Machining assembly line of reinforcing mesh and reinforcing mesh cage

Abstract

The invention relates to the technical field of reinforcing mesh machining, in particular to a machining assembly line for reinforcing meshes and reinforcing mesh cages. The technical scheme adopted by the invention is as follows: the reinforcing mesh cage processing assembly line comprises a rack, comprising a wire feeding device used for conveying longitudinal steel bars and transverse steel bars, a welding device used for welding the longitudinal steel bars and the transverse steel bars into steel bar meshes, a bending device used for bending reserved bending sections of the transverse steel bars, a cutting device used for cutting off the steel bar meshes and a folding device used for folding the two steel bar meshes into a steel bar mesh cage. The bending device comprises a first bending station which is provided with at least one reinforcing steel bar bending mechanism arranged on a first rack and used for bending reinforcing steel bars to be bent on the two sides of a reinforcing steel bar mesh to enable the reinforcing steel bars to be bent to form vertical bending sections; and the second bending station is provided with at least one reinforcing steel bar stamping mechanism arranged on a second rack and used for stamping the vertical bending section to form a bending part.

Description

Technical Field

[0001] The invention relates to the technical field of steel mesh processing, and in particular to a processing line for a steel mesh and a steel mesh cage. Background Art

[0002] Steel mesh and steel cage are widely used in ALC board (autoclaved lightweight concrete board) and other building materials, mainly playing the role of structural skeleton. Since steel bar is needed to hang the mesh or cage in the mold during pouring, steel bar sockets need to be set on both sides of the steel mesh and cage.

[0003] In the prior art, plastic clips are generally used to fix the two sides of the steel mesh, and steel bar insertion holes are provided on the plastic clips. The plastic clips can also be used as connectors to combine the steel mesh into a steel mesh cage. The strength of the plastic clips is much lower than that of the steel bars, which has a certain impact on the structural strength of the ALC board, and the assembly of the plastic clips will affect the overall production efficiency. Therefore, the applicant proposes to directly use the steel bars of the steel mesh to bend, and use the bent parts to assemble the steel mesh cage, and the steel bar insertion holes can be processed in the bent sections to improve the structural strength of the ALC board and improve production efficiency.

[0004] At present, it is necessary to design a processing line that can complete the above functions. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies in the above-mentioned background technology and provide a processing line for a steel mesh and a steel mesh cage.

[0006] The technical solution adopted by the present invention is as follows:

[0007] A steel mesh cage processing line includes a wire feeding device for conveying longitudinal steel bars and transverse steel bars, a welding device for welding the longitudinal steel bars and transverse steel bars into a steel mesh, a bending device for bending a bending section reserved for the transverse steel bars, a cutting device for cutting the steel mesh, and a closing device for closing two steel meshes to form a steel mesh cage, wherein the bending device includes:

[0008] The first bending station has at least one steel bar bending mechanism disposed on the first frame, and is used to bend the steel bars to be bent on both sides of the steel bar mesh to form a vertical bending section;

[0009] The second bending station has at least one steel bar punching mechanism arranged on the second frame, which is used for punching the vertical bending section to form a bending portion.

[0010] In a further solution, at least one bending and forming mechanism is further provided on the second frame for directly bending the bending section to form a steel drill socket.

[0011] In a further embodiment, at least one of the first frame and the second frame is slidably mounted on a base and can slide longitudinally on the base under the action of a driving member.

[0012] In a further embodiment, the steel bar bending mechanism has:

[0013] Working platform for placing steel mesh;

[0014] A clamping mechanism, located above the working platform, used to clamp a portion of the steel bars to be bent of the steel mesh on the working platform below;

[0015] A lifting mechanism is located below the working platform and is used to lift the portion of the steel bars to be bent on the working platform that is not pressed by the pressing mechanism, so as to cooperate with the pressing mechanism to bend the steel bars to be bent on the working platform to form a vertical bending section;

[0016] The jacking mechanism has a jacking slideway which is arranged vertically and can only move vertically, a jacking arm is installed in the upper part of the jacking slideway, the lower end of the jacking arm is rotatably connected to the jacking slideway via a rotating shaft, and a V-groove roller for contacting the steel bar to be bent is installed at the upper end of the jacking arm;

[0017] The jacking slide is connected to a jacking drive mechanism that can drive the jacking slide to move up and down, and the jacking arm is connected to a bending angle adjustment mechanism that can drive the jacking arm to rotate a certain angle around its lower end rotation axis during the jacking arm moving up with the jacking slide.

[0018] In a further solution, the bending angle adjustment mechanism includes a connecting rod seat, the connecting rod seat is connected to one end of the connecting rod via a rotating shaft, and the other end of the connecting rod is connected to the middle part of the jacking arm via the rotating shaft;

[0019] The connecting rod seat is installed below the working platform through a vertical position adjustment mechanism to adjust the vertical position of the connecting rod seat.

[0020] In a further solution, the vertical position adjustment mechanism has a guide rod, a fixed seat and a bushing, wherein the upper end of the guide rod is provided with an external thread, the fixed seat is fixed to the lower end of the working platform and the fixed seat is provided with a screw hole that matches the external thread on the guide rod, and the guide rod is connected to the connecting rod seat via a bushing.

[0021] In a further solution, the clamping mechanism comprises a bending upper mold fixing plate for contacting and clamping the steel bars to be bent, and a clamping drive mechanism capable of driving the bending upper mold fixing plate to move up and down.

[0022] In a further solution, it also includes a steel bar pre-pressing mechanism installed on the first frame, which is used to press and pre-press the steel bars to be bent and place the steel bars in a specified position before the pressing mechanism presses the steel bars to be bent.

[0023] In a further solution, the steel bar prestressing mechanism includes a prestressing plate and a prestressing driving mechanism capable of driving the prestressing plate to move up and down, wherein a guide groove adapted to the steel bar is formed on the lower end surface of the prestressing plate.

[0024] In a further solution, the pre-pressing plate is located below the upper bending die fixing plate on the clamping mechanism, and a groove matching the pre-pressing plate is formed on the lower side of the upper bending die fixing plate.

[0025] In a further solution, the steel bar stamping mechanism is installed on a first lifting beam and is used to stamp the vertical bent section after being bent by the steel bar bending mechanism. The first lifting beam is installed on the second frame in a liftable manner.

[0026] In a further embodiment, the steel bar punching mechanism comprises:

[0027] A punching groove is horizontally movably mounted on the first lifting beam via a horizontal transverse movement mechanism;

[0028] A stamping die is fixed on one side of the groove wall in the stamping groove;

[0029] A punching punch is installed on the other side of the punching slot wall and is used opposite to the punching die;

[0030] The stamping driving mechanism is fixed on the stamping groove, and its action end is connected to the stamping punch, and can drive the stamping punch to move toward the stamping die.

[0031] In a further solution, a workbench for supporting the steel mesh is provided on the second frame, and a liftable pressure strip for pressing the steel mesh is provided above the workbench.

