Automatic feeding device with I-shaped steel paving cutting head for steel arch production line

Abstract

The invention discloses an automatic feeding device with I-shaped steel paving and end cutting functions for a steel arch production line, which comprises a bundle grabbing mechanism, a first paving and conveying mechanism, an end cutting and chamfering mechanism, a second paving and conveying mechanism and a feeding mechanism, and is characterized in that the first paving and conveying mechanism grabs I-shaped steel from an I-shaped steel bundle and conveys the I-shaped steel to the first paving and conveying mechanism; i-shaped steel is paved by the first paving and conveying mechanism, end cutting and end chamfering are performed on the I-shaped steel by the end cutting and chamfering mechanism, the I-shaped steel is conveyed to the second paving and conveying mechanism, and the I-shaped steel is conveyed to a steel arch production line by the second paving and conveying mechanism. According to the device, automatic feeding of I-shaped steel bundles can be achieved one by one, the ends of the I-shaped steel can be automatically sawn, chamfers of the ends of the I-shaped steel can be automatically sawn, welding grooves can be machined in the ends of the I-shaped steel to be welded in advance, the welding quality of I-shaped steel joints is improved, the process configuration is scientific and reasonable, and the production efficiency is improved. The production efficiency of a steel arch production line is improved, and the production cost is reduced.

Description

Technical Field

[0001] The invention relates to an automatic feeding device of a steel arch frame production line with an I-beam paving cutting head, belonging to the technical field of steel arch frame production. Background Art

[0002] Steel arch frame is a support measure that uses bent I-beams to reinforce underground projects. It can be combined with anchor rods, shotcrete and steel mesh to form a composite support arch frame. It is widely used in tunnels, subways, hydropower stations, underground caverns and other projects. At present, steel arch frame production lines have been gradually used to realize the automated production of steel arch frames.

[0003] Since the I-beams used in the production of steel arches are all bundled, the bundles of I-beams are stacked up, and they need to be manually fed to the steel arch production line layer by layer. However, the manual feeding method is labor-intensive, labor-intensive, and inefficient, and it is impossible to achieve continuous feeding of I-beams, and thus it is impossible to achieve automation and continuous production of the steel arch production line.

[0004] In addition, in the current steel arch production line, the I-beam butt welding is performed by directly butting two sections of I-beams and welding them. The I-beams are not cut and chamfered, resulting in no welding groove at the ends of the I-beams to be welded, which affects the welding quality of the I-beam joints and the welding strength at the butt joints of the I-beams. It also fails to meet the process requirements of robot welding for the butt welding of I-beams, resulting in the use of manual welding. However, manual welding is inefficient and has poor welding quality, and it is impossible to achieve automated and continuous welding of I-beams. Therefore, the existing steel arch production line still lacks a process of cutting and chamfering the ends of the I-beams to pre-process the welding grooves at the ends of the I-beams to be welded.

[0005] In summary, the I-beam loading and butt welding of steel arch frame production lines in the industry are generally carried out manually, which has low production efficiency and high production cost. It is impossible to realize the automation and continuous production of steel arch frame production lines, and thus it is impossible to realize the mass production of steel arch frames, and it is impossible to meet customers' increasing demand for higher degree of automation. Summary of the invention

[0006] In order to solve the above problems, the present invention provides an automatic feeding device for a steel arch production line with an I-beam paving and cutting head. The present invention integrates the processes of automatic feeding of I-beam bundles one by one, cutting the ends of I-beams and chamfering the ends into one, which can realize automatic feeding of I-beam bundles one by one, automatic sawing of the ends of I-beams, and automatic sawing of the ends of I-beams. The ends of I-beams to be welded can be pre-processed with welding grooves, thereby improving the welding quality of I-beam joints and ensuring the welding strength of I-beam joints. At the same time, it can meet the process requirements of robot welding when I-beams are continuously welded, with high work efficiency, providing a basis for subsequent automated and continuous welding operations of I-beams, and ensuring the quality of I-beam continuous welding. The present invention greatly improves production efficiency, reduces production costs, and has scientific and reasonable process configuration, so that the automation level of the steel arch production line is further improved, and the automation and continuous production of the steel arch production line can be realized, thereby realizing mass production of steel arches, meeting customers' increasing demand for automation.

[0007] The first object of the present invention is to provide an automatic feeding device for a steel arch production line with an I-beam paving cutter, comprising:

[0008] The bundle grabbing mechanism comprises a bundle stand for placing I-beam bundles and a movable grabbing device for grabbing the I-beams;

[0009] A first paving and conveying mechanism is arranged on one side of the bundle grabbing mechanism, and comprises a paving frame, wherein the paving frame is used to receive the I-beams grabbed by the grabbing device and pave a plurality of I-beams;

[0010] An end cutting and chamfering mechanism is arranged on one side of the first paving and conveying mechanism, and comprises a movable and rotatable cutting mechanism, wherein the cutting mechanism is configured to cut and chamfer the ends of the I-beams conveyed from the first paving and conveying mechanism by rotating at different angles;

[0011] A second paving and conveying mechanism is arranged at one side of the first paving and conveying mechanism, and is used to receive the I-beams after the ends are cut and chamfered by the end cutting and chamfering mechanism, and convey the I-beams to the steel arch production line;

[0012] The feeding mechanism is used to realize the transportation of I-beams between the first paving and conveying mechanism, the end cutting and chamfering mechanism, and the second paving and conveying mechanism.

[0013] In one embodiment of the present invention, the bundle grabbing mechanism, the first paving conveying mechanism, and the second paving conveying mechanism are arranged in sequence along the conveying direction of the I-beam, and a second clamping and positioning mechanism, a feeding mechanism, and a cutting end chamfering mechanism are provided between the second paving conveying mechanism and the first paving conveying mechanism; the grabbing device of the bundle grabbing mechanism grabs the I-beam from the I-beam bundle placed on the bundle platform and places it on the first paving conveying mechanism, and the first paving conveying mechanism paves the I-beam, and the feeding mechanism is used to transport the I-beam on the first paving conveying mechanism to the second clamping and positioning mechanism and the cutting end chamfering mechanism. The end chamfering mechanism, the second clamping and positioning mechanism is used to clamp and fix the I-beam, the end cutting and chamfering mechanism is used to cut the end of the I-beam and chamfer the end, and the feeding mechanism is also used to transport the I-beam after the end cutting and chamfering to the second paving conveying mechanism; the second paving conveying mechanism is provided with a conveyor line in front of the steel arch frame production line on the side away from the end cutting and chamfering mechanism, and the second paving conveying mechanism is connected with the conveyor line in front of the steel arch frame production line. The second paving conveying mechanism is used to transport the I-beam paved thereon to the conveyor line in front of the steel arch frame production line, and the conveyor line in front of the steel arch frame production line transports the I-beam to the steel arch frame production line.

[0014] In one embodiment of the present invention, the second clamping and positioning mechanism is located in the middle position between the second paving conveying mechanism and the first paving conveying mechanism, and the two feeding mechanisms are respectively located on both sides of the second paving conveying mechanism and the first paving conveying mechanism, and each feeding mechanism is provided with a cutting end chamfering mechanism on the side away from the second clamping and positioning mechanism; wherein the second paving conveying mechanism has the same structure as the first paving conveying mechanism.

[0015] In one embodiment of the present invention, the bale material grabbing mechanism also includes a fixed platform arranged on one side of the bale material frame, the fixed platform is connected to a movable telescopic movable frame, the telescopic movable frame is fixedly connected to a fixed seat, a lift and lift rod is connected in the fixed seat, the bottom end of the lift and lift rod is fixedly connected to a cross beam, the two sides of the bottom end of the cross beam are fixedly connected to the grabbing device, and the grabbing device is an electromagnetic magnet; the bale material frame is lower than the fixed platform; the fixed platform is fixedly connected to a first driving mechanism, the first driving mechanism is driven and connected to a gear, a first rack is arranged on the telescopic movable frame, and the first rack is meshed with the gear of the first driving mechanism; the fixed seat is fixedly connected to the end of the telescopic movable frame, the fixed seat is fixedly connected to a second driving mechanism, the second driving mechanism is driven and connected to a gear, a second rack is arranged on the lifting and lifting rod, and the second rack is meshed with the gear of the second driving mechanism.

[0016] In one embodiment of the present invention, the first paving and conveying mechanism also includes a third driving mechanism installed on the paving frame and a transmission chain connected thereto, the third driving mechanism is used to drive the transmission chain to rotate; the two transmission chains are arranged on both sides of the paving frame, and the output end of the third driving mechanism is drivingly connected to a driving sprocket, and the driving sprocket is meshed with the transmission chain; the paving frame is installed with a transmission sprocket, and the transmission sprocket is meshed with the transmission chain, and the two transmission sprockets are respectively located on both sides of the transmission chain; the interior of the paving frame is fixedly connected with a mounting seat near the driving sprocket, and a tensioning wheel is installed on the mounting seat, and the tensioning wheel abuts against the transmission chain; a limiting stop roller is installed on the upper end of one side of the paving frame; the limiting stop roller is used to limit the I-beam on the transmission chain, wherein the limiting stop roller of the first paving and conveying mechanism is installed at the upper end of the paving frame away from the bundle grabbing mechanism.

