Reinforcing bar bending apparatus and reinforcing cage production line

Abstract

The present application relates to the technical field of steel bar processing, and particularly relates to a steel bar bending device and a steel bar framework production line. The steel bar bending device comprises a rack, a bending die and a bending mechanism. The bending die is matched with the top of the steel bars to be bent of the steel bar mesh. The bending mechanism comprises a flying bar die having a working position above the steel bars to be bent and an initial position; a flying bar driving mechanism connected with the flying bar die to drive the flying bar die to rotate; a bending part swingably arranged on the rack and matched with the bottom of the steel bars to be bent; and a bending driving mechanism connected with the bending part and driving the bending part to swing to simultaneously bend the steel bars to be bent. Under the blockage of the bending die and the flying bar die, the bending part bends the end of the steel bars to be bent into a Z shape, and the steel bar mesh is bent in one time. The bending angle is good in consistency, and the bending efficiency is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel bar processing, in particular to a steel bar bending equipment and a steel bar framework production line. BACKGROUND

[0002] At present, after the steel mesh is welded and formed, it needs to be bent. The bending form of the steel mesh can be divided into horizontal bar bending, vertical bar bending and flying bar bending. The flying bar bending can also be called Z-shaped bending.

[0003] The flying bar bending belongs to the flying bar composite floor system, which is widely used in Europe. Most of the composite floor meshes in China adopt horizontal bar bending. Therefore, the main manufacturers of the flying bar bending equipment are in foreign countries. The flying bar bending equipment in foreign countries is single bending, which has the defects of poor bending consistency and slow bending efficiency. SUMMARY

[0004] Therefore, the technical problem to be solved by the present application is to overcome the defects of the foreign flying bar steel bending equipment that causes single steel bar bending to have poor bending consistency and slow bending efficiency, so as to provide a steel bar bending equipment and a steel bar framework production line.

[0005] In order to solve the above problems, the present application provides a steel bar bending equipment, which comprises a rack, a bending die and a bending mechanism. The bending die is suitable for cooperating with the top of the steel bar to be bent of the steel mesh. The bending mechanism comprises a flying die, a flying bar driving mechanism and a bending part. The flying die is rotatably arranged on the rack and has a working position above the plurality of steel bars to be bent and an initial position. The flying bar driving mechanism is arranged on the rack and connected with the flying die to drive the flying die to switch between the working position and the initial position. The bending part is swingably arranged on the rack and located between the flying die and the bending die and is suitable for cooperating with the bottom of the plurality of steel bars to be bent. The bending driving mechanism is connected with the bending part and drives the bending part to swing to simultaneously bend the plurality of steel bars to be bent.

[0006] Optionally, the steel bar bending equipment further comprises a locking mechanism. The locking mechanism is arranged on the rack. The locking mechanism has a locking state of locking the flying die at the working position and an unlocking state of allowing the flying die to rotate.

[0007] Optionally, the locking mechanism comprises a locking piece and a locking driving piece. The locking piece is movably arranged. The locking driving piece is connected with the locking piece to drive the locking piece to move.

[0008] Optionally, the locking piece is a swingable locking arm or a movable locking pin.

[0009] Optionally, the bending driving mechanism comprises a connecting rod mechanism and a bending driving part. The connecting rod mechanism is connected with the rack, the bending part and the bending driving part. The bending driving part drives the bending part to swing through the connecting rod mechanism.

[0010] Optionally, the connecting rod mechanism comprises a first connecting rod and a second connecting rod, a first end of the first connecting rod is hingedly connected to the rack, a second end of the first connecting rod is hingedly connected to a part of the bending part close to the top of the bending part, a first end of the second connecting rod is hingedly connected to the bottom of the bending part, and a second end of the second connecting rod is fixedly connected to the bending driving part.