[0032] In a further solution, the bending forming mechanism includes a second lifting beam and two bending components, the bending components include a sliding seat and a movable pressing die and a movable backing die arranged on the sliding seat, the sliding seats of the two bending components are slidably matched on the second lifting beam, the sliding seats are a travel channel for the steel mesh, and the sliding seats can be relatively close or separated under the action of the driving member;

[0033] The movable backing mold can slide along the transverse direction of the steel mesh under the action of the driving member, and the movable pressing die can slide along the longitudinal direction of the steel mesh under the action of the driving member, so that the vertical bending section of the steel mesh is pressed against the movable backing mold, so that the bending section is bent along the forming surface of the movable backing mold to form a steel bar insertion hole.

[0034] In a further embodiment, the forming surface of the movable master mold includes a primary bending forming surface and a secondary bending forming surface.

[0035] The movable pressing mold is provided with a primary pressing opening corresponding to the primary bending forming surface, and a secondary pressing opening corresponding to the secondary bending forming surface;

[0036] The bending section is first pressed on the primary bending forming surface by the primary die pressing port to be bent, and then is pressed on the secondary bending forming surface by the secondary die pressing port to be bent.

[0037] In a further solution, the movable pressing die is provided with a spring rod which is telescopic in the longitudinal direction, and when the movable pressing die moves toward the movable backing die, the spring rod pre-presses the bent section onto the movable backing die.

[0038] In a further solution, the sliding seat is provided with a receiving groove for receiving the longitudinal steel bars.

[0039] In a further solution, the bending and forming mechanism is installed on the second frame in a liftable manner via a second lifting beam.

[0040] In a further scheme, the wire feeding device is provided with a steel bar straightening device, including a straightening frame and at least one group of straightening mechanisms installed on the straightening frame, the straightening mechanism including a plurality of straightening cylinders arranged side by side, each straightening cylinder being connected to a driving mechanism and realizing circumferential rotation under the drive of the driving mechanism, each straightening cylinder being provided with a group of radial threaded through holes, a certain axial spacing being maintained between these threaded through holes, a straightening block being installed in the threaded through holes, both ends of the straightening block being tightened by top screws screwed into the threaded through holes, a straightening through hole being provided in the middle of the straightening block, the straightening through hole being coaxial with the straightening cylinder, and the aperture of the straightening through hole being adapted to the outer diameter of the steel bar.

[0041] In a further solution, the driving mechanism includes a straightening motor, a plurality of transmission gears and a driving gear. The transmission gears are connected to the straightening cylinder one-to-one. The transmission gears are meshed directly or through intermediate gears in sequence. The driving gear is fixed on the output shaft of the straightening motor and meshes with one of the transmission gears.

[0042] In a further solution, a plurality of auxiliary holes are provided on the straightening cylinder, and the auxiliary holes are staggered with the threaded through holes.

[0043] In a further solution, the straightening block is square, the threaded through hole is adapted to the straightening block, and inner walls around the threaded through hole are provided with internal threads adapted to the top screw.

[0044] In a further solution, the axis of the threaded through hole is perpendicular to the axis of the straightening cylinder, and the axes of all the threaded through holes are in the same plane.

[0045] In a further solution, a plurality of cone sleeves for guiding the steel bars are provided at the front end of the straightening mechanism, and the cone sleeves correspond to the straightening cylinders one by one and are coaxial.

[0046] In a further solution, at least one traction mechanism is provided at the rear end of the straightening mechanism, and the traction mechanism includes several pairs of traction wheels, a traction motor, a rotating shaft swing frame and a cylinder; the rotating shaft is driven by the traction motor, each pair of traction wheels corresponds to a straightening cylinder, and a channel for steel bars is provided between the driving wheel and the pressure wheel of each pair of traction wheels. The driving wheel is fixed on the rotating shaft, and the pressure wheel is rotatably installed on the swing frame. One end of the swing frame is hinged to the straightening frame through a hinge shaft, and the other end is cantilevered and hinged to the top rod of the cylinder. When the top rod of the cylinder moves, the pressure wheel presses the traction wheel or leaves the traction wheel.

[0047] In a further solution, grooves are provided on the circumferential outer walls of the traction wheel and the pressure wheel. When the pressure wheel presses against the driving wheel, the gap formed by the grooves between the two wheels serves as a passage for the steel bars.

[0048] In a further solution, a conduit is provided between the outlet of the straightening cylinder and the driving wheel of the traction mechanism.

[0049] The beneficial effects of the present invention are:

[0050] (1) The present invention can automatically produce single steel mesh and steel mesh cage, with high work efficiency and high product strength;

[0051] (2) The two bending components can be relatively close or separated, which can adapt to steel meshes of different widths, and can also facilitate the vertical bending section to enter between the movable pressing die and the movable supporting die for bending, and can also avoid the moving steel mesh; the bending section is bent in batches, which can facilitate the demoulding operation;

[0052] (3) The bending device is divided into two stations, which can separate the bending process of the bending section from the subsequent steel drill hole bending process (applicable to single mesh) and the bending part stamping process (applicable to double mesh), effectively improving the processing efficiency; both stations can adjust their positions to adapt to steel meshes of different specifications;

[0053] (4) Both the steel bar stamping mechanism and the bending and forming mechanism can be raised and lowered, and which mechanism is connected to the steel bar bending mechanism of the first bending station can be selected according to the type of steel bar mesh to be processed, and the steel bar stamping mechanism can be raised and lowered to adapt to bending sections of different heights;

[0054] (5) The present invention uses a straightening cylinder that can rotate in the circumferential direction. When the straightening blocks fixed inside the straightening cylinder rotate with the straightening cylinder, the straightening through holes of the straightening blocks apply force to the curved part of the steel bar to straighten the curved part. The rotating straightening blocks can straighten the steel bar 360° in the circumferential direction. The structure is simple and the straightening effect is good. The straightening cylinders use gear transmission to achieve basically the same rotation speed. The straightened steel bars have good consistency. The pressing degree of the pressing wheel can be adjusted by the cylinder pressure to adapt to steel bars of various specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0056] Figure 1 It is a structural block diagram of the present invention.

[0057] Figure 2 1 is a schematic diagram of the three-dimensional structure of the bending and forming mechanism in an embodiment of the present invention, which includes a steel mesh.

[0058] Figure 3 1 is a schematic diagram of the three-dimensional structure of a bending assembly in an embodiment of the present invention, which includes a steel mesh.

[0059] Figure 4 It is a side view schematic diagram of a bending assembly in an embodiment of the present invention, which includes a steel mesh and hides the guide block.

[0060] Figure 5 It is a schematic diagram of the three-dimensional structure of an embodiment of the present invention.

[0061] Figure 6 1 is a schematic diagram of the three-dimensional structure of the first bending station in an embodiment of the present invention, in which the first bending station is installed on a base.

[0062] Figure 7 It is a schematic diagram of the three-dimensional structure of the second bending station in an embodiment of the present invention. In the figure, the second bending station is installed on a base, and a bending forming mechanism is hidden.

[0063] Figure 8 It is a schematic diagram of the rear view structure of the second bending station in an embodiment of the present invention.

