider, and the bottom end of the clamping slider is provided with anti-slip teeth for contacting the steel bar.

[0033] Furthermore, the cutting mechanism comprises: a cutting head frame, a slide seat and a cutting knife;

[0034] The cutting knife is arranged on the slide seat, and comprises a cylinder body and a piston rod connected to 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 and retract through hydraulic oil, so that the blade cuts the steel bar;

[0035] The cutting head frame includes a U-shaped bracket, on which two parallel track shafts are arranged, and the extension direction of the two track shafts is parallel to the direction in which the steel bars are pushed; the slide seat includes 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, and the slide seat is slidably connected to 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 slide seat and the front end of the piston rod are arranged to be tilted downward.

[0036] Furthermore, the mounting plate is an L-shaped plate, including a horizontally arranged bottom plate and a vertical plate arranged vertically at the end of the bottom plate, the vertical plate is provided with an arc groove adapted to the outer peripheral shape of the cylinder body, the cylinder body is mounted on the mounting plate and the arc groove is against the outer periphery of the cylinder body; the front end of the U-shaped bracket is provided with an inclined material guide plate, and the inclined material guide plate is used to guide the cut steel bars into the steel bar receiving trough.

[0037] Furthermore, the aligning mechanism comprises: a device frame, which is installed on the main frame of the steel bar bending machine;

[0038] A top plate, arranged in front of the device frame;

[0039] The transmission reducer is fixed on the device frame and connected to the top-aligning plate through the main transmission shaft, and is used to drive the top-aligning plate to move horizontally to abut against the end of the steel bar, so that the steel bar is top-aligned.

[0040] Different from the prior art, the five-head steel bar bending machine of the above technical solution includes a traction mechanism, a straightening mechanism, a cutting mechanism, an aligning mechanism and five steel bar bending machine heads, which can automatically perform steel bar straightening, cutting, aligning and bending processing, with a high degree of automation and high steel bar processing efficiency. In addition, the five steel bar bending machine heads can be arranged on the main frame along the main track, and the inclination angles of the mounting surfaces on the tops of at least two of the wedge-shaped machine head plates are different, so that the inclination angles of at least two of the inclined plates and the bending mechanism are different, thereby avoiding mutual interference between two adjacent steel bar bending machines during processing, and improving the yield rate of steel bar processing.

[0041] The above-mentioned records related to the invention content are only an overview of the technical solution of the present application. In order to enable ordinary technicians in the field to more clearly understand the technical solution of the present application, and then implement it according to the text of the specification and the contents recorded in the drawings, and to make the above-mentioned purpose and other purposes, features and advantages of the present application easier to understand, the following is an explanation in combination with the specific implementation mode and drawings of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of the present invention and other related contents, and shall not be considered as limiting the present application.

[0043] In the drawings of the specification:

[0044] Figure 1 It is a structural schematic diagram of the five-head steel bar bending machine described in the specific implementation method;

[0045] Figure 2 It is a structural schematic diagram of the steel bar bending machine head described in the specific implementation method;

[0046] Figure 3 It is a structural schematic diagram of the bending mechanism described in the specific implementation method;

[0047] Figure 4 It is a structural schematic diagram of the inner side of the transverse rack plate described in the specific implementation method;

[0048] Figure 5 It is a schematic diagram of the partial structure of the bending mechanism described in the specific implementation method;

[0049] Figure 6 It is a structural schematic diagram of the angle adjustment device described in the specific implementation method;

[0050] Figure 7 It is a structural schematic diagram of the truncation mechanism described in the specific implementation method;

[0051] Figure 8 It is a structural schematic diagram of the aligning mechanism described in the specific implementation method;

[0052] The reference numerals in the above drawings are described as follows:

[0053] 1. Pre-adjustment mechanism; 2. Traction mechanism 1; 3. Straightening mechanism; 4. Traction mechanism 2; 5. Cutting mechanism; 6. First steel bar bending machine head; 7. Second steel bar bending machine head; 8. Third steel bar bending machine head; 9. Fourth steel bar bending machine head; 10. Fifth steel bar bending machine head; 11. Steel bar receiving trough; 12. Auxiliary track; 13. Main track; 14. Main frame; 15. Hydraulic power unit; 16. Traction power unit; 17. Alignment mechanism;

[0054] 51. Cutting head frame; 52. Sliding seat; 53. Cutting knife;

[0055] 511, track shaft; 512, material guide plate; 513, material receiving trough;

[0056] 521, sliding sleeve; 531, cylinder body; 532, piston rod; 533, blade; 534, steel bar guide sleeve; 535, compression spring;

[0057] 61. Bending mechanism;

[0058] 611, support mandrel; 6110, plane for receiving steel bars; 6111, clamping seat; 6112, clamping slider; 6113, bending wheel; 6114, bending plate; 6116, transverse rack plate; 6117, longitudinal plate; 6118, V-shaped groove; 6119, magnet; 61161, inclined plane 2; 61162, one-way rack;

[0059] 612, spring cover; 613, bending cylinder;

[0060] 614, telescopic cylinder;

[0061] 62. Bow-shaped blanking support mechanism;

[0062] 621, L-shaped support arm; 622, blanking support inclined plate; 623, guide plate;

[0063] 63. Running mechanism; 631. Slide;

[0064] 632, tilting plate; 633, running motor; 634, wedge-shaped head plate;

[0065] 64. Encoder assembly; 66. Auxiliary support body; 67. Roller.