[0011] Optionally, the bending part comprises a bending shaft and a plurality of bending arms, the top end of the bending arm is connected to the bending shaft, the bottom end of the bending arm is hingedly connected to the first end of the second connecting rod, and the part between the top end and the bottom end of the bending arm is hingedly connected to the second end of the first connecting rod.

[0012] Optionally, the flying bar die comprises a flying bar shaft and a plurality of flying bar arms, the first end of the flying bar arm is fixedly connected to the flying bar shaft, and the second end of the flying bar arm is fixedly connected to the flying bar driving mechanism.

[0013] Optionally, the number of bending mechanisms is two, and the two bending mechanisms are symmetrically arranged on both sides of the bending die.

[0014] Optionally, the flying bar driving mechanism comprises a rotating shaft, a transmission mechanism and a flying bar driving piece, the flying bar die is fixed on the rotating shaft, the rotating shaft is rotatably arranged on the rack, and the flying bar driving piece is arranged on the rack and drives the rotating shaft to rotate through the transmission mechanism.

[0015] Optionally, the bending die comprises a die seat and a plurality of die cores, the die seat is arranged on the rack, and the plurality of die cores are arranged on the die seat in sequence along the extension direction of the die seat, and each die core is adapted to cooperate with the top of the steel bar to be bent.

[0016] The application also provides a steel bar skeleton production line comprising the above-mentioned steel bar bending equipment.

[0017] The application has the following advantages:

[0018] When the end of the steel bar to be bent of the steel bar mesh is bent into a Z shape, the steel bar mesh is placed at the steel bar bending equipment, the bending die is matched with the top of the plurality of steel bars to be bent of the steel bar mesh, the flying bar driving mechanism drives the flying bar die to be above the plurality of steel bars to be bent, the bending driving mechanism drives the bending part to swing, the plurality of steel bars to be bent can be lifted up, under the blocking of the bending die and the flying bar die, the end of the steel bar to be bent is bent into a Z shape by the bending part, the steel bar mesh can be bent in flight at one time, the bending angle consistency is good, and the bending efficiency is high; when the flying bar die is in the initial position, the end of the steel bar to be bent can be bent into a 90° bend, a 135° bend or a multi-angle continuous bend under the action of the bending die and the bending part, the steel bar mesh as a whole is bent into a 90° bend, a 135° bend or a multi-angle continuous bend, the bending angle is flexibly adjustable, and the bending angle range is wide. BRIEF DESCRIPTION OF DRAWINGS

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 A perspective view of a steel bar bending device according to an embodiment of the present invention is shown;

[0021] Figure 2 It shows Figure 1 A three-dimensional schematic diagram of the bending die of the steel bar bending equipment;

[0022] Figure 3 It shows Figure 1 A three-dimensional schematic diagram of the rebar bending equipment, including the rebar bending die, the rebar bending drive mechanism, and the locking mechanism.

[0023] Figure 4 It shows Figure 3 A partial three-dimensional schematic diagram of the fly liner mold, fly liner drive mechanism, and locking mechanism;

[0024] Figure 5 It shows Figure 1 A three-dimensional schematic diagram of the bending section and bending drive mechanism of a steel bar bending equipment;

[0025] Figure 6 It shows Figure 5 A partial three-dimensional schematic diagram of the bending section and bending drive mechanism;

[0026] Figure 7 It shows Figure 5 A side view of a steel bar bending device;

[0027] Figure 8 It shows Figure 1 A three-dimensional schematic diagram of how a steel bar bending device bends the second end of the longitudinal bars of a steel mesh into a fly bar.

[0028] Figure 9 It shows Figure 8 A side view diagram of a steel bar bending device bending the second end of the longitudinal bars of a steel mesh into a fly bar.