[0064] Fig. 9 It is a structural schematic diagram of a steel bar punching mechanism in an embodiment of the present invention.

[0065] Fig.10 It is a schematic diagram of the three-dimensional structure of the lifting mechanism in an embodiment of the present invention.

[0066] Fig.11 It is a schematic diagram of the main structure of the jacking mechanism in an embodiment of the present invention.

[0067] Fig.12 It is a schematic structural diagram of the jacking state of the jacking mechanism in an embodiment of the present invention.

[0068] Fig.131 is a schematic diagram of the state of the jacking arm when the jacking slide rises to the highest point in an embodiment of the present invention (the dotted line is the state after the connecting seat is lowered).

[0069] Fig.14 It is a schematic structural diagram of a clamping mechanism and a steel bar pre-compression mechanism in an embodiment of the present invention.

[0070] Fig.15 It is a schematic diagram of the three-dimensional structure of a steel bar straightening device in an embodiment of the present invention.

[0071] Fig.16 It is a side structural schematic diagram of a steel bar straightening device in an embodiment of the present invention.

[0072] Fig.17 It is a front view structural schematic diagram of a steel bar straightening device in an embodiment of the present invention.

[0073] Fig.18 1 is a schematic diagram of the top view of the steel bar straightening device in an embodiment of the present invention.

[0074] Fig.19 It is a schematic diagram of the installation method of the straightening cylinder, the straightening block and the top screw in the embodiment of the present application.

[0075] Fig. 20 It is a schematic diagram of the process of bending a single steel mesh to form a steel drill insertion hole in an embodiment of the present invention.

[0076] Fig.21 It is a structural schematic diagram of the steel bar insertion hole after two steel mesh sheets are spliced ​​together to form a steel mesh cage in an embodiment of the present invention.

[0077] Reference numerals: frame 1, traction motor 2, straightening mechanism 3, cone sleeve 31, straightening cylinder 32, guide tube 33, box body 34, bearing seat 35, auxiliary hole 36, transmission gear 37, straightening block 38, straightening through hole 39, threaded through hole 310, top screw 311, internal thread 312, driving gear 313, gas tank 4, straightening motor 5, rotating shaft 6, cylinder 7, bracket 8, swing frame 9, pressure wheel 10, hinged shaft 11, gantry 12, driving wheel 13;

[0078] The second lifting beam 100, the bending assembly 101, the receiving groove 102, the primary bending forming surface 103, the secondary bending forming surface 104, the sliding seat 105, the movable die 106, the guide block 107, the spring rod 108, the primary molding port 109, the secondary molding port 110, the movable backing mold 111, the height adjustment screw rod 112, the workbench 113, the pressure strip 114, the cylinder 115, the steel mesh 200, the bending section 201, the bending part 202, the steel drill socket 203, the base 300, the second frame 400, the first frame 500, the working platform 501, the lifting slide 50 2. Lifting arm 503, V-groove roller 504, lifting drive mechanism 505, connecting rod seat 506, connecting rod 507, guide rod 508, fixed seat 509, bushing 510, bending upper die fixing plate 511, clamping drive mechanism 512, second support plate 513, stamping lifting mechanism 514, stamping groove 515, stamping die 516, stamping punch 517, stamping drive mechanism 518, pre-pressing plate 519, pre-pressing drive mechanism 520, guide rod 521, guide member 522, horizontal traverse mechanism 523, lifting arm 524, rotating shaft 525, spacing adjustment screw 526. DETAILED DESCRIPTION

[0079] In order to enable ordinary technicians in the field to more clearly understand the objectives, technical solutions and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited to the following embodiments.

[0080] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0081] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0082] like Figure 1As shown, this embodiment provides a steel mesh cage processing production line, including a wire feeding device for conveying longitudinal steel bars and transverse steel bars, a welding device for welding longitudinal steel bars and transverse steel bars into steel mesh sheets, a bending device for bending the bending sections reserved for transverse steel bars, a cutting device for cutting the steel mesh sheets, a pushing device for sending the cut steel mesh sheets backwards, and a closing device for closing two steel mesh sheets to form a steel mesh cage. The wire feeding device includes a longitudinal wire feeding device and a transverse wire feeding device, both of which can adopt existing technologies. For example, the transverse wire feeding device can deliver transverse steel bars of two lengths, wherein the two ends of the transverse steel bars with a longer length extend beyond the two sides of the steel mesh sheets to form a bending section for bending. The welding device, the cutting device, the pushing device, and the closing device can all adopt existing technologies. For example, the welding device can adopt an automatic mesh welding machine.

[0083] like Figure 4 As shown, the bending device comprises:

[0084] The first bending station, such as Figure 5 As shown, there is at least one steel bar bending mechanism arranged on the first frame, which is used to bend the steel bars to be bent on both sides of the steel bar mesh to form a vertical bending section; generally, there are two steel bar bending mechanisms;

[0085] The second bending station, such as Figure 6 As shown, there are at least one steel bar stamping mechanism, at least one bending and forming mechanism and a workbench 113 for supporting the steel bar mesh arranged on the second frame, and a liftable pressure strip 114 for pressing the steel bar mesh during the stamping and bending forming process is arranged above the workbench, and the pressure strip is driven by a driving member and can be lifted vertically in cooperation with a guide member. The steel bar stamping mechanism is used to stamp the vertical bending section to form a bending portion 202.

[0086] Generally, there are two steel bar stamping mechanisms and two bending forming mechanisms, and the stamping directions (or arrangement directions) of the two steel bar stamping mechanisms are opposite, and the directions of the stamped bending parts are opposite, such as Fig.21 As shown, after the two steel mesh sheets are folded up and down and welded into a steel mesh cage, the two bent portions 202 are arranged opposite to each other to form a steel bar insertion hole 203.

[0087] The second lifting beam and the sliding pair of the bending and forming mechanism can be installed on the second frame in a liftable manner. The height adjustment screw rod 112 is used in conjunction with the nut to control the lifting of the second lifting beam. Obviously, the lifting of the second lifting beam can also be controlled by components such as a cylinder.

[0088] In order to adjust the distance between the first bending station and the second bending station and adapt to the steel mesh with different transverse steel bar spacing, in this embodiment, at least one of the first frame and the second frame is slidably mounted on the base, and can slide longitudinally on the base under the action of a driving member. The driving member is recommended to adopt a structure in which a spacing adjustment screw rod 526 cooperates with a nut. Generally, the first bending station and the second bending station are both slidably mounted on the base and are respectively connected to the spacing adjustment screw rod 526 through nuts, and the thread directions of the screw rod parts connected to the nuts of the first bending station and the second bending station are opposite.

[0089] When pouring some ALC slabs, single steel mesh is used for structural reinforcement, such as Fig. 20 As shown, it is necessary to process steel bar insertion holes 203 on both sides of the single mesh, and the bending and forming mechanism is mainly used for bending and forming the steel bar insertion holes of this type of steel mesh.

