A multi-station device for producing prestressed positioning mesh for welded box beams

Abstract

The present invention discloses a multi-station device for producing prestressed positioning mesh for welding box beams, which relates to the technical field of steel mesh production, including a straightening machine, a feeding conveying mechanism, a long rib conveying mechanism, a short rib conveying mechanism, an assembly conveying mechanism, a bending mechanism, an assembly handling mechanism, a welding mechanism, and a material discharge mechanism. The steel bar raw material is straightened and cut by the straightening machine, and the feeding outlet of the straightening machine is connected with the feeding port of the feeding conveying mechanism. The long ribs and short ribs after straightening and cutting are sent to the feeding conveying mechanism and correspondingly sent to the long rib conveying mechanism and the short rib conveying mechanism. The long ribs are sent to the bending mechanism for bending or not bending. Then the long ribs and short ribs are successively passed through the assembly conveying mechanism, the assembly handling mechanism, and the welding mechanism to complete the assembly welding process, and finally the material discharge action is realized through the material discharge mechanism. The device of the present invention realizes the fully automatic small box beam welding production and improves the production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of steel mesh production, and in particular to a multi-station device for producing prestressed positioning mesh for welded box beams. Background Art

[0002] There is no production line for small box girders in the existing technical solutions. At the same time, the existing production methods are not fully automated, with low production efficiency and high costs. Therefore, it is necessary to provide a set of fully automatic small box girder production lines to realize fully automatic small box girder welding production and improve production efficiency. Summary of the invention

[0003] In view of the problems existing in the prior art, the invention provides a multi-station device for producing prestressed positioning meshes for welded box beams.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0005] A multi-station device for producing prestressed positioning mesh for welded box beams, comprising a straightening machine, a feeding conveying mechanism, a long reinforcement conveying mechanism, a short reinforcement conveying mechanism, an assembly conveying mechanism, a bending mechanism, an assembly handling mechanism, a welding mechanism, and a blanking mechanism. The steel bar raw material is straightened and cut by the straightening machine, and the feeding outlet of the straightening machine is connected with the feeding port of the feeding conveying mechanism. The long reinforcement and short reinforcement after straightening and cutting are sent to the feeding conveying mechanism and correspondingly transported to the long reinforcement conveying mechanism and the short reinforcement conveying mechanism. The transported long reinforcement is sent to the bending mechanism for bending or not bending. Then the long reinforcement and short reinforcement are assembled and welded by the assembly conveying mechanism, the assembly handling mechanism, and the welding mechanism, and finally the blanking action is realized by the blanking mechanism. Among them, a short reinforcement pushing module is provided on one side of the feeding conveying mechanism, and the short reinforcement pushing module includes a first double The first double-stage cylinder assembly and the material blocking assembly, the first double-stage cylinder assembly includes a first double-stage cylinder, a first cylinder support frame for fixing the first double-stage cylinder, and a first pushing plate installed at the end of the first double-stage cylinder; in the initial state, the first double-stage cylinder is located as a whole in the middle position of the mounting end of the first cylinder support frame, and the two cylinders in the first double-stage cylinder are extended or retracted respectively to realize the pushing of the short ribs in different directions, and the material blocking assembly includes a sensor, a material blocking plate and a material blocking driving mechanism. When the sensor detects and identifies that it is a short rib, the material blocking assembly is lowered as a whole under the activation of the material blocking driving mechanism. At this time, the material blocking plate prevents the short rib from moving forward, and then the first double-stage cylinder pushes the short rib to feed the material; when the sensor detects and identifies that it is a long rib, the material blocking assembly is raised as a whole under the activation of the material blocking driving mechanism, and the material blocking plate is raised, so that the long rib continues to be transported forward with the feeding conveying mechanism.

[0006] Based on the above technical solution, further, the feeding conveying mechanism includes a feeding bracket, on which a feeding conveying chain track and a feeding driving mechanism are arranged, and the power output end of the feeding driving mechanism is meshed with the feeding conveying chain track, and the feeding conveying chain track is driven to move along the conveying direction by starting the feeding driving mechanism. A guide groove is arranged on the feeding conveying chain track, and a blanking rack is arranged above the guide groove. The blanking rack is connected to the hydraulic cylinder at the end of the straightening machine through a connecting plate, and a cutter head is also arranged at the end of the straightening machine. The hydraulic cylinder drives the cutter head to move, and the steel bars cut by the cutter head fall into the guide groove through the blanking rack for transmission.

[0007] Based on the above technical solution, further, the short rib conveying mechanism includes a first short rib conveying line and a second short rib conveying line, and the first short rib conveying line and the second short rib conveying line are both chain plate lines composed of a plurality of chain plates arranged in sequence. The first short rib conveying line is provided with a short rib support seat for receiving the short ribs, and a short rib support seat is provided at both ends of each chain plate; the short rib support seat is provided with an installation notch matching the short rib, and the end of the short rib being conveyed is placed in the installation notch. A mechanical limit assembly is installed on both sides of the feeding entrance position of the first short rib conveying line, and the bottom of the mechanical limit assembly is installed on the feeding bracket.

[0008] Based on the above technical solution, further, the assembly conveying mechanism includes a first assembly chain and a second assembly chain, and the first assembly chain is arranged on the inner side of the first short rib conveying line, and the second assembly chain is arranged on the inner side of the second short rib conveying line. The first assembly chain is provided with two groups of identical pallet assemblies, each group of pallet assemblies is composed of a plurality of independently arranged pallets, and the pallets move on the first assembly chain.

[0009] Based on the above technical solution, further, the pallet assembly includes a motor reducer, a gear connected to the output end of the motor reducer, a pallet body, a long rib limiter and a short rib limiter, and the motor reducer, the long rib limiter and the short rib limiter are all installed on the pallet body; wherein, two long rib limiters are provided, and a short rib limiter is provided between the two long rib limiters; the gear is connected to the rack transmission on the first assembly chain.

[0010] Based on the above technical solution, further, a sliding plate is provided at the bottom of the support plate body, and the sliding plate slides with the slide rail on the first assembly chain. A buckle is provided on the long rib limiting piece, and the buckle is composed of an electric push rod and a connecting rod. One end of the electric push rod is connected to the sliding plate, and the other end is connected to the connecting rod. One end of the connecting rod is used to limit the long rib.

[0011] Based on the above technical solution, further, the assembly and handling mechanism includes a short-rib handling module, and the short-rib handling module is provided with a short-rib handling bracket and a plurality of short-rib handling claws, and the plurality of short-rib handling claws are installed on the short-rib handling bracket.

[0012] Based on the above technical solution, further, the long rib conveying mechanism includes a first long rib transfer module and a second long rib transfer module, and the first long rib transfer module and the second long rib transfer module have the same structure, and both include a first transfer line and a second transfer line arranged in sequence along the conveying direction of the long ribs in the feeding conveying mechanism.

[0013] Based on the above technical solution, further, the long rib conveying mechanism includes a long rib pushing module, and the long rib pushing module includes a second two-stage cylinder assembly, the second two-stage cylinder assembly includes a second two-stage cylinder, a second cylinder support frame for fixing the second two-stage cylinder, and a second push plate installed at the end of the second two-stage cylinder; in the initial state, the second two-stage cylinder is located as a whole in the middle position of the mounting end of the second cylinder support frame, and the two cylinders in the second two-stage cylinder are extended or retracted respectively to realize the pushing action of the long ribs in different directions.