[0029] Figure 10 A perspective view of a first embodiment of the steel mesh of the present invention is shown;

[0030] Figure 11 It shows Figure 10 A front view schematic diagram of the steel mesh;

[0031] Figure 12 It showsFigure 1 A three-dimensional schematic diagram of a steel bar bending device bending the second end of the longitudinal bars of a steel mesh by 135 degrees;

[0032] Figure 13 It shows Figure 12 A three-dimensional schematic diagram of a steel bar bending device bending the second end of the longitudinal bars of a steel mesh by 135 degrees;

[0033] Figure 14 A three-dimensional schematic diagram of a second embodiment of the steel mesh of the present invention is shown;

[0034] Figure 15 A front view schematic diagram of the steel mesh sheet 14 is shown.

[0035] Explanation of reference numerals in the attached figures:

[0036] 10. Frame; 20. Bending die; 21. Die base; 22. Die core; 30. Beading die; 31. Beading shaft; 32. Beading arm; 40. Beading drive mechanism; 41. Rotating shaft; 42. Transmission mechanism; 50. Bending section; 51. Bending shaft; 52. Bending arm; 53. Connecting shaft; 54. Connecting arm; 60. Bending drive mechanism; 61. Linkage mechanism; 611. First link; 612. Second link; 62. Bending drive section; 621. Motor; 622. Reducer; 63. Rotating shaft; 70. Locking mechanism; 71. Locking element; 90. Steel mesh; 91. Longitudinal reinforcement; 92. Transverse reinforcement. Detailed Implementation

[0037] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of the present application, it should be noted that unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict between them.

[0041] As shown in Figure 1 , Figure 2 and Figure 8 , the reinforcing bar bending device of the embodiment comprises a rack 10, a bending die 20 and a bending mechanism, the bending die 20 is adapted to cooperate with the top of the reinforcing bars to be bent of the reinforcing mesh 90, the bending mechanism comprises a flying bar die 30, a flying bar driving mechanism 40, a bending part 50 and a bending driving mechanism 60, the flying bar die 30 is rotatably arranged on the rack 10, the flying bar die 30 has a working position above the reinforcing bars to be bent and an initial position; the flying bar driving mechanism 40 is arranged on the rack 10 and connected with the flying bar die 30 to drive the flying bar die 30 to switch between the working position and the initial position; the bending part 50 is swingably arranged on the rack 10, the bending part 50 is located between the flying bar die 30 and the bending die 20 and is adapted to cooperate with the bottom of the reinforcing bars to be bent; the bending driving mechanism 60 is connected with the bending part 50, and the bending driving mechanism 60 drives the bending part 50 to swing to simultaneously bend the reinforcing bars to be bent.

[0042] When the end of the reinforcing bar to be bent of the reinforcing mesh is bent into a Z shape by using the reinforcing bar bending device of the embodiment, the reinforcing mesh 90 is placed at the reinforcing bar bending device, the bending die 20 cooperates with the top of the reinforcing bars to be bent of the reinforcing mesh 90, the flying bar driving mechanism 40 drives the flying bar die 30 to be above the reinforcing bars to be bent, the bending driving mechanism 60 drives the bending part 50 to swing, the reinforcing bars to be bent can be lifted up, under the block of the bending die 20 and the flying bar die 30, the end of the reinforcing bars to be bent is bent into a Z shape by the bending part 50, the reinforcing mesh can be bent into a flying bar at one time, the bending angle consistency is good, and the bending efficiency is high; when the flying bar die 30 is in the initial position, the end of the reinforcing bars to be bent can be bent into 90°, 135° or multi-angle continuous bending under the action of the bending die 20 and the bending part 50, the whole reinforcing mesh is bent into 90°, 135° or multi-angle continuous bending, the bending angle is flexible and adjustable, and the bending angle range is wide.

[0043] In the embodiment, as Figure 3 andFigure 4 As shown, the reinforcing bar bending device further comprises a locking mechanism 70 arranged on the frame 10, the locking mechanism 70 having a locking state for locking the reinforcing bar mold 30 at the working position and an unlocking state for allowing the reinforcing bar mold 30 to rotate. When bending the reinforcing mesh, the bending driving mechanism 60 applies a large force to the bending part 50, and then the bending part 50 applies an action to the reinforcing bar mold 30 in a direction away from the bending part 50. The locking mechanism 70 can fix and lock the reinforcing bar mold 30 to prevent the reinforcing bar mold 30 from moving in position during bending, thereby improving the bending accuracy.