[0066] 681, bottom plate; 6811, first boss; 6812, second boss; 6813, inclined sliding groove; 682, angle adjustment plate; 6821, avoidance hole; 683, hinge plate; 6831, first hinge axis; 684, screw adjustment assembly; 6841, cross pin; 6843, adjustment screw;

[0067] 171. Device frame; 172. Top plate; 173. Position sensor; 174. Induction sleeve; 175. Reset spring; 176. Transmission reducer; 177. Main transmission shaft; 178. Auxiliary transmission shaft; DETAILED DESCRIPTION

[0068] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed 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 are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0069] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0070] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0071] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0072] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0073] Without further limitations, in this application, the words "include", "comprises", "has" or other similar open-ended expressions used in sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0074] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0075] In the description of the embodiments of the present application, space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the referred 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.

[0076] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0077] See also Figures 1 to 8 This embodiment provides a five-head steel bar bending machine for bending steel bars into workpieces of predetermined shapes. The five-head steel bar bending machine can automatically perform steel bar processing procedures such as pre-adjustment, pulling, straightening, cutting, aligning and bending on steel bars, which can greatly improve the efficiency and quality of steel bar processing. Figure 1 As shown, the five-head steel bar bending machine includes a main frame 14, a traction mechanism, a straightening mechanism 3, a cutting mechanism 5, a top alignment mechanism 17 and five steel bar bending machine heads. The main frame 14 is provided with a main track 13 along the length direction; the traction mechanism is used to pull the steel bar to move axially; Figure 1 As shown, the traction mechanism includes a traction mechanism 1 2 and a traction mechanism 2 4. The traction mechanism 1 2 is arranged at the front end of the main frame 14, and the traction mechanism 2 4 is arranged at the middle and rear section of the main frame 14. The traction mechanism 1 2 and the traction mechanism 2 4 are both powered by a traction power unit 16. The traction power unit 16 can be a motor, which is connected to the traction mechanism 1 2 and the traction mechanism 2 4 through a belt.

[0078] A hydraulic power unit 15 is also provided on the main frame 14, and the hydraulic power unit 15 is used to provide a driving force for the steel bar bending machine head to bend the steel bars.

[0079] The straightening mechanism 3 is used to straighten the steel bars; a pre-adjusting mechanism 1 is arranged in front of the straightening mechanism 3, and the pre-adjusting mechanism 1 includes two straightening wheels arranged opposite to each other. The steel bars pass between the two straightening wheels and are preliminarily straightened by the straightening wheels. After the preliminarily straightening, the steel bars are pulled to the straightening mechanism 3 by a traction mechanism for further straightening. The straightening mechanism 3 includes an adjustable straightening frame, and a plurality of groups of straightening rollers are arranged in the straightening frame along the length direction. The steel bars pass between the straightening rollers, and the straightening rollers are driven by the rotation of the straightening frame to rotate around the steel bars in a circumferential direction, thereby straightening the bent parts of the steel bars (i.e., straightening).

[0080] The cutting mechanism 5 is arranged at the rear end of the straightening mechanism 3 and is used to cut the straightened steel bars according to a preset length.

[0081] The aligning mechanism 17 is arranged below the cutting mechanism 5 and is used for aligning the steel bars that fall into the receiving trough after being cut.

[0082] Five steel bar bending machine heads can be arranged on the main frame 14 and can move along the main track 13 by themselves. Figure 1 As shown, the five steel bar bending machine heads are

[0083] The first steel bar bending machine head 6 , the second steel bar bending machine head 7 , the third steel bar bending machine head 8 , the fourth steel bar bending machine head 9 and the fifth steel bar bending machine head 10 .

[0084] like Figure 2As shown, each of the steel bar bending machine heads includes: a running mechanism 63, an inclined plate 632 and a bending mechanism 61. The bending mechanism 61 includes: a bending cylinder 613, a bending disk 6114 and a supporting mandrel 611, and the bending cylinder 613 is used to drive the bending disk 6114 to rotate around the supporting mandrel 611 to bend the steel bar. The running mechanism 63 includes: a running motor 633 and a clamping device, and the running mechanism 63 is used to cooperate with the main track 13 and drive the steel bar bending machine head to move along the main track 13.

[0085] A wedge-shaped head plate 634 is provided on the top of the running mechanism 63, the inclined plate 632 is inclinedly provided on the wedge-shaped head plate 634, the bending mechanism 61 is provided on the inclined plate 632, and the inclination angles of the mounting surfaces on the tops of at least two of the wedge-shaped head plates 634 are different, so that the inclination angles of at least two of the inclined plates 632 and the bending mechanism 61 are different.

[0086] Each of the steel bar bending machine heads is movably arranged on the main track 13 through the slide slot 631. During the steel bar bending process, the position of each steel bar bending machine head on the main track 13 can be adjusted as needed. For example, when the steel bar to be processed is long, the distance between two adjacent steel bar bending machine heads can be appropriately increased. Figure 2 As shown, the steel bar bending machine head includes: a running mechanism 63, an inclined plate 632 and a bending mechanism 61. The running mechanism 63 is used to adjust the position of the steel bar bending machine head on the main track 13. The running mechanism 63 includes: a running motor 633 and a clamping device, and the running mechanism 63 is used to cooperate with the main track 13 and drive the steel bar bending machine head to move along the main track 13.