[0090] like Figure 2 As shown, the steel drill socket bending and forming mechanism includes a second lifting beam 100 and two bending assemblies 101. The main function of the second lifting beam 100 is to serve as the installation base of the bending assembly 101. Obviously, the two bending assemblies 101 should be installed on both sides of the steel mesh 200, located on the left and right sides of the second lifting beam 100. Each bending assembly 101 includes a sliding seat 105 and a movable pressing die 106 and a movable backing die 111 slidably arranged on the sliding seat 105. The sliding seats 105 of the two bending assemblies 101 are slidably matched on the second lifting beam 100 through a sliding pair, and each is driven by a driving member. The sliding direction of the sliding seat 105 is the lateral direction of the steel mesh 200. The sliding seats 105 of the two bending assemblies 101 are between the sliding seats 105 of the two bending assemblies 101. The travel channel of the steel mesh 200 is provided. Under the action of the driving member, the sliding seats 105 of the two bending assemblies 101 can be relatively close or separated, and can adapt to steel meshes 200 of different widths.

[0091] like Figure 2 , Figure 3As shown, in this embodiment, a transverse through hole is provided on the sliding seat 105, and the movable backing mold 111 is movably installed in the transverse through hole. A driving member is provided on the outer wall of the sliding seat 105, and the movable backing mold 111 can slide in the transverse direction of the steel mesh 200 under the action of the driving member. A guide block 107 with a longitudinal guide groove and a longitudinal through hole is provided in the sliding seat 105, and the movable pressing mold 106 is movably installed in the longitudinal guide groove. One end of the movable pressing mold 106 is connected to the driving member, and the other end faces the side where the movable backing mold 111 is located. The movable pressing mold 106 can slide in the longitudinal direction of the steel mesh 200 under the action of the driving member. The vertical bending section 201 of the steel mesh 200 can be allowed to enter between the guide block 107 and the movable backing mold 111. When the movable pressing die 106 is pushed out, the vertical bending section 201 of the steel mesh 200 is pressed against the movable backing mold 111, so that the bending section 201 bends along the forming surface of the movable backing mold 111 to form a steel bar insertion hole.

[0092] Specifically, Figure 4 As shown, the molding surface of the movable mold 111 includes a primary bending molding surface 103 and a secondary bending molding surface 104, and the primary bending molding surface 103 is relatively closer to the transverse through hole;

[0093] The lower side of one end of the movable die 106 facing the movable backing die 111 is provided with a primary die pressing opening 109 corresponding to the primary bending forming surface 103 and a secondary die pressing opening 110 corresponding to the secondary bending forming surface 104. The primary die pressing opening 109 is located above the secondary die pressing opening 110.

[0094] The bending section 201 is first pressed by the primary die pressing port 109 on the primary bending forming surface 103 for bending, and then the driving member drives the movable backing die 111 to retract, so that the secondary die pressing port 110 is opposite to the movable die 106, and then the bending section 201 that has been bent once is pressed by the secondary die pressing port 110 on the secondary bending forming surface 104 for bending, forming a steel drill socket, and the plane where the steel drill socket is located is basically perpendicular to the transverse steel bar.

[0095] A spring rod 108 is arranged in the longitudinal through hole of the guide block 107 , and the spring rod 108 is connected to the movable die 106 and can be longitudinally extended and retracted. When the movable die 106 moves toward the movable backing die 111 , the spring rod 108 pre-presses the bending section 201 onto the movable backing die 111 .

[0096] The sliding seat 105 and the guide block 107 are provided with a receiving groove 102 for receiving the longitudinal steel bars, so as to prevent the outermost longitudinal steel bars from being blocked, thereby allowing the bending section 201 to enter between the guide block 107 and the movable backing plate 111 .

[0097] In this embodiment, it is recommended to use the cylinder 115 as the driving member of the sliding seat 105.

[0098] When the bending operation is not performed, the distance between the two bending components 101 is relatively far. When the to-be-bent sections 201 on both sides of the steel mesh 200 reach the predetermined position, the distance between the two bending components 101 becomes closer, and the vertical bending section 201 of the steel mesh 200 enters between the guide block 107 and the movable support mold 111. The primary bending forming surface 103 of the movable support mold 111 faces the primary molding port 109 of the movable pressure die 106. The movable pressure die 106 is pushed out to bend the upper end of the bending section 201. Then the movable support mold 111 slides to make the secondary bending forming surface 104 face the secondary molding port 110 of the movable pressure die 106. The movable pressure die 106 is pushed out again, and the bending section 201 is bent again on the secondary bending forming surface 104 to form a steel bar insertion hole. During the two bending processes, the spring rod 108 maintains the top pressure on the bending section 201 to reduce the deviation of the bending section 201. Afterwards, the movable pressing die 106 and the movable backing die 111 are reset, and the two bending components 101 are separated again to detach from the steel mesh 200, waiting for the next operation.

[0099] like Figure 5 , Figure 6 as well as Figure 10 to Figure 12 As shown, the bending device 500 includes a first frame 500 and two bending stations, each of which has a steel bar pre-stressing mechanism, a steel bar bending mechanism, etc., wherein the steel bar bending mechanism has a working platform 501, a clamping mechanism and a jacking mechanism, etc. The working platform 501 is fixed on the first frame 500, and the working platform 501 is used to place the steel mesh 200 to be bent.

[0100] like Fig.14 As shown, the steel bar preloading mechanism includes a preloading plate 519 and a preloading drive mechanism 520, wherein the preloading plate 519 is located above the working platform 501, and a guide groove adapted to the transverse steel bar is formed on the lower end surface of the preloading plate 519, and the upper part of the preloading plate 519 is connected to the action end of the preloading drive mechanism 520 through a connecting piece, and the preloading drive mechanism 520 is installed and fixed on the first frame 500. In this embodiment, the preloading drive mechanism 520 can drive the preloading plate 519 to move up and down. When the preloading plate 519 moves down to press the transverse steel bar to be bent on the working platform 501, the transverse steel bar to be bent on the steel mesh 200 is positioned at a designated position on the working platform 501 under the action of the guide groove on the lower end surface of the preloading plate 519.

[0101] The clamping mechanism includes a bending upper mold fixing plate 511 and a clamping drive mechanism 512, wherein the bending upper mold fixing plate 511 is located above the pre-pressing plate 519, and the lower edge of the bending upper mold fixing plate 511 is provided with a bending portion corresponding to the pre-pressing plate 519, so that the bending upper mold fixing plate 511 can further clamp the transverse steel bars clamped and positioned by the pre-pressing plate 519; the bending upper mold fixing plate 511 is connected to the action end of the clamping drive mechanism 512, and the clamping drive mechanism 512 is fixed on the first frame 500. The clamping drive mechanism 512 can drive the bending upper mold fixing plate 511 to move up and down, and the bending upper mold fixing plate 511 moves downward to clamp the middle section of the transverse steel bars to be bent on the working platform 501.

[0102] like Figure 5 , Figure 6 as well as Figure 10 to Figure 12 As shown, the jacking mechanism is located below the working platform 501 and has a jacking slide 502, a jacking arm 503, a bending angle adjustment mechanism, etc.