[0014] Based on the above technical solution, further, the first transfer line includes a chain plate driving mechanism, a lifting module, a driving chain plate, a plurality of mounting seats, a plurality of first rollers, a first transfer bracket, and a first roller driving mechanism; and the first roller driving mechanism and the lifting module are both installed at the bottom of the lifting bracket, the lifting bracket is installed below the first transfer bracket, a plurality of mounting seats are arranged above the first transfer bracket, and a plurality of mounting seats are arranged at intervals, a driving chain plate or a first roller is provided between two adjacent mounting seats, and the driving chain plate and the second roller are arranged crosswise in sequence, and the chain plate driving mechanism is installed on one side of the mounting seat.

[0015] Based on the above technical scheme, further, the jacking module includes a jacking bracket, a jacking mechanism and a jacking base plate, the jacking base plate is installed above the jacking bracket, and a jacking slide rail is provided on the side of the jacking bracket, a jacking slider is slidably installed on the jacking slide rail, the jacking slider is connected to one end of the jacking connecting plate, and the other end of the jacking connecting plate is connected to the bottom surface of the jacking base plate, and a jacking mechanism is also installed on the jacking bracket, and the upper end of the jacking mechanism is connected to the bottom surface of the jacking base plate. In the non-lifting state, the upper end of the jacking bracket is non-contact connected to the jacking base plate.

[0016] Based on the above technical solution, further, the second transfer line includes a second transfer bracket, a plurality of second rollers and a second roller driving mechanism, wherein the height of the second transfer bracket is higher than the height of the first transfer bracket, a plurality of second rollers are installed above the second transfer bracket, the second roller driving mechanism is installed at the bottom of the second transfer bracket, and the power output end of the second roller driving mechanism is connected to each second roller through a chain.

[0017] Based on the above technical solution, further, the bending mechanism includes a bending bracket, a bending platform, and a positioning plate, wherein the bending platform is installed on the bending bracket, a bending drive mechanism is also installed at the bottom of the bending bracket, and the power output end of the bending drive mechanism is connected to the positioning plate.

[0018] Based on the above technical solution, further, two cylinder structures are provided at the bottom of the bending platform, and two bending movable plates and a bending fixed plate are provided above the bending platform, wherein the bending fixed plate is located between the two bending movable plates, and the two cylinder structures are respectively located at both ends of the bending platform, and the two cylinder structures are started to push the bending movable plates at both ends toward the position of the bending fixed plate in the middle of the bending platform.

[0019] Based on the above technical solution, further, the assembly and handling mechanism also includes a long rib handling module, wherein the long rib handling module includes a long rib handling support frame, a synchronous belt, a long rib handling drive mechanism and a long rib handling assembly, the long rib handling support frame is equipped with a long rib handling drive mechanism, a power output end of the long rib handling drive mechanism is connected with a synchronous assembly, the long rib handling assembly is installed on the synchronous belt, the synchronous belt is sleeved on the synchronous assembly, the long rib handling drive mechanism is started to drive the synchronous assembly to rotate, the synchronous assembly drives the synchronous belt to rotate, and the synchronous belt drives the long rib handling assembly to move.

[0020] Based on the above technical solution, further, the unloading mechanism includes an unloading and conveying module and an unloading and conveying platform, wherein the unloading and conveying module includes an unloading and conveying bracket and an unloading and conveying clamp, the unloading and conveying clamp is installed on the unloading and conveying bracket, and the product clamped by the unloading and conveying clamp is conveyed to the unloading platform.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) The device of the present invention realizes full-automatic small box girder welding production by arranging a straightening machine, a feeding conveying mechanism, a long rib conveying mechanism, a short rib conveying mechanism, an assembly conveying mechanism, a bending mechanism, an assembly handling mechanism, a welding mechanism, and a unloading mechanism, thereby improving production efficiency; and is suitable for welding steel meshes of different sizes.

[0023] (2) The present invention provides a blanking rack on the feeding conveying mechanism, which is used to limit the long or short bars conveyed on the feeding conveying chain track, thereby improving the accuracy of positioning and conveying; at the same time, a guide groove structure is also provided on the upper end surface of the feeding conveying chain track, and the spacing between the guide groove structures gradually decreases from the end close to the straightening machine to the end away from the straightening machine, that is, the inlet end spacing of the steel bars is larger than the outlet end spacing, which is convenient for the steel bars to enter on the one hand, and convenient for the steel bars to be conveyed out from the designated outlet on the other hand, so that they can be more accurately transferred to the conveying line of the next workstation.

[0024] (3) In the present invention, a mechanical limit assembly is installed on both sides of the feeding entrance position of the first short rib conveyor line, and the bottom of the mechanical limit assembly is installed on the loading bracket, and the distance between the two mechanical limit assemblies is not less than the length of the short rib. The purpose of setting the mechanical limit assembly is to facilitate the positioning of the position direction of the short rib conveyor and reduce the error of the short rib conveyor placement position. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0026] Figure 2 for Figure 1 A top view of

[0027] Figure 3 This is a partial structural schematic diagram of the present invention omitting the straightening machine, etc.;

[0028] Figure 4 This is a partial structural schematic diagram of the feeding and conveying mechanism of the present invention with the guide groove omitted;

[0029] Figure 5 It is a partial top view of the feeding and conveying mechanism;

[0030] Figure 6 It is a partial structural schematic diagram of the short rib pushing module of the present invention;

[0031] Figure 7 It is a partial structural schematic diagram of the short rib pushing module from another angle of the present invention;

[0032] Figure 8 It is a structural schematic diagram of a first dual-stage cylinder assembly of the present invention;

[0033] Fig. 9 It is a schematic structural diagram of the first assembly chain of the present invention;

[0034] Fig.10 For the present invention Fig. 9 An enlarged structural schematic diagram of the middle support plate assembly;

[0035] Fig.11 It is a schematic diagram of the first assembly chain structure of the present invention without the support plate assembly installed;

[0036] Fig.12 is a three-dimensional diagram of the support plate assembly of the present invention;

[0037] Fig.13 This is a schematic diagram of the structure of the support plate assembly without the upper end of the support plate body in the present invention;

[0038] Fig.14 For the present invention Fig.12 Side view of

[0039] Fig.15It is a structural schematic diagram of the short rib handling module of the present invention;

[0040] Fig.16 for Fig.15 Schematic diagram of part of the structure of the medium and short reinforcement transport bracket;

[0041] Fig.17 for Fig.15 Schematic diagram of the partial structure of the medium and short rib handling gripper;

[0042] Fig.18 It is a schematic diagram of the handling state of the short rib handling module in the present invention;

[0043] Fig.19 It is a side view of the short rib handling module of the present invention;

[0044] Fig. 20 It is a partial structural schematic diagram of the long rib conveying mechanism in the present invention;

[0045] Fig.21 It is a structural schematic diagram of a second two-stage cylinder assembly of the present invention;

[0046] Fig. 22 For the present invention Fig. 20 Schematic diagram of some structures;

[0047] Fig.23 For the present invention Fig. 22 The main view;

[0048] Fig.24 It is a partial structural schematic diagram of the first transfer line of the present invention;

[0049] Fig.25 for Fig.24 The main view;

[0050] Fig.26 It is a structural schematic diagram of the bending structure of the present invention when bending a steel bar;

[0051] Fig. 27 for Fig.26 Side view of

[0052] Fig.28 for Fig.26 The main view;

[0053] Fig.29 It is a schematic diagram of the position structure of the long rib handling module of the present invention;

[0054] Fig.30 This is a schematic diagram of the structure of the long rib handling module of the present invention;

[0055] Fig.31 for Fig.30 Schematic diagram of the structure of the medium and long rib handling gripper;

[0056] Fig.32 for Fig.31 A top view of

[0057] Fig.33 It is a structural schematic diagram of the welding mechanism of the present invention;

[0058] Fig.34 It is a partial structural schematic diagram of the welding mechanism;

[0059] Fig.35 It is a schematic diagram of the welding assembly structure;

