A prefabricated beam steel mesh steel feeding mechanism and a feeding method

Abstract

The application discloses a prefabricated beam steel mesh steel feeding mechanism and a feeding method, relates to the technical field of steel mesh production, and comprises a conveying mechanism which is used for conveying horizontal steel bars, the conveying direction of the conveying mechanism is defined as the left-right direction, and the conveying mechanism conveys the horizontal steel bars from right to left; and a feeding mechanism which is used for lifting and transferring the horizontal steel bars, the feeding mechanism comprises two sliding rails which are arranged above the conveying mechanism, the sliding rails are horizontally arranged along the left-right direction, a load-bearing frame which can slide along the left-right direction is installed on the sliding rails, and a lifting structure which is vertically arranged is installed on the load-bearing frame; the application has the beneficial effects that the feeding mechanism and the grabbing mechanism are arranged, the straightness of each horizontal steel bar can be detected while lifting and feeding, it is ensured that all the horizontal steel bars sent to the steel mesh welding equipment are qualified horizontal steel bars, and the situation that the welding points of the steel mesh are unqualified due to the bending of the horizontal steel bars is greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of steel mesh production technology, and in particular to a steel mesh feeding mechanism and feeding method for precast beams. Background Technology

[0002] In railway bridge engineering, precast components such as box girders require a large amount of steel reinforcement, which is characterized by its large size, quantity, and high installation precision. In recent years, the production process of precast beam steel reinforcement cages has increasingly adopted the method of steel mesh assembly to reduce the number of ties required and improve installation accuracy.

[0003] The currently produced extra-large steel mesh has longitudinal bars with a diameter of 12mm and a length of 32m, and transverse bars with a diameter of 16mm and a length of 10m. In the production process of extra-large steel mesh, the transverse bars are first transported to a set position by a feeding mechanism, and then transported to the welding equipment of extra-large steel mesh by a robotic arm. The transverse bars are then welded onto the longitudinal bars in sequence to form the steel mesh.

[0004] To facilitate robotic arm gripping, the transverse reinforcing bars need to be lifted to a designated position. Currently, a stepped automatic rebar feeding mechanism is used, lifting the transverse reinforcing bars one by one. The advantages of the stepped automatic rebar feeding mechanism are its high degree of automation and fast feeding speed, which can meet the feeding needs of various occasions. However, the stepped automatic rebar feeding mechanism also has some problems. After the stepped automatic rebar feeding mechanism is started, the noise during the feeding and unloading process is very loud. Long-term exposure to this environment can easily damage the health of workers.

[0005] Secondly, there are two methods for supplying transverse reinforcing bars. One method involves production in other steel bar processing workshops followed by transfer to the steel mesh welding workshop, where they are then fed via a feeding mechanism. The other method involves on-site production, where the steel bar production equipment is located next to the steel mesh welding equipment. After straightening and cutting, the steel bars are formed into transverse reinforcing bars of the required size and directly fed to the feeding mechanism. However, various situations during production and transfer can lead to bending of individual transverse reinforcing bars, making it difficult to guarantee the straightness of all transverse reinforcing bars in either method. Bending of the transverse reinforcing bars may result in poor fit or insufficient contact between the transverse and longitudinal reinforcing bars during welding, as well as misalignment of the transverse reinforcing bars, posing safety hazards.

[0006] Currently, after the steel mesh is welded and formed, a visual inspection system is used to detect the weld points, rebar positions, and offsets, reducing safety hazards caused by substandard rebar straightness. Although problems can be detected by the visual inspection system after the steel mesh is welded and formed, the post-forming processing cost is relatively high, and it requires a significant amount of time from staff. Summary of the Invention

[0007] The purpose of this invention is to provide a precast beam steel mesh reinforcement feeding mechanism and feeding method in order to solve the above-mentioned problems.

