Automatic feeding device and method for steel pipe machining production line

Abstract

The invention discloses an automatic feeding device and method for a steel pipe machining production line. The automatic feeding device comprises a feeding conveying belt, steel pipe bundles are horizontally placed on the surface of the feeding conveying belt, and the length direction of the steel pipe bundles is perpendicular to the conveying direction of the feeding conveying belt; the distributing conveying belt is parallel to the feeding conveying belt, the front end of the distributing conveying belt and the tail end of the feeding conveying belt are provided with an overlapping section, and the top surface of the distributing conveying belt is lower than the top surface of the feeding conveying belt; and the limiting and clamping device is arranged on one side of the material distributing and conveying belt. According to the automatic feeding device for the steel pipe machining production line, most links of manual operation are completed, the workload of personnel and the risk of industrial injury caused by operation in a dangerous area are reduced, and the condition of safe production is improved; before the binding belt of the steel pipe bundle is cut, the steel pipe bundle is clamped and fixed through the limiting clamping device, so that huge noise caused by scattering and collision of steel pipes when the binding belt is cut off is avoided, noise pollution to the periphery is avoided, and meanwhile hearing damage to workers is also avoided.

Description

Technical Field

[0001] This invention belongs to the technical field of steel pipe processing equipment, and particularly relates to an automated feeding device and method for a steel pipe processing production line. Background Technology

[0002] In the production and processing of steel pipes 101, incoming materials are all whole bundles of steel pipes 101, which are generally tied together with multiple cable ties 102. The processing production line needs to cut the cable ties 102 of the steel pipe bundles 100 and lay them flat on the material rack, and then send them into the workshop for processing one by one. In this process, the unbundling is done manually. Before hoisting the material, the middle cable tie 102 is cut off. After the steel pipe bundle 100 is hoisted onto the material rack, two people simultaneously cut the cable ties 102 at both ends of the steel pipe bundle 100. At this time, the steel pipes 101 roll down naturally due to gravity, colliding with each other and making a loud noise. The workers also need to adjust and straighten the rolled steel pipes 101 and lay them flat on the material rack. Then, another worker will mark them one by one, and then operate the flipping device to convey the steel pipes 101 one by one into the processing workshop. This work requires more than three people to complete. The loud noise seriously affects the workers' hearing and causes great noise pollution to the surrounding residents. At the same time, the workers' operations of cutting the cable ties 102 and straightening the steel pipe 101 are relatively dangerous and are prone to work-related injuries. Summary of the Invention

[0003] In view of the problems existing in the prior art, the purpose of this invention is to provide an automated feeding device and method for a steel pipe processing production line.

[0004] To solve the above problems, the present invention adopts the following technical solution: An automated feeding device for a steel pipe processing production line includes: a feeding conveyor belt, wherein a bundle of steel pipes is placed horizontally on the surface of the feeding conveyor belt with its length direction perpendicular to the conveying direction of the feeding conveyor belt; The material distribution conveyor belt is parallel to the feeding conveyor belt and the front end of the material distribution conveyor belt and the end end of the feeding conveyor belt have an overlapping section. The top surface of the material distribution conveyor belt is lower than the top surface of the feeding conveyor belt. A limiting clamping device is provided on one side of the material distribution conveyor belt to stop the steel pipe bundles and clamp and fix them. The hanger includes a frame, a hanger rod, a crossbeam, and a hanger rod drive device. The frame is located at the end of the material distribution conveyor belt. The hanger rod is slidably connected to the frame and can be raised or lowered relative to the frame or moved back and forth along the conveying direction of the material distribution conveyor belt. The hanger rod drive device is connected between the frame and the hanger rod to drive the hanger rod to be raised or lowered or moved back and forth along the conveying direction of the material distribution conveyor belt. The crossbeam is connected to the lower end of the hanger rod and is parallel to the steel pipe bundle. A cutting device, wherein there are three cutting devices connected below the crossbeam, each corresponding to one of the three cable tie positions on the steel pipe bundle; An electromagnetic chuck is connected below the crossbeam; A transverse track is provided below the hanger, and the extension direction of the transverse track is parallel to the length direction of the steel pipe; And a coding machine, wherein the coding machine is located on one side of the transverse track and the output head of the coding machine is aligned with the side wall of the steel pipe placed on the transverse track.