[0060] Fig.36 It is a structural schematic diagram of the material unloading mechanism;

[0061] Fig.37 for Fig.36 Schematic diagram of the structure of the material handling clamp;

[0062] Fig.38 It is a structural schematic diagram of the material unloading platform of the present invention;

[0063] Figure numerals: 1, straightening machine; 2, feeding conveying mechanism; 201, feeding bracket; 202, feeding conveying chain track; 203, feeding drive mechanism; 204, blanking rack; 205, guide groove; 3, long rib conveying mechanism; 301, first long rib transfer module; 302, second long rib transfer module; 303, first transfer line; 304, second transfer line; 305, second two-stage cylinder; 306, second cylinder support frame; 307, second push plate; 4, short rib conveying mechanism; 401, first short rib conveying line; 402, second short rib conveying line; 403, short rib support seat; 404, mechanical limit assembly; 405, first Two-stage cylinder; 406, first cylinder support frame; 407, first push plate; 408, material blocking assembly; 409, material blocking plate; 410, material blocking drive mechanism; 411, chain plate drive mechanism; 412, drive chain plate; 413, mounting seat; 414; first roller; 415, first transfer bracket; 416, first roller drive mechanism; 417, lifting bracket; 418, lifting mechanism; 419, lifting bottom plate; 420, second transfer bracket; 421, second roller; 422, second roller drive mechanism; 423, short rib handling module; 424, lifting slide rail; 425, lifting slider; 426, lifting connecting plate; 5 , assembly conveying mechanism; 501, first assembly chain; 502, second assembly chain; 503, long rib limiter; 504, short rib limiter; 505, buckle; 506, electric push rod; 507, connecting rod; 508, motor reducer; 509, gear; 510, rack; 511, pallet body; 512, sliding plate; 513, slide rail; 514, laser rangefinder; 515, photoelectric switch; 516, laser sensor; 517, proximity switch induction board; 518, short rib transport bracket; 519, short rib transport clamp; 520, pallet assembly; 6, bending mechanism; 601, bending bracket; 602, bending platform; 603, positioning plate; 604, bending movable plate; 605, bending fixed plate; 606, pressing plate; 607, bending drive mechanism; 608, cylinder structure; 7, assembly and handling mechanism; 701, long-rib handling support frame; 702, synchronous belt; 703, long-rib handling drive mechanism; 704, synchronous assembly; 705, long-rib handling bracket; 706, long-rib handling clamp; 8, welding mechanism; 801, welding bracket; 802, welding assembly; 803, synchronous motor; 804, welding gun; 805, welding wire reel; 9, unloading mechanism; 901, unloading and handling bracket; 902, unloading and handling clamp; 903, unloading platform. DETAILED DESCRIPTION

[0064] The present invention is further described and illustrated below in conjunction with the accompanying drawings and specific embodiments. The technical features of each embodiment of the present invention can be combined accordingly without conflicting with each other.

[0065] In order to make the above-mentioned purpose, features and advantages of the present invention more obvious and easy to understand, the specific implementation mode of the present invention is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below. The technical features in each embodiment of the present invention can be combined accordingly without conflicting with each other.

[0066] In the description of the present invention, it is to be understood that when an element is considered to be "connected" to another element, it may be directly connected to the other element or indirectly connected, that is, there are intermediate elements. On the contrary, when an element is said to be "directly" connected to another element, there are no intermediate elements.

[0067] In the description of the present invention, it should be understood that the terms "first" and "second" are only used for the purpose of distinguishing descriptions, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features.

[0068] Example

[0069] Combination Figure 1-Figure 3As shown, the present invention provides a multi-station device for producing prestressed positioning mesh for welded box girders, which includes a straightening machine 1, a feeding and conveying mechanism 2, a long rib conveying mechanism 3, a short rib conveying mechanism 4, an assembly and conveying mechanism 5, a bending mechanism 6, an assembly and handling mechanism, a welding mechanism 8, and a feeding mechanism 9; the steel bar raw material is straightened and cut by the straightening machine 1, and is cut into the required length, and the length is set according to the actual situation. In this embodiment, according to the product of the small box girder, the steel bar length of the small box girder is classified into long bars and short bars, wherein all long bars have the same length and all short bars have the same length. It should be noted that the length of the long bars and short bars can be adjusted according to the actual product, and the straightening machine 1 is a prior art and will not be described here. The feeding outlet of the straightening machine 1 is connected to the feeding port of the feeding conveying mechanism 2. After straightening and cutting, the long and short ribs are sent to the feeding conveying mechanism 2 in a mixed state and conveyed to the next station. It should be noted that the mixed state refers to the fact that the long and short ribs can be conveyed crosswise; a batch of short ribs can be conveyed first, and then a batch of long ribs; a batch of long ribs can be conveyed first, and then a batch of long ribs; that is, there is no excessive restriction on the order and periodicity of conveying long and short ribs. The next station is the long rib conveying mechanism 3 and the short rib conveying mechanism 4, wherein the long ribs and short ribs are sorted at the outlet of the feeding conveying mechanism 2, and the sorted short ribs enter the short rib conveying mechanism 4, and the long ribs continue to be conveyed by the feeding conveying mechanism 2 until they enter the long rib conveying mechanism 3. The conveyed long ribs are sent to the bending mechanism 6 for bending or not bending, and then the long and short ribs are assembled and welded through the assembly conveying mechanism 5, the assembly handling mechanism, and the welding mechanism 8, and finally the unloading action is realized through the unloading mechanism 9.

[0070] In this embodiment, one end of the feeding conveyor mechanism 2 is connected to the feeding outlet of the straightening machine 1 at the previous station, and the other end of the feeding conveyor mechanism 2 is connected to the next station, and is used to transfer the long and short ribs cut by the straightening machine 1 to the next station. Specifically, a movable and adjustable cutter head structure is provided at the outlet of the straightening machine 1 corresponding to the feed inlet of the feeding conveyor mechanism 2. The cutter head is installed on the hydraulic cylinder through a mounting plate. The cutter head structure can be moved horizontally according to actual needs under the drive of the hydraulic cylinder at the end of the straightening machine 1 to perform cutting operations on the steel bars at different positions. The feeding conveying mechanism 2 includes a feeding bracket 201, on which a feeding conveying chain track 202 and a feeding driving mechanism 203 are provided. The power output end of the feeding driving mechanism 203 is meshed with the feeding conveying chain track 202, and the feeding conveying chain track 202 is driven to move along the conveying direction by starting the feeding driving mechanism 203, wherein the feeding driving mechanism 203 is arranged on one side of the feeding bracket 201, and the feeding conveying chain track 202 is arranged directly above the feeding bracket 201; further, a guide groove 205 is provided on the upper end surface of the feeding conveying chain track 202, and a blanking rack 204 is provided above the guide groove 205, and the blanking rack 204 is connected to the hydraulic cylinder through a connecting plate, that is, the blanking rack 204 will move synchronously with the movement of the cutter head. It should be noted that the position where the cutter head cuts is located at the entrance of the blanking rack 204. The blanking rack 204 can be composed of two steel plates, which are respectively distributed above the left and right sides of the feeding conveying chain track 202, and from top to bottom, the entrance end of the blanking rack 204 is smaller than the exit end of the blanking rack 204. The structure and position of the blanking rack 204 are set to prevent the cut steel bars from falling into the outside of the feeding conveying chain track 202, and the cut steel bars fall into the guide groove 205 through the blanking rack 204, wherein the structure of the guide groove 205 is opposite to that of the blanking rack 204, away from the feeding conveying chain track 202. The guide groove 205 of the chain feeding track 202 is the entrance, and the entrance opens from large to small in the direction close to the feeding conveying chain track 202. At the same time, the opening of the guide groove 205 decreases from large to small from the position close to the straightening machine 1 to the position far away from the straightening machine 1. The structural setting of the guide groove 205 is convenient for stably catching the steel bars dropped from the blanking rack 204 on the one hand, and can smoothly transfer the steel bars from the head to the tail along the feeding conveying chain track 202 on the other hand; it should be noted that the guide groove 205 can also be selected by two steel plates installed on both sides of the feeding conveying chain track 202. Further, the feeding drive mechanism 203 can select but is not limited to the existing conventional drive motor.