[0044] In the embodiment, the locking mechanism 70 comprises a locking piece 71 and a locking driving piece. The locking piece 71 is movably arranged, and the locking driving piece is connected with the locking piece 71 to drive the locking piece 71 to move. The locking driving piece drives the locking piece 71 to move, and the locking piece 71 can apply an action to the reinforcing bar mold 30 in a direction towards the bending part 50. The action can offset the action of the bending part 50 to the reinforcing bar mold 30, so that the reinforcing bar mold 30 is fixed.

[0045] In the embodiment, the reinforcing bar mold 30 comprises a reinforcing bar shaft 31 and a plurality of reinforcing bar arms 32. The first ends of the reinforcing bar arms 32 are fixedly connected with the reinforcing bar shaft 31, and the second ends of the reinforcing bar arms 32 are fixedly connected with the reinforcing driving mechanism 40. When bending the reinforcing mesh, the reinforcing driving mechanism 40 drives the reinforcing bar arms 32 to swing, and then drives the reinforcing bar shaft 31 to move to above the reinforcing bars to be bent. The bending driving mechanism 60 drives the bending part 50 to lift up the reinforcing bars to be bent. When the bending part 50 lifts up the plurality of reinforcing bars to be bent to abut against the reinforcing bar shaft 31, the bending driving mechanism 60 continues to drive the bending part 50 to move until the ends of the reinforcing bars to be bent are bent into Z shape. The reinforcing bar shaft 31 is convenient for cooperating with the plurality of reinforcing bars to be bent, and the structure of the reinforcing bar mold 30 is simple. The reinforcing mesh can be bent in one time, and the bending angle consistency is good.

[0046] Preferably, the reinforcing bar arm 32 is generally L-shaped, which can prevent the reinforcing bar arm 32 from interfering with the reinforcing bars to be bent. The reinforcing bar arm 32 comprises an integral short arm body and a long arm body. The end of the short arm body away from the long arm body is fixedly connected with the reinforcing bar shaft 31, and the end of the long arm body away from the short arm body is fixedly connected with the reinforcing driving mechanism 40. Specifically, the intersection of the short arm body and the long arm body is smoothly transitioned.

[0047] In the embodiment, the reinforcing driving mechanism 40 comprises a rotating shaft 41, a transmission mechanism 42 and a reinforcing driving piece. The reinforcing bar mold 30 is fixed on the rotating shaft 41. The rotating shaft 41 is rotatably arranged on the frame 10 and connected with the reinforcing bar mold 30. The reinforcing driving piece is arranged on the frame 10 and drives the rotating shaft 41 to rotate through the transmission mechanism 42, thereby driving the reinforcing bar mold 30 to rotate. It can be understood that, as an alternative embodiment, the transmission mechanism 42 can also not be arranged, and the reinforcing driving piece directly drives the rotating shaft 41 to rotate.

[0048] Preferably, the transmission mechanism 42 is a rack and pinion mechanism or a sprocket and chain mechanism, etc., and the flying bar driving member is a linear driving component such as a pneumatic cylinder or a hydraulic cylinder.

[0049] In the embodiment, the locking member 71 is an oscillatable locking arm, and the locking driving member is a linear driving component such as a pneumatic cylinder or a hydraulic cylinder or a rotary driving component such as a motor. It can be understood that, as an alternative embodiment, the locking member 71 is a movable locking pin, the locking driving member is a linear driving component such as a pneumatic cylinder or a hydraulic cylinder, and the rotary shaft 41 is provided with a locking hole matched with the locking pin, the locking pin can be inserted into or pulled out of the locking hole, of course, the locking member 71 can also not be provided, and the piston rod of the pneumatic cylinder or the hydraulic cylinder can be inserted into or pulled out of the locking hole.