[0005] Preferably, the feeding conveyor belt and the distributing conveyor belt are two parallel chain conveyors spaced apart.

[0006] Preferably, there are two limiting clamping devices, each set on one side of the two material distribution conveyor belts. Each limiting clamping device includes a mounting frame, a limiting rod, a clamping rod, and a clamping rod drive motor. The mounting frame is set on one side of the material distribution conveyor belt. The limiting rod is fixedly connected to the mounting frame. The upper end of the limiting rod is inclined towards the end of the material distribution conveyor belt so that the limiting rod can fit against the bottom inclined surface of the steel pipe bundle. The clamping rod drive motor is connected to the mounting frame. The lower end of the clamping rod is connected to the rotating shaft of the clamping rod drive motor so that it can swing up and down under the drive of the clamping rod drive motor. When the clamping rod swings upward, it can fit against the other side inclined surface of the bottom of the steel pipe bundle.

[0007] Preferably, the boom includes two uprights and one crossbar. The crossbar is connected to the bottom of the two uprights, the crossbar is slidably connected to the top of the frame, and the two uprights are slidably connected to the crossbar. The boom drive device includes a transverse rack, a lifting rack, a lifting drive motor, a transverse drive motor, a lifting gear, and a transverse gear. The transverse rack is arranged on the top of the frame in a direction parallel to the conveying direction of the material distribution conveyor belt. The lifting rack is arranged on the side wall of the upright in a vertically extending direction. The lifting drive motor and the transverse drive motor are arranged on the crossbar. The lifting gear is connected to the shaft of the lifting drive motor and meshes with the lifting rack. The transverse gear is connected to the shaft of the transverse drive motor and meshes with the transverse rack.

[0008] Preferably, the cutting device is connected to the bottom of the crossbeam via a cross slide rail, allowing the cutting device to slide up and down or along the extension direction of the crossbeam.

[0009] Preferably, the cutting device is one of a cold-cutting saw, an angle grinder, a cutting machine, or an electric shear.

[0010] Preferably, the electromagnetic chuck is an electro-permanent magnet.

[0011] Preferably, the transverse track includes a support frame, and there are several support frames arranged at intervals below the hanger along a direction parallel to the length direction of the steel pipe. The support frame is provided with support rollers and a support roller drive motor for driving the support rollers to rotate.

[0012] Preferably, the automated feeding device for the steel pipe processing production line of the present invention further includes a controller, a pressure sensor is provided on the material distribution conveyor belt, a limit switch is provided on the limit clamping device, and the controller is electrically connected to the feeding conveyor belt, the material distribution conveyor belt, the pressure sensor, the limit clamping device, the limit switch, the boom drive device, the cutting device, the electromagnetic chuck, the transverse track, and the coding machine.

[0013] This invention also discloses an automated feeding method for a steel pipe processing production line, using the aforementioned automated feeding device for a steel pipe processing production line, comprising the following steps: S1. Feeding: First, the steel pipe bundles are manually hoisted onto the feeding conveyor belt. Then, the feeding conveyor belt and the distribution conveyor belt are started, and the steel pipe bundles are conveyed forward through the feeding conveyor belt. S2. Material distribution: When the frontmost bundle of steel pipes reaches the end of the feeding conveyor belt, it falls onto the distribution conveyor belt. At this point, the feeding conveyor belt stops, and the distribution conveyor belt continues to transport the bundle of steel pipes forward. S3. Clamping: When the steel pipe bundle on the material conveyor belt reaches the limit clamping device, the limit clamping device stops the steel pipe bundle and clamps and fixes it. S4. Unbundling: The boom is driven to rise and fall or move back and forth along the conveyor belt to align the three cutting devices on the crossbeam with the three ties on the steel pipe bundle. The ties are then cut by the cutting devices. The two ends of the ties that are cut open are released outward by their own tension and fall off the steel pipe bundle. S5. Sorting: The lifting boom is driven to rise and fall or move back and forth along the conveying direction of the material distribution conveyor belt by the lifting boom drive device so that the electromagnetic chuck on the crossbeam is aligned with the topmost steel pipe of the steel pipe bundle. The steel pipe is held by the electromagnetic chuck. The lifting boom is then driven to rise and fall or move back and forth along the conveying direction of the material distribution conveyor belt by the lifting boom drive device to lift the steel pipe to the transverse track. Finally, the steel pipe is lowered by the electromagnetic chuck. S6. Coding: Coding the steel pipes using a coding machine; S7. Conveying: Finally, the steel pipes are conveyed into the subsequent processing workshop via a transverse track.