[0071] In this embodiment, the short rib conveying mechanism 4 includes two conveying lines symmetrically arranged on both sides of the conveying chain track, namely, a first short rib conveying line 401 and a second short rib conveying line 402. The first short rib conveying line 401 and the second short rib conveying line 402 both extend along the conveying direction, and the first short rib conveying line 401 and the second short rib conveying line 402 gradually move away from each other, wherein the conveying structure and conveying principle of the first short rib conveying line 401 and the second short rib conveying line 402 are completely the same, and the structure is roughly L-shaped. At the same time, the first short rib conveying line 401 and the second short rib conveying line 402 are preferably chain plate lines composed of a plurality of chain plates arranged in sequence; the conveying process of the first short rib conveying line 401 is described in detail here as an example, and the conveying process of the second short rib conveying line 402 is not repeated. The first short rib conveying line 401 is provided with a short rib support seat 403 for receiving the short ribs, and a short rib support seat 403 is provided at both ends of each chain plate, which can effectively improve the stability of short rib conveying or placement. Specifically, the short rib support seat 403 is provided with a mounting notch that matches the thickness of the short rib, and the end of the short rib being transported is placed in the mounting notch and transported along with the movement of the chain plate line. It should be noted that at least one short rib can be placed and transported on each chain plate. Figure 6 and Figure 7 As shown, a mechanical limit assembly 404 is installed on both sides of the feeding entrance position of the first short rib conveyor line 401, and the bottom of the mechanical limit assembly 404 is installed on the loading bracket 201, and the distance between the two mechanical limit assemblies 404 is not less than the length of the short rib. The purpose of setting the mechanical limit assembly 404 is to facilitate the positioning of the position direction of the short rib conveying and reduce the error of the short rib conveying placement position.

[0072] Specifically, refer to Figure 6-Figure 8 As shown, a short rib pushing module is also provided on one side of the feeding conveying mechanism 2, and the short rib pushing module is used to transport the short ribs transported from the feeding conveying mechanism 2 to the first short rib conveying line 401 and the second short rib conveying line 402, wherein the transporting method can be to realize the transport of the short ribs by grabbing, pushing or other methods. In some embodiments, one or two short rib conveying modules can be provided. When two are provided, one short rib conveying module transports the short ribs to the first short rib conveying line 401, and the other short rib conveying module transports the short ribs to the second short rib conveying line 402; when one is provided, the short rib conveying module transports the short ribs to the first short rib conveying line 401 and the second short rib conveying line 402, and it can be transported to the two conveying lines in a certain cycle or order.

[0073] In this embodiment, the short reinforcement pushing module includes a first two-stage cylinder 405 component and a material blocking component 408. The first two-stage cylinder 405 component includes a first two-stage cylinder 405 composed of two cylinders, a first cylinder support frame 406 for fixing the first two-stage cylinder 405, and a first push plate 407 installed at the end of the first two-stage cylinder 405; in the initial state, the first two-stage cylinder 405 is located as a whole in the middle position of the mounting end of the first cylinder support frame 406, and the two cylinders in the first two-stage cylinder 405 are extended or retracted respectively to realize the pushing of the short reinforcement in the left and right directions. Specifically, the first push plate 407 is an inverted U-shaped plate with its opening facing downward, and the short reinforcement transmitted from the limiting position is located in the first push plate 407. It should be noted that the opening of the first push plate 407 adapts to the end of the guide groove 205 to improve the precise effect of positioning the steel bars. The material blocking assembly 408 at least includes a sensor, a material blocking plate 409 and a material blocking driving mechanism 410. When the sensor detects and identifies a short rib, the material blocking driving mechanism 410 is activated to lower the material blocking assembly 408 as a whole. At this time, the material blocking plate 409 prevents the short rib from advancing, and then the first double-stage cylinder 405 pushes the short rib to feed. When the sensor detects and identifies a long rib, the material blocking driving mechanism 410 is activated to raise the material blocking assembly 408 as a whole, and the material blocking plate 409 is raised, so that the long rib continues to be transported forward with the feeding conveying mechanism 2. It should be noted that the material blocking driving mechanism 410 can be selected from but not limited to existing conventional drive motors.

[0074] In this embodiment, refer to Figure 9-Figure 14As shown, the assembly conveying mechanism 5 includes a first assembly chain 501 corresponding to the first short rib conveying line 401 and a second assembly chain 502 corresponding to the second short rib conveying line 402. The first assembly chain 501 and the second assembly chain 502 are arranged on the inner side of the first short rib conveying line 401 and the second short rib conveying line 402. That is, when short ribs are conveyed, the first assembly chain 501 is used to receive the short ribs from the first short rib conveying line 401, and the second assembly chain 502 is used to receive the short ribs from the second short rib conveying line 402. At the same time, when long ribs are conveyed, the first assembly chain 501 and the second assembly chain 502 are also used to receive the long ribs corresponding to the assembled short ribs, and the structures and assembly principles of the first assembly chain 501 and the second assembly chain 502 are exactly the same. The first assembly chain 501 is taken as an example for detailed description here, and the second assembly chain 502 is not described in detail. Specifically, two groups of identical pallet assemblies 520 are provided on the first assembly chain 501, and each group of pallet assemblies 520 is composed of a number of independently arranged pallets, and the number of the pallets is determined according to the number of short ribs on the small box girder product. For example, if the product includes four short ribs arranged in parallel, the number of pallets is 4. The pallet can be moved on the first assembly chain 501, and during the movement, the spacing between the several pallets on the same group of pallet assemblies 520 can be adjusted. During the process of adjusting the pallet spacing, the spacing between the short ribs can be adjusted, and the small box girders of different models and spacings can be compatible. It should be specifically explained that the pallet assembly 520 has three working positions on the first assembly chain 501 according to different working procedures, wherein one working position is used to receive the short ribs from the first short rib conveyor line 401. After receiving the short ribs, the pallet assembly 520 moves to the welding working position, and waits for the placement of the long ribs at the welding working position, and then welds and fixes the long ribs and the short ribs. After the welding and fixing are completed, the small box beam product is initially formed, and then moves to the unloading position for unloading; at this point, a group of pallet assemblies 520 finally completes a small box beam product. Specifically, the first assembly chain 501 moves by means of a transmission coordinated by a gear 509 and a rack 510, and multiple groups of movable and independent pallet assemblies 520 are provided above the first assembly chain 501.