[0008] The present invention achieves the above objectives through the following technical solutions: A precast beam steel mesh reinforcement supply mechanism, comprising: The conveying mechanism is used to convey horizontal ribs. The conveying direction of the conveying mechanism is defined as the left and right direction. The conveying mechanism conveys horizontal ribs from right to left. The feeding mechanism is used to lift and transfer the horizontal ribs. The feeding mechanism includes two slide rails arranged above the conveying mechanism. The slide rails are arranged horizontally in the left and right direction. A load-bearing frame that can slide in the left and right direction is installed on the slide rails. A vertically arranged lifting structure is installed on the load-bearing frame. A gripping mechanism is installed at the bottom of the lifting structure. The gripping mechanism is used to grip the transverse rib. The gripping mechanism includes a load-bearing rod arranged horizontally in the front-back direction. A pneumatic gripper is installed at the bottom of the load-bearing rod. The gripping part of the pneumatic gripper is equipped with a gripping block that cooperates with the transverse rib. A positioning roller is installed on the gripping block so that the transverse rib can rotate circumferentially after being gripped. Both the front and rear ends of the load-bearing rod are equipped with a drive structure for driving the transverse rib to rotate. A detection structure for detecting the degree of bending of the transverse rib is also installed at the bottom of the load-bearing rod. A finished product transfer mechanism is used to transfer the transverse reinforcement bars to the loading area of ​​the steel mesh welding mechanism. The finished product transfer mechanism is located on the left side of the conveying mechanism. The finished product transfer mechanism includes a transfer frame and a finished product transfer structure installed on the transfer frame. The slide rail extends above the finished product transfer mechanism. The finished product temporary storage mechanism is used to temporarily store the horizontal ribs. The finished product temporary storage mechanism is installed on the transfer frame and is located on one side of the finished product transfer structure. The defective product discharge mechanism is used to discharge unqualified horizontal ribs. The defective product discharge mechanism is installed on the transfer frame and is located on the other side of the finished product transfer structure.

[0009] As a further improvement, the conveying mechanism includes a conveyor frame, on which multiple conveyor belts are installed at intervals. A limiting block for positioning the transverse ribs is fixedly installed on the side of the conveyor frame near the finished product transfer mechanism. A material separating structure for separating the transverse ribs is also provided between the conveyor belts. The material distribution structure includes a material distribution block for adjusting the spacing of the horizontal ribs, a material distribution groove is provided on the top of the material distribution block, and a material distribution cylinder is provided at the bottom of the material distribution block for driving the material distribution block to rise and fall.

[0010] As a further improvement, the drive structure includes mounting plates slidably mounted on both ends of the load-bearing rod. The side of the mounting plate is provided with a translation cylinder fixedly mounted on the load-bearing rod. The translation cylinder is fixedly connected to the mounting plate and is used to drive the mounting plate to move in the front-back direction. Each of the two mounting plates has a locking block rotatably mounted on an adjacent side. The mounting plate is also equipped with a drive motor for driving the locking block to rotate.

[0011] As a further improvement, the card block is provided with a tapered groove that mates with the transverse rib.

[0012] As a further improvement, the detection structure includes several guide cylinders evenly distributed at the bottom of the load-bearing rod. A displacement sensor is fixedly installed inside the upper part of the guide cylinder. A sliding shaft is slidably assembled inside the lower part of the guide cylinder. The sliding shaft is also fitted with a reset spring for driving the sliding shaft to reset. A detection roller is rotatably assembled at the bottom of the sliding shaft.

[0013] As a further improvement, the finished product transfer structure includes several V-shaped rollers rotatably mounted on a transfer frame, and a transfer motor for driving the V-shaped rollers to rotate is also installed on the transfer frame. The transfer motor and the V-shaped rollers are connected by a transmission chain.

[0014] As a further improvement, the finished product temporary storage mechanism includes a mounting frame installed on a transfer frame. The mounting frame has a sliding groove, and a sliding frame is slidably assembled in the sliding groove. A rodless cylinder is provided on the side of the mounting frame for driving the sliding frame to slide left and right. A storage structure for placing cross ribs is provided inside the sliding frame. A lifting cylinder for driving the storage structure to rise and fall is also installed at the bottom of the mounting frame.

[0015] As a further improvement, the storage structure includes a V-shaped block, with a connecting rod fixedly connected to the bottom of the V-shaped block. The connecting rod passes through the sliding frame and extends to the bottom of the sliding frame. The mounting frame has a rectangular through hole that mates with the connecting rod. A tray is also fixedly connected to the bottom of the connecting rod.