[0050] Specifically, the upper end of the locking arm is adapted to abut against the rotary shaft 41, the locking driving member is hingedly connected with the lower end of the locking arm, and the middle part of the locking arm is hingedly connected on the rack 10. Preferably, the locking arm comprises two locking arm bodies which are at an obtuse angle, facilitating the arrangement of the locking driving member. It can be understood that, as an alternative embodiment, the two locking arm bodies are at a right angle or an acute angle.

[0051] In the embodiment, as shown in Figures 5 to 8 , the bending driving mechanism 60 comprises a linkage mechanism 61 and a bending driving part 62, the linkage mechanism 61 is connected with the rack 10, the bending part 50 and the bending driving part 62, the bending driving part 62 drives the bending part 50 to oscillate through the linkage mechanism 61, thereby realizing the lifting of the reinforcing mesh, and the driving mode is simple and convenient.

[0052] In the embodiment, the linkage mechanism 61 comprises a first linkage 611 and a second linkage 612, the first end of the first linkage 611 is hingedly connected with the rack 10, the second end of the first linkage 611 is hingedly connected with the part of the bending part 50 close to the top thereof, the first end of the second linkage 612 is hingedly connected with the bottom of the bending part 50, and the second end of the second linkage 612 is fixedly connected with the bending driving part 62. The bending driving part 62 drives the second linkage 612 to oscillate, thereby driving the bending part 50 and the first linkage 611 to oscillate, the reinforcing mesh can be lifted, and the linkage mechanism 61 has a simple structure and low cost.

[0053] In the embodiment, the bending driving mechanism 60 further comprises a rotating shaft 63, the rotating shaft 63 is rotatably arranged on the rack 10, the second end of the second linkage 612 is fixedly connected with the rotating shaft 63, and the bending driving part 62 is connected with the rotating shaft 63. The bending driving part 62 is connected with the bending part 50 through the rotating shaft 63, the connection mode is simple and convenient, and the overall structure is simplified.

[0054] In the embodiment, the bending driving part 62 comprises a motor 621 and a speed reducer 622, the output shaft of the motor 621 is fixedly connected with the input shaft of the speed reducer 622, and the output shaft of the speed reducer 622 is fixedly connected with the rotating shaft 63. The speed reducer 622 plays a role of reducing the rotating speed, thereby improving the bending precision. It can be understood that, as an alternative implementation, the bending driving part 62 is a pneumatic cylinder or a hydraulic cylinder, at this time, the second end of the second connecting rod 612 is hingedly connected with the rack 10, the piston rod of the pneumatic cylinder or the hydraulic cylinder is hingedly connected with the bending part 50, and the cylinder barrel of the pneumatic cylinder or the hydraulic cylinder is hingedly connected with the rack 10, the linear motion of the piston rod drives the bending part 50 to swing.

[0055] In the embodiment, the bending part 50 comprises the bending shaft 51 and a plurality of bending arms 52, the top end of the bending arm 52 is connected with the bending shaft 51, the bottom end of the bending arm 52 is hingedly connected with the first end of the second connecting rod 612, and the part between the top end and the bottom end of the bending arm 52 is hingedly connected with the second end of the first connecting rod 611. The bending driving mechanism 60 drives the bending arm 52 to swing, thereby driving the bending shaft 51 to move, the bending shaft 51 lifts a plurality of steel bars to be bent upward, and the bending shaft 51 is convenient for cooperating with the plurality of steel bars to be bent.

[0056] In the embodiment, the bending part 50 further comprises a plurality of connecting shafts 53, each connecting shaft 53 is connected with each bending arm 52, the plurality of bending arms 52 are connected together through the bending shaft 51 and the connecting shafts 53, and the structure of the bending part 50 is more stable and reliable.