[0075] Specifically, refer to Figure 12-14As shown, a set of support plate components 520 includes a motor reducer 508, a gear 509 connected to the output end of the motor reducer 508, a support plate body 511, a long rib limiter 503 and a short rib limiter 504, wherein the motor reducer 508 is a mechanical transmission device composed of a motor and a reducer, which converts the high-speed rotation of the motor into a low-speed and high-torque output through the reducer, and is used to drive various mechanical equipment and tools; the gear 509 is transmission-connected to the rack 510 on the first assembly chain 501, two long rib limiters 503 are provided, and a short rib limiter 504 is provided between the two long rib limiters 503, and the long rib limiter 503 is used to place the long ribs, and the short rib limiter 504 is used to place the short ribs, and since the long ribs are long, in order to ensure that the limiting of the long ribs is more stable, a buckle 505 structure is provided on the long rib limiter 503, and the buckle 505 structure plays a role in fixing the long ribs, and can also prevent shaking during the welding process of the long ribs and the short ribs. Furthermore, the buckle 505 is composed of an electric push rod 506 and a connecting rod 507, which realizes the loosening and fastening actions of the buckle 505, wherein a sliding plate 512 is provided at the bottom of the support plate body 511, and the sliding plate 512 is slidably matched with the slide rail 502 on the first assembly chain 501, and one end of the electric push rod 506 is connected to the sliding plate 512, and the other end is connected to the connecting rod 507, and one end of the connecting rod 507 is used to limit the long ribs. It should be noted that the spacing between the two long ribs can achieve the effect of adjustable spacing according to the change in the position between the long rib limiting pieces 503; further, the spacing adjustment method is: the electric push rod 506 is used for connection, and both ends can slide freely. When the electric push rod 506 is working, the limit limit on both sides is used to ensure that the stroke is evenly distributed on both sides. The bottom of each long rib limiter 503 is fixed on two separate sliding plates 512, and the sliding plates 512 are adjusted in spacing by electric push rods 506, wherein the sliding plates 512 may also be provided with a laser rangefinder 514 and a photoelectric switch 515, wherein the laser rangefinder 514 is used to monitor the adjustment spacing parameters between the two sliding plates 512, and the photoelectric switch 515 is used to detect the long ribs, and the support plate body 511 is also provided with a laser sensor 516 and a proximity switch sensing plate 517, wherein the laser sensor 516 is used for non-contact measurement of the support plate body 511 for long-distance measurement, and the proximity switch sensing plate 517 is used for sensing the distance monitoring between adjacent support plate assemblies 520; the laser rangefinder 514, the photoelectric switch 515, the laser sensor 516, and the proximity switch sensing plate 517 cooperate as a whole to achieve the effect of adjusting the spacing between the long ribs; the motor reducer 508, the long rib limiter 503, and the short rib limiter 504 are all installed on the support plate body 511.

[0076] In this embodiment, refer to Figure 15-19As shown, the assembly and handling mechanism includes a short rib handling module 423, which is used to carry the short ribs on the first short rib conveyor line 401 and the second short rib conveyor line 402 to the first assembly chain 501 and the second assembly chain 502 respectively, wherein one short rib handling module 423 can be provided, or two can be provided correspondingly according to the number of assembly chains. The short rib handling module 423 is provided with a short rib handling bracket 518 and a plurality of short rib handling clamps 519, and the short rib handling module 423 uses a gear 509 and a rack 510 to cooperate with each other to realize the handling. Preferably, the number of the short rib handling clamps 519 is consistent with the number of pallets in a group of pallet assemblies 520, so that the short ribs on a group of pallet assemblies 520 can be filled after one handling, thereby improving the handling efficiency. Furthermore, the short bar handling module 423 is installed on one side of the first assembly chain 501 and / or the second assembly chain 502, and the short bar handling clamp 519 is movably installed on the short bar handling bracket 518. For example, the short bar handling clamp 519 can be driven to move up and down by an electric cylinder or a pneumatic cylinder. After the short bar handling clamp 519 is lowered to clamp the short bar, it is raised and transported to the corresponding position of the first assembly chain 501 to realize the short bar handling action. Fig.17 As shown, four short ribs can be carried at one time and placed on the pallet assembly 520 of the first assembly chain 501 .

[0077] In this embodiment, refer to Figure 20-Figure 25As shown, the long rib conveying mechanism 3 is located on the inner side of the short rib conveying mechanism 4. Specifically, the long rib conveying mechanism 3 includes a long rib pushing module, a first long rib transfer module 301 and a second long rib transfer module 302. Since the short ribs have been transported to the first assembly chain 501 and the second assembly chain 502 during the feeding and conveying mechanism 2, and enter the welding working position to wait for welding with the long ribs, after the short ribs are transported, the long ribs continue to be transported along the feeding and conveying mechanism 2, and then enter the first long rib transfer module 301 and the second long rib transfer module 302 through the long rib pushing module, wherein the first long rib transfer module 301 and the second long rib transfer module 302 have the same structure and principle, and both the first long rib transfer module 301 and the second long rib transfer module 302 include a first transfer line 303 and a second transfer line 304; here, taking the record of the first long rib transfer module 301 as an example, it should be noted that the second long rib transfer module 302 is not recorded repeatedly. Specifically, the first transfer line 303 and the second transfer line 304 are arranged in sequence along the long ribs in the conveying direction of the loading and conveying mechanism 2, and the first transfer line 303 is provided below the end of the loading and conveying chain track 202 of the loading and conveying mechanism 2; further, the long rib pushing module includes a second two-stage cylinder 305 assembly, wherein the two second two-stage cylinder 305 assemblies are arranged on both sides of the first transfer line 303, and the second two-stage cylinder 305 assembly includes a second two-stage cylinder 305 composed of two cylinders, a second cylinder support frame 306 for fixing the second two-stage cylinder 305, and a second push plate 307 installed at the end of the second two-stage cylinder 305. It should be noted that the pushing principle of the second two-stage cylinder 305 assembly is similar to that of the first two-stage cylinder 405 assembly. In the initial state, the second two-stage cylinder 305 is located as a whole in the middle position of the mounting end of the second cylinder support frame 306. The two cylinders in the second two-stage cylinder 305 are extended or retracted respectively to realize the pushing of the long ribs in two directions. Specifically, the second push plate 307 is an inverted U-shaped plate with its opening facing downward. The long ribs transmitted for limiting the position are located in the second push plate 307. The second push plate 307 The difference from the first push plate 407 is the length. Since the length of the long rib is longer than that of the short rib, a correspondingly longer second push plate 307 is required to limit the long rib. In order to make the pushing process more stable, two second cylinder support frames 306 and two second two-stage cylinders 305 are provided. The ends of the two second two-stage cylinders 305 are connected to the same second push plate 307. The two second cylinder support frames 306 are installed on both sides of the first transfer line 303 along the transportation direction of the long rib.

[0078] In some specific embodiments, the first transfer line 303 includes a chain plate driving mechanism 411, a lifting module, a driving chain plate 412, a plurality of mounting seats 413, a plurality of first rollers 414, a first transfer bracket 415, and a first roller driving mechanism 416; the lifting module includes a lifting bracket 417, a lifting mechanism 418 and a lifting bottom plate 419. In order to save space, the first roller driving mechanism 416 and the lifting module are installed at the bottom of the lifting bracket 417, and the lifting bracket 417 is installed on the first The plurality of mounting seats 413 are arranged above the first transfer bracket 415, and the plurality of mounting seats 413 are arranged at intervals. A driving chain plate 412 or a first roller 414 is arranged between two adjacent mounting seats 413, and the driving chain plate 412 and the second roller 421 are arranged crosswise in sequence. The chain plate driving mechanism 411 is installed on one side of the mounting seat 413, and the output end of the chain plate driving mechanism 411 drives the driving chain plate 412 to play the role of a long rib for transfer transportation, wherein the driving chain plate 412 is arranged on the first roller 414. A buckle 505 structure may also be provided, and the synchronization of rolling can be ensured by a chain between adjacent first rollers 414, and the chain is connected to the output end of the first roller drive mechanism 416, and the chain is driven to move between the rollers by starting the first roller drive mechanism 416. Further, a plurality of first rollers 414 are integrated and installed on the same lifting bottom plate 419, and the first roller drive mechanism 416 is also installed below the lifting bottom plate 419. In this embodiment, the lifting bottom plate 419 is installed on the lifting bracket. 417, and a lifting rail 424 is provided on the side of the lifting bracket 417, a lifting slider 425 is slidably installed on the lifting rail 424, the lifting slider 425 is connected to one end of a lifting connecting plate 426, and the other end of the lifting connecting plate 426 is connected to the bottom surface of the lifting bottom plate 419, and a lifting mechanism 418 is also installed on the lifting bracket 417, and the upper end of the lifting mechanism 418 is connected to the bottom surface of the lifting bottom plate 419. In the non-lifting state, the upper end of the lifting bracket 417 is non-contactly connected to the lifting bottom plate 419. When the lifting action is performed, the lifting mechanism 418 is started, and the lifting bottom plate 419 is lifted by the cooperation of the lifting rail 424, the lifting slider 425 and the lifting connecting plate 426, and the first roller 414 and the first roller driving mechanism 416 installed on the lifting bottom plate 419 are lifted together. It should be noted that the chain plate driving mechanism 411 and the first roller driving mechanism 416 can be selected from but not limited to existing conventional driving motors, and the jacking mechanism 418 is also any conventional jacking device that can achieve a jacking effect, and no further elaboration is made on the corresponding existing structures.