[0014] The beneficial effects of this invention are: Compared with the prior art, the advantages of this invention are: The automated feeding device for the steel pipe processing production line of the present invention completes most of the manual operation, reduces the workload of personnel and the risk of work-related injuries in hazardous areas, and improves the conditions for safe production. Before cutting the cable ties of the steel pipe bundles, the steel pipe bundles are clamped and fixed by a limiting clamping device to avoid the steel pipes scattering and colliding and generating huge noise when the cable ties are cut, thus avoiding noise pollution to the surrounding area and also avoiding hearing damage to workers and reducing the risk of occupational diseases. Attached Figure Description

[0015] Figure 1 This is a flowchart of the feeding method of the present invention; Figure 2 This is a schematic diagram of the feeding device of the present invention; Figure 3 This is a schematic diagram of the cutting device of the feeding device of the present invention cutting the cable tie; Figure 4 This is a schematic diagram of the electromagnetic chuck of the feeding device of the present invention adsorbing the steel pipe; Figure 5 This is a schematic diagram of the coding machine of the feeding device of the present invention coding the steel pipe; Figure 6 This is a schematic diagram of the limiting clamping device of the feeding device of the present invention; Figure 7 This is a schematic diagram of the structure of the feed device hanger of the present invention.

[0016] In the diagram: 1. Feeding conveyor belt; 2. Distributing conveyor belt; 3. Limiting clamping device; 31. Mounting frame; 32. Limiting rod; 33. Clamping rod; 34. Clamping rod drive motor; 4. Hanger; 41. Frame; 42. Hanging rod; 421. Upright pole; 422. Horizontal bar; 43. Crossbeam; 44. Hanging rod drive device; 441. Transverse rack; 442. Lifting rack; 443. Lifting drive motor; 444. Transverse drive motor; 445. Lifting gear; 446. Transverse gear; 5. Cutting device; 51. Cross slide rail; 6. Electromagnetic chuck; 7. Transverse track; 71. Support frame; 72. Support roller; 8. Coding machine; 9. Controller; 100. Steel pipe bundle; 101. Steel pipe; 102. Cable tie. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] like Figure 2-6 As shown, the present invention provides a technical solution: an automated feeding device for a steel pipe processing production line, comprising: a feeding conveyor belt 1, and steel pipe bundles 100 horizontally placed on the surface of the feeding conveyor belt 1 with their length direction perpendicular to the conveying direction of the feeding conveyor belt 1; The material distribution conveyor belt 2 is parallel to the feeding conveyor belt 1 and the front end of the material distribution conveyor belt 2 and the end end of the feeding conveyor belt 1 have an overlapping section. The top surface of the material distribution conveyor belt 2 is lower than the top surface of the feeding conveyor belt 1. Limiting clamping device 3, which is set on one side of the material distribution conveyor belt 2 to stop the steel pipe bundle 100 and clamp and fix the steel pipe bundle 100. The hanger 4 includes a frame 41, a rod 42, a crossbeam 43, and a rod drive device 44. The frame 41 is located at the end of the material distribution conveyor belt 2. The rod 42 is slidably connected to the frame 41 and can be raised or lowered relative to the frame 41 or moved back and forth along the conveying direction of the material distribution conveyor belt 2. The rod drive device 44 is connected between the frame 41 and the rod 42 to drive the rod 42 to be raised or lowered or moved back and forth along the conveying direction of the material distribution conveyor belt 2. The crossbeam 43 is connected to the lower end of the rod 42 and is parallel to the steel pipe bundle 100. Cutting device 5, the cutting device 5 is connected below the crossbeam 43 and there are three cutting devices 5, which correspond to the three positions of the cable ties 102 on the steel pipe bundle 100 respectively. Electromagnetic chuck 6, which is connected below the crossbeam 43; A transverse track 7 is provided below the hanger 4, and the extension direction of the transverse track 7 is parallel to the length direction of the steel pipe 101. And a coding machine 8, which is set on one side of the transverse track 7 and the output head of the coding machine 8 is aligned with the side wall of the steel pipe 101 placed on the transverse track 7.