[0103] There are two lifting slides 502, and the two lifting slides 502 correspond to the positions of the bending sections 201 at both ends of the transverse steel bars to be bent. The lifting slides 502 are arranged vertically, and a vertical slide rail I is installed on the lifting slide 502, and a slider I is installed on the vertical slide rail I. The slider I is connected to the first frame 500 via the slider base, so that the lifting slide 502 can only move vertically under the action of the slider I and the vertical slide rail I.

[0104] The lower ends of the two lifting slides 502 are commonly connected to a lifting arm, and a lifting drive mechanism 505 is connected to the lower middle portion of the lifting arm. The lifting drive mechanism 505 can drive the two lifting slides 502 to move up and down via the lifting arm.

[0105] The lifting arm 503 is installed in the upper inner part of the lifting slide 502, and the lower end of the lifting arm 503 is rotatably connected to the middle part of the lifting slide 502 via the rotating shaft 525, and the upper end of the lifting arm 503 is rotatably connected to the V-groove roller 704 via the rotating shaft 525. The upper groove of the V-groove roller 704 is adapted to the steel bar, and the V-groove roller 704 is used to contact the steel bar when the lifting mechanism moves upward.

[0106] A bending angle adjustment mechanism is provided in the middle position of the two lifting slides 502. The bending angle adjustment mechanism is connected to the two lifting arms 503 on the two lifting slides 502, and is used to adjust the rotation angle of the lifting arm 503 around its lower end rotating shaft 525 during the upward movement of the lifting slide 502, thereby adjusting the angle of bending the steel bars by the lifting arm 503 and the V-groove roller 704.

[0107] The bending angle adjustment mechanism includes a connecting rod seat 506 and a vertical position adjustment mechanism, wherein the connecting rod seat 506 is connected with two connecting rods 507 corresponding to the two lifting arms 503, one end of the connecting rod 507 is connected to the connecting rod seat 506 via a pin, and the other end of the connecting rod 507 is connected to the middle part of the corresponding lifting arm 503 via a pin; the connecting rod seat 506 is installed and fixed on the lower end surface of the working platform 501 with an adjustable vertical position via the vertical position adjustment mechanism, and the vertical position of the connecting rod seat 506 is adjusted to achieve the angle of rotation of the lifting arm 503 around its lower end rotating shaft 525 during the upward movement of the lifting slide 502.

[0108] The vertical position adjustment mechanism comprises a guide rod 508, a fixed seat 509 and a bushing 510, wherein the guide rod 508 is arranged vertically, and the connecting rod seat 506 is installed on the guide rod 508 via the bushing 510. The upper end of the guide rod 508 is formed with an external thread, and the fixed seat 509 is fixed to the lower end surface of the working platform 501. The fixed seat 509 is formed with a screw hole that matches the external thread on the guide rod 508. The guide rod 508 is threadedly connected to the fixed seat 509. The upper and lower positions of the guide rod 508 are adjusted by rotating the guide rod 508 to cooperate with the screw holes on the fixed seat 509, thereby adjusting the upper and lower positions of the connecting rod seat 506 on the guide rod 508.

[0109] In this embodiment, the bushing 510 is fixed on the guide rod 508, and a limiting ring is formed on the upper end of the bushing 510. The connecting rod seat 506 is sleeved on the bushing 510, and the limiting ring on the upper end of the bushing 510 limits the connecting rod seat 506 from moving upward.

[0110] In this embodiment, a plurality of vertically arranged guide rods 521 are mounted on the connecting rod seat 506, and a guide member 522 is mounted on the lifting arm 524 below the connecting rod seat 506 corresponding to the guide rod 521. A guide hole matching the guide rod 521 is provided on the guide rod 521, and the upper end of the guide rod 521 is connected to the connecting rod seat 506, and the lower end of the guide rod 521 passes downward through the guide hole on the guide member 522. In this embodiment, a spring is mounted on the guide rod 521, and the upper end of the spring abuts against the retaining ring on the upper part of the guide rod 521, and the lower end of the spring is supported on the guide member 522.

[0111] In this embodiment, the connecting rod seat 506 is sleeved on the bushing 510, and the two can rotate relatively. Under the action of the guide rod 521 and the spring, the connecting rod seat 506 is pressed from bottom to top on the limit ring at the upper end of the bushing 510.

[0112] In this embodiment, the guide rod 508 is rotated and the threaded connection between the guide rod 508 and the fixing seat 509 is utilized to adjust the vertical position of the bushing 510 on the guide rod 508, thereby adjusting the up and down position of the connecting rod seat 506, and finally achieving the inclination adjustment of the lifting arm 503.

[0113] like Figure 7 , Fig. 9As shown, the steel bar stamping mechanism has a first lifting beam 513 and a stamping groove 515, wherein sliders II are installed at both ends of the first lifting beam 513, and the sliders II are installed on the first frame 500 via vertical slide rails II. The middle part of the first lifting beam 513 is connected to the action end of the stamping lifting mechanism 514, and the stamping lifting mechanism 514 is fixed on the first frame 500. The stamping lifting mechanism 514 can drive the first lifting beam 513 to move up and down.

[0114] The steel bar stamping mechanism is provided with a stamping groove 515 at the two bending sections 201 at both ends of the transverse steel bar, respectively. The two stamping grooves 515 are installed on the first lifting beam 513 so as to be horizontally movable via a horizontal transverse movement mechanism. In this example, the horizontal transverse movement mechanism includes a transverse slide rail installed on the first lifting beam 513, and the transverse slide rail is connected to the stamping groove 515 via a transverse slider and a connecting plate. A transverse movement driving mechanism is provided between the two stamping grooves 515, and the transverse movement driving mechanism is fixed on the first lifting beam 513. The action end of the transverse movement driving mechanism is connected to the connecting plate, and the transverse movement driving mechanism can drive the stamping groove 515 to move horizontally along the transverse slide rail via the connecting plate.

[0115] A stamping die 516 is fixed at one end of the groove wall of the stamping groove 515, and a stamping punch 517 is installed at the other end of the stamping groove 515. The position of the stamping punch 517 corresponds to the stamping die 516. The stamping punch 517 is connected to the action end of the stamping drive mechanism 518, and the stamping drive mechanism 518 is fixedly connected to the stamping groove 515. The stamping drive mechanism 518 can drive the stamping punch 517 to move toward or away from the corresponding stamping die 516.

[0116] The steel mesh 200 to be bent enters the bending device longitudinally and is placed on the working platform 501 of the first bending station;

[0117] After the transverse steel bar to be bent is moved to the corresponding position on the working platform 501, the steel bar pre-pressing mechanism is activated to press the transverse steel bar to be bent through the pre-pressing plate 519, so that the transverse steel bar is positioned at the specified position;

[0118] The clamping mechanism moves the upper bending die fixing plate 511 downward to clamp the transverse steel bars at the designated position on the lower working platform 501. The upper bending die fixing plate 511 clamps the middle section of the transverse steel bars, and the uncompressed sections at both ends of the transverse steel bars are the subsequent bending sections 201.