[0017] In one embodiment of the present invention, the cutting end chamfering mechanism also includes a first base and a first movable base, the first base is provided with a third rack and a first guide rail, the first movable base is movably connected to the first guide rail, the first movable base is fixedly installed with a fourth driving mechanism, the output end of the fourth driving mechanism passes through the first movable base and is connected with a gear, the gear of the fourth driving mechanism is meshed with the third rack, and the fourth driving mechanism is used to drive the gear connected thereto to rotate so that the first movable base moves along the first guide rail on the first base; the first movable base is connected with a rotatable first platform, one end of the first platform is hinged with a fifth driving mechanism, and the fifth driving mechanism is used to drive the first platform to rotate, a lifting mechanism is installed on the first platform, the lifting mechanism is connected with a cutting mechanism, and the lifting mechanism is used to drive the cutting mechanism to lift and lower, and the cutting mechanism includes a seventh driving mechanism and a saw blade connected to the seventh driving mechanism. The seventh driving mechanism is used to drive the saw blade to rotate to cut the I-beam; the lower part of the first frame is installed on the first moving seat through a slewing bearing, and the fifth driving mechanism is installed on the first moving seat, and the output end of the fifth driving mechanism is hinged to a corner of the lower end surface of the first frame; the interior of the first frame is a hollow structure and is provided with a slope, the upper end surface and the side surface of the first frame are both provided with openings, the slope connects the two openings, the saw blade is located directly above the opening of the upper end surface of the first frame, and a waste box is provided below the side opening of the first frame; the lifting mechanism includes a lifting column and an elevator installed on the lifting column, the lifting screw of the elevator is located in the lifting column, a slide groove is provided on one side of the lifting column, and second guide rails are provided on both sides, the second guide rail is slidably connected to a connecting frame, and the connecting frame passes through the slide groove and is connected to the lifting screw rod of the elevator; the seventh driving mechanism is fixedly connected to the connecting frame.

[0018] In one embodiment of the present invention, a first clamping and positioning mechanism is also installed on the first movable seat, and the first clamping and positioning mechanism includes a second frame arranged on one side of the first frame, and a sixth driving mechanism, a first fixed clamping seat, and a first movable clamping seat are installed on the second frame, the first movable clamping seat is connected to the sixth driving mechanism, the I-beam is located between the first fixed clamping seat and the first movable clamping seat, and the sixth driving mechanism is used to drive the first movable clamping seat to move so that the first movable clamping seat moves toward the first fixed clamping seat to clamp the I-beam; a rotatable first roller is also installed on the second frame, the first roller is located on one side of the first fixed clamping seat, and the I-beam is mounted on the first roller.

[0019] In one embodiment of the present invention, the second clamping and positioning mechanism includes a second clamping and positioning frame arranged between the first paving and conveying mechanism and the second paving and conveying mechanism, and the second clamping and positioning frame is equipped with an eighth driving mechanism, a second fixed clamping seat, a second movable clamping seat, and a third guide rail located between the eighth driving mechanism and the second fixed clamping seat, the second movable clamping seat is connected to the eighth driving mechanism, and the I-beam is located between the second fixed clamping seat and the second movable clamping seat, and the eighth driving mechanism is used to drive the second movable clamping seat to move along the third guide rail so that the second movable clamping seat moves toward the second fixed clamping seat to clamp the I-beam; a rotatable second roller is also installed on the second clamping and positioning frame, and two of the second rollers are located on both sides of the second fixed clamping seat, and the I-beam is mounted on the second roller.

[0020] In one embodiment of the present invention, the feeding mechanism includes a second base, a fourth guide rail is arranged on the second base, the fourth guide rail is connected to a movable second moving base, a plurality of columns are fixedly connected to the second moving base, a plurality of mounting plates are fixedly connected inside the plurality of columns, a plurality of fixing plates are fixedly connected above the plurality of columns, the fixing plate is provided with a through hole, a ninth driving mechanism is fixedly installed on the fixing plate, an output end of the ninth driving mechanism passes through the through hole of the fixing plate and is connected to a support plate, the ninth driving mechanism is used to drive the lifting and lowering of the support plate, and the support plate is used to carry an I-beam; a fourth rack is arranged on the second base, and the second moving base is provided with a fourth rack. The seat is fixedly installed with a tenth driving mechanism, the output end of the tenth driving mechanism passes through the second moving seat and is connected with a gear, the gear of the tenth driving mechanism is meshed with the fourth rack, and the tenth driving mechanism is used to drive the gear connected thereto to rotate so that the second moving seat moves along the fourth guide rail on the second base; a slider is fixedly connected to the lower side of the second moving seat, and several of the sliders are slidably connected to the fourth guide rail; a linear bearing is installed in the fixed plate, and a guide column is movably connected in the linear bearing, and the top of the guide column is fixedly connected to the support plate; limit blocks are fixedly connected to both sides of the support plate, and the limit blocks are higher than the upper end surface of the support plate.

[0021] The second object of the present invention is to provide an automatic feeding process for a steel arch production line with an I-beam paving cut head, using the automatic feeding device for a steel arch production line with an I-beam paving cut head, comprising the following steps:

[0022] S1. Bundling I-beams; placing the I-beams bundled with steel arches on the bundling platform of the bundling grabbing mechanism, and unbundling;

[0023] S2, automatically grab the I-beam; the bundle grabbing mechanism starts to work, and under the drive of the first driving mechanism, the telescopic moving frame moves, so that the lifting and lifting rod moves to the top of the first I-beam of the first layer of the I-beam bundle; under the drive of the second driving mechanism, the lifting and lifting rod descends, so that the electromagnetic magnet presses on the I-beam; the electromagnetic magnet is energized to adsorb the I-beam, and the lifting and lifting rod rises, and the telescopic moving frame drives the lifting and lifting rod and the I-beam adsorbed by the electromagnetic magnet to move toward the paving frame of the first paving conveying mechanism until the I-beam reaches above the loading position of the paving frame of the first paving conveying mechanism; the lifting and lifting rod descends, and the I-beam is placed on the paving frame of the first paving conveying mechanism; the electromagnetic magnet is de-energized to release the I-beam, the lifting and lifting rod rises, and the telescopic moving frame retreats to the top of the I-beam bundle on the bundle stand, and continues to grab the I-beams one by one layer by layer;

[0024] S3, automatic paving of I-beams; after the I-beams are grabbed and placed on the paving frame of the first paving conveying mechanism, the first paving conveying mechanism starts to work, and under the drive of the third driving mechanism, the transmission chain works to drive the I-beams to move forward a fixed distance; the subsequent I-beams are paved on the paving frame one by one in the same way, and when there are I-beams at the limit stop roller and the loading position on the paving frame, the bundle grabbing mechanism stops working, and at this time a certain number of I-beams have been paved and stored on the paving frame;

[0025] S4, the feeding mechanism automatically feeds; when the I-beam on the paving frame of the first paving conveying mechanism reaches the limit stop roller, the second moving seat of the feeding mechanism moves to the bottom of the I-beam at the limit stop roller on the paving frame, and the ninth driving mechanisms of the two feeding mechanisms work simultaneously to lift the I-beam, and under the drive of the tenth driving mechanism, the I-beam is sent to the second clamping and positioning mechanism and clamped;

[0026] S5, automatic end chamfering; the end chamfering mechanism starts to work, the first movable seat moves to the set position under the drive of the fourth driving mechanism, the fifth driving mechanism works to rotate the first platform by degrees; the first clamping and positioning mechanism of the end chamfering mechanism works to clamp the I-beam; the elevator and the seventh driving mechanism work to drive the saw blade to descend and rotate to perform chamfering and sawing on the I-beam; after the chamfering and sawing are completed, the first clamping and positioning mechanism is released, the first movable seat moves, and the fifth driving mechanism returns to its original position, so that the first platform returns to the original end tangent angle and moves to the end cutting position in parallel; the first clamping and positioning mechanism clamps the I-beam; the elevator and the seventh driving mechanism work to drive the saw blade to descend and rotate to saw the end of the I-beam; after the chamfering and end sawing of the I-beam are completed, the first clamping and positioning mechanism is released, the first movable seat returns to its initial position, and the second clamping and positioning mechanism is released;

[0027] S6, the feeding mechanism feeds automatically; the ninth driving mechanism of the feeding mechanism drives the supporting plate to rise, lifts the I-beam and separates it from the second clamping and positioning mechanism; driven by the tenth driving mechanism, the I-beam is delivered to the loading position of the second paving conveying mechanism; the ninth driving mechanism of the feeding mechanism drives the supporting plate to descend, places the I-beam on the paving frame of the second paving conveying mechanism, and the feeding mechanism returns to the paving frame of the first paving conveying mechanism to continue to transfer the next I-beam;

[0028] S7, automatic loading of I-beams; after the I-beams arrive at the paving frame of the second paving conveying mechanism, the third driving mechanism of the second paving conveying mechanism drives the transmission chain to transport the I-beams forward at an equal distance. When the front conveying line of the steel arch frame production line sends a signal of lack of material, the second paving conveying mechanism automatically transports an I-beam to the front conveying line of the steel arch frame production line; if the second paving conveying mechanism is full of I-beams, the end cutting and chamfering mechanism will stop working until the I-beams at the loading position of the second paving conveying mechanism have been removed;

[0029] S8, enter the steel arch frame production line; the conveyor line in front of the steel arch frame production line transports the I-beams to the steel arch frame production line.