[0019] The feeding conveyor belt 1 and the distributing conveyor belt 2 are both parallel chain conveyors spaced apart.

[0020] In operation, the steel pipe bundle 100 is first manually hoisted onto the feeding conveyor belt 1. The feeding conveyor belt 1 and the distributing conveyor belt 2 are then started. The feeding conveyor belt 1 transports the steel pipe bundle 100 forward. When the foremost bundle 100 reaches the end of the feeding conveyor belt 1, it falls onto the distributing conveyor belt 2. At this point, the feeding conveyor belt 1 is stopped, and the distributing conveyor belt 2 continues to transport the steel pipe bundle 100 forward, thus distributing the material. When the steel pipe bundle 100 reaches the limit clamping device 3, the limit clamping device 3 stops and clamps the steel pipe bundle 100. The boom drive device 44 drives the boom 42 to rise or fall, or to move back and forth along the conveying direction of the distributing conveyor belt 2, so that the three cutting devices 5 on the crossbeam 43 contact the three binding straps 1 on the steel pipe bundle 100. 02 Alignment: The cable tie 102 is cut by the cutting device 5. The two ends of the cable tie 102 are sprung outward by their own tension and fall off the steel pipe bundle 100. Then, the lifting rod 42 is driven to rise and fall or move back and forth along the conveying direction of the material distribution conveyor belt 2 by the lifting rod drive device 44 so that the electromagnetic chuck 6 on the crossbeam 43 is aligned with the uppermost steel pipe 101 of the steel pipe bundle 100. The electromagnetic chuck 6 holds the steel pipe 101. The lifting rod 42 is driven to rise and fall or move back and forth along the conveying direction of the material distribution conveyor belt 2 by the lifting rod drive device 44 to lift the steel pipe onto the transverse track 7. The steel pipe 101 is lowered by the electromagnetic chuck 6. The steel pipe 101 is then coded by the coding machine 8. Finally, the steel pipe 101 is conveyed into the subsequent processing workshop by the transverse track 7.

[0021] The automated feeding device of the steel pipe processing production line of the present invention completes most of the manual operation, reduces the workload of personnel and the risk of work-related injuries in dangerous areas, and improves the conditions for safe production. Before cutting the cable ties 102 of the steel pipe bundle 100, the steel pipe bundle 100 is clamped and fixed by the limiting clamping device 3 to prevent the steel pipes 101 from scattering and colliding and generating huge noise when the cable ties 102 are cut, thus avoiding noise pollution to the surrounding area and also avoiding hearing damage to workers and reducing the risk of occupational diseases. By setting three cutting devices 5 to cut the three cable ties 102 on the steel pipe bundle 100 at the same time, the forces on both ends of the steel pipe bundle 100 are balanced.

[0022] Specifically, there are two limiting clamping devices 3, each set on one side of the two material distribution conveyor belts 2. Each limiting clamping device 3 includes a mounting frame 31, a limiting rod 32, a clamping rod 33, and a clamping rod drive motor 34. The mounting frame 31 is set on one side of the material distribution conveyor belt 2. The limiting rod 32 is fixedly connected to the mounting frame 31. The upper end of the limiting rod 32 is inclined towards the end of the material distribution conveyor belt 2 so that the limiting rod 32 can fit against the bottom inclined surface of the steel pipe bundle 100. The clamping rod drive motor 34 is connected to the mounting frame 31. The lower end of the clamping rod 33 is connected to the rotating shaft of the clamping rod drive motor 34 so that it can swing up and down under the drive of the clamping rod drive motor 34. When the clamping rod 33 swings upward, it can fit against the other side inclined surface of the bottom of the steel pipe bundle 100. When the steel pipe bundle 100 is conveyed forward by the material distribution conveyor belt 2, the steel pipe bundle 100 first encounters the limiting rod 32, which adheres to the inclined surface at the bottom of the steel pipe bundle 100. Then, the clamping rod 33 is driven upward by the drive motor 34, causing the clamping rod 33 to adhere to the other inclined surface at the bottom of the steel pipe bundle 100. This achieves the limiting clamping device 3 stopping the steel pipe bundle 100 and clamping and fixing it. Since the steel pipes 101 are stacked in a triangular shape to form the steel pipe bundle 100, and the bottom surface of the steel pipe bundle 100 is an inverted trapezoidal shape, the inclined limiting rod 32 and clamping rod 33 clamping the steel pipe bundle 100 on both sides can form a stable clamping effect.