[0079] In some specific embodiments, the second transfer line 304 includes a second transfer bracket 420, a plurality of second rollers 421 and a second roller drive mechanism 422, wherein the height of the second transfer bracket 420 is higher than the height of the first transfer bracket 415, so it is necessary to set a jacking module on the first transfer line 303 to achieve jacking, thereby achieving the effect that the long ribs can be smoothly pushed forward, and the second transfer bracket 420 also plays a transfer role to prevent excessive load. A plurality of second rollers 421 are installed above the second transfer bracket 420, and the second roller drive mechanism 422 is installed at the bottom of the second transfer bracket 420, and the power output end of the second roller drive mechanism 422 is connected to each second roller 421 through a chain, thereby ensuring the synchronization of rolling. At the same time, the second roller 421 can transport the long ribs to the next station, that is, the bending mechanism 6. It should be further explained that, according to the product characteristics of the small box girder, since a small box girder finished product includes two long bars, the first long bar transfer module 301 and the second long bar transfer module 302 both transport two parallel long bars to the bending mechanism 6 at one time.

[0080] In this embodiment, refer to Figure 26-Figure 28As shown, the bending mechanism 6 is located at the output end of the second transfer line 304, and the bending mechanism 6 includes a bending bracket 601, a bending platform 602, and a positioning plate 603, wherein the bending platform 602 is installed on the bending bracket 601. Specifically, there are two bending brackets 601, and a bending platform 602 is installed on each bending bracket 601. One bending platform 602 is used to receive the long ribs delivered from the first long rib transfer module 301, and the other bending platform 602 is used to receive the long ribs delivered from the second long rib transfer module 302. If the product needs to bend the long ribs, the bending mechanism 6 performs a bending operation on the long ribs. If it does not need to be bent, it is placed here for a short time without performing a bending operation. The two pairs of long ribs on the two bending platforms 602 can just make two finished products, and then the long ribs on the two bending platforms 602 are sent to the pallet assembly 520 on the first assembly chain 501 or the second assembly chain 502 through the long rib handling module, and a pair of long ribs are vertically stacked together with the short ribs on the pallet assembly 520. The long rib handling module performs one handling, which can meet the needs of the two products on the first assembly chain 501 or the second assembly chain 502 to complete the preliminary assembly and wait for welding and fixing. Specifically, two cylinder structures 608 are provided at the bottom of the bending platform 602, and two bending movable plates 604 and a bending fixed plate 605 are provided above the bending platform 602. The bending fixed plate 605 is located between the two bending movable plates 604, and the two cylinder structures 608 are respectively located at the two ends of the bending platform 602, which are used to push the bending movable plates 604 at both ends to the bending fixed plate 605 in the middle of the bending platform 602 to achieve the bending effect of the long ribs. It should be further explained that a bending angle is provided between each bending movable plate 604 and the bending fixed plate 605, for example, it is set to a roughly s-shaped bending shape, which is used to achieve the required bending effect. Further, a pressing plate 606 can also be installed above the bending fixed plate 605 to play the role of fixing and pressing the long ribs and improving the bending accuracy. Among them, a bending drive mechanism 607 is also installed at the bottom of the bending bracket 601, and the power output end of the bending drive mechanism 607 is connected to the positioning plate 603. The positioning plate 603 moves along the length direction of the bending drive mechanism 607, and the positioning plate 603 is located on the inner side of the bending bracket 601, and its range of motion is limited by the bending bracket 601. The purpose of setting the positioning plate 603 is to push the long ribs to the specified position according to the bending position for bending operation. It should be explained that when the bending operation is not performed, the bending drive mechanism 607 can be deactivated. It should be further explained that the bending drive mechanism 607 can be selected but not limited to the existing conventional drive motor, which will not be described in detail here.

[0081] In a specific embodiment, refer to Figure 29-Figure 32As shown, the assembly and handling mechanism also includes a long-rib handling module, which is driven by a synchronous belt 702 to achieve the handling effect of the long ribs. Specifically, the long-rib handling module is used to transport the bent or unbent long ribs on the two bending platforms 602 to the first assembly chain 501 or the second assembly chain 502 to perform corresponding welding operations with the short ribs. Specifically, the long-rib handling module includes a long-rib handling support frame 701, a synchronous belt 702, a long-rib handling drive mechanism 703 and a long-rib handling assembly. The long-rib handling support frame 701 is equipped with a long-rib handling drive mechanism 703, and the power output end of the long-rib handling drive mechanism 703 is connected to a synchronous assembly 704. The synchronous assembly 704 includes a plurality of synchronous wheels and a synchronous rod, wherein a synchronous wheel is respectively provided at both ends of a synchronous rod, wherein one synchronous wheel serves as a driving wheel, and the other synchronous wheel serves as a driven wheel. The driving wheel is in the long The rib transport driving mechanism 703 is driven to move under the power output end, and a driven wheel is respectively provided at a position away from the driving wheel and the driven wheel, that is, a synchronous wheel is respectively provided at the four corners of the long rib transport support frame 701, wherein the driving wheel is connected to a driven wheel through a synchronous belt 702, and the driven wheel set on the synchronous rod is also connected to a driven wheel through a synchronous belt 702, and the two synchronous belts 702 are arranged in parallel, and a long rib transport assembly is arranged between the two parallel belts, and the long rib transport assembly is driven to move by the movement of the synchronous belt 702. In this embodiment, the long rib transport assembly includes a long rib transport bracket 705 and a plurality of long rib transport clamps 706, and the cooperation between the long rib transport bracket 705 and the plurality of long rib transport clamps 706 is realized by a cylinder to realize the lifting action, and when the long rib transport clamps 706 descend to clamp the long ribs, they are then lifted and transported to the corresponding position of the first assembly chain 501 or the second assembly chain 502 to realize the transport action of the long ribs. As shown in the figure, four long ribs are grabbed twice, that is, two groups of long rib structures. Preferably, the long-rebar transporting jaws 706 are provided with three pairs of fixed jaws for clamping the long rebars and transporting them to the short rebars. For example, three pairs of jaws are provided according to the bending conditions, wherein, from top to bottom, they are the first pair of jaws, the second pair of jaws and the third pair of jaws. The first pair of jaws and the third pair of jaws are used to clamp the unbent long rebars, and the second pair of jaws and the third pair of jaws are used to clamp the bent long rebars.