[0030] The beneficial effects of the present invention are as follows:

[0031] The present invention provides an automatic loading device for paving and cutting I-beams in a steel arch frame production line, which comprises a bundle grabbing mechanism for grabbing I-beam bundles, a first spreading and conveying mechanism and a second spreading and conveying mechanism for spreading and conveying I-beam bundles, a first clamping and positioning mechanism and a second clamping and positioning mechanism for clamping and positioning the I-beams, an end cutting and chamfering mechanism for cutting and chamfering the ends of the I-beams, and a feeding mechanism for conveying the I-beams between the above-mentioned mechanisms to form a complete production line. The present invention integrates the processes of automatic feeding of I-beam bundles, cutting of I-beam ends and chamfering of ends into one through the layout and matching of the above-mentioned bundle grabbing mechanism, the first spreading and conveying mechanism, the end cutting and chamfering mechanism, the first clamping and positioning mechanism, the second clamping and positioning mechanism, the feeding mechanism and the second spreading and conveying mechanism. It can realize automatic feeding of I-beam bundles one by one, automatic sawing of I-beam ends and automatic chamfering of I-beam ends, and can pre-process welding grooves on the ends of I-beams to be welded, thereby improving the welding quality of I-beam joints and ensuring the welding strength of the I-beam joints. At the same time, it can meet the process requirements of robot welding for I-beam butt welding, has high work efficiency, provides a basis for subsequent automated and continuous welding operations of I-beams, and ensures the quality of I-beam butt welding. The present invention greatly improves production efficiency, reduces production costs, and has a scientific and reasonable process configuration, which further improves the automation level of the steel arch frame production line. It can realize the automation and continuous production of the steel arch frame production line, and then can realize the mass production of steel arch frames, meeting customers' demand for an increasingly high degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A stereoscopic diagram of an automatic loading device for a steel arch production line with an I-beam paving cutting head provided by the present invention.

[0033] Figure 2 A stereoscopic diagram from another perspective of an automatic loading device for an I-beam paving cutting head of a steel arch production line provided by the present invention.

[0034] Figure 3 A front view of an automatic feeding device for a steel arch production line with an I-beam paving cutting head provided by the present invention.

[0035] Figure 4 A three-dimensional diagram of an automatic feeding device of a steel arch frame production line with an I-beam paving cutting head provided by the present invention in a working state.

[0036] Figure 5 This is a front view of the bale grabbing mechanism and the first paving and conveying mechanism provided by the present invention.

[0037] Figure 6 A three-dimensional diagram of the bale grabbing mechanism provided by the present invention.

[0038] Figure 7 A three-dimensional diagram of the first paving and conveying mechanism provided by the present invention.

[0039] Figure 8 A three-dimensional diagram of the bale grabbing mechanism and the first paving and conveying mechanism provided by the present invention when they are in working state.

[0040] Fig. 9 A stereoscopic diagram from another perspective of the bale grabbing mechanism and the first paving and conveying mechanism provided by the present invention when they are in working state.

[0041] Fig.10 for Fig. 9 A is an enlarged view of the middle image.

[0042] Fig.11 A three-dimensional diagram of the cutting end chamfering mechanism provided by the present invention.

[0043] Fig.12 A three-dimensional diagram from another perspective of the cutting end chamfering mechanism provided by the present invention.

[0044] Fig.13 This is a front view of the cutting end chamfering mechanism provided by the present invention.

[0045] Fig.14 A three-dimensional diagram of the cutting end chamfering mechanism provided by the present invention in a working state.

[0046] Fig.15 A top view of the cutting end chamfering mechanism provided by the present invention when it is in working state.

[0047] Fig.16 A three-dimensional diagram of the second clamping and positioning mechanism provided by the present invention.

[0048] Fig.17 A three-dimensional diagram of the feeding mechanism provided by the present invention.

[0049] Fig.18 The front view of the feeding mechanism provided by the present invention.

[0050] Fig.19 A flow chart of an automatic loading process for a steel arch production line with an I-beam paving cutter provided by the present invention.

[0051] In the figure: 100, material grabbing mechanism; 11, fixed stand; 111, first driving mechanism; 12, telescopic moving frame; 121, first rack; 13, lifting and lowering rod; 131, second rack; 14, crossbeam; 15, electromagnetic magnet; 16, material bundling stand; 17, fixed seat; 18, second driving mechanism; 19, support frame; 200, first paving and conveying mechanism; 21, paving frame; 22, driving sprocket; 23, driving chain; 24, limit stop roller; 25, tension wheel; 26 , third drive mechanism; 27, drive sprocket; 28, mounting seat; 300, cutting end chamfering mechanism; 31, first base; 311, third rack; 312, first guide rail; 32, first moving seat; 321, fourth drive mechanism; 33, first stand; 331, ramp; 332, waste box; 34, fifth drive mechanism; 35, first clamping and positioning mechanism; 351, second stand; 352, sixth drive mechanism; 353, first fixed clamping seat; 354, first moving clamping seat; 355, first roller; 36, lifting mechanism; 361, lift; 362, lifting column; 363, second guide rail; 364, slide; 37, cutting mechanism; 371, seventh drive mechanism; 372, cover; 373, saw blade; 374, connecting frame; 38, slewing bearing; 400, second clamping and positioning mechanism; 41, second clamping and positioning stand; 42, eighth drive mechanism; 43, second fixed clamping seat; 44, second movable clamping seat; 45, second roller; 46 , the third guide rail; 500, the feeding mechanism; 51, the second base; 52, the fourth guide rail; 53, the second moving seat; 54, the support plate; 55, the fourth rack; 56, the ninth driving mechanism; 57, the tenth driving mechanism; 58, the column; 59, the mounting plate; 510, the fixing plate; 511, the guide column; 512, the linear bearing; 513, the limit block; 514, the slider; 515, the through hole; 600, the second paving conveying mechanism; 700, the conveying line in front of the steel arch production line; 8, the I-beam. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] In the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0055] like Figure 1-4 As shown, the present application provides an automatic loading device for a steel arch frame production line with an I-beam paving and cutting head. In some embodiments, it includes a bundle grabbing mechanism 100, a first paving conveying mechanism 200, a cutting end chamfering mechanism 300, a second clamping and positioning mechanism 400, a feeding mechanism 500 and a second paving conveying mechanism 600.

[0056] Furthermore, the bundle grabbing mechanism 100 is used to place the I-beam bundle and grab the I-beams 8 from the I-beam bundle layer by layer; the first paving conveying mechanism 200 is arranged on one side of the bundle grabbing mechanism 100, and the I-beams 8 grabbed by the bundle grabbing mechanism 100 are placed on the first paving conveying mechanism 200, and the I-beams 8 are paved by the first paving conveying mechanism 200; a second paving conveying mechanism 600 is arranged on the side of the first paving conveying mechanism 200 away from the bundle grabbing mechanism 100, and a second clamping and positioning mechanism 400 is arranged at the middle position between the second paving conveying mechanism 600 and the first paving conveying mechanism 200, and the second paving conveying mechanism 600 and the first paving conveying mechanism 200 are connected. The feeding mechanisms 500 are arranged at both sides between the first and second paving and conveying mechanisms 200. The side of each feeding mechanism 500 away from the second clamping and positioning mechanism 400 is provided with a cutting end chamfering mechanism 300. The feeding mechanism 500 is used to convey the I-beam 8 on the first paving and conveying mechanism 200 to the second clamping and positioning mechanism 400 and the cutting end chamfering mechanism 300. The second clamping and positioning mechanism 400 is used to clamp and fix the I-beam 8. The cutting end chamfering mechanism 300 is used to cut and chamfer the ends of the I-beam 8. The feeding mechanism 500 is also used to convey the I-beam 8 after the cutting end and the chamfering end to the second paving and conveying mechanism 600, and the second paving and conveying mechanism 600 paves the I-beam 8. Among them, the I-beam bundle refers to the I-beam 8 placed in bundles.

[0057] Furthermore, a steel arch frame production line front conveyor line 700 is provided on the side of the second paving conveying mechanism 600 away from the cutting end chamfering mechanism 300, and the second paving conveying mechanism 600 is connected to the steel arch frame production line front conveyor line 700, and the second paving conveying mechanism 600 is used to convey the I-beam 8 paved thereon to the steel arch frame production line front conveyor line 700, and the steel arch frame production line front conveyor line 700 conveys the I-beam 8 to the steel arch frame production line.

[0058] like Figure 5-10As shown, in some embodiments, the bundle grabbing mechanism 100 includes a fixed stand 11 and a bundle stand 16 located on one side of the fixed stand 11, the fixed stand 11 is connected to a movable telescopic moving frame 12, the telescopic moving frame 12 is fixedly connected to a fixed seat 17, a liftable lifting rod 13 is connected inside the fixed seat 17, the bottom end of the lift rod 13 is fixedly connected to a cross beam 14, and both sides of the bottom end of the cross beam 14 are fixedly connected to an electromagnetic magnet 15 for grabbing the I-beam 8; the bundle stand 16 is lower than the fixed stand 11, and the bundle stand 16 is used to place I-beam bundles; a first driving mechanism 111 is fixedly connected to the fixed stand 11, and the first driving mechanism 111 is drivingly connected to a gear, and a first rack 121 is provided on the telescopic movable frame 12, and the first rack 121 is meshed with the gear of the first driving mechanism 111; a fixed seat 17 is fixedly connected to the end of the telescopic movable frame 12, and the fixed seat 17 is fixedly connected to the second driving mechanism 18, and the second driving mechanism 18 is drivingly connected to a gear, and a second rack 131 is provided on the lifting and lifting rod 13, and the second rack 131 is meshed with the gear of the second driving mechanism 18.