[0087] The bending mechanism 61 includes: a bending cylinder 613, a bending disk 6114 and a support mandrel 611. The bending cylinder 613 is used to drive the bending disk 6114 to rotate around the support mandrel 611 to bend the steel bar. When processing the steel bar, the steel bar is placed on the support mandrel 611, and then the bending cylinder 613 drives the bending disk 6114 to rotate. The bending disk 6114 applies pressure to the steel bar through the bending wheel thereon, thereby bending the steel bar into shape. Specifically, a bending wheel 6113 is provided on the bending disk 6114, and the bending wheel 6113 contacts the steel bar and applies pressure to bend the steel bar.

[0088] like Figure 3As shown, the bending mechanism 61 also includes a clamping seat 6111, which is stacked with a bending disk 6114, and a support mandrel 611 passes through the clamping seat 6111 and extends out of the surface of the clamping seat 6111. The clamping seat 6111 is fixedly arranged, and the clamping seat 6111 cooperates with the support mandrel 611 and the clamping slider 6112 to limit the steel bars from different directions and clamp the steel bars.

[0089] Among them, the mounting surface on the top of the wedge-shaped head plate 634 is equipped with a head angle adjustment device to adjust the inclination angle of the upper structure of the steel bar bending head. Figure 6 The figure shows the specific structure of the machine head angle adjustment device. The machine head tilt angle adjustment device includes: a base plate 681, an angle adjustment plate 682, a hinge plate 683 and a screw adjustment assembly 684. Among them, the base plate 681 is used to fix the machine head tilt angle adjustment device on the main frame 14. The front and rear ends of the base plate 681 are provided with a first boss 6811 and a second boss 6812. The angle adjustment plate 682 is used to adjust the installation angle of the bending head, one end of the angle adjustment plate 682 is hinged to one end of the hinge plate 683, the other end of the hinge plate 683 is hinged to the base plate 681, and the other end of the angle adjustment plate 682 is hinged to the base plate 681 through a screw adjustment assembly 684. The end of the hinge plate 683 close to the angle adjustment plate 682 is hinged to the angle adjustment plate 682 through the first hinge shaft 6831; the end of the hinge plate 683 away from the angle adjustment plate 682 is hinged to the bottom plate 681 through the second hinge shaft. Therefore, the hinge plate 683 can swing around the second hinge shaft, and the angle adjustment plate 682 can swing around the first hinge shaft 6831. The screw adjustment assembly 684 includes a screw shaft nut, an adjustment screw 6843 and a screw shaft sleeve.

[0090] A transverse pin 6841 is provided at one end of the screw shaft nut, and the transverse pin 6841 and the screw shaft nut form a T-shaped structure. The angle adjustment plate 682 is provided with an avoidance hole 6821 corresponding to the end of the transverse pin 6841. The screw shaft nut is hinged to the other end of the angle adjustment plate 682 through the transverse pin 6841, and the two ends of the transverse pin 6841 are arranged in the inclined sliding groove 6813; the inclined sliding groove 6813 is arranged on the bottom plate 681, and the inclined sliding groove 6813 is inclined along the thickness direction of the bottom plate 681. In this embodiment, the inclined 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 inclined sliding groove 6813 is arranged on the side of the second boss 6812 close to the angle adjustment plate 682. In addition, the second boss 6812 is provided with two mutually symmetrical inclined sliding grooves 6813 along the width direction, and both ends of the transverse pin 6841 are located in the corresponding inclined sliding grooves 6813 .

[0091] The screw shaft nut is threadedly connected to the adjusting screw 6843, and the screw shaft sleeve is rotatably sleeved on the outer periphery of the adjusting screw 6843, and the adjusting screw 6843 is hinged to the base plate 681 through the screw shaft sleeve. For example, the screw shaft sleeve is rotatably arranged on the outer periphery of the adjusting screw 6843 through a rotating bearing. Among them, when the adjusting screw 6843 rotates, the axial positions of the adjusting screw 6843 and the screw shaft sleeve are relatively fixed, and the axial positions of the adjusting screw 6843 and the screw shaft nut will change with the rotation. Therefore, when the adjusting screw 6843 rotates relative to the screw shaft nut, the other end of the cross pin 6841 and the angle adjustment plate 682 slides along the inclined sliding groove 6813, thereby driving the hinge plate 683 to swing to adjust the angle of the angle adjustment plate 682.

[0092] like Figure 2 As shown, a wedge-shaped head plate 634 is disposed on the top of the running mechanism 63, the inclined plate 632 is inclinedly disposed on the wedge-shaped head plate 634, and the bending mechanism 61 is disposed on the inclined plate 632. At least two of the inclined plates 632 have different inclination angles, so that at least two of the bending mechanisms 61 are located in different planes. In this embodiment, the inclination angles of the mounting surfaces on the tops of at least two of the wedge-shaped head plates 634 are different, so that at least two of the inclined plates 632 have different inclination angles.

[0093] In this embodiment, the wedge-shaped head bottom plate 681 can be designed with different inclination angles to change the inclination angle of the bending plane of the bending mechanism 61 in the steel bar bending head to prevent collision when the steel bars are bent, especially at the last steel bar bending head.

[0094] Schematically, two steel bar bending heads are arranged on the main frame 14 of the inclined steel bar bending machine, one of which is called the left head and the other is called the right head; wherein, the inclination degree of the left head is inconsistent with the inclination degree of the right head. The advantages of the different inclination degrees of the left head and the right head include: first, it is convenient for the steel bar to enter the bending mechanism 61. Secondly, since the bending mechanism 61 adopts a downward bending method, the steel bar bending head is tilted at a certain angle so that the steel bar bending will not collide with the lower part. Thirdly, the steel bar bending head adopts different inclination angles so that the steel bars are bent into square ends and the tail steel bars are closed without colliding with each other.