[0016] A method for supplying reinforcing bars to precast beam steel mesh, employing the aforementioned precast beam steel mesh supply mechanism, includes the following steps: S1. Convey the transverse rib. The transverse rib is conveyed to the side near the limit block by the conveying mechanism, and the limit block limits the transverse rib. S2. Grab the horizontal rib. The material distribution cylinder drives the material distribution block to rise. The material distribution block lifts the horizontal rib and divides the horizontal rib into a set interval. The feeding mechanism drives the grabbing mechanism to move above the material distribution block and drives the grabbing mechanism to descend to grab the horizontal rib. S3. Detect and lift the transverse rib. The feeding mechanism will transfer the transverse rib to the top of the finished product transfer mechanism. At the same time, the translation cylinder will drive the mounting plate to move, so that the clamping block will clamp the transverse rib. Then the drive motor will drive the transverse rib to rotate, and the straightness of the transverse rib will be detected by the detection structure. After the detection is completed, the translation cylinder will be reset. If the straightness deviation of all horizontal ribs is less than the set value, then all horizontal ribs are placed in the finished product transfer mechanism and transported to the set position through the finished product transfer mechanism; if the straightness deviation of any horizontal rib is greater than the set value, then the unqualified horizontal ribs with the straightness deviation greater than the set value are placed on the defective product discharge mechanism for discharge, and the remaining qualified horizontal ribs are placed in the finished product temporary storage mechanism. When a defective horizontal rib is found again, it is placed on the defective product discharge mechanism for discharge. Then, the gripping mechanism moves above the finished product temporary storage mechanism, and the lifting cylinder drives the storage structure containing the qualified horizontal rib to rise. The gripping mechanism then grabs the qualified horizontal rib and places it on the finished product transfer mechanism.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention, by setting up a feeding mechanism and a gripping mechanism, can perform straightness detection on each horizontal bar while lifting the feeding, ensuring that all horizontal bars sent to the steel mesh welding equipment are qualified horizontal bars, and greatly reducing the situation of unqualified steel mesh welds caused by the bending of horizontal bars.

[0018] Meanwhile, the feeding mechanism of the present invention can lift and transfer 2-4 horizontal bars at a time, and the transfer efficiency is basically the same as that of the existing stepped steel bar automatic feeding mechanism. The feeding speed of the present invention can meet the needs of steel mesh welding equipment. Attached Figure Description

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

[0020] Figure 1 This is a schematic diagram of the precast beam steel mesh reinforcement feeding mechanism described in this invention.

[0021] Figure 2 yes Figure 1 Enlarged view of part A.

[0022] Figure 3 This is a top view schematic diagram of the conveying mechanism of the precast beam steel mesh steel bar supply mechanism described in this invention.

[0023] Figure 4 This is a schematic diagram of the gripping mechanism of the precast beam steel mesh feeding mechanism described in this invention.

[0024] Figure 5 This is a schematic diagram of the pneumatic gripper of the precast beam steel mesh feeding mechanism described in this invention.

[0025] Figure 6 This is a schematic diagram of the gripping block of the precast beam steel mesh feeding mechanism described in this invention.

[0026] Figure 7 This is a schematic diagram of the clamping block of the precast beam steel mesh feeding mechanism described in this invention.

[0027] Figure 8 This is a schematic diagram of the detection structure of the precast beam steel mesh reinforcement feeding mechanism described in this invention.

[0028] Figure 9 This is a schematic diagram of the finished product temporary storage mechanism of the precast beam steel mesh steel bar supply mechanism described in this invention.

[0029] The annotations in the attached figures are explained as follows: 100. Conveying mechanism; 110. Conveyor frame; 120. Conveyor belt; 130. Limit block; 140. Material distribution structure; 141. Material distribution block; 142. Material distribution cylinder; 200. Horizontal rib; 300. Gripping mechanism; 310. Supporting rod; 320. Pneumatic gripper; 330. Gripping block; 331. Positioning roller; 340. Detection structure; 341. Displacement sensor; 342. Guide cylinder; 343. Sliding shaft; 344. Return spring; 345. Detection roller; 350. Drive structure; 351. Translation cylinder; 352. Safety device. 353. Loading plate; 354. Drive motor; 400. Clamping block; 410. Feeding mechanism; 420. Slide rail; 430. Support frame; 500. Lifting structure; 510. Finished product storage mechanism; 520. Rodless cylinder; 521. Mounting frame; 522. Rectangular through hole; 530. Sliding groove; 540. Storage structure; 541. V-block; 542. Connecting rod; 543. Pallet; 550. Lifting cylinder; 600. Finished product transfer mechanism; 610. Transfer frame; 620. Finished product transfer structure; 700. Defective product discharge mechanism. Detailed Implementation

[0030] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. In addition, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0031] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection", and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this invention can be understood through the specific circumstances.