[0059] In this embodiment, the first driving mechanism 111 drives the gear connected thereto to rotate. Since the gear of the first driving mechanism 111 is meshed with the first rack 121, the rotation of the gear of the first driving mechanism 111 drives the first rack 121 and the telescopic movable frame 12 fixedly connected to the first rack 121 to move, thereby realizing the horizontal movement of the telescopic movable frame 12 on the fixed platform 11. The second driving mechanism 18 drives the gear connected thereto to rotate. Since the gear of the second driving mechanism 18 is meshed with the second rack 131, the rotation of the gear of the second driving mechanism 18 drives the second rack 131 and the lifting and lifting rod 13 fixedly connected to the second rack 131 to move, thereby realizing the lifting and lifting rod 13 to perform lifting and lowering movement in the fixed seat 17. The lifting and lowering rod 13 drives the crossbeam 14 and the electromagnetic magnet 15 to lift and lower, and the electromagnetic magnet 15 absorbs and grabs the bundled I-beams 8 placed on the bundling platform 16, and the telescopic movable frame 12 drives the fixed seat 17, the lifting and lifting rod 13, the crossbeam 14, and the electromagnetic magnet 15 to move horizontally on the fixed platform 11, thereby realizing the conveying of the I-beams 8 absorbed by the electromagnetic magnet 15 to the first paving conveying mechanism 200 layer by layer.

[0060] Optionally, the first driving mechanism 111 and the second driving mechanism 18 are both rotary motors. Support frames 19 are provided on both sides of the bundling rack 16, and the support frames 19 are used to support both sides of the I-beam bundle. The support frames 19 and the bundling rack 16 jointly support the entire I-beam bundle, so that the I-beam bundle is stably placed on the bundling rack 16.

[0061] In some embodiments, the first paving conveying mechanism 200 includes a paving frame 21, and the paving frame 21 is equipped with a third driving mechanism 26 and a transmission chain 23 connected thereto, the third driving mechanism 26 is used to drive the transmission chain 23 to rotate; two transmission chains 23 are arranged on both sides of the paving frame 21, and the output end of the third driving mechanism 26 is drivingly connected to a driving sprocket 27, and the driving sprocket 27 is meshed with the transmission chain 23; the paving frame 21 is equipped with a transmission sprocket 22, and the transmission sprocket 22 is meshed with the transmission chain 23, and the two transmission sprockets 22 are respectively located on both sides of the transmission chain 23; the interior of the paving frame 21 is fixedly connected with a mounting seat 28 near the driving sprocket 27, and a tensioning wheel 25 is installed on the mounting seat 28, and the tensioning wheel 25 abuts against the transmission chain 23; a limiting stop roller 24 is installed at the upper end of one side of the paving frame 21; the limiting stop roller 24 is used to limit the I-beam 8 on the transmission chain 23.

[0062] In this embodiment, the third driving mechanism 26 and the transmission chain 23 are installed on both sides of the paving frame 21. The two transmission chains 23 support the two sides of the I-beam 8 respectively. The rotation of the transmission chain 23 drives the I-beam 8 to move to realize the automatic paving and transportation of the I-beam 8. Among them, the third driving mechanism 26 is used to drive the driving sprocket 27 to rotate. Since the driving sprocket 27 is engaged with the transmission chain 23, the driving sprocket 27 drives the transmission chain 23 to rotate; through the chain drive composed of the transmission sprocket 22 and the transmission chain 23, and connected with the third driving mechanism 26, the rotation feeding of the transmission chain 23 is realized. Exemplarily, the third driving mechanism 26 can be a rotary motor. The transmission chain 23 is tightened by the tensioning wheel 25 to ensure the normal operation of the transmission chain 23. Among them, the limit stop roller 24 of the first paving and conveying mechanism 200 is installed on the upper end of the paving frame 21 away from the bundle grabbing mechanism 100.

[0063] Therefore, the automatic loading device provided in the embodiment of the present application hangs the bundles of I-beams 8 onto the bundling platform 16, and realizes the horizontal movement of the telescopic movable frame 12 of the bundle grabbing mechanism 100 and the vertical lifting movement of the lifting rod 13 to realize the horizontal and lifting movement of the electromagnetic magnet 15, so that the bundles of I-beams 8 placed on the bundling platform 16 are placed layer by layer on the paving frame 21 of the first paving conveying mechanism 200, and the transmission chains 23 on both sides of the paving frame 21 rotate to evenly spread the I-beams 8 on the paving frame 21 piece by piece, thereby realizing the automatic paving operation of the I-beam bundles, improving the automation level of the steel arch frame production line, saving a lot of manpower, reducing labor costs, and having high work efficiency, and being able to realize the automation and continuous production of the steel arch frame production line, and then being able to realize the mass production of steel arch frames, meeting customers' increasingly high demand for automation.

[0064] like Figure 11-15As shown, in some embodiments, the cutting end chamfering mechanism 300 includes a first base 31 and a first movable base 32, the first base 31 is provided with a third rack 311 and a first guide rail 312, the first movable base 32 is movably connected to the first guide rail 312, the first movable base 32 is fixedly installed with a fourth driving mechanism 321, the output end of the fourth driving mechanism 321 passes through the first movable base 32 and is connected to a gear, the gear of the fourth driving mechanism 321 is meshed with the third rack 311, and the fourth driving mechanism 321 is used to drive the gear connected thereto to rotate so that the first movable base 32 moves along the first guide rail 312. 12 moves on the first base 31; the first movable seat 32 is connected to a rotatable first stand 33, one end of the first stand 33 is hinged with a fifth driving mechanism 34, the fifth driving mechanism 34 is used to drive the first stand 33 to rotate, a lifting mechanism 36 is installed on the first stand 33, the lifting mechanism 36 is connected to a cutting mechanism 37, the lifting mechanism 36 is used to drive the cutting mechanism 37 to lift and lower, the cutting mechanism 37 includes a seventh driving mechanism 371 and a saw blade 373 connected to the seventh driving mechanism 371, the seventh driving mechanism 371 is used to drive the saw blade 373 to rotate to cut the I-beam 8.

[0065] In this embodiment, the first movable seat 32 is movably connected to the first base 31 through the first guide rail 312, and can move on the first base 31 along the first guide rail 312 under the driving control of the fourth driving mechanism 321. Exemplarily, the fourth driving mechanism 321 can be a rotary motor, and the seventh driving mechanism 371 can be a rotary motor.

[0066] Furthermore, the lower part of the first frame 33 is installed on the first movable seat 32 through a slewing bearing 38, the fifth driving mechanism 34 is installed on the first movable seat 32, and the output end of the fifth driving mechanism 34 is hinged to a corner of the lower end surface of the first frame 33; the interior of the first frame 33 is a hollow structure and is provided with a slope 331, the upper end surface and the side surface of the first frame 33 are provided with openings, the slope 331 connects the two openings, the saw blade 373 is located directly above the opening of the upper end surface of the first frame 33, and a waste box 332 is provided below the side opening of the first frame 33.

[0067] In this embodiment, the fifth driving mechanism 34 drives its output end to extend and retract. Since the output end of the fifth driving mechanism 34 is hinged to a corner of the lower end surface of the first frame 33, the first frame 33 can rotate on the first movable seat 32 under the action of the fifth driving mechanism 34. Exemplarily, the fifth driving mechanism 34 can be a cylinder. The waste box 332 is used to receive the debris, waste, etc. generated by the saw blade 373 cutting the I-beam 8. The debris, waste, etc. generated when the saw blade 373 rotates to cut the I-beam 8 falls into the waste box 332 along the slope 331 inside the first frame 33. The debris, waste, etc. are collected by the waste box 332 to ensure a clean and tidy on-site construction environment.

[0068] Furthermore, the lifting mechanism 36 includes a lifting column 362 and an elevator 361 installed on the lifting column 362. The lifting screw of the elevator 361 is located in the lifting column 362. A slide groove 364 is provided on one side of the lifting column 362, and second guide rails 363 are provided on both sides. The second guide rail 363 is slidably connected to a connecting frame 374, and the connecting frame 374 passes through the slide groove 364 and is connected to the lifting screw of the elevator 361; the seventh driving mechanism 371 is fixedly connected to the connecting frame 374; and a cover 372 is provided outside the saw blade 373.

[0069] In this embodiment, the lifter 361 is mounted on the lifting column 362, and the lifting screw of the lifter 361 is connected to the connecting frame 374. The lifter 361 drives the connecting frame 374 to move up and down along the second guide rails 363 provided on both sides of the lifting column 362. Optionally, the connecting frame 374 can pass through the slide groove 364 through a connecting plate, and the connecting frame 374 is connected to the lifting screw of the lifter 361 through the connecting plate, so that the lifter 361 drives the connecting frame 374 to move up and down. When the lifter 361 drives the connecting frame 374 to move up and down, the connecting frame 374 drives the entire cutting mechanism 37 to move up and down, so that the lifting mechanism 36 drives the cutting mechanism 37 to move up and down. Among them, the cover 372 plays a role in protecting the saw blade 373.