[0119] The lifting drive mechanism 505 drives the lifting slide 502 to move upward, and the lifting slide 502 drives the lifting arm 503 to move upward. Since the middle part of the lifting arm 503 is connected to the connecting rod seat 506 via the connecting rod 507, the lifting arm 503 gradually rotates around the lower end rotation axis 525 during the upward movement of the lifting arm 503, and the upper end of the lifting arm 503 gradually tilts toward the connecting rod seat 506 side and the tilt angle gradually increases;

[0120] During the upward movement of the lifting arm 503, the V-groove roller 704 at the upper end thereof contacts the bending section 201 of the transverse steel bar to bend the bending section 201, and the bending angle of the bending section 201 gradually increases as the inclination angle of the lifting arm 503 increases;

[0121] After the lifting drive mechanism 505 drives the lifting slide 502 to move upward to the specified position, it drives the lifting slide 502 to move downward, and the lifting arm 503 gradually returns to its original position;

[0122] In order to avoid interference with subsequent stamping operations, after the jacking mechanism is reset, the clamping mechanism is activated to drive the bending upper die fixing plate 511 to move upward;

[0123] The bending section 201 is bent to a vertical state, and substantially forms an angle of 90° with the plane where the steel mesh 200 is located;

[0124] The steel mesh continues to move forward and enters the workbench of the second bending station. At this time, if a single steel mesh needs to be processed, it enters the steel drill socket bending and forming mechanism, and the two bending components bend the bending section; if the steel mesh required by the steel mesh cage needs to be processed, the height of the steel bar stamping mechanism is adjusted to allow the steel mesh to enter the steel bar stamping mechanism. After the transverse steel bar reaches the predetermined position, the pressure strip descends to press the transverse steel bar. The structure of the pressure strip can refer to the bending upper mold fixing plate 511. The steel bar stamping mechanism is activated to make the bending sections 201 at both ends of the transverse steel bar on the working platform 501 located in the stamping groove 515;

[0125] The stamping drive mechanism 518 is activated to drive the stamping punch 517 to move toward the stamping die 516 , thereby stamping a bent portion on the bending section 201 between the stamping punch 517 and the stamping die 516 .

[0126] The wire feeding device is provided with a steel bar straightening device for straightening the steel bars. Generally, the steel bars are rolled down and replaced for straightening. The steel bar straightening device includes a frame 1 and a straightening mechanism 3 installed on the top of the frame 1. The number of the straightening mechanisms 3 is determined according to the application scenario. In this embodiment, two groups of straightening mechanisms 3 are arranged side by side on the frame 1.

[0127] like Fig.15 , Fig.17 , Fig.18 As shown, the straightening mechanism 3 includes a plurality of straightening cylinders 32 arranged side by side. The number of the straightening cylinders 32 is determined according to the application scenario. In this embodiment, the straightening mechanism 3 is provided with four horizontal straightening cylinders 32, which are arranged in parallel with each other at a certain distance. Both ends of the straightening cylinders 32 are supported by bearing seats 35. Each straightening cylinder 32 is connected to a driving mechanism and realizes circumferential rotation under the drive of the driving mechanism. Specifically, as Figure 4As shown, the driving mechanism includes a straightening motor 5, a plurality of transmission gears 37 and a driving gear 313. The transmission gears 37 are installed in a housing 34 and mesh with each other directly or through an intermediate gear. When directly meshed, the two straightening cylinders 32 rotate in opposite directions, and when meshed through an intermediate gear, they rotate in the same direction. These transmission gears 37 are fixed one-to-one on the outer wall of the straightening cylinder 32. The driving gear 313 is fixed on the output shaft of the straightening motor 5 and meshes with one of the transmission gears 37. When the driving gear 313 rotates, the remaining transmission gears 37 also rotate, thereby driving the corresponding straightening cylinder 32 to rotate.

[0128] In this embodiment, Fig.15 , Fig.16 , Fig.18 as well as Fig.19 As shown, each straightening cylinder 32 is provided with a group of radial threaded through holes 310, and these threaded through holes 310 are arranged at a certain interval in the length direction of the straightening cylinder 32, and the intervals of the threaded through holes 310 can be the same or different. Obviously, the threaded through holes 310 intersect with the inner hole of the straightening cylinder 32. The straightening cylinder 32 is also provided with a plurality of auxiliary holes 36, and the auxiliary holes 36 are staggered with the threaded through holes 310. As one of the staggered arrangement modes, the auxiliary holes 36 and the threaded through holes 310 are arranged at intervals from each other.

[0129] like Fig.19 As shown, a straightening block 38 is installed in the threaded through hole 310, and the two ends of the straightening block 38 are pressed by the top screw 311 screwed into the threaded through hole 310. A straightening through hole 39 is provided in the middle of the straightening block 38. The straightening through hole 39 is coaxial with the straightening cylinder 32, and the aperture of the straightening through hole 39 is adapted to the outer diameter of the steel bar. When the steel bar passes through the straightening cylinder 32, a tool such as a screwdriver can be inserted into the auxiliary hole 36 to apply force to the head of the steel bar so that it enters the straightening through hole 39 of the straightening block 38. In addition, the auxiliary hole 36 can also be used for heat dissipation and chip removal when the steel bar is straightened. The straightening block 38 is square, and the threaded through hole 310 is adapted to the straightening block 38. The inner wall around the threaded through hole 310 is provided with an internal thread 312 adapted to the top screw 311. The axis of the threaded through hole 310 is perpendicular to the axis of the straightening cylinder 32 . The threaded through holes 310 may be staggered at a certain angle, or the axes of all the threaded through holes 310 may be on the same plane.

[0130] like Fig.16 As shown, the front end of the straightening mechanism 3 is provided with a plurality of cone sleeves 31 for guiding the steel bars, and the cone sleeves 31 correspond to the straightening cylinders 32 one by one and are coaxial. The rear end of the straightening mechanism 3 is provided with a traction mechanism corresponding to the straightening mechanism 3, and the traction mechanism includes a plurality of pairs of traction wheels, a traction motor 2, a rotating shaft 6 swing frame 9 and a cylinder 7. Figure 1 , Figure 3As shown, the rotating shaft 6 is driven by the traction motor 2, each pair of traction wheels corresponds to a straightening cylinder 32, and the circumferential outer wall of the traction wheel and the pressure wheel 10 of each pair of traction wheels is provided with a groove. When the pressure wheel 10 is pressed against the driving wheel 13, the gap formed by the groove between the two wheels serves as a passage for the steel bars. A guide tube 33 is provided between the outlet of the straightening cylinder 32 and the driving wheel 13 of the traction mechanism.