[0032] The present invention will be further described below with reference to the accompanying drawings: like Figures 1-9 As shown, the precast beam steel mesh steel bar feeding mechanism includes a conveying mechanism 100 for conveying the transverse bars 200, a gripping mechanism 300 for gripping the transverse bars 200, a feeding mechanism 400 for lifting the transverse bars 200, and a finished product transfer mechanism 600 for transferring the transverse bars 200 to the side of the steel mesh welding equipment. In addition, the finished product transfer mechanism 600 is also equipped with a defective product discharge mechanism 700 for discharging unqualified transverse bars 200 and a finished product temporary storage mechanism 500 for temporarily storing qualified transverse bars 200. like Figures 1-3 As shown, the conveying mechanism 100 is used to convey the transverse ribs 200. The conveying direction of the conveying mechanism 100 is defined as the left-right direction. The conveying mechanism 100 conveys the transverse ribs 200 from right to left. The conveying mechanism 100 includes a conveyor frame 110. Multiple conveyor belts 120 are installed on the conveyor frame 110 at intervals along the front-back direction. The intervals of the conveyor belts 120 facilitate the installation of the material distribution structure 140 described below. A limiting block 130 for positioning the transverse ribs 200 is fixedly installed on the side of the conveyor frame 110 near the finished product transfer mechanism 600. A material distribution structure 140 for separating the transverse ribs 200 is also provided between the conveyor belts 120. In this embodiment, the material distribution structure 140 includes a material distribution block 141 for adjusting the spacing of the transverse ribs 200. The top of the material distribution block 141 is provided with three material distribution slots (in this embodiment, the robot on the steel mesh welding equipment can grab three transverse ribs 200 at a time, so three transverse ribs 200 are loaded at a time during material feeding. In other embodiments, the number of transverse ribs 200 grabbed at a time can be adjusted according to the actual situation. Considering factors such as weight and stability, the number of transverse ribs 200 loaded at a time is generally no more than five). The bottom of the material distribution block 141 is provided with a material distribution cylinder 142 for driving the material distribution block 141 to rise and fall. When the material distribution block 141 rises, the partition between the material distribution slots will divide the transverse ribs 200 into a set spacing, which makes it convenient for the grabbing mechanism 300 to grab the transverse ribs 200. The surface of the limiting block 130 that contacts the horizontal rib 200 is an arc surface or a slope surface. The purpose of the arc surface or slope surface is to avoid the horizontal rib 200. When the material distribution block 141 lifts the horizontal rib 200, the horizontal rib 200 will move to the left and right sides. The arc surface or slope surface of the limiting block 130 can avoid the horizontal rib 200.

[0033] In other embodiments, an electric material distribution mechanism may also be used. For example, three independent material distribution blocks 141 may be used, each of which has only one material distribution slot. The principle of screw and nut is used, and a double-ended screw is adopted. The spacing of the horizontal ribs 200 is adjusted by adjusting the spacing of the material distribution blocks 141.

[0034] like Figure 1 As shown, the feeding mechanism 400 is used to lift and transfer the transverse reinforcing bars 200. Generally, the height of the conveying mechanism 100 is lower than the height of the finished product transfer mechanism 600. The lower height of the conveying mechanism 100 facilitates the placement of the transverse reinforcing bars 200; the higher height of the finished product transfer mechanism 600 facilitates the robot of the steel mesh welding equipment to grasp the transverse reinforcing bars 200. The feeding mechanism 400 includes two slide rails 410 set above the conveying mechanism 100. The slide rails 410 are horizontally arranged in the left and right direction. A load-bearing frame 420 that can slide in the left and right direction is installed on the slide rails 410. The movement of the load-bearing frame 420 can be driven by a walking motor, synchronous belt, or other structures. A vertically arranged lifting structure 430 is installed on the load-bearing frame 420. The lifting structure 430 can be pneumatic or hydraulic. The feeding mechanism 400 is conventional prior art, and its structure will not be described in detail here.