[0095] like Figure 2 As shown, in this embodiment, the running mechanism 63 also includes a secondary support body 66.

[0096] One end of the running mechanism 63 is supported on the main track 13 through a cushion seat and connected by a gear rack transmission. The other end of the running mechanism 63 is supported on the auxiliary track 12 through an auxiliary support body 66. The bottom of the auxiliary support body 66 is provided with a roller 67 adapted to the auxiliary track 12.

[0097] Among them, the auxiliary support body 66 includes a laterally 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, and a spring and an adjusting screw are arranged inside the support arm. One end of the spring is against the roller 67 and the other end is against the adjusting screw. The adjusting screw is used to adjust the friction between the roller 67 and the auxiliary track 12 through the spring.

[0098] In this embodiment, the positioning of the steel bar bending machine head adopts a hydraulic cylinder to control clamping and loosening. And the running mechanism 63 adopts a two-end support method. The two-end support can share the load of the steel bar bending machine head, which is conducive to improving the position accuracy of the support, dispersing the load-bearing weight of the track, making the movement more stable and smooth, improving the positioning repeatability accuracy and the straightness of the running movement, and also preventing the movement jam of the unilateral support movement process.

[0099] When the overall head device needs to change position, the two ends of the track wheel support frame are placed on the track respectively, and the overall head device is driven by the running motor 633 through the gear rack transmission to slide along the track to the specified position.

[0100] In this embodiment, the inclined steel bar bending machine can process steel bars of different lengths, angles and shapes. Schematically, steel bar bending requires the following steps: setting the program, moving the machine head (i.e., the steel bar bending machine head) to a position (including detecting the position), locking the machine head to position, the straightened steel bar entering the pre-bending position, pressing and bending the angle, detecting the angle, resetting the bending disk 6114, loosening the steel bar to shrink the flat support mandrel 611, and causing the steel bar to fall off.

[0101] The bending mechanism 61 further includes an arched blanking support mechanism 62, which includes a blanking support inclined plate 622, a guide plate 623 and an L-shaped support arm 621. A material rack for placing steel bars is disposed inside the L-shaped support arm 621, the L-shaped support arm 621 is slidably suspended on the main frame 14, and two mutually perpendicular support bearings are disposed inside the L-shaped support arm 621, and the support bearings are slidably connected to the main frame 14.

[0102] The material drop support inclined plate 622 is obliquely arranged at the bottom of the L-shaped support arm 621, and the bottom of the material drop support inclined plate 622 is opposite to the support mandrel 611 of the bending mechanism 61, so as to make the steel bar drop onto the support mandrel 611, and the guide plate 623 is arranged parallel to the material drop support inclined plate 622. The steel bar to be bent is placed on the L-shaped support arm 621 in advance, and then guided along the material drop support inclined plate 622 to drop onto the support mandrel 611.

[0103] In this embodiment, the L-shaped support arm 621 is installed on the steel bar bending machine head through a fixed position. Two mutually perpendicular support bearings are arranged in the L-shaped support arm 621, and the support bearings are against different surfaces of the support position on the main frame 14 (its structure is a horizontally arranged guide rod, parallel to the main track 13, used to suspend the L-shaped support arm 621), so the L-shaped support arm 621 and the long material rack angle iron thereon can be supported by the support bearing to prevent the L-shaped support arm 621 from sagging. At the same time, the support bearing can ensure that the support position and the L-shaped support arm 621 produce relative rolling when they move relative to each other, reducing the friction between them.

[0104] The material dropping support inclined plate 622 is inclined, and the guide plate 623 is designed to restrict the irregular movement of the steel bars on the one hand, and to guide the steel bars to drop smoothly onto the supporting core shaft 611 together with the material dropping support inclined plate 622 on the other hand.

[0105] The bending mechanism 61 further includes a steel bar automatic limiting mechanism, which is used to automatically clamp the steel bar when the steel bar enters the bending mechanism 61 .

[0106] like Figure 3 As shown, in one embodiment, the support mandrel 611 is a flat shaft, and a plane 6110 for receiving the steel bar is provided on the upper part of the support mandrel 611 in the circumferential direction, and the plane may be provided with toothed anti-skid patterns. The flat shaft has a larger contact area with the steel bar, so that the steel bar is more stable on the support mandrel 611 when bending, and the friction with the supported steel bar is increased to prevent slipping during the bending process.

[0107] In this embodiment, the support mandrel 611 is a flat shaft body, and the flat shaft body includes an end face and a peripheral side face for supporting the steel bar, and the side of the peripheral side face opposite to the clamping slider 6112 is a plane, that is, the steel bar support surface is a plane; and the position of the magnet 6119 is adjusted, and the magnet 6119 is set on the steel bar support surface of the flat shaft body. Among them, a groove matching the shape of the magnet 6119 is set in the middle of the steel bar support surface, and then the magnet 6119 is set in the groove. In this way, the steel bar can be adsorbed on the steel bar support surface by the magnet 6119, and at the same time, the steel bar can be prevented from contacting with the magnet 6119 to damage the magnet 6119. In this embodiment, the support mandrel 611 is provided with a flat steel bar support surface, which can increase the contact area between the support mandrel 611 and the steel bar, and at the same time, the magnet 6119 is set on the steel bar support surface, which can reliably adsorb the steel bar, thereby improving the stability of the steel bar clamping.