[0057] In the embodiment, the bending part 50 further comprises the connecting arm 54, the connecting arm 54 is connected with the bending shaft 51 and the plurality of connecting shafts 53, the connecting arm 54 can improve the structural strength of the bending part 50 and improve the stability of the bending part. Of course, the connecting arm 54 can also not be arranged.

[0058] Preferably, the bending arm 52 and the connecting arm 54 are both curved arms, the curved arm comprises a first arm body, a second arm body and a third arm body which are integrally formed, the first arm body and the second arm body form an obtuse angle, the second arm body and the third arm body form an obtuse angle, one end of the first arm body away from the second arm body is fixedly connected with the bending shaft 51, the middle part of the second arm body is fixedly connected with one connecting shaft 53, the third arm body of the bending arm 52 is longer than the third arm body of the connecting arm 54, one end of the third arm body of the bending arm 52 away from the first arm body thereof is hingedly connected with the second connecting rod 612, and the part between the two ends of the third arm body of the bending arm 52 and one end of the third arm body of the connecting arm 54 away from the first arm body thereof are both fixedly connected with another connecting shaft 53.

[0059] In the embodiment, as shown in Figure 8 , Figure 9 , Figure 12 and Figure 13As shown, the number of bending mechanisms is two, and the two bending mechanisms are symmetrically arranged on both sides of the bending die 20. After one side of the steel mesh is bent and formed, the other side of the steel mesh is grabbed by other supporting mesh grabbing devices to the other bending mechanism, and the other bending mechanism bends the other side of the steel mesh to realize the bending of both sides of the steel mesh.

[0060] In this embodiment, as shown in the figure, Figure 2 The bending die 20 includes a die seat 21 and a plurality of die cores 22. The die seat 21 is arranged on the rack 10, and the plurality of die cores 22 are arranged in sequence on the die seat 21 along the extension direction of the die seat 21. Each die core 22 is adapted to cooperate with the top of the steel bar to be bent. The die core 22 has a clamping groove, the opening of the clamping groove faces one end of the die seat 21, and the clamping groove extends along the extension direction of the steel bar to be bent. The plurality of die cores 22 are arranged at equal intervals, and the plurality of die cores 22 can be moved integrally by moving the die seat 21. Each die core 22 can be lifted individually, and the up of the die core 22 can be adjusted according to the mesh specification, so that it can be adapted to different specifications of the mesh. Of course, the plurality of die cores 22 do not need to be lifted individually, and the position of the die core 22 can be adjusted manually according to the mesh specification to adapt to the position of the longitudinal reinforcement.

[0061] It should be noted that, as shown in the figure, Figure 2 , Figure 10 , Figure 11 , Figure 14 and Figure 15 The steel mesh 90 includes a plurality of longitudinal reinforcements 91 and a plurality of transverse reinforcements 92. Each longitudinal reinforcement 91 is connected to a plurality of transverse reinforcements 92, and each die core 22 of the bending die 20 corresponds to a longitudinal reinforcement 91 of the steel mesh 90.

[0062] Preferably, the lifting of the die core 22 can be driven by a linear driving component such as a pneumatic cylinder or an oil cylinder, and the movement of the die seat 21 can be driven by a linear driving component such as a pneumatic cylinder or an oil cylinder.

[0063] The working process of the steel bending equipment will be described below:

[0064] The mesh grabbing device grabs the steel mesh 90 to the steel bending equipment, places the steel mesh 90 above the steel bending equipment, drives the corresponding die core 22 to rise, and then the bending die 20 moves as a whole along the transverse direction of the steel mesh 90 to above the longitudinal reinforcement of the steel mesh 90. The flying reinforcement die 30 of the side to be bent of the steel mesh 90 rotates a certain angle around the first axis by the flying reinforcement driving mechanism 40 and runs to above the steel mesh 90. The locking arm fixes and locks the flying reinforcement die 30 by the action of the pneumatic cylinder or the oil cylinder. The bending part 50 of the side to be bent of the steel mesh 90 is slowly lifted by the connecting rod mechanism 61 under the action of the bending driving part 62, and the steel mesh 90 forms a Z-shaped bend under the "block" of the bending die 20 and the flying reinforcement die 30.