[0131] In the traction wheel, the driving wheel 13 is fixed on the rotating shaft 6, the pressure wheel 10 is rotatably mounted on the swing frame 9, the cylinder 7 is mounted on the gantry 12 through the bracket 8, the gantry 12 is mounted on the frame 1, one end of the swing frame 9 is hinged to the frame 1 through the hinge shaft 11, and the other end is cantilevered and hinged to the top rod of the cylinder 7. When the top rod of the cylinder 7 moves, the pressure wheel 10 presses the traction wheel or leaves the traction wheel. The hinge shaft 11 is mounted on the gantry 12. Generally, each swing frame 9 shares the hinge shaft 11, and the other end of each swing frame 9 is connected to a cylinder 7 respectively. A compressed air tank 4 is installed on the gantry 12, and the tank 4 is connected to the cylinder 7 to supply air to it.

[0132] During operation, the steel bar passes through the cone sleeve 31 and then into the straightening cylinder 32. After passing through the straightening inner holes of each straightening block 38, the steel bar comes out from the outlet of the straightening cylinder 32 and passes through the guide tube 33 to reach the groove of the driving wheel 13. The push rod of the cylinder 7 is pushed out to drive the swing frame 9 to swing down so that the pressure wheel 10 presses the steel bar against the driving wheel 13. As the traction motor 2 rotates, the steel bar is continuously pulled forward. During the movement, the straightening block 38 rotates with the straightening cylinder 32, and the straightening through hole 39 of the straightening cylinder 32 applies force to the bent part of the steel bar to straighten the bent steel bar.

[0133] The working principle of the steel bar straightening device to straighten the bent steel bars is:

[0134] The push rod of the cylinder 7 is pushed out, and the pressure wheel 10 of the traction mechanism swings down, clamping the steel bar together with the driving wheel 13. As the traction motor 2 drives the driving wheel 13 to rotate, the traction steel bar continuously enters the straightening cylinder 32;

[0135] The straightening motor 5 rotates with the driving gear 313 to make the straightening cylinder 32 rotate circumferentially, and pressure is applied to the curved part of the traction steel bar through the straightening through holes 39 in the plurality of straightening blocks 38 to achieve straightening of the steel bar.

[0136] After the steel bars are unwound, they are straightened by the straightening device. Multiple longitudinal steel bars are continuously advanced, and the transverse steel bars are sent to the longitudinal steel bars at a certain interval, and then welded into a mesh. The bent sections are bent on the bending device. If a single mesh is used, it is directly bent into a steel bar socket by the bending forming mechanism. If a steel mesh cage is required, the bent part is processed by the steel bar stamping mechanism. When closing, the bent sections of the two steel meshes are welded to form a mesh cage, and the bent parts of the two bent sections are spliced ​​to form a steel bar socket.

[0137] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A steel mesh cage processing line, comprising a wire feeding device for conveying longitudinal steel bars and transverse steel bars, a welding device for welding the longitudinal steel bars and transverse steel bars into a steel mesh, a bending device for bending the bending section reserved for the transverse steel bars, a cutting device for cutting the steel mesh, and a closing device for closing two steel meshes to form a steel mesh cage, characterized in that: The bending device comprises: A first bending station has at least one steel bar bending mechanism arranged on a first frame (500) and is used to bend the steel bars to be bent on both sides of the steel bar mesh (200) to form a vertical bending section (201); The second bending station has at least one steel bar punching mechanism arranged on the second frame (400) and is used for punching the vertical bending section (201) to form a bending portion.

2. The processing line of the steel mesh and steel cage according to claim 1, characterized in that: The second frame (400) is also provided with at least one bending and forming mechanism for directly bending the bending section to form a steel drill insertion hole.

3. The processing line of the steel mesh and steel cage according to claim 1, characterized in that: At least one of the first frame (500) and the second frame (400) is slidably mounted on the base (300) and can slide longitudinally on the base (300) under the action of a driving member.

4. The processing line of the steel mesh and steel cage according to claim 1, characterized in that: The steel bar bending mechanism comprises: A working platform (501) for placing a steel mesh (200); A clamping mechanism, located above the working platform (501), used to clamp a portion of the steel bars to be bent of the steel mesh (200) on the working platform (501) below; A lifting mechanism, located below the working platform (501), is used to lift the portion of the steel bars to be bent on the working platform (501) that is not pressed by the pressing mechanism, thereby cooperating with the pressing mechanism to bend the steel bars to be bent on the working platform (501) to form a vertical bending section (201); The lifting mechanism comprises a lifting slideway (502) which is arranged vertically and can only move vertically, a lifting arm (503) is arranged in the upper part of the lifting slideway (502), the lower end of the lifting arm (503) is rotatably connected to the lifting slideway (502) via a rotating shaft (525), and a V-groove roller for contacting the steel bar to be bent is arranged at the upper end of the lifting arm (503); The lifting slide (502) is connected to a lifting driving mechanism (505) capable of driving the lifting slide (502) to move up and down, and the lifting arm (503) is connected to a bending angle adjustment mechanism capable of driving the lifting arm (503) to rotate around its lower end rotation axis (525) to a certain angle when the lifting arm (503) moves upward along with the lifting slide (502).

5. The processing line of the steel mesh and steel cage according to claim 4 is characterized in that: The bending angle adjustment mechanism comprises a connecting rod seat (506), the connecting rod seat (506) is connected to one end of a connecting rod (507) via a rotating shaft (525), and the other end of the connecting rod (507) is connected to the middle part of the lifting arm (503) via the rotating shaft (525); The connecting rod seat (506) is installed below the working platform (501) via a vertical position adjustment mechanism to adjust the vertical position of the connecting rod seat (506).

6. The processing line of the steel mesh and steel cage according to claim 5 is characterized in that: The vertical position adjustment mechanism comprises a guide rod (508), a fixing seat (509) and a bushing (510), wherein the upper end of the guide rod (508) is provided with an external thread, the fixing seat (509) is fixed to the lower end of the working platform (501) and a screw hole matching the external thread on the guide rod (508) is formed on the fixing seat (509), and the guide rod (508) is connected to the connecting rod seat (506) via the bushing (510).

7. The processing line of the steel mesh and steel cage according to claim 4 is characterized in that: The clamping mechanism comprises a bending upper die fixing plate (511) for contacting and clamping the steel bar to be bent, and a clamping driving mechanism (512) capable of driving the bending upper die fixing plate (511) to move up and down.

8. The processing line of the steel mesh and steel cage according to claim 4 is characterized in that: It also includes a steel bar pre-pressing mechanism, which is installed on the first frame (500) and is used to press and pre-press the steel bar to be bent before the pressing mechanism presses the steel bar to be bent and places the steel bar in a specified position.

9. The processing line of the steel mesh and steel cage according to claim 8, characterized in that: The steel bar preloading mechanism comprises a preloading plate (519) and a preloading driving mechanism (520) capable of driving the preloading plate (519) to move up and down, wherein a guide groove adapted to the steel bar is formed on the lower end surface of the preloading plate (519).

10. The processing line of the steel mesh and steel cage according to claim 9, characterized in that: The pre-pressing plate (519) is located below the upper bending die fixing plate (511) on the clamping mechanism, and a groove matching the pre-pressing plate (519) is formed on the lower side of the upper bending die fixing plate (511).