[0108] In the above embodiment, the support core shaft 611 is connected to a telescopic cylinder 614 (a telescopic air cylinder may also be used in other embodiments). The telescopic cylinder 614 is used to drive the support core shaft 611 to extend and retract axially. When the bending of the steel bar is completed, the telescopic cylinder 614 controls the support core shaft 611 to retract, so that the steel bar falls off the support core shaft 611 and the bending disk 6114; when another steel bar needs to be bent, the telescopic cylinder 614 drives the support core shaft 611 to extend forward.

[0109] like Figure 5 As shown, in this embodiment, a V-shaped groove 6118 is provided in the middle of the steel bar support surface of the support mandrel 611. The direction in which the V-shaped groove 6118 extends is the same as the direction of 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 the side of the steel bar, thereby limiting the axial movement of the steel bar along the support mandrel 611, playing a good role in limiting the position of the steel bar, and further improving the clamping stability of the steel bar on the support mandrel 611.

[0110] like Figures 3 to 5 As shown, the steel bar automatic limiting mechanism includes a spring, a clamping slider 6112, a transverse rack plate 6116, a longitudinal plate 6117 and a one-way rack 61162.

[0111] The clamping slider is slidably disposed in the concave groove on the center shaft plate, and can move closer to or farther from the supporting core shaft;

[0112] The spring abuts against the clamping slide block and is used to provide the clamping slide block with a clamping force directed toward the supporting mandrel;

[0113] The clamping slider is provided with a mounting groove to accommodate the transverse rack plate and the longitudinal plate, the transverse rack plate and the longitudinal plate are stacked and connected by an inclined surface, the inclined surface includes an inclined surface 2 61161 provided on the inner surface of the transverse rack plate and an inclined surface 1 provided on the outer surface of the longitudinal plate, the inclined surface 1 and the inclined surface 2 are abutted against each other, and the longitudinal plate is provided with a meshing portion adapted to the one-way rack 61162; each tooth of the one-way rack is inclined toward the direction where the supporting core shaft is located;

[0114] When the bending disk is in the initial position, the bending disk bearing abuts against the longitudinal plate, so that the longitudinal plate and the clamping slider are away from the supporting mandrel;

[0115] When the bending disk rotates to apply pressure to the steel bar, the bending disk bearing separates from the longitudinal plate, the clamping slider moves toward the supporting core shaft to clamp the steel bar, and the transverse rack plate moves toward the one-way rack to make the meshing portion mesh with the one-way rack to lock the clamping slider.

[0116] 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 transverse rack plate in the length direction is connected to the clamping slider platform, and the other end of the transverse rack plate in the length direction is provided with the meshing portion;

[0117] The spring abuts against the top end of the clamping slider, and the bottom end of the clamping slider is provided with anti-slip teeth for contacting the steel bar.

[0118] When the steel bar is placed on the supporting core shaft 611 and the bending disk 6114 starts to rotate, the bending disk 6114 separates from the longitudinal plate 6117, the rack on the right side of the transverse rack plate 6116 separates, and the clamping slider 6112 slides downward under the downward pressure of the spring (where the spring is arranged inside the spring cover 612) to automatically clamp the steel bar, thereby preventing the steel bar from deviating or falling off the supporting core shaft 611 during the bending process.

[0119] In this embodiment, a telescopic oil cylinder 614 is provided so that the support mandrel 611 can be extended axially, which can stabilize and fix the steel bar well, and facilitate the steel bar to be detached when retracted. When the support mandrel 611 is extended by the telescopic oil cylinder 614, the steel bar slides from the blanking support inclined plate 622 and straddles the support mandrel 611. The steel bar automatic limit mechanism drives the bending disk 6114 to rotate and clamp the steel bar when the bending oil cylinder 613 drives the bending disk 6114 to rotate and fix the steel bar. The bending disk 6114 continues to rotate to bend the steel bar. The encoder assembly 64 starts to record the rotation angle. After reaching the required bending angle, the turntable rotates to drive the mechanism to release the steel bar, the support mandrel 611 retracts, and the steel bar falls.

[0120] The steel bar bending machine head is provided with an oil distribution block, which is connected to the telescopic cylinder 614, the bending cylinder 613, etc., and is used to distribute hydraulic oil to the telescopic cylinder 614 and the bending cylinder 613.

[0121] like Figure 7 As shown, the cutting mechanism 5 is used to cut the steel bar into a required length, and then perform further processing. The cutting mechanism 5 comprises: a cutting head frame 51, a slide 52 and a cutting knife 53.

[0122] Wherein, two parallel track shafts 511 are arranged on the cutting head frame 51, the slide 52 is slidably arranged on the two track shafts 511, and the cutting knife 53 is fixed on the slide 52. The cutting knife 53 includes a cylinder 531 and a piston rod 532 connected to the cylinder 531 through a piston, and a blade 533 is arranged at the front end of the piston rod 532. A compression spring 535 is arranged on the periphery of the piston rod 532. Preferably, the blade 533 is a square blade 533. In other embodiments, the blade 533 can also be a blade 533 of other shapes for cutting steel bars. The extension direction of the two track shafts 511 is parallel to the direction in which the steel bars are advanced, and the positions of the two track shafts 511 are arranged so 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 downward, and the cut steel bars can smoothly fall into the receiving trough 513 at a predetermined position.

[0123] The cylinder 531 drives the piston rod 532 to extend and retract through hydraulic oil, so that the blade 533 cuts the steel bar. An oil passage is provided between the piston rod 532 and the cylinder 531, so that the hydraulic oil of the hydraulic system can drive the piston rod 532 to reciprocate and extend, thereby driving the blade 533 to perform the steel bar cutting action. In this embodiment, the mounting plate is an L-shaped plate, which includes a horizontally arranged bottom plate and a vertical plate vertically arranged at the end of the bottom plate, and the vertical plate is provided with an arc groove adapted to the outer peripheral shape of the cylinder body, and the cylinder body is mounted on the mounting plate and the arc groove is against the outer periphery of the cylinder body; the front end of the U-shaped bracket is provided with an inclined material guide plate 512, and the inclined material guide plate 512 is used to guide the cut steel bars into the steel bar receiving trough.