[0035] like Figure 4-8As shown, the gripping mechanism 300 is installed at the bottom of the lifting structure 430. The gripping mechanism 300 is used to grip the transverse rib 200. The gripping mechanism 300 includes a load-bearing rod 310 arranged horizontally in the front-back direction. A pneumatic gripper 320 is installed at the bottom of the load-bearing rod 310. The pneumatic gripper 320 is arranged in three rows, with three to five grippers in each row (the transverse rib 200 has different lengths such as 7m and 10m, and the number of grippers 320 in each row can be adjusted according to the actual situation). The gripping part of the pneumatic gripper 320 is equipped with a gripping block 330 that cooperates with the transverse rib 200. The gripping block 330 is fixed to the gripping part of the pneumatic gripper 320 by screws. The gripping block 330 is integrally formed with an arc-shaped surface to prevent the transverse rib 200 from falling off. A positioning roller 331 is installed on the gripping block 330 so that the transverse rib 200 can rotate circumferentially after being gripped. The pneumatic gripper 320 is existing technology. By installing a gripping block 330 on the pneumatic gripper 320, it is able to grip the transverse rib 200.

[0036] Both ends of the load-bearing rod 310 are equipped with a drive structure 350 for driving the horizontal rib 200 to rotate. There are three sets of drive structures 350. Each drive structure 350 includes a mounting plate 352 that is slidably mounted on both ends of the load-bearing rod 310. The side of the mounting plate 352 is provided with a translation cylinder 351 that is fixedly mounted on the load-bearing rod 310. The translation cylinder 351 is fixedly connected to the mounting plate 352 and is used to drive the mounting plate 352 to move in the front-back direction. Each adjacent side of the two mounting plates 352 is rotatably equipped with a locking block 354. The mounting plate 352 is also equipped with a drive motor 353 for driving the locking block 354 to rotate. In this embodiment, the locking block 354 and the drive motor 353 are meshed by gears.

[0037] like Figure 7 As shown, the locking block 354 has a conical groove that mates with the transverse rib 200. When the locking block 354 is contracted and clamped, the conical groove can firmly lock the transverse rib 200 inside the locking block 354.

[0038] like Figure 8As shown, a detection structure 340 for detecting the bending degree of the transverse rib 200 is also installed at the bottom of the load-bearing rod 310. The detection structure 340 includes several guide cylinders 342 evenly distributed at the bottom of the load-bearing rod 310. A displacement sensor 341 is fixedly installed at the upper part of the guide cylinder 342. A sliding shaft 343 is slidably assembled at the lower part of the guide cylinder 342. A reset spring 344 for driving the sliding shaft 343 to reset is also sleeved on the sliding shaft 343. A detection roller 345 is rotatably assembled at the bottom of the sliding shaft 343. The detection roller 345 can convert sliding friction into rolling friction. When the pneumatic gripper 320 grabs the transverse rib 200, the detection roller 345 is in contact with the transverse rib 200. If the transverse rib 200 is bent, the transverse rib 200 will squeeze the sliding shaft 343 to contract during rotation, thereby triggering the displacement sensor 341. If the displacement of the displacement sensor 341 is greater than the set value, the transverse rib 200 is unqualified.

[0039] like Figure 1 As shown, the finished product transfer mechanism 600 is used to transfer the transverse reinforcement 200 to the loading area of ​​the steel mesh welding mechanism. The finished product transfer mechanism 600 is located on the left side of the conveying mechanism 100. The finished product transfer mechanism 600 includes a transfer frame 610 and a finished product transfer structure 620 installed on the transfer frame 610. The slide rail 410 extends above the finished product transfer mechanism 600. The finished product transfer mechanism 600 extends below the robot of the steel mesh welding equipment to facilitate the robot to grab the transverse reinforcement 200.