[0082] In this embodiment, refer to Figure 33-Figure 35As shown, the welding mechanism 8 is used to move to the first assembly chain 501 or the second assembly chain 502 to weld the long ribs and the short ribs together. Specifically, the welding mechanism 8 includes a welding bracket 801 and a welding assembly 802, wherein the welding assembly 802 can preferably be provided with two groups of completely identical structures, each group of welding assemblies 802 includes a synchronous motor 803 and a welding wire reel 805, and the synchronous motor 803 in each group of welding assemblies 802 is provided with one, which is used to achieve the adjustment effect when welding at different positions, and it can be adjusted in two directions according to the model of the small box girder. The synchronous motor 803 is provided with a welding wire reel 805 that can move along the length direction of the synchronous motor 803. The welding wire reel 805 is provided with an electric push rod 506 or a cylinder, welding wire, a welding gun 804, a spring clamping structure, etc., which adjusts the spacing between multiple welding wires by pushing the cylinder according to whether they are bent. Specifically, the welding wire is installed on the welding gun 804 for welding. The electric push rod 506 / cylinder can adjust the spacing between two welding guns 804 on the same synchronous motor 803, and the spring clamping structure can prevent the steel wire from shifting. It should be noted that the welding mechanism 8 is an existing structure and will not be described in detail here. It should be noted that the initial position of the welding mechanism 8 is set between the first assembly chain 501 and the second assembly chain 502.

[0083] In this embodiment, refer to Figure 36-Figure 38 As shown, the unloading mechanism 9 is arranged at the end of the whole device, and the unloading mechanism 9 includes an unloading and transporting module and an unloading platform 903, wherein the unloading and transporting module includes an unloading and transporting bracket 901 and an unloading and transporting clamp 902, and the unloading and transporting module can also realize the transport by means of the gear 509 and the rack 510 cooperating in the transmission. Specifically, the unloading and transporting clamp 902 is installed on the unloading and transporting bracket 901, and the unloading and transporting clamp 902 can be driven by an electric cylinder or a pneumatic cylinder to perform a lifting action, and after the unloading and transporting clamp 902 descends to clamp the product, it rises and transports it to the unloading platform 903, and then the unloading operation is realized from the unloading platform 903. It should be further explained that a material unloading conveying module can be provided under the material unloading platform 903. The material unloading conveying module is composed of components such as a motor, a chain, and a synchronous wheel, which is convenient for moving the material unloading platform 903. The structure of the material unloading conveying module is the existing conventional structure. The motor drives the synchronous wheel to rotate, and the chain is covered on the synchronous wheel for transmission, and the material unloading platform 903 placed on the chain is driven to move through the chain transmission.

[0084] The working principle of the overall device is as follows: the straightening machine 1 first straightens and cuts the steel bars into short bars and long bars; then the straightening machine 1 transports the short bars to the feeding conveying mechanism 2, and the short bar conveying mechanism 4 gradually transports the transported short bars to the first short bar conveying line 401 and / or the second short bar conveying line 402; the first short bar conveying line 401 and the second short bar conveying line 402 transport the short bars respectively, and at the same time, the straightening machine 1 transports the long bars to the feeding conveying mechanism 2, and the long bar pushing module will start to push the long bars to the first long bar transfer module 301 and / or the second long bar transfer module 302; the short bar handling module 423 transports the short bars on the first short bar conveying line 401 to the first assembly chain 501, and at the same time, the short bars on the second short bar conveying line 402 are transported to the first assembly chain 501. The short ribs on the feed line 402 are moved to the second assembly chain 502 and transported to the welding work position; the long rib pushing module pushes the long ribs to the first long rib transfer module 301 and / or the second long rib transfer module 302, and then transports them backwards to the bending mechanism 6 for bending operation; several groups of pallet assemblies 520 on the first assembly chain 501 arrive at the welding work position, and the long rib transport module sends the long ribs on the two bending platforms 602 to the pallet assemblies 520 of the first assembly chain 501; at the same time, the two groups of pallet assemblies 520 on the second assembly chain 502 arrive at the welding work position, and the long rib transport module sends the long ribs on the two bending platforms 602 to the pallet assemblies 520 of the second assembly chain 502. The welding module arrives at the position above the first assembly chain 501 and starts the welding operation. The welding of the product on the first assembly chain 501 is completed, the welding module returns, and the two sets of pallet assemblies 520 on the first assembly chain 501 arrive at the unloading working position. The unloading and handling module takes away the product on the first assembly chain 501, and the pallet assemblies 520 on the first assembly chain 501 return to their original positions. At the same time, the welding module reaches the top of the second assembly chain 502 and starts welding. The welding of the product on the second assembly chain 502 is completed, the welding module returns, and the two sets of pallet assemblies 520 on the second assembly chain 502 arrive at the unloading working position. The unloading and handling module takes away the product on the second assembly chain 502, and the pallet assemblies 520 on the second assembly chain 502 return to their original positions. Repeat the above steps to realize the operation of the small box beam double station. In addition, according to the space arrangement, four stations can also be set, that is, four assembly chains are set, of which two assembly chains are set on each side to further improve work efficiency.

[0085] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions of the technical solution of the present invention by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the present invention.

Claims

1. A multi-station device for producing prestressed positioning mesh for welded box beams, characterized in that: Including straightening machine, feeding conveying mechanism, long rib conveying mechanism, short rib conveying mechanism, assembly conveying mechanism, bending mechanism, assembly handling mechanism, welding mechanism, unloading mechanism, The steel bar raw material is straightened and cut by the straightening machine. The feeding outlet of the straightening machine is connected to the feeding port of the feeding conveying mechanism. The long and short bars after straightening and cutting are sent to the feeding conveying mechanism and correspondingly to the long bar conveying mechanism and the short bar conveying mechanism. The conveyed long bars are sent to the bending mechanism for bending or not. Then the long and short bars are assembled and welded by the assembly conveying mechanism, the assembly handling mechanism and the welding mechanism, and finally the unloading action is realized by the unloading mechanism. Among them, a short rib pushing module is provided on one side of the feeding conveying mechanism, and the short rib pushing module includes a first double-stage cylinder assembly and a material blocking assembly. The first two-stage cylinder assembly includes a first two-stage cylinder, a first cylinder support frame for fixing the first two-stage cylinder, and a first push plate installed at the end of the first two-stage cylinder; in the initial state, the first two-stage cylinder is located as a whole in the middle position of the mounting end of the first cylinder support frame, and the two cylinders of the first two-stage cylinder are extended or retracted respectively to realize the pushing of the short ribs in different directions. The material blocking assembly includes a sensor, a material blocking plate and a material blocking driving mechanism. When the sensor detects and identifies that it is a short rib, the material blocking driving mechanism is activated to lower the material blocking assembly as a whole. At this time, the material blocking plate prevents the short rib from moving forward, and then the first double-stage cylinder pushes the short rib to feed the material. When the sensor detects and identifies that it is a long rib, the material blocking driving mechanism is activated to raise the material blocking assembly as a whole, and the material blocking plate rises, so that the long rib continues to be transported forward with the feeding conveying mechanism. The feeding conveying mechanism comprises a feeding bracket, on which a feeding conveying chain track and a feeding driving mechanism are arranged, and a power output end of the feeding driving mechanism is engaged with the feeding conveying chain track, and the feeding conveying chain track is driven to move along the conveying direction by starting the feeding driving mechanism; A guide groove is provided on the feeding conveyor chain track, and a blanking rack is provided above the guide groove. The blanking rack is connected to the hydraulic cylinder at the end of the straightening machine through a connecting plate, and a cutter head is also provided at the end of the straightening machine. The hydraulic cylinder drives the cutter head to move, and the steel bars cut by the cutter head fall into the guide groove through the blanking rack for transmission; Among them, the cutting position of the blade is located in the entrance of the blanking rack. The blanking rack is composed of two steel plates, which are respectively distributed above the left and right sides of the feeding conveyor chain track, and from top to bottom, the entrance end of the blanking rack is smaller than the exit end of the blanking rack; the guide groove away from the feeding conveyor chain track is the entrance, and the entrance opens from large to small toward the direction close to the feeding conveyor chain track. At the same time, the opening of the guide groove decreases from large to small from the position close to the straightening machine to the position far away from the straightening machine.