[0124] The front end of the piston rod 532 is inclined downward, that is, when the steel bar is cut, the blade 533 arranged at the front end of the piston rod 532 is pushed downward, so the steel bar is also cut downward. Therefore, under the action of gravity, the cut steel bar will fall forward into the predetermined material receiving trough 513, so it is convenient to collect and sort the steel bars, which can improve the steel bar processing efficiency.

[0125] The cutting knife 53 also includes a knife seat, which is fixedly arranged at the front end of the cylinder body 531. A steel bar guide sleeve 534 is arranged on the knife seat. The steel bar passes through the steel bar guide sleeve 534 to the front of the blade 533. The blade 533 can move relative to the steel bar guide sleeve 534 to cut the steel bar. The blade 533 is located on one side of the knife seat, and the steel bar guide sleeve 534 is located on the opposite side of the knife seat. After the steel bar passes through the steel bar guide sleeve 534, the piston rod 532 pushes the square blade 533 to complete the steel bar cutting process. When cutting the steel bar, the steel bar is pushed by the steel bar pushing device after passing through the steel bar guide sleeve 534. The steel bar pushing device and the cutting mechanism 5 work in coordination. After the steel bar pushing device pushes a preset length of steel bar, the cutting mechanism 5 cuts the steel bar.

[0126] And in this embodiment, the cutting mechanism 5 adopts a lightweight overall design, improves the support method and inclined layout of the cutting knife 53, can reduce the overall impact force of the cutting head advancement process, and reasonably balance the torque of this process. The slide 52 includes an L-shaped mounting plate, and the mounting plate includes a bottom plate 681 and a vertical plate arranged at the end of the bottom plate 681. The vertical plate is provided with an arc groove that matches the outer peripheral shape of the cylinder body 531, and the cylinder body 531 is installed on the mounting plate and the arc groove is against the outer periphery of the cylinder body 531. Among them, 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 piece of steel plate. The cylinder body 531 is fixed to the vertical plate by fasteners such as bolts. The front and rear ends of the mounting plate are respectively provided with sliding sleeves 521, and the slide seat 52 is slidably connected with the two track shafts 511 through the two sliding sleeves 521, and the sliding sleeve 521 located at the front end of the mounting plate is lower than the other sliding sleeve 521, so that the slide seat 52 is tilted. The shape of the sliding sleeve 521 is adapted to the shape of the track rail. In this embodiment, the slide seat 52 only includes an L-shaped mounting plate and two sliding sleeves 521, which greatly reduces the overall mass of the cutting mechanism 5. In addition, the extension direction of the two track shafts 511 is the same as the propulsion direction of the steel bar, and is perpendicular to the telescopic direction of the piston rod 532. The torque generated by the cutting acts evenly on the two track shafts 511, so the torque of the cutting process can be reasonably balanced.

[0127] like Figure 8 As shown, the aligning mechanism 17 is installed on the steel bar bending machine to align the steel bars that fall after being cut. Specifically, the aligning mechanism 17 is installed on the steel bar receiving trough 11 at the front lower part of the cutting device of the steel bar bending machine. The cut steel bars fall into the steel bar receiving trough 11. The aligning plate 172 of the aligning mechanism 17 can be driven to move along the length direction of the steel bar receiving trough 11, so as to automatically align the steel bars in the steel bar receiving trough 11, so as to facilitate the steel bar bending machine to bend the steel bars.

[0128] In this embodiment, the aligning mechanism 17 includes: a device frame 171, an aligning plate 172, a transmission reducer 176 and a position detection mechanism. Among them, the device frame 171 is installed on the steel bar bending machine; the aligning mechanism 17 is fixedly arranged on the steel bar bending machine through the device frame 171. The device frame 171 can be made of a metal or alloy with a certain strength, such as steel, aluminum, and aluminum alloy.

[0129] The top alignment plate 172 is disposed in front of the device frame 171 ; the top alignment plate 172 is used to abut against the ends of the steel bars and push the steel bars to move so that the ends of the steel bars are aligned.

[0130] The transmission reducer 176 is fixed on the device frame 171 and connected to the top plate 172 through the main transmission shaft 177, and is used to drive the top plate 172 to move horizontally and abut against the end of the steel bar, so that the steel bar is topped. The transmission reducer 176 is the power source of the top plate 172. The power is provided by the transmission reducer 176 and transmitted to the top plate 172 through the main transmission shaft 177, so that the top plate 172 moves along the length direction to align the steel bar. Among them, similar to the device frame 171, the top plate 172 can also be made of a metal or alloy with a certain strength such as steel, aluminum, and aluminum alloy. And the top plate 172 is perpendicular to its moving direction (that is, the normal of the top plate 172 is parallel to its moving direction), so that the large surface of the top plate 172 contacts the end of the steel bar. Specifically, the top plate 172 is vertically arranged, and the top plate 172 is driven by the main transmission shaft 177 to move horizontally.