[0070] In some embodiments, a first clamping and positioning mechanism 35 is also installed on the first movable seat 32. The first clamping and positioning mechanism 35 includes a second frame 351 arranged on one side of the first frame 33. The second frame 351 is installed with a sixth driving mechanism 352, a first fixed clamping seat 353, and a first movable clamping seat 354. The first movable clamping seat 354 is connected to the sixth driving mechanism 352. The I-beam 8 is located between the first fixed clamping seat 353 and the first movable clamping seat 354. The sixth driving mechanism 352 is used to drive the first movable clamping seat 354 to move so that the first movable clamping seat 354 moves toward the first fixed clamping seat 353, thereby clamping the I-beam 8. A rotatable first roller 355 is also installed on the second frame 351. The first roller 355 is located on one side of the first fixed clamping seat 353, and the I-beam 8 is mounted on the first roller 355.

[0071] In this embodiment, the first movable clamping seat 354 is driven to move by the sixth driving mechanism 352 to achieve the clamping and positioning of the I-beam 8. Specifically, when the sixth driving mechanism 352 drives the first movable clamping seat 354 to move toward the first fixed clamping seat 353, the distance between the first movable clamping seat 354 and the first fixed clamping seat 353 is reduced, thereby clamping the I-beam 8; when the sixth driving mechanism 352 drives the first movable clamping seat 354 to move away from the first fixed clamping seat 353, the distance between the first movable clamping seat 354 and the first fixed clamping seat 353 is increased, thereby releasing the I-beam 8. Exemplarily, the sixth driving mechanism 352 can be a cylinder.

[0072] Optionally, with the feeding direction of the first paving conveying mechanism 200 and the second paving conveying mechanism 600 as the X-axis direction, the first bases 31 of the two cutting end chamfering mechanisms 300 are respectively arranged horizontally on both sides of the first paving conveying mechanism 200 and the second paving conveying mechanism 600, and the moving direction of the first movable seat 32 of the cutting end chamfering mechanism 300 is the Y-axis direction, which is perpendicular to the feeding direction of the first paving conveying mechanism 200 and the second paving conveying mechanism 600.

[0073] The present application clamps and fixes the middle position of the I-beam 8 through the second clamping and positioning mechanism 400, and clamps and fixes the two sides of the I-beam 8 through the first clamping and positioning mechanism 35 of the end chamfering mechanism 300 at both ends, thereby achieving clamping and positioning of the entire I-beam 8. When the end-cutting chamfering mechanism 300 is in use, the I-beam 8 is sent to the first roller 355, the first movable seat 32 is driven by the fourth driving mechanism 321 to move to the set position, the fifth driving mechanism 34 works to rotate the first platform 33 by 45°; the clamping and positioning mechanism clamps the I-beam 8; the elevator 361 and the seventh driving mechanism 371 work to drive the saw blade 373 to descend and rotate to chamfer the I-beam 8; after the chamfering is completed, the clamping and positioning mechanism is released, the first movable seat 32 moves, and the fifth driving mechanism 34 returns to the original position, so that the first platform 33 returns to the original end-cutting tangent angle and moves to the end-cutting position in parallel; the clamping and positioning mechanism clamps the I-beam 8; the elevator 361 and the seventh driving mechanism 371 work to drive the saw blade 373 to descend and rotate to saw the end of the I-beam 8. After the chamfering and end-cutting of the I-beam 8 are completed, the clamping and positioning mechanism is released, and the first movable seat 32 returns to the initial position.

[0074] Therefore, the end cutting and chamfering mechanism 300 provided in the embodiment of the present application can realize both automated sawing and chamfering of the end of the I-beam and automated sawing of the end of the I-beam, and can pre-process the welding groove of the end of the I-beam to be welded, thereby improving the welding quality of the I-beam joint, ensuring the welding strength of the I-beam joint, and meeting the process requirements of robot welding when the I-beam is welded. The device has a high degree of automation, reduces manual operation, and has high work efficiency, providing a basis for the subsequent automated and continuous welding of the I-beam, and ensuring the quality of the I-beam welding.

[0075] like Fig.16 As shown, in some embodiments, the second clamping and positioning mechanism 400 includes a second clamping and positioning frame 41 arranged between the first paving and conveying mechanism 200 and the second paving and conveying mechanism 600, and the second clamping and positioning frame 41 is equipped with an eighth driving mechanism 42, a second fixed clamping seat 43, a second movable clamping seat 44, and a third guide rail 46 located between the eighth driving mechanism 42 and the second fixed clamping seat 43. The second movable clamping seat 44 is connected to the eighth driving mechanism 42, and the I-beam 8 is located between the second fixed clamping seat 43 and the second movable clamping seat 44. The eighth driving mechanism 42 is used to drive the second movable clamping seat 44 to move along the third guide rail 46 so that the second movable clamping seat 44 moves toward the second fixed clamping seat 43, thereby clamping the I-beam 8; a rotatable second roller 45 is also installed on the second clamping and positioning frame 41, and two second rollers 45 are located on both sides of the second fixed clamping seat 43, and the I-beam 8 is mounted on the second roller 45.

[0076] In this embodiment, the second movable clamping seat 44 is driven to move along the third guide rail 46 by the eighth driving mechanism 42 to achieve the clamping and positioning of the I-beam 8. Specifically, when the eighth driving mechanism 42 drives the second movable clamping seat 44 to move toward the second fixed clamping seat 43, the distance between the second movable clamping seat 44 and the second fixed clamping seat 43 is reduced, thereby clamping the I-beam 8; when the eighth driving mechanism 42 drives the second movable clamping seat 44 to move away from the second fixed clamping seat 43, the distance between the second movable clamping seat 44 and the second fixed clamping seat 43 is increased, thereby releasing the I-beam 8. Exemplarily, the eighth driving mechanism 42 can be a cylinder; the second clamping and positioning mechanism 400 is used to clamp and fix the middle position of the I-beam 8.

[0077] like Fig.17 and 18As shown, in some embodiments, the feeding mechanism 500 includes a second base 51, a fourth guide rail 52 is provided on the second base 51, the fourth guide rail 52 is connected to a movable second mobile seat 53, a plurality of columns 58 are fixedly connected to the second mobile seat 53, a plurality of columns 58 are fixedly connected to a mounting plate 59, a plurality of columns 58 are fixedly connected to a fixing plate 510 above the plurality of columns 58, the fixing plate 510 is provided with a through hole 515, a ninth driving mechanism 56 is fixedly installed on the mounting plate 59, an output end of the ninth driving mechanism 56 passes through the through hole 515 of the fixing plate 510 and is connected to a support plate 54, the ninth driving mechanism 56 is used to drive the support plate 54 to rise and fall, and the support plate 54 is used to carry the I-beam 8; a fourth rack 55 is provided on the second base 51, and a fourth guide rail 52 is connected to the fourth guide rail 52. The second movable seat 53 is fixedly connected to a plurality of columns 58, a mounting plate 59 is fixedly connected to a fixing plate 510 above the plurality of columns 58, a through hole 515 is provided on the fixing plate 510, and a ninth driving mechanism 56 is fixedly installed on the mounting plate 59, an output end of the ninth driving mechanism 56 passes through the through hole 515 of the fixing plate 510 and is connected to a support plate 54, the ninth driving mechanism 56 is used to drive the support plate 54 to rise and fall, and the support plate 54 is used to carry the I-beam 8; a fourth rack 55 is provided on the second base 51, and a fourth guide rail 52 is connected to the fourth guide rail 52. The seat 53 is fixedly installed with a tenth driving mechanism 57, the output end of the tenth driving mechanism 57 passes through the second movable seat 53 and is connected to a gear, the gear of the tenth driving mechanism 57 is meshed with the fourth rack 55, and the tenth driving mechanism 57 is used to drive the gear connected thereto to rotate so that the second movable seat 53 moves along the fourth guide rail 52 on the second base 51; a slider 514 is fixedly connected to the lower side of the second movable seat 53, and a plurality of sliders 514 are slidably connected to the fourth guide rail 52; a linear bearing 512 is installed in the fixed plate 510, and a guide column 511 is movably connected in the linear bearing 512, and the top of the guide column 511 is fixedly connected to the support plate 54; limit blocks 513 are fixedly connected to both sides of the support plate 54, and the limit blocks 513 are higher than the upper end surface of the support plate 54.

[0078] In this embodiment, the gear is driven to rotate by the tenth driving mechanism 57. Since the gear of the tenth driving mechanism 57 is meshed with the fourth rack 55, the fourth rack 55 is fixedly mounted on the second base 51, so that the tenth driving mechanism 57 and the second movable seat 53 fixedly connected to the tenth driving mechanism 57 move along the fourth guide rail 52 on the second base 51. Optionally, the tenth driving mechanism 57 is a rotary motor. The guide column 511 provides a guiding effect for the lifting and lowering movement of the support plate 54, so that the support plate 54 can be lifted and lowered more smoothly and more accurately, so that the support plate 54 can maintain a horizontal state during the lifting and lowering movement, so as to realize the horizontal lifting of the I-beam 8, and ensure the stability of the I-beam 8 when being lifted. The limit block 513 limits the I-beam 8 carried by the support plate 54 to prevent the I-beam 8 from falling from the support plate 54. Optionally, the ninth driving mechanism 56 is a cylinder, and the cylinder drives the support plate 54 to lift and lower.