[0065] After the bending of the flying bar on one side of the reinforcement mesh 90 is completed, the bending die 20 moves as a whole along the transverse direction of the reinforcement mesh 90, and the longitudinal bars of the reinforcement mesh 90 are withdrawn. Then, the mesh grabbing device grabs the reinforcement mesh 90 and grabs the other side of the reinforcement mesh 90 to the reinforcement bending device, and then the bending of the flying bar on the other side of the reinforcement mesh 90 is performed (as shown in Figure 8 and Figure 9 The height of the Z-shaped structure can be determined by the height of the flying bar die 30 rotating and stopping above the reinforcement mesh.

[0066] If the flying bar die 30 does not move (as shown in Figure 12 and Figure 13 The initial position of the flying bar die 30 is kept horizontal, and the overall 90° bending, 135° bending or multi-angle continuous bending can be achieved.

[0067] The present application also provides a reinforcement cage production line, which comprises the above-mentioned reinforcement bending device.

[0068] In the present embodiment, the reinforcement cage production line further comprises a reinforcement conveying device and a welding device, and the reinforcement conveying device and the welding device can adopt the structures in the prior art, and thus the detailed arrangement is not described herein.

[0069] From the above description, it can be seen that the above-mentioned embodiments of the present application achieve the following technical effects:

[0070] 1. The reinforcement bending device comprises a bending die 20, a bending part 50, a flying bar die 30, a flying bar driving mechanism 40 and a bending driving mechanism 60. The plurality of die cores 22 in the bending die 20 are arranged at equal intervals. The flying bar die 30 can rotate around a first axis. The bending part 50 can swing around a second axis. The reinforcement mesh can be bent by the flying bar die 30 at one time. The bending angle is consistent. The bending efficiency is high. The flying bar bending in the length direction of the reinforcement mesh can be achieved. The overall 90° bending, 135° bending or multi-angle continuous bending of the longitudinal bars of the reinforcement mesh can be achieved.

[0071] 2. The flying bar die 30 can rotate around the first axis. The flying bar driving mechanism 40 is connected with the flying bar die 30 through a gear and rack mechanism or a chain wheel and chain mechanism. In the bending process, the flying bar die 30 can be fixed and locked by the locking arm.

[0072] 3. The bending part 50, the flying bar die 30, the flying bar driving mechanism 40 and the bending driving mechanism 60 form a bending mechanism. Two bending mechanisms are symmetrically arranged on both sides of the bending die 20, and the bending of the reinforcement mesh on both sides is achieved.

[0073] 4. The bending part 50 is connected with the bending driving part 62 through the connecting rod mechanism 61, and the driving mode is simple.

[0074] 5. The plurality of mold cores 22 can be individually lifted, each mold core 22 corresponding to a longitudinal reinforcement position, and the plurality of mold cores 22 moving back and forth as a whole along the transverse direction of the reinforcement mesh under the action of a pneumatic cylinder or a hydraulic cylinder.

[0075] Obviously, the above embodiments are merely exemplary and are not intended to limit the implementation. Based on the above description, those skilled in the art can make other different forms of changes or modifications. Here, it is not necessary and impossible to exhaust all the implementations. The obvious changes or modifications derived therefrom are still within the protection scope of the present application.