[0040] The finished product transfer structure 620 includes several V-shaped rollers rotatably mounted on the transfer frame 610. The transfer frame 610 is also equipped with a transfer motor for driving the V-shaped rollers to rotate. The transfer motor and the V-shaped rollers are connected by a transmission chain. The finished product transfer structure 620 is prior art and will not be described in detail here.

[0041] like Figure 9 As shown, the finished product temporary storage mechanism 500 is used to temporarily store the transverse ribs 200. The finished product temporary storage mechanism 500 is installed on the transfer frame 610 and is located on one side of the finished product transfer structure 620. The finished product temporary storage mechanism 500 includes a mounting frame 520 installed on the transfer frame 610. The mounting frame 520 has a sliding groove 522. A sliding frame 530 is slidably assembled in the sliding groove 522. A rodless cylinder 510 is provided on the side of the mounting frame 520 for driving the sliding frame 530 to slide left and right. A storage structure 540 for placing the transverse ribs 200 is provided in the sliding frame 530. There are three storage structures 540. A lifting cylinder 550 for driving the storage structure 540 to rise and fall is also installed at the bottom of the mounting frame 520.

[0042] The storage structure 540 includes a V-shaped block 541, with a connecting rod 542 fixedly connected to the bottom of the V-shaped block 541. The connecting rod 542 passes through the sliding frame 530 and extends to the bottom of the sliding frame 530. The mounting frame 520 has a rectangular through hole 521 that mates with the connecting rod 542. A tray 543 is also fixedly connected to the bottom of the connecting rod 542.

[0043] The rodless cylinder 510 can drive the sliding frame 530 to move, thereby moving the storage structure 540. When the corresponding storage structure 540 moves above the lifting cylinder 550, the lifting cylinder 550 can lift the corresponding storage structure 540, making it convenient for the gripping mechanism 300 to grip the cross rib 200.

[0044] The defective product discharge mechanism 700 is used to discharge defective horizontal ribs 200. The defective product discharge mechanism 700 is mounted on the transfer frame 610 and located on the other side of the finished product transfer structure 620. The structure of the defective product discharge mechanism 700 is basically the same as that of the finished product transfer structure 620, but since the number of defective horizontal ribs 200 is very low, only one or two rows are needed. After straightening, the defective horizontal ribs 200 can be reused.

[0045] This embodiment also provides a method for supplying reinforcing bars to precast beam steel mesh, using the aforementioned precast beam steel mesh supply mechanism, including the following steps: S1. Convey the transverse rib 200. The transverse rib 200 is conveyed to the side near the limiting block 130 by the conveying mechanism 100, and the limiting block 130 limits the transverse rib 200. S2. Grab the horizontal rib 200. The material distribution cylinder 142 drives the material distribution block 141 to rise. The material distribution block 141 lifts the horizontal rib 200 and divides the horizontal rib 200 into a set interval. The feeding mechanism 400 drives the grabbing mechanism 300 to move above the material distribution block 141 and drives the grabbing mechanism 300 to descend and grab the horizontal rib 200. S3. The transverse rib 200 is inspected and lifted. The feeding mechanism 400 transports the transverse rib 200 to the top of the finished product transfer mechanism 600. At the same time, the translation cylinder 351 drives the mounting plate 352 to move, so that the clamping block 354 clamps the transverse rib 200. Then the drive motor 353 drives the transverse rib 200 to rotate, and the straightness of the transverse rib 200 is detected by the detection structure 340. After the detection is completed, the translation cylinder 351 is reset. If the straightness deviation of all horizontal ribs 200 is less than the set value, then all horizontal ribs 200 are placed in the finished product transfer mechanism 600 and transported to the set position through the finished product transfer mechanism 600; if the straightness deviation of any horizontal rib 200 is greater than the set value, then the unqualified horizontal ribs 200 with the straightness deviation greater than the set value are placed on the defective product discharge mechanism 700 for discharge, and the remaining qualified horizontal ribs 200 are placed in the finished product temporary storage mechanism 500. When a defective transverse rib 200 is found again, it is placed on the defective product discharge mechanism 700 for discharge. Then, the gripping mechanism 300 moves above the finished product temporary storage mechanism 500, and the lifting cylinder 550 drives the storage structure 540 containing the qualified transverse rib 200 to lift. The gripping mechanism 300 grips the qualified transverse rib 200, and then places the transverse rib 200 on the gripping mechanism 300 on the finished product transfer mechanism 600.