[0079] In the present application, two feeding mechanisms 500 are longitudinally symmetrically arranged on both sides of the first paving conveying mechanism 200 and the second paving conveying mechanism 600. The two feeding mechanisms 500 respectively lift up both sides of the I-beam 8, thereby realizing stable conveying operation of the I-beam 8; the moving direction of the second movable seat 53 of the feeding mechanism 500 is the same as the feeding direction of the paving conveying mechanism, which is the X-axis direction. When in use, the second movable seat 53 of the feeding mechanism 500 moves to the set position under the drive of the tenth driving mechanism 57, and the ninth driving mechanisms 56 of the two feeding mechanisms 500 work simultaneously to drive the support plate 54 to rise, lift and separate the I-beam 8 from the equipment of the previous processing procedure; under the drive of the tenth driving mechanism 57, the I-beam 8 is sent to the loading position of the equipment of the next processing procedure; the ninth driving mechanism 56 of the feeding mechanism 500 drives the support plate 54 to descend, and places the I-beam 8 on the equipment of this processing procedure, and the second movable seat 53 of the feeding mechanism 500 returns to continue to move the next I-beam 8, thereby realizing continuous and precise transportation of the I-beams.

[0080] Therefore, the feeding mechanism 500 provided by the present application has a simple structure and reliable operation. The feeding mechanism 500 drives the second movable seat 53 to perform cyclic reciprocating motion on the second base 51 through the tenth driving mechanism 57, thereby realizing continuous and precise transportation of the I-beam, and can meet the connection of the transportation of the I-beam between different processing procedures; the feeding mechanism 500 drives the lifting and lowering of the supporting plate 54 through the ninth driving mechanism 56 to lift or lower the I-beam 8, without manual operation, with a high degree of automation and high work efficiency, and can realize the automatic transportation of the I-beam, and further can realize the automatic continuous production of the steel arch.

[0081] It should be noted that the second paving conveying mechanism 600 has the same structure as the first paving conveying mechanism 200, which will not be described in detail. The front conveying line 700 of the steel arch frame production line is the front conveying line of the steel arch frame production line, which is docked with the second paving conveying mechanism 600. The second paving conveying mechanism 600 can automatically convey the I-beam 8 onto the front conveying line 700 of the steel arch frame production line. The front conveying line 700 of the steel arch frame production line can convey the I-beam 8 to the steel arch frame production line. Among them, the front conveying line 700 of the steel arch frame production line can use a motor-driven chain to drive the roller to rotate to realize the conveyance of the I-beam 8, or other conveying structures can be used, which will not be described in detail.

[0082] In addition, if Fig.19 As shown, the present application also provides an automatic feeding process of a steel arch production line with an I-beam paving cut head, using an automatic feeding device of a steel arch production line with an I-beam paving cut head, comprising the following steps:

[0083] S1, bundling of I-beams; hanging the I-beams 8 bundled with steel arches on the bundling platform 16 of the bundling grabbing mechanism 100, and unbundling; wherein, the automatic feeding device can also be equipped with an operating system, in which the specifications and lengths of the I-beams 8, the number of bundling layers, and the number of each layer are input, and the system automatically calculates according to the input parameters;

[0084] S2, automatically grab the I-beam; the bundle grabbing mechanism 100 starts to work, and under the drive of the first driving mechanism 111, the telescopic movable frame 12 moves, so that the lifting and lifting rod 13 moves to the top of the first I-beam 8 of the first layer of the I-beam bundle; under the drive of the second driving mechanism 18, the lifting and lifting rod 13 descends, so that the electromagnetic magnet 15 presses on the I-beam 8; the electromagnetic magnet 15 is energized to absorb the I-beam 8, and the lifting and lifting rod 13 rises, and the lifting and lifting rod 13 and the electromagnetic magnet are driven by the telescopic movable frame 12 The I-beam 8 attracted by the iron 15 moves toward the paving frame 21 of the first paving conveying mechanism 200 until the I-beam 8 reaches above the loading position of the paving frame 21 of the first paving conveying mechanism 200; the lifting and lifting rod 13 descends to place the I-beam 8 on the paving frame 21 of the first paving conveying mechanism 200; the electromagnetic iron 15 is powered off to release the I-beam 8, the lifting and lifting rod 13 rises, and the telescopic moving frame 12 retreats to above the I-beam bundle on the bundling platform 16, and continues to grab the I-beams 8 layer by layer one by one;

[0085] S3, automatic paving of I-beams; after the I-beams 8 are grabbed and placed on the paving frame 21 of the first paving conveying mechanism 200, the first paving conveying mechanism 200 starts to work, and under the drive of the third driving mechanism 26, the transmission chain 22 works to drive the I-beams 8 to move forward a fixed distance; the subsequent I-beams 8 are paved on the paving frame 21 piece by piece in turn, and when there are I-beams 8 at the limit stop rollers 24 and the loading position on the paving frame 21, the bundle grabbing mechanism 100 stops working. At this time, a certain number of I-beams 8 have been paved and stored on the paving frame 21. The specific number is determined by the production site, and ultimately the working efficiency of the steel arch production line must be ensured;

[0086] S4, the feeding mechanism feeds automatically; when the I-beam 8 on the paving frame 21 of the first paving conveying mechanism 200 reaches the limit stop roller 24, the second movable seat 53 of the feeding mechanism 500 moves to the bottom of the I-beam 8 at the limit stop roller 24 of the paving frame 21, and the ninth driving mechanisms 56 of the two feeding mechanisms 500 work at the same time to lift the I-beam 8, and under the drive of the tenth driving mechanism 57, the I-beam 8 is sent to the second clamping and positioning mechanism 400 and clamped;

[0087] S5, automatic end chamfering; the end chamfering mechanism 300 starts to work, the first movable seat 32 moves to the set position under the drive of the fourth driving mechanism 321, the fifth driving mechanism 34 works to rotate the first stand 33 by 45°; the first clamping and positioning mechanism 35 of the end chamfering mechanism 300 works to clamp the I-beam 8; the elevator 361 and the seventh driving mechanism 371 work to drive the saw blade 373 to descend and rotate to perform chamfering on the I-beam 8; after the chamfering is completed, the first clamping and positioning mechanism 35 is released , the first movable seat 32 moves, and the fifth driving mechanism 34 retreats to the original position, so that the first platform 33 returns to the original cutting end tangent angle and moves to the cutting end position in parallel; the first clamping and positioning mechanism 35 clamps the I-beam 8; the elevator 361 and the seventh driving mechanism 371 work, driving the saw blade 373 to descend and rotate to saw the end of the I-beam 8; after the chamfering and end sawing of the I-beam 8 are completed, the first clamping and positioning mechanism 35 is released, the first movable seat 32 retreats to the initial position, and the second clamping and positioning mechanism 400 is released;

[0088] S6, the feeding mechanism feeds automatically; the ninth driving mechanism 56 of the feeding mechanism 500 drives the support plate 54 to rise, lifts the I-beam 8 and separates it from the second clamping and positioning mechanism 400; driven by the tenth driving mechanism 57, the I-beam 8 is delivered to the loading position of the second paving and conveying mechanism 600; the ninth driving mechanism 56 of the feeding mechanism 500 drives the support plate 54 to descend, and places the I-beam 8 on the paving frame 21 of the second paving and conveying mechanism 600, and the feeding mechanism 500 returns to the paving frame 21 of the first paving and conveying mechanism 200 to continue to transfer the next I-beam 8;

[0089] S7, automatic loading of I-beams; after the I-beams 8 arrive on the paving frame 21 of the second paving and conveying mechanism 600, the third driving mechanism 26 of the second paving and conveying mechanism 600 drives the transmission chain 23 to convey the I-beams 8 forward at an equal distance. When the front conveying line 700 of the steel arch production line sends a material shortage signal, the second paving and conveying mechanism 600 automatically conveys an I-beam 8 onto the front conveying line 700 of the steel arch production line; if the second paving and conveying mechanism 600 is full of I-beams 8, the end chamfering mechanism 300 stops working until the I-beams 8 at the loading position of the second paving and conveying mechanism 600 have been removed;

[0090] S8, entering the steel arch frame production line; the conveyor line 700 in front of the steel arch frame production line conveys the I-beam 8 to the steel arch frame production line.

[0091] In summary, the present application provides an automatic loading device and process for paving and cutting I-beams in a steel arch frame production line, which comprises a bundle grabbing mechanism for grabbing I-beam bundles, a first spreading and conveying mechanism and a second spreading and conveying mechanism for spreading and conveying I-beam bundles, a first clamping and positioning mechanism and a second clamping and positioning mechanism for clamping and positioning the I-beams, an end cutting and chamfering mechanism for cutting the ends of the I-beams and chamfering the ends, and a feeding mechanism for transporting the I-beams between the above-mentioned mechanisms to form a complete production line. The present invention integrates the processes of automatic feeding of I-beam bundles, cutting of I-beam ends and chamfering of ends into one through the layout and matching of the above-mentioned bundle grabbing mechanism, the first spreading and conveying mechanism, the end cutting and chamfering mechanism, the first clamping and positioning mechanism, the second clamping and positioning mechanism, the feeding mechanism and the second spreading and conveying mechanism. It can realize automatic feeding of I-beam bundles one by one, automatic sawing of I-beam ends and automatic chamfering of I-beam ends, and can pre-process welding grooves on the ends of I-beams to be welded, thereby improving the welding quality of I-beam joints and ensuring the welding strength of the I-beam joints. At the same time, it can meet the process requirements of robot welding for I-beam butt welding, has high work efficiency, provides a basis for subsequent automated and continuous welding operations of I-beams, and ensures the quality of I-beam butt welding. The present invention greatly improves production efficiency, reduces production costs, and has a scientific and reasonable process configuration, which further improves the automation level of the steel arch frame production line. It can realize the automation and continuous production of the steel arch frame production line, and then can realize the mass production of steel arch frames, meeting customers' demand for an increasingly high degree of automation.