[0131] The position detection mechanism includes a secondary transmission shaft 178, a position sensor 173 and a sensing sleeve 174; the secondary transmission shaft 178 is fixedly connected to the top alignment plate 172 and moves with the top alignment plate 172, and the sensing sleeve 174 is fixedly set on the secondary transmission shaft 178; the position sensor 173 is set on the side of the secondary transmission shaft 178, and is used to identify the sensing sleeve 174 to detect whether the top alignment plate 172 has moved into place.

[0132] The position sensor 173 is used to detect whether the top plate 172 has moved into position. When the position sensor 173 detects the sensing sleeve 174, it means that the top plate 172 has been pushed forward into position. Otherwise, it means that the top plate 172 has not moved into position. Figure 1 As shown, the auxiliary transmission shaft 178 and the main transmission shaft 177 are arranged on the same side of the top plate 172, and the two are parallel to each other.

[0133] In this embodiment, the sensing sleeve 174 is a position-adjustable sensing sleeve 174, that is, the position of the sensing sleeve 174 on the secondary transmission shaft 178 in the axial direction can be adjusted. The sensing sleeve 174 is a magnetic sleeve, and the position sensor 173 is a Hall sensor; the sensing sleeve 174 is sleeved on the secondary transmission shaft 178 in an axially adjustable manner, and is fixed to the secondary sensing shaft by a fixing bolt; the fixing bolt is arranged along the radial direction of the secondary transmission shaft 178, and the end of the fixing bolt abuts against the side of the secondary transmission shaft 178 to fix the sensing sleeve 174. In other embodiments, the position sensor 173 can also be a photoelectric sensor or a micro switch, etc., and the sensing sleeve 174 can be a corresponding light shield or a contact protrusion adapted to the micro switch.

[0134] In this embodiment, the aligning mechanism 17 further includes a reset spring 175, one end of which is fixed and the other end is connected to the aligning plate 172, for pulling the aligning plate 172 back to the initial position. The end of the reset spring 175 away from the aligning plate 172 can be connected to a fixing plate, and the fixing plate is fixedly mounted on the device frame 171, so that the end of the reset spring 175 away from the aligning plate 172 is fixed. When the aligning plate 172 is driven forward by the main transmission shaft 177, the reset spring 175 is stretched and elastically deformed, and when the driving force of the main transmission shaft 177 disappears, the elastic force of the reset spring 175 pulls the aligning plate 172 back to the initial position.

[0135] In this embodiment, in order to enable the top alignment plate 172 to obtain sufficient tension, the device is provided with two or more mutually parallel reset tension springs 175. Of course, in some embodiments, only one reset tension spring 175 with a larger elastic coefficient may be provided.

[0136] When the transmission reducer 176 of the aligning mechanism 17 receives the operation command, the transmission reducer 176 drives the main transmission shaft 177 to move, thereby pushing the aligning plate 172 to move forward. The secondary transmission shaft 178 follows, and the secondary transmission shaft 178 plays a role in controlling the balance of the aligning plate 172. And through the cooperation of the position sensor 173 and the induction sleeve 174, it can be detected whether the aligning plate 172 has moved into place. When the position sensor 173 senses the induction sleeve 174, it indicates that the aligning plate 172 has reached the predetermined position and the aligning of the steel bars is completed. At this time, the transmission reducer 176 is powered off, and the reset tension spring 175 pulls the aligning plate 172 back to the initial position, waiting for the next command.

[0137] In this embodiment, the transmission reducer 176 and the main transmission shaft 177 are driven by gear transmission teeth. The main transmission shaft 177 is provided with transmission teeth in the axial direction. The output of the transmission reducer 176 is provided with gears, and the gears are meshed with the transmission teeth. The transmission reducer 176 drives the gears to rotate, so that the main transmission shaft 177 moves along the axis. In other embodiments, the main transmission shaft 177 and the transmission reducer 176 can be connected by a conventional transmission mechanism in the art, such as a pulley or a sprocket. This part is a conventional technical means in the art and will not be described in detail here.

[0138] The transmission reducer 176 includes a driving mechanism and a reduction mechanism, the reduction mechanism is connected to the driving mechanism in a transmission manner, the driving mechanism includes any one of a motor, a hydraulic motor, and a pneumatic motor, and the reduction mechanism includes any one of a worm gear reduction mechanism, a gear set reduction mechanism, and a planetary gear reduction mechanism. Preferably, in this embodiment, the driving mechanism of the transmission reducer 176 is a motor, and the reduction mechanism is a gear set reduction mechanism.

[0139] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concept of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A five-head steel bar bending machine, used to bend steel bars into workpieces of predetermined shapes, characterized in that: include: A main frame is provided with a main track along the length direction; A traction mechanism, used for pulling the steel bar to move axially; A straightening mechanism, used for straightening the steel bars; A cutting mechanism, arranged at the rear end of the straightening mechanism, for cutting the straightened steel bars according to a preset length; A aligning mechanism is arranged below the cutting mechanism and is used to align the steel bars that fall into the receiving trough after cutting; Five steel bar bending machine heads are arranged on the main frame and can move along the main track by themselves. The steel bar bending machine heads include: a running mechanism, an inclined plate and a bending mechanism; The bending mechanism comprises: a bending cylinder, a bending disk and a supporting mandrel, wherein the bending cylinder is used to drive the bending disk to rotate around the supporting mandrel to bend the steel bar; The positioning mechanism comprises: a positioning motor and a clamping device, and the positioning mechanism is used to cooperate with the main track and drive the steel bar bending machine head to move along the main track; A wedge-shaped head plate is arranged on the top of the running mechanism, the inclined plate is inclinedly arranged on the wedge-shaped head plate, the bending mechanism is arranged on the inclined plate, and the inclination angles of at least two mounting surfaces on the top of the wedge-shaped head plates are different, so that the inclination angles of at least two inclined plates and the bending mechanism are different.