[0046] When a defective horizontal rib 200 is found, and there is no horizontal rib 200 on the finished product temporary storage mechanism 500, the defective horizontal rib 200 is placed on the defective product discharge mechanism 700 for discharge, and the remaining qualified horizontal rib 200 is placed on the finished product temporary storage mechanism 500. Example 2

[0047] The difference between this embodiment and Embodiment 1 is that the conveying mechanism no longer has a material distribution mechanism, and a dividing groove is opened on the conveyor belt of the conveying mechanism to pre-divide the transverse ribs.

[0048] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are only illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed.

Claims

1. A precast beam steel mesh reinforcement feeding mechanism, characterized in that, include: A conveying mechanism (100) is used to convey cross ribs (200). The conveying direction of the conveying mechanism (100) is defined as the left and right direction. The conveying mechanism (100) conveys cross ribs (200) from right to left. The feeding mechanism (400) is used to lift and transfer the cross rib (200). The feeding mechanism (400) includes two slide rails (410) arranged above the conveying mechanism (100). The slide rails (410) are arranged horizontally in the left and right direction. A load-bearing frame (420) that can slide in the left and right direction is installed on the slide rails (410). A vertically arranged lifting structure (430) is installed on the load-bearing frame (420). A gripping mechanism (300) is installed at the bottom of the lifting structure (430). The gripping mechanism (300) is used to grip the transverse rib (200). The gripping mechanism (300) includes a load-bearing rod (310) arranged horizontally in the front-back direction. A pneumatic gripper (320) is installed at the bottom of the load-bearing rod (310). A gripping block (330) that cooperates with the transverse rib (200) is installed on the gripping part of the pneumatic gripper (320). A positioning roller (331) is installed on the gripping block (330) so that the transverse rib (200) can rotate in the circumferential direction after being gripped. Both ends of the load-bearing rod (310) are equipped with a drive structure (350) for driving the transverse rib (200) to rotate. A detection structure (340) for detecting the degree of bending of the transverse rib (200) is also installed at the bottom of the load-bearing rod (310). A finished product transfer mechanism (600) is used to transfer the cross bars (200) to the loading area of ​​the steel mesh welding mechanism. The finished product transfer mechanism (600) is located on the left side of the conveying mechanism (100). The finished product transfer mechanism (600) includes a transfer frame (610) and a finished product transfer structure (620) mounted on the transfer frame (610). The slide rail (410) extends above the finished product transfer mechanism (600). Finished product temporary storage mechanism (500) is used to temporarily store cross ribs (200). The finished product temporary storage mechanism (500) is installed on the transfer frame (610) and is located on one side of the finished product transfer structure (620). The defective product discharge mechanism (700) is used to discharge the defective cross ribs (200). The defective product discharge mechanism (700) is installed on the transfer frame (610) and is located on the other side of the finished product transfer structure (620). The conveying mechanism (100) includes a conveyor frame (110), on which multiple conveyor belts (120) are installed at intervals. A limiting block (130) for positioning the transverse ribs (200) is fixedly installed on the side of the conveyor frame (110) near the finished product transfer mechanism (600). A material separation structure (140) for separating the transverse ribs (200) is also provided between the conveyor belts (120). The material distribution structure (140) includes a material distribution block (141) for adjusting the spacing of the horizontal ribs (200). The top of the material distribution block (141) is provided with a material distribution groove, and the bottom of the material distribution block (141) is provided with a material distribution cylinder (142) for driving the material distribution block (141) to rise and fall. The drive structure (350) includes mounting plates (352) slidably mounted on both ends of the load-bearing rod (310). The side of the mounting plate (352) is provided with a translation cylinder (351) fixedly mounted on the load-bearing rod (310). The translation cylinder (351) is fixedly connected to the mounting plate (352) and is used to drive the mounting plate (352) to move in the front-back direction. Each of the two mounting plates (352) is rotatably mounted with a locking block (354) on an adjacent side. The mounting plate (352) is also equipped with a drive motor (353) for driving the locking block (354) to rotate.

2. The precast beam steel mesh feeding mechanism according to claim 1, characterized in that: The card block (354) has a conical groove that cooperates with the transverse rib (200).