[0092] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. An automatic feeding device for a steel arch production line with an I-beam paving cutter, characterized in that: include: A bundle grabbing mechanism (100) comprises a bundle rack (16) for placing I-beam bundles, and a movable grabbing device for grabbing the I-beams (8); A first paving and conveying mechanism (200) is arranged on one side of the bundle grabbing mechanism (100), and comprises a paving frame (21), wherein the paving frame (21) is used to receive the I-beams (8) grabbed by the grabbing device and to pave a plurality of I-beams (8); An end cutting and chamfering mechanism (300) is arranged on one side of the first paving and conveying mechanism (200), and comprises a movable and rotatable cutting mechanism (37), wherein the cutting mechanism (37) is configured to cut the end and chamfer the end of the I-beam (8) conveyed from the first paving and conveying mechanism (200) by rotating at different angles; A second spreading and conveying mechanism (600) is arranged on one side of the first spreading and conveying mechanism (200), and is used to receive the I-beam (8) after the end is cut and chamfered by the end cutting and chamfering mechanism (300), and convey the I-beam (8) to the steel arch production line; The feeding mechanism (500) is used to realize the conveyance of the I-beam (8) between the first spreading and conveying mechanism (200), the end cutting and chamfering mechanism (300), and the second spreading and conveying mechanism (600).

2. The automatic feeding device for the steel arch production line with I-beam paving cutting head according to claim 1 is characterized in that: The bundle grabbing mechanism (100), the first paving conveying mechanism (200), and the second paving conveying mechanism (600) are arranged in sequence along the conveying direction of the I-beam (8); a second clamping and positioning mechanism (400), a feeding mechanism (500), and a cutting end chamfering mechanism (300) are provided between the second paving conveying mechanism (600) and the first paving conveying mechanism (200); The grabbing device of the bundle grabbing mechanism (100) grabs the I-beam (8) from the bundle of I-beams placed on the bundle platform (16) and places it on the first paving and conveying mechanism (200), and the first paving and conveying mechanism (200) paves the I-beam (8). The feeding mechanism (500) is used to convey the I-beam (8) on the first paving and conveying mechanism (200) to the second clamping and positioning mechanism (400) and the end-cutting and chamfering mechanism (300), the second clamping and positioning mechanism (400) is used to clamp and fix the I-beam (8), the end-cutting and chamfering mechanism (300) is used to cut the end of the I-beam (8) and chamfer the end, and the feeding mechanism (500) is also used to convey the I-beam (8) after the end is cut and chamfered to the second paving and conveying mechanism (600); A steel arch frame production line front conveyor line (700) is arranged on the side of the second spreading and conveying mechanism (600) away from the cutting end chamfering mechanism (300), and the second spreading and conveying mechanism (600) is connected to the steel arch frame production line front conveyor line (700). The second spreading and conveying mechanism (600) is used to convey the I-beam (8) spread thereon to the steel arch frame production line front conveyor line (700), and the steel arch frame production line front conveyor line (700) conveys the I-beam (8) to the steel arch frame production line.

3. The automatic feeding device for the steel arch production line with I-beam paving cutting head according to claim 2 is characterized in that: The second clamping and positioning mechanism (400) is located in the middle position between the second paving and conveying mechanism (600) and the first paving and conveying mechanism (200), and the two feeding mechanisms (500) are respectively located on the two sides between the second paving and conveying mechanism (600) and the first paving and conveying mechanism (200), and each feeding mechanism (500) is provided with a cutting end chamfering mechanism (300) on the side away from the second clamping and positioning mechanism (400); wherein the second paving and conveying mechanism (600) has the same structure as the first paving and conveying mechanism (200).

4. The automatic feeding device for the steel arch production line with I-beam paving cutting head according to claim 1 is characterized in that: The bundle material grabbing mechanism (100) also includes a fixed stand (11) arranged on one side of the bundle material stand (16); a movable telescopic movable stand (12) is connected to the fixed stand (11); the telescopic movable stand (12) is fixedly connected to a fixed seat (17); a lift rod (13) is connected inside the fixed seat (17); the bottom end of the lift rod (13) is fixedly connected to a cross beam (14); the two sides of the bottom end of the cross beam (14) are fixedly connected to the grabbing device; the grabbing device is an electromagnetic magnet (15); the bundle material stand (16) is lower than the fixed stand (11); the fixed stand (11) is fixed with a lifting rod (13) and a lifting rod (13) is fixedly connected to the lifting rod (13); the lifting rod (13) is fixedly connected to a cross beam (14); the two sides of the bottom end of the cross beam (14) are fixedly connected to the grabbing device; the grabbing device is an electromagnetic magnet (15); The telescopic movable frame (12) is fixedly connected to a first driving mechanism (111), the first driving mechanism (111) is drivably connected to a gear, a first rack (121) is provided on the telescopic movable frame (12), and the first rack (121) is meshed with the gear of the first driving mechanism (111); the fixed seat (17) is fixedly connected to the end of the telescopic movable frame (12), the fixed seat (17) is fixedly connected to a second driving mechanism (18), the second driving mechanism (18) is drivably connected to a gear, a second rack (131) is provided on the lifting and lifting rod (13), and the second rack (131) is meshed with the gear of the second driving mechanism (18).

5. The automatic feeding device for the steel arch production line with I-beam paving cutting head according to claim 1 is characterized in that: The first paving conveying mechanism (200) further comprises a third driving mechanism (26) mounted on the paving frame (21) and a transmission chain (23) connected thereto, wherein the third driving mechanism (26) is used to drive the transmission chain (23) to rotate; two transmission chains (23) are arranged on both sides of the paving frame (21); the output end of the third driving mechanism (26) is drivingly connected to a driving sprocket (27), and the driving sprocket (27) is meshed with the transmission chain (23); the paving frame (21) is mounted with a transmission sprocket (22), and the transmission sprocket (22) is meshed with the transmission chain (23); the two transmission sprockets ( 22) are respectively located on both sides of the transmission chain (23); a mounting seat (28) is fixedly connected to the inside of the paving frame (21) near the driving sprocket (27), and a tensioning wheel (25) is installed on the mounting seat (28), and the tensioning wheel (25) abuts against the transmission chain (23); a limiting stop roller (24) is installed at the upper end of one side of the paving frame (21); the limiting stop roller (24) is used to limit the I-beam (8) on the transmission chain (23), wherein the limiting stop roller (24) of the first paving conveying mechanism (200) is installed at the upper end of the paving frame (21) away from the bundle grabbing mechanism (100).

6. The automatic feeding device for the steel arch production line with I-beam paving cutting head according to claim 1 is characterized in that: The cutting end chamfering mechanism (300) further comprises a first base (31) and a first movable base (32); the first base (31) is provided with a third rack (311) and a first guide rail (312); the first movable base (32) is movably connected to the first guide rail (312); the first movable base (32) is fixedly mounted with a fourth driving mechanism (321); the output end of the fourth driving mechanism (321) passes through the first movable base (32) and is connected to a gear; the gear of the fourth driving mechanism (321) is meshed with the third rack (311); the fourth driving mechanism (321) is used to drive the gear connected thereto to rotate so that the first movable base (32) moves along the third rack (311); A guide rail (312) moves on a first base (31); the first movable seat (32) is connected to a rotatable first frame (33); one end of the first frame (33) is hinged with a fifth driving mechanism (34); the fifth driving mechanism (34) is used to drive the first frame (33) to rotate; a lifting mechanism (36) is installed on the first frame (33); the lifting mechanism (36) is connected to a cutting mechanism (37); the lifting mechanism (36) is used to drive the cutting mechanism (37) to lift; the cutting mechanism (37) includes a seventh driving mechanism (371) and a saw blade (373) connected to the seventh driving mechanism (371); the seventh driving mechanism (3 71) is used to drive the saw blade (373) to rotate to cut the I-beam (8); the lower part of the first frame (33) is installed on the first movable seat (32) through a slewing bearing (38), the fifth driving mechanism (34) is installed on the first movable seat (32), and the output end of the fifth driving mechanism (34) is hinged to a corner of the lower end surface of the first frame (33); the interior of the first frame (33) is a hollow structure and is provided with a slope (331), the upper end surface and the side surface of the first frame (33) are provided with openings, the slope (331) connects the two openings, the saw blade (373) is located directly above the opening on the upper end surface of the first frame (33), and the first A waste box (332) is arranged below the side opening of a stand (33); the lifting mechanism (36) comprises a lifting column (362) and a lifter (361) installed on the lifting column (362); the lifting screw rod of the lifter (361) is located in the lifting column (362); a sliding groove (364) is provided on one side of the lifting column (362); second guide rails (363) are provided on both sides; the second guide rail (363) is slidably connected to a connecting frame (374); the connecting frame (374) passes through the sliding groove (364) and is connected to the lifting screw rod of the lifter (361); the seventh driving mechanism (371) is fixedly connected to the connecting frame (374).