11. The processing line of the steel mesh and steel cage according to claim 1, characterized in that: The steel bar punching mechanism is installed on the first lifting beam and is used to punch the vertical bending section (201) after being bent by the steel bar bending mechanism. The first lifting beam is installed on the second frame (400) in a liftable manner.

12. The processing line of the steel mesh and steel cage according to claim 11, characterized in that: The steel bar punching mechanism comprises: A punching groove (515) is installed on the first lifting beam so as to be horizontally movable via a horizontal transverse movement mechanism (523); A stamping die (516) is fixed on a side wall of the stamping groove (515); A punching punch (517) is installed on the other side groove wall of the punching groove (515) and is used in the same position as the punching die (516); The stamping drive mechanism (518) is fixed on the stamping groove (515), and its action end is connected to the stamping punch (517), and can drive the stamping punch (517) to move toward the stamping die (516).

13. The processing line of steel mesh and steel cage according to claim 1, characterized in that: A workbench (113) for supporting the steel mesh (200) is provided on the second frame (400), and a liftable pressure strip (114) for pressing the steel mesh (200) is provided above the workbench (113).

14. The processing line of the steel mesh and steel cage according to claim 2, characterized in that: The bending and forming mechanism comprises a second lifting beam (100) and two bending assemblies (101), wherein the bending assemblies (101) comprise a sliding seat (105) and a movable pressing die (106) and a movable backing die (111) arranged on the sliding seat (105), the sliding seats (105) of the two bending assemblies (101) are both slidably matched on the second lifting beam (100), a travel channel for the steel mesh (200) is provided between the sliding seats (105), and the sliding seats (105) can be relatively close to or separated under the action of a driving member; The movable support mold (111) can slide in the transverse direction of the steel mesh (200) under the action of the driving member, and the movable pressing mold (106) can slide in the longitudinal direction of the steel mesh (200) under the action of the driving member, so that the vertical bending section (201) of the steel mesh (200) is pressed against the movable support mold (111), so that the bending section (201) follows the forming surface of the movable support mold (111) to bend to form a steel bar insertion hole.

15. The processing line of the steel mesh and steel cage according to claim 14, characterized in that: The molding surface of the movable master mold (111) comprises a primary bending molding surface (103) and a secondary bending molding surface (104), The movable pressing die (106) is provided with a primary pressing opening (109) corresponding to the primary bending forming surface (103), and a secondary pressing opening (110) corresponding to the secondary bending forming surface (104); The bending section (201) is first pressed onto the primary bending molding surface (103) by the primary molding port (109) for bending, and then is pressed onto the secondary bending molding surface (104) by the secondary molding port (110) for bending.

16. The processing line of the steel mesh and steel cage according to claim 14, characterized in that: The movable pressing die (106) is provided with a spring rod (108) which is telescopic in the longitudinal direction. When the movable pressing die (106) moves toward the movable backing die (111), the spring rod (108) pre-presses the bending section (201) onto the movable backing die (111).

17. The processing line of the steel mesh and steel cage according to claim 14, characterized in that: The sliding seat (105) is provided with a receiving groove (102) for receiving the longitudinal steel bars.

18. The processing line of the steel mesh and steel cage according to claim 14, characterized in that: The bending and forming mechanism is installed on the second frame (400) in a liftable manner via a second lifting beam (100).

19. The processing line of steel mesh and steel cage according to claim 1, characterized in that: The wire feeding device is provided with a steel bar straightening device, comprising a frame (1) and at least one group of straightening mechanisms (3) mounted on the frame (1), the straightening mechanisms (3) comprising a plurality of straightening cylinders (32) arranged side by side, each straightening cylinder (32) being connected to a driving mechanism and realizing circumferential rotation under the drive of the driving mechanism, each straightening cylinder (32) being provided with a group of radial threaded through holes (310), a certain axial spacing being maintained between the threaded through holes (310), a straightening block (38) being installed in the threaded through holes (310), both ends of the straightening block (38) being pressed by top screws (311) screwed into the threaded through holes (310), a straightening through hole (39) being provided in the middle of the straightening block (38), the straightening through hole (39) being coaxial with the straightening cylinder (32), and the hole diameter of the straightening through hole (39) being adapted to the outer diameter of the steel bar.

20. The processing line of the steel mesh and steel cage according to claim 19, characterized in that: The driving mechanism comprises a straightening motor (5), a plurality of transmission gears (37) and a driving gear (313); the transmission gears (37) are connected to the straightening cylinder (32) one by one, the transmission gears (37) are meshed with each other directly or through intermediate gears, and the driving gear (313) is fixed on the output shaft of the straightening motor (5) and meshed with one of the transmission gears (37).

21. The processing line of the steel mesh and steel cage according to claim 19, characterized in that: The straightening cylinder (32) is provided with a plurality of auxiliary holes (36), and the auxiliary holes (36) and the threaded through holes (310) are arranged in a staggered manner.

22. The processing line of the steel mesh and steel cage according to claim 19, characterized in that: The straightening block (38) is square in shape, the threaded through hole (310) is adapted to the straightening block (38), and inner walls around the threaded through hole (310) are provided with internal threads (312) adapted to the top screw (311).

23. The processing line of the steel mesh and steel cage according to claim 19, characterized in that: The axis of the threaded through hole (310) is perpendicular to the axis of the straightening cylinder (32), and the axes of all the threaded through holes (310) are located on the same plane.

24. The processing line of the steel mesh and steel cage according to any one of claims 19 to 23, characterized in that: The front end of the straightening mechanism (3) is provided with a plurality of cone sleeves (31) for guiding the steel bars, and the cone sleeves (31) correspond to the straightening cylinders (32) one by one and are coaxial.

25. The processing line of the steel mesh and steel cage according to any one of claims 19 to 23, characterized in that: The rear end of the straightening mechanism (3) is provided with at least one traction mechanism, which comprises a plurality of pairs of traction wheels, a traction motor (2), a rotating shaft (6), a swing frame (9) and a cylinder (7); the rotating shaft (6) is driven by the traction motor (2); each pair of traction wheels corresponds to a straightening cylinder (32); a passage for steel bars is provided between the driving wheel (13) and the pressure wheel (10) of each pair of traction wheels; the driving wheel (13) is fixed on the rotating shaft (6); the pressure wheel (10) is rotatably mounted on the swing frame (9); one end of the swing frame (9) is hinged to the frame (1) through a hinge shaft (11); the other end is cantilevered and hinged to a push rod of the cylinder (7); when the push rod of the cylinder (7) moves, the pressure wheel (10) presses the traction wheel or leaves the traction wheel.

26. The processing line of the steel mesh and steel cage according to claim 25, characterized in that: The circumferential outer walls of the traction wheel and the pressure wheel (10) are both provided with grooves. When the pressure wheel (10) is pressed against the driving wheel (13), the gap formed by the grooves between the two wheels serves as a passage for the steel bars.

27. The processing line of the steel mesh and steel cage according to claim 25, characterized in that: A guide tube (33) is provided between the outlet of the straightening cylinder (32) and the driving wheel (13) of the traction mechanism.

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