Claims

1. A steel bar bending device, characterized in that, The steel bar bending device comprises a rack (10), a bending die (20) and a bending mechanism, the bending die (20) is adapted to cooperate with the top of a plurality of steel bars to be bent of a steel mesh (90), the bending die (20) comprises a die base (21) and a plurality of die cores (22), the die base (21) is arranged on the rack (10), and the plurality of die cores (22) are sequentially arranged on the die base (21) along the extension direction of the die base (21), each die core (22) is adapted to cooperate with the top of the steel bar to be bent, and each die core (22) can be individually lifted to adapt to the specifications of different steel meshes (90) and the positions of longitudinal bars of the steel meshes (90). The bending mechanism comprises a flying bar die (30) which is rotatably arranged on the rack (10), the flying bar die (30) has a working position above the plurality of steel bars to be bent and an initial position; a flying bar driving mechanism (40) which is arranged on the rack (10) and connected with the flying bar die (30) to drive the flying bar die (30) to switch between the working position and the initial position; a bending part (50) which is swingably arranged on the rack (10), the bending part (50) is located between the flying bar die (30) and the bending die (20) and is adapted to cooperate with the bottom of the plurality of steel bars to be bent; a bending driving mechanism (60) which is connected with the bending part (50), the bending driving mechanism (60) drives the bending part (50) to swing to simultaneously bend the plurality of steel bars to be bent. The steel bar bending device further comprises a locking mechanism (70) which is arranged on the rack (10), the locking mechanism (70) has a locking state of locking the flying bar die (30) at the working position and an unlocking state of allowing the flying bar die (30) to rotate.

2. The reinforcing bar bending apparatus according to claim 1, characterized by The locking mechanism (70) comprises a locking piece (71) which is movably arranged and a locking driving piece which is connected with the locking piece (71) to drive the locking piece (71) to move.

3. The rebar bending apparatus of claim 2, wherein, The locking piece (71) is a swingable locking arm or a movable locking pin.

4. The reinforcing bar bending apparatus according to claim 3, characterized by The bending driving mechanism (60) comprises a connecting rod mechanism (61) and a bending driving part (62), the connecting rod mechanism (61) is connected with the rack (10), the bending part (50) and the bending driving part (62), and the bending driving part (62) drives the bending part (50) to swing through the connecting rod mechanism (61).

5. The rebar bending apparatus according to any one of claims 1 to 4, characterized in that, The connecting rod mechanism (61) comprises a first connecting rod (611) and a second connecting rod (612), a first end of the first connecting rod (611) is hinged to the rack (10), a second end of the first connecting rod (611) is hinged to a part of the bending part (50) close to the top of the bending part (50), a first end of the second connecting rod (612) is hinged to the bottom of the bending part (50), and a second end of the second connecting rod (612) is fixedly connected with the bending driving part (62).

6. The rebar bending apparatus of claim 5, wherein, ​ 7. The rebar bending apparatus of claim 6, wherein, The bending part (50) comprises a bending shaft (51) and a plurality of bending arms (52), the top end of the bending arm (52) is connected to the bending shaft (51), the bottom end of the bending arm (52) is hingedly connected to the first end of the second connecting rod (612), and the part between the top end and the bottom end of the bending arm (52) is hingedly connected to the second end of the first connecting rod (611).

8. The rebar bending apparatus according to any one of claims 1 to 4, characterized by, The flying bar die (30) comprises a flying bar shaft (31) and a plurality of flying bar arms (32), the first end of the flying bar arm (32) is fixedly connected to the flying bar shaft (31), and the second end of the flying bar arm (32) is fixedly connected to the flying bar driving mechanism (40).

9. The rebar bending apparatus according to any one of claims 1 to 4, characterized by, The number of the bending mechanisms is two, and the two bending mechanisms are symmetrically arranged on the two sides of the bending die (20).

10. The rebar bending apparatus according to any one of claims 1 to 4, characterized by, The flying bar driving mechanism (40) comprises a rotating shaft (41), a transmission mechanism (42) and a flying bar driving member, the flying bar die (30) is fixed on the rotating shaft (41), the rotating shaft (41) is rotatably arranged on the rack (10), and the flying bar driving member is arranged on the rack (10) and drives the rotating shaft (41) to rotate through the transmission mechanism (42).

11. A reinforcement cage production line, characterized in that, The steel bar bending equipment comprises the steel bar bending equipment according to any one of claims 1 to 10.

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