7. The automatic feeding device for the steel arch production line with I-beam paving cutting head according to claim 6 is characterized in that: The first movable seat (32) is also provided with a first clamping and positioning mechanism (35), the first clamping and positioning mechanism (35) comprising a second stand (351) arranged on one side of the first stand (33), the second stand (351) being provided with a sixth driving mechanism (352), a first fixed clamping seat (353), and a first movable clamping seat (354), the first movable clamping seat (354) being connected to the sixth driving mechanism (352), the I-beam (8) being located at the first fixed clamping seat ( 353) and the first movable clamping seat (354), the sixth driving mechanism (352) is used to drive the first movable clamping seat (354) to move, so that the first movable clamping seat (354) moves toward the first fixed clamping seat (353) to clamp the I-beam (8); a rotatable first roller (355) is also installed on the second stand (351), the first roller (355) is located on one side of the first fixed clamping seat (353), and the I-beam (8) is mounted on the first roller (355).

8. The automatic feeding device for the steel arch production line with I-beam paving cutting head according to claim 2 is characterized in that: The second clamping and positioning mechanism (400) comprises a second clamping and positioning frame (41) arranged between the first paving and conveying mechanism (200) and the second paving and conveying mechanism (600), an eighth driving mechanism (42), a second fixed clamping seat (43), a second movable clamping seat (44), and a third guide rail (46) located between the eighth driving mechanism (42) and the second fixed clamping seat (43) are installed on the second clamping and positioning frame (41), the second movable clamping seat (44) is connected to the eighth driving mechanism (42), and the I-beam ( 8) is located between the second fixed clamping seat (43) and the second movable clamping seat (44), and the eighth driving mechanism (42) is used to drive the second movable clamping seat (44) to move along the third guide rail (46) so that the second movable clamping seat (44) moves toward the second fixed clamping seat (43) to clamp the I-beam (8); a rotatable second roller (45) is also installed on the second clamping positioning platform (41), and two second rollers (45) are located on both sides of the second fixed clamping seat (43), and the I-beam (8) is mounted on the second roller (45).

9. The automatic feeding device for the steel arch production line with I-beam paving cutting head according to claim 1 is characterized in that: The feeding mechanism (500) comprises a second base (51), a fourth guide rail (52) is arranged on the second base (51), the fourth guide rail (52) is connected to a movable second movable seat (53), a plurality of columns (58) are fixedly connected to the second movable seat (53), a plurality of the columns (58) are fixedly connected to mounting plates (59), a plurality of the columns (58) are fixedly connected to the tops of the plurality of the columns (58), and the fixing plates (510) are fixedly connected to the fixing plates (510). A through hole (515) is provided, a ninth driving mechanism (56) is fixedly installed on the mounting plate (59), an output end of the ninth driving mechanism (56) passes through the through hole (515) of the fixing plate (510) and is connected to a supporting plate (54), the ninth driving mechanism (56) is used to drive the supporting plate (54) to rise and fall, and the supporting plate (54) is used to carry the I-beam (8); a fourth rack (55) is provided on the second base (51), and the second movable seat (53 ) is fixedly installed with a tenth driving mechanism (57), the output end of the tenth driving mechanism (57) passes through the second moving seat (53) and is connected to a gear, the gear of the tenth driving mechanism (57) is meshed with the fourth rack (55), and the tenth driving mechanism (57) is used to drive the gear connected thereto to rotate so that the second moving seat (53) moves along the fourth guide rail (52) on the second base (51); a slider (514) is fixedly connected below the second moving seat (53), and a plurality of the sliders (514) are slidably connected to the fourth guide rail (52); a linear bearing (512) is installed in the fixed plate (510), a guide column (511) is movably connected in the linear bearing (512), and the top end of the guide column (511) is fixedly connected to the support plate (54); both sides of the support plate (54) are fixedly connected with limit blocks (513), and the limit blocks (513) are higher than the upper end surface of the support plate (54).

10. An automatic feeding process for a steel arch production line with an I-beam paving cutter, characterized in that: The automatic feeding device of the steel arch production line with I-beam paving cutting head according to any one of claims 1 to 9 is used, comprising the following steps: S1, bundling I-beams; hanging the I-beams (8) bundled with steel arches on the bundling stand (16) of the bundling grabbing mechanism (100), and unbundling; S2, automatically grabbing the I-beam; the bundle grabbing mechanism (100) starts to work, and under the drive of the first driving mechanism (111), the telescopic movable frame (12) moves, so that the lifting and lifting rod (13) moves to the top of the first I-beam (8) of the first layer of the I-beam bundle; under the drive of the second driving mechanism (18), the lifting and lifting rod (13) descends, so that the electromagnetic magnet (15) presses on the I-beam (8); the electromagnetic magnet (15) is energized to absorb the I-beam (8), and the lifting and lifting rod (13) rises, and the telescopic movable frame (12) drives the lifting and lifting rod (13) and the electromagnetic magnet (15) to move upward. 5) The attracted I-beam (8) moves toward the paving frame (21) of the first paving conveying mechanism (200) until the I-beam (8) reaches above the loading position of the paving frame (21) of the first paving conveying mechanism (200); the lifting and lifting rod (13) descends to place the I-beam (8) on the paving frame (21) of the first paving conveying mechanism (200); the electromagnetic magnet (15) is powered off to release the I-beam (8), the lifting and lifting rod (13) rises, and the telescopic movable frame (12) retreats to above the I-beam bundle on the bundling platform (16), and continues to grab the I-beams (8) layer by layer one by one; S3, automatic paving of I-beams; after the I-beams (8) are grabbed and placed on the paving frame (21) of the first paving conveying mechanism (200), the first paving conveying mechanism (200) starts to work, and under the drive of the third driving mechanism (26), the transmission chain 22 works to drive the I-beams (8) to move forward a fixed distance; the subsequent I-beams (8) are paved one by one on the paving frame (21) uniformly, and when there are I-beams (8) at the limit stop roller (24) and the loading position on the paving frame (21), the bundle grabbing mechanism (100) stops working, and at this time, a certain number of I-beams (8) have been paved and stored on the paving frame (21); S4, the feeding mechanism automatically feeds the material; when the I-beam (8) on the paving frame (21) of the first paving conveying mechanism (200) reaches the limit stop roller (24), the second movable seat (53) of the feeding mechanism (500) moves to the bottom of the I-beam (8) at the upper limit stop roller (24) of the paving frame (21), and the ninth driving mechanisms (56) of the two feeding mechanisms (500) work simultaneously to lift the I-beam (8), and under the drive of the tenth driving mechanism (57), the I-beam (8) is sent to the second clamping and positioning mechanism (400) and clamped; S5, automatic end chamfering; the end chamfering mechanism (300) starts to work, the first movable seat (32) moves to the set position under the drive of the fourth driving mechanism (321), the fifth driving mechanism (34) works to rotate the first stand (33) by 45 degrees; the first clamping and positioning mechanism (35) of the end chamfering mechanism (300) works to clamp the I-beam (8); the elevator (361) and the seventh driving mechanism (371) work to drive the saw blade (373) to descend and rotate to perform chamfering sawing on the I-beam (8); after the chamfering sawing is completed, the first clamping and positioning mechanism (35) is released , the first movable seat (32) moves and the fifth driving mechanism (34) retreats to the original position, so that the first platform (33) returns to the original cutting end tangent angle and moves to the cutting end position in parallel; the first clamping and positioning mechanism (35) clamps the I-beam (8); the elevator (361) and the seventh driving mechanism (371) work, driving the saw blade (373) to descend and rotate to saw the end of the I-beam (8); after the chamfering and end sawing of the I-beam (8) are completed, the first clamping and positioning mechanism (35) is released, the first movable seat (32) retreats to the initial position, and the second clamping and positioning mechanism (400) is released; S6, the feeding mechanism automatically feeds; the ninth driving mechanism (56) of the feeding mechanism (500) drives the supporting plate (54) to rise, lifts the I-beam (8) and separates it from the second clamping and positioning mechanism (400); driven by the tenth driving mechanism (57), the I-beam (8) is sent to the loading position of the second paving and conveying mechanism (600); the ninth driving mechanism (56) of the feeding mechanism (500) drives the supporting plate (54) to descend, places the I-beam (8) on the paving frame (21) of the second paving and conveying mechanism (600), and the feeding mechanism (500) returns to the paving frame (21) of the first paving and conveying mechanism (200) to continue to transfer the next I-beam (8); S7, automatic loading of I-beams; after the I-beams (8) arrive at the paving frame (21) of the second paving and conveying mechanism (600), the third driving mechanism (26) of the second paving and conveying mechanism (600) drives the transmission chain (23) to convey the I-beams (8) forward at an equal distance; when the front conveying line (700) of the steel arch production line sends a signal of lack of material, the second paving and conveying mechanism (600) automatically conveys an I-beam (8) onto the front conveying line (700) of the steel arch production line; if the second paving and conveying mechanism (600) is already full of I-beams (8), the end chamfering mechanism (300) is suspended until the I-beams (8) at the loading position of the second paving and conveying mechanism (600) have been removed; S8, enter the steel arch production line; The front conveyor line (700) of the steel arch production line conveys the I-beam (8) to the steel arch production line.

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