[0023] Specifically, the boom 42 includes two uprights 421 and one crossbar 422. The crossbeam 43 is connected to the bottom of the two uprights 421. The crossbar 422 is slidably connected to the top of the frame 41. The two uprights 421 are slidably connected to the crossbar 422. The boom drive device 44 includes a transverse rack 441, a lifting rack 442, a lifting drive motor 443, a transverse drive motor 444, a lifting gear 445, and a transverse gear 446. The transverse rack 441 is parallel to the material distribution conveyor belt 2. The conveying direction is set at the top of the frame 41. The lifting rack 442 is set on the side wall of the upright 421 along the vertical extension direction. The lifting drive motor 443 and the transverse drive motor 444 are set on the crossbar 422. The lifting gear 445 is connected to the rotating shaft of the lifting drive motor 443 and meshes with the lifting rack 442. The transverse gear 446 is connected to the rotating shaft of the transverse drive motor 444 and meshes with the transverse rack 441. The transverse drive motor 444 drives the transverse gear 446 to rotate. Since the transverse gear 446 meshes with the transverse rack 441, it drives the crossbar 422 to move the upright 421 transversely at the top of the frame 41. The lifting drive motor 443 drives the lifting gear 445 to rotate. Since the lifting gear 445 meshes with the lifting rack 442, it drives the upright 421 to move the crossbeam 43 up and down on the crossbar 422.

[0024] Furthermore, the cutting device 5 is connected to the lower part of the crossbeam 43 via a cross slide rail 51, allowing the cutting device 5 to slide up and down or along the extension direction of the crossbeam 43, thereby facilitating the adjustment of the position of the cutting device 5. When the cable tie 102 is wide, the cutting device 5 moves laterally on the crossbeam 43 while cutting.

[0025] Specifically, the cutting device 5 is one of a cold cutting saw, an angle grinder, a cutting machine, or an electric shear.

[0026] Specifically, the electromagnetic chuck 6 is an electro-permanent magnet, which uses electro-permanent magnet technology and can self-hold when power is off, thus preventing the steel pipe 101 from falling off due to power outage.

[0027] Specifically, the transverse track 7 includes several support frames 71, which are arranged at intervals below the hanger 4 along a direction parallel to the length of the steel pipe 101. Each support frame 71 is equipped with support rollers 72 and a support roller drive motor for rotating the support rollers 72. When the steel pipe 101 is placed on the transverse track 7, after marking, the support rollers 72 are rotated by the support roller drive motor, thereby enabling the steel pipe 101 to move laterally along the transverse track 7 into the subsequent processing workshop.