3. The precast beam steel mesh feeding mechanism according to claim 1, characterized in that: The detection structure (340) includes several guide cylinders (342) evenly distributed at the bottom of the load-bearing rod (310). A displacement sensor (341) is fixedly installed inside the upper part of the guide cylinder (342). A sliding shaft (343) is slidably assembled inside the lower part of the guide cylinder (342). A reset spring (344) for driving the sliding shaft (343) to reset is also sleeved on the sliding shaft (343). A detection roller (345) is rotatably assembled at the bottom of the sliding shaft (343).

4. The precast beam steel mesh feeding mechanism according to claim 1, characterized in that: The finished product transfer structure (620) includes several V-shaped rollers rotatably mounted on the transfer frame (610). The transfer frame (610) is also equipped with a transfer motor for driving the V-shaped rollers to rotate. The transfer motor and the V-shaped rollers are connected by a transmission chain.

5. The precast beam steel mesh feeding mechanism according to claim 1, characterized in that: The finished product temporary storage mechanism (500) includes a mounting frame (520) installed on a transfer frame (610). The mounting frame (520) has a slide groove (522). A sliding frame (530) is slidably assembled in the slide groove (522). A rodless cylinder (510) for driving the sliding frame (530) to slide left and right is provided on the side of the mounting frame (520). A storage structure (540) for placing cross ribs (200) is provided in the sliding frame (530). A lifting cylinder (550) for driving the storage structure (540) to rise and fall is also installed at the bottom of the mounting frame (520).

6. The precast beam steel mesh feeding mechanism according to claim 5, characterized in that: The storage structure (540) includes a V-shaped block (541), and a connecting rod (542) is fixedly connected to the bottom of the V-shaped block (541). The connecting rod (542) passes through the sliding frame (530) and extends to the bottom of the sliding frame (530). The mounting frame (520) has a rectangular through hole (521) that cooperates with the connecting rod (542). A support plate (543) is also fixedly connected to the bottom of the connecting rod (542).

7. A method for supplying reinforcing bars to a precast beam steel mesh, employing the precast beam steel mesh reinforcing bar supply mechanism as described in claim 6, characterized in that, Includes the following steps: S1. Convey the transverse rib (200). The transverse rib (200) is conveyed to the side near the limiting block (130) by the conveying mechanism (100), and the limiting block (130) limits the transverse rib (200). S2. Grab the horizontal rib (200). The material distribution cylinder (142) drives the material distribution block (141) to rise. The material distribution block (141) lifts the horizontal rib (200) and divides the horizontal rib (200) into a set interval. The feeding mechanism (400) drives the gripping mechanism (300) to move above the material distribution block (141) and drives the gripping mechanism (300) to descend and grab the horizontal rib (200). S3. Detect and lift the transverse rib (200). The feeding mechanism (400) transfers the transverse rib (200) to the top of the finished product transfer mechanism (600). At the same time, the translation cylinder (351) drives the mounting plate (352) to move, so that the clamping block (354) clamps the transverse rib (200). Then, the drive motor (353) drives the transverse rib (200) to rotate, and the straightness of the transverse rib (200) is detected by the detection structure (340). After the detection is completed, the translation cylinder (351) is reset. If the straightness deviation of all horizontal ribs (200) is less than the set value, then all horizontal ribs (200) are placed in the finished product transfer mechanism (600) and the horizontal ribs (200) are transported to the set position through the finished product transfer mechanism (600); if the straightness deviation of any horizontal rib (200) is greater than the set value, then the unqualified horizontal ribs (200) with the straightness deviation greater than the set value are placed on the defective product discharge mechanism (700) for discharge, and the remaining qualified horizontal ribs (200) are placed in the finished product temporary storage mechanism (500). When a defective horizontal rib (200) appears again, the defective horizontal rib (200) is placed on the defective product discharge mechanism (700) for discharge. Then, the gripping mechanism (300) moves above the finished product temporary storage mechanism (500), and the lifting cylinder (550) drives the storage structure (540) containing the qualified horizontal rib (200) to lift. The gripping mechanism (300) grips the qualified horizontal rib (200), and then the horizontal rib (200) on the gripping mechanism (300) is placed on the finished product transfer mechanism (600).

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