2. The five-head steel bar bending machine according to claim 1, characterized in that: The bending mechanism also includes an arched blanking support mechanism, which includes: a blanking support inclined plate, a guide plate and an L-shaped support arm; A material rack for placing steel bars is arranged inside the L-shaped support arm, the L-shaped support arm can be slidably suspended on the main frame, and two mutually perpendicular support bearings are arranged inside the L-shaped support arm, and the support bearings are slidably connected to the main frame; The material dropping support inclined plate is obliquely arranged at the bottom of the L-shaped support arm, and the bottom of the material dropping support inclined plate is opposite to the support core shaft of the bending mechanism, so as to make the steel bars fall onto the support core shaft, and the guide plate is arranged parallel to the material dropping support inclined plate.

3. The five-head steel bar bending machine according to claim 1 or 2, characterized in that: The running mechanism also includes a secondary support body; One end of the running mechanism is supported on the main track through a cushion seat and is connected by a gear rack transmission. The other end of the running mechanism is supported on the secondary track through a secondary support body. The secondary support body includes a roller, a transversely arranged cross arm, and a vertically arranged support arm connected to the end of the cross arm. The roller is arranged at the bottom of the support arm.

4. The five-head steel bar bending machine according to claim 1, characterized in that: The support mandrel is connected to a telescopic cylinder through a coupling sleeve. The telescopic cylinder is used to drive the support mandrel to extend to receive the steel bar, and to retract after each steel bar bending action is completed so that the steel bar leaves the support mandrel.

5. The five-head steel bar bending machine according to claim 4, characterized in that: The supporting core shaft is a flat shaft, and a plane for receiving steel bars is provided on the upper circumferential part, a V-shaped groove is provided in the middle of the plane, the length direction of the V-shaped groove is parallel to the axial direction of the steel bars, and the two sides of the V-shaped groove are against the outer circumference of the steel bars, and a sunken mounting hole is provided in the middle of the V-shaped groove, and a magnet is installed in the mounting hole to attract the steel bars to the V-shaped groove.

6. The five-head steel bar bending machine according to claim 5, characterized in that: The steel bar bending machine head also includes a pre-clamping assembly, which includes: a spring, a clamping slider, a transverse rack plate, a longitudinal plate and a one-way rack; The clamping slider is slidably disposed in the concave groove on the center shaft plate, and can move closer to or farther from the supporting core shaft; The spring abuts against the clamping slider to provide the clamping slider with a clamping force directed toward the supporting mandrel; The clamping slider is provided with a mounting groove to accommodate the transverse rack plate and the longitudinal plate, the transverse rack plate and the longitudinal plate are stacked and connected by an inclined surface, the inclined surface includes an inclined surface 2 arranged on the inner surface of the transverse rack plate and an inclined surface 1 arranged on the outer surface of the longitudinal plate, the inclined surface 1 and the inclined surface 2 are abutted against each other, and the longitudinal plate is provided with a meshing portion adapted to the one-way rack; each tooth of the one-way rack is inclined toward the direction where the supporting core shaft is located; When the bending disk is in the initial position, the bending disk bearing abuts against the longitudinal plate, so that the longitudinal plate and the clamping slider are away from the supporting mandrel; When the bending disk rotates to apply pressure to the steel bar, the bending disk bearing separates from the longitudinal plate, the clamping slider moves toward the supporting core shaft to clamp the steel bar, and the transverse rack plate moves toward the one-way rack to make the meshing portion mesh with the one-way rack to lock the clamping slider.

7. The five-head steel bar bending machine according to claim 6, characterized in that: 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 transverse rack plate in the length direction is connected to the clamping slider platform, and the other end of the transverse rack plate in the length direction is provided with the meshing portion; The spring abuts against the top end of the clamping slider, and the bottom end of the clamping slider is provided with anti-slip teeth for contacting the steel bar.

8. The five-head steel bar bending machine according to claim 1, characterized in that: The cutting mechanism comprises: a cutting head frame, a slide seat and a cutting knife; The cutting knife is arranged on the slide seat, and comprises a cylinder body and a piston rod connected to 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 and retract through hydraulic oil, so that the blade cuts the steel bar; The cutting head frame includes a U-shaped bracket, on which two parallel track shafts are arranged, and the extension direction of the two track shafts is parallel to the direction in which the steel bars are pushed; the slide seat includes 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, and the slide seat is slidably connected to 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 slide seat and the front end of the piston rod are arranged to be tilted downward.

9. The five-head steel bar bending machine according to claim 8, characterized in that: The mounting plate is an L-shaped plate, comprising a horizontally arranged bottom plate and a vertical plate arranged vertically at the end of the bottom plate, the vertical plate is provided with an arc groove adapted to the outer peripheral shape of the cylinder body, the cylinder body is mounted on the mounting plate and the arc groove abuts against the outer periphery of the cylinder body; the front end of the U-shaped bracket is provided with an inclined material guide plate, the inclined material guide plate is used to guide the cut steel bars into the steel bar receiving trough.

10. The five-head steel bar bending machine according to claim 1, characterized in that: The aligning mechanism comprises: a device frame, which is installed on the main frame of the steel bar bending machine; A top plate, arranged in front of the device frame; The transmission reducer is fixed on the device frame and connected to the top-aligning plate through the main transmission shaft, and is used to drive the top-aligning plate to move horizontally to abut against the end of the steel bar, so that the steel bar is aligned.

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