2. The multi-station device for producing prestressed positioning mesh for welded box beams according to claim 1 is characterized in that: The short rib conveying mechanism includes a first short rib conveying line and a second short rib conveying line, and the first short rib conveying line and the second short rib conveying line are both chain plate lines composed of a plurality of chain plates arranged in sequence; The first short rib conveying line is provided with a short rib support seat for receiving the short ribs, and each chain plate has a short rib support seat at both ends; the short rib support seat is provided with a mounting notch matching the short rib, and the end of the short rib being conveyed is placed in the mounting notch; A mechanical limit assembly is installed on both sides of the feeding entrance position of the first short rib conveyor line, and the bottom of the mechanical limit assembly is installed on the feeding bracket.

3. A multi-station device for producing prestressed positioning mesh for welded box beams according to claim 2, characterized in that: The assembly conveying mechanism includes a first assembly chain and a second assembly chain, and the first assembly chain is arranged on the inner side of the first short rib conveying line, and the second assembly chain is arranged on the inner side of the second short rib conveying line; the first assembly chain is provided with two groups of completely identical pallet assemblies, each group of pallet assemblies is composed of a number of independently arranged pallets, and the pallets move on the first assembly chain.

4. The multi-station device for producing prestressed positioning mesh for welded box beams according to claim 3 is characterized in that: The pallet assembly includes a motor reducer, a gear connected to the output end of the motor reducer, a pallet body, a long rib limiter and a short rib limiter, and the motor reducer, the long rib limiter and the short rib limiter are all installed on the pallet body; wherein, two long rib limiters are provided, and a short rib limiter is provided between the two long rib limiters; the gear is connected to the rack transmission on the first assembly chain.

5. The multi-station device for producing prestressed positioning mesh for welded box beams according to claim 4, characterized in that: A sliding plate is provided at the bottom of the support plate body, and the sliding plate slides with the slide rail on the first assembly chain. A buckle is provided on the long rib limiter, and the buckle is composed of an electric push rod and a connecting rod. One end of the electric push rod is connected to the sliding plate, and the other end is connected to the connecting rod. One end of the connecting rod is used to limit the long rib.

6. The multi-station device for producing prestressed positioning mesh for welded box beams according to claim 1, characterized in that: The assembly and transport mechanism comprises a short-rib transport module, and the short-rib transport module is provided with a short-rib transport bracket and a plurality of short-rib transport clamps, and the plurality of short-rib transport clamps are installed on the short-rib transport bracket.

7. The multi-station device for producing prestressed positioning mesh for welded box beams according to claim 1, characterized in that: The long rib conveying mechanism includes a first long rib transfer module and a second long rib transfer module, and the first long rib transfer module and the second long rib transfer module have the same structure, and both include a first transfer line and a second transfer line arranged in sequence along the long rib in the conveying direction of the feeding conveying mechanism.

8. The multi-station device for producing prestressed positioning mesh for welded box beams according to claim 7, characterized in that: The long-rib conveying mechanism includes a long-rib pushing module, and the long-rib pushing module includes a second two-stage cylinder assembly, the second two-stage cylinder assembly includes a second two-stage cylinder, a second cylinder support frame for fixing the second two-stage cylinder, and a second push plate installed at the end of the second two-stage cylinder; in the initial state, the second two-stage cylinder is located as a whole in the middle position of the mounting end of the second cylinder support frame, and the two cylinders in the second two-stage cylinder are extended or retracted respectively to realize the pushing action of the long ribs in different directions.

9. A multi-station device for producing prestressed positioning mesh for welded box beams according to claim 7 or 8, characterized in that: The first transfer line includes a chain plate driving mechanism, a lifting module, a driving chain plate, a plurality of mounting seats, a plurality of first rollers, a first transfer bracket, and a first roller driving mechanism; and the first roller driving mechanism and the lifting module are both installed at the bottom of the lifting bracket, the lifting bracket is installed below the first transfer bracket, a plurality of mounting seats are arranged above the first transfer bracket, and a plurality of mounting seats are arranged at intervals, a driving chain plate or a first roller is provided between two adjacent mounting seats, and the driving chain plate and the second roller are arranged crosswise in sequence, and the chain plate driving mechanism is installed on one side of the mounting seat.

10. The multi-station device for producing prestressed positioning mesh for welded box beams according to claim 9, characterized in that: The jacking module includes a jacking bracket, a jacking mechanism and a jacking base plate. The jacking base plate is installed above the jacking bracket, and a jacking slide rail is provided on the side of the jacking bracket. A jacking slider is slidably installed on the jacking slide rail. The jacking slider is connected to one end of a jacking connecting plate, and the other end of the jacking connecting plate is connected to the bottom surface of the jacking base plate. The jacking mechanism is also installed on the jacking bracket, and the upper end of the jacking mechanism is connected to the bottom surface of the jacking base plate. In the non-jacking state, the upper end of the jacking bracket is non-contact connected to the jacking base plate.

11. The multi-station device for producing prestressed positioning mesh for welded box beams according to claim 10, characterized in that: The second transfer line includes a second transfer bracket, a plurality of second rollers and a second roller driving mechanism, wherein the height of the second transfer bracket is higher than that of the first transfer bracket, the plurality of second rollers are installed above the second transfer bracket, the second roller driving mechanism is installed at the bottom of the second transfer bracket, and the power output end of the second roller driving mechanism is connected to each second roller through a chain.

12. The multi-station device for producing prestressed positioning mesh for welded box beams according to claim 1, characterized in that: The bending mechanism comprises a bending bracket, a bending platform and a positioning plate, wherein the bending platform is installed on the bending bracket, a bending drive mechanism is also installed at the bottom of the bending bracket, and a power output end of the bending drive mechanism is connected to the positioning plate.

13. The multi-station device for producing prestressed positioning mesh for welded box beams according to claim 12, characterized in that: Two cylinder structures are provided at the bottom of the bending platform, and two bending movable plates and a bending fixed plate are provided above the bending platform, wherein the bending fixed plate is located between the two bending movable plates, and the two cylinder structures are respectively located at both ends of the bending platform. By starting the two cylinder structures, the bending movable plates at both ends are pushed closer to the bending fixed plate position in the middle of the bending platform.

14. The multi-station device for producing prestressed positioning mesh for welded box beams according to claim 1, characterized in that: The assembly and handling mechanism also includes a long-rib handling module, wherein the long-rib handling module includes a long-rib handling support frame, a synchronous belt, a long-rib handling drive mechanism and a long-rib handling assembly. The long-rib handling support frame is equipped with a long-rib handling drive mechanism, a power output end of the long-rib handling drive mechanism is connected to a synchronous assembly, the long-rib handling assembly is installed on the synchronous belt, the synchronous belt is sleeved on the synchronous assembly, the long-rib handling drive mechanism is started to drive the synchronous assembly to rotate, the synchronous assembly drives the synchronous belt to rotate, and the synchronous belt drives the long-rib handling assembly to move.

15. The multi-station device for producing prestressed positioning mesh for welded box beams according to claim 1, characterized in that: The unloading mechanism includes an unloading and conveying module and an unloading platform, wherein the unloading and conveying module includes an unloading and conveying bracket and an unloading and conveying clamp, the unloading and conveying clamp is installed on the unloading and conveying bracket, and the product clamped by the unloading and conveying clamp is conveyed to the unloading platform.

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