[0028] Furthermore, the automated feeding device for the steel pipe processing production line of the present invention also includes a controller 9, a pressure sensor is provided on the material distribution conveyor belt 2, a limit switch is provided on the limit clamping device 3, and the controller 9 is electrically connected to the feeding conveyor belt 1, the material distribution conveyor belt 2, the pressure sensor, the limit clamping device 3, the limit switch, the boom drive device 44, the cutting device 5, the electromagnetic chuck 6, the transverse track 7, and the coding machine 8. First, the controller 9 starts the feeding conveyor belt 1 and the distributing conveyor belt 2. When the frontmost bundle of steel pipes 100 reaches the end of the feeding conveyor belt 1, it falls onto the distributing conveyor belt 2. The pressure sensor on the distributing conveyor belt 2 senses the bundle of steel pipes 100 and sends an electrical signal to the controller 9. When the controller 9 receives the electrical signal, it stops the feeding conveyor belt 1, and the distributing conveyor belt 2 continues to transport the bundle of steel pipes 100 forward. When the bundle of steel pipes 100 reaches the limit clamping device 3, it triggers the limit switch. The limit switch sends an electrical signal to the controller 9, and when the controller 9 receives the electrical signal, it stops the distributing conveyor belt 2. The controller 9 then controls the boom drive device 44 according to the internal parameters to drive the boom 42 and the crossbeam 43 to move the cutting device 5 onto the cable tie 102. Then, the boom drive device 44 drives the boom 42 and the crossbeam 43 to lower the cutting device 5 and cut the cable tie 102. Then, the boom drive device 44 drives the boom 42 and the crossbeam 43 to raise the cutting device 5 and attach the electromagnetic chuck 6 to one of the uppermost steel pipes 101 of the steel pipe bundle 100. Then, the electromagnetic chuck 6 holds the steel pipe 101. Then, the boom drive device 44 lifts the steel pipe 101 onto the transverse track 7. Then, the electromagnetic chuck 6 lowers the steel pipe 101. Then, the coding machine 8 codes the steel pipe 101. Then, the transverse track 7 conveys the steel pipe 101 into the subsequent processing workshop. Then, the feeding conveyor belt 1 and the distributing conveyor belt 2 are started. This cycle is repeated to achieve fully automated feeding.

[0029] Furthermore, such as Figure 1 As shown, the present invention also discloses an automated feeding method for a steel pipe processing production line, using the aforementioned automated feeding device for a steel pipe processing production line, comprising the following steps: S1. Feeding: First, two large gantry cranes are used manually to lift the steel pipe bundle 100 stacked on the ground onto the feeding conveyor belt 1, straighten it and leave a certain gap, start the feeding conveyor belt 1 and the distribution conveyor belt 2, and transport the steel pipe bundle 100 forward through the feeding conveyor belt 1. S2. Material sorting: When the steel pipe bundle 100 at the front reaches the end of the feeding conveyor belt 1, it falls onto the sorting conveyor belt 2. At this time, the feeding conveyor belt 1 stops, and the steel pipe bundle 100 continues to be conveyed forward by the sorting conveyor belt 2 to achieve automatic material sorting. S3. Clamping: When the steel pipe bundle 100 on the material distribution conveyor belt 2 reaches the limit clamping device 3, the limit clamping device 3 stops the steel pipe bundle 100 and clamps and fixes the steel pipe bundle 100 to prevent the steel pipe 101 from rolling off when the bundle is unbundled. S4. Unbundling: The boom 42 is raised or lowered by the boom drive device 44 or moved back and forth along the conveying direction of the material distribution conveyor belt 2 so that the three cutting devices 5 on the crossbeam 43 are aligned with the three cable ties 102 on the steel pipe bundle 100. The three cutting devices 5 simultaneously cut the three cable ties 102 on the steel pipe bundle 100. The two ends of the cable ties 102 that are cut open are sprung outward by their own tension and fall off the steel pipe bundle 100. S5. Sorting: The boom 42 is raised or lowered by the boom drive device 44 or moved back and forth along the conveying direction of the material distribution conveyor belt 2 so that the electromagnetic chuck 6 on the crossbeam 43 is aligned with the uppermost steel pipe 101 of the steel pipe bundle 100. The steel pipe 101 is held by the electromagnetic chuck 6. The boom 42 is raised or lowered by the boom drive device 44 or moved back and forth along the conveying direction of the material distribution conveyor belt 2 to lift the steel pipe 101 onto the transverse track 7. The steel pipe 101 is then lowered by the electromagnetic chuck 6. S6. Coding: Coding is performed on the steel pipes 101 using a coding machine 8; S7. Conveying: Finally, the steel pipe 101 is conveyed into the subsequent processing workshop via the transverse track 7.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated feeding device for a steel pipe processing production line, characterized in that, include: The feeding conveyor belt (1) and the steel pipe bundle (100) are placed horizontally on the surface of the feeding conveyor belt (1) with their length direction perpendicular to the conveying direction of the feeding conveyor belt (1); The material distribution conveyor belt (2) is parallel to the feeding conveyor belt (1) and the front end of the material distribution conveyor belt (2) and the end end of the feeding conveyor belt (1) are provided with overlapping sections. The top surface of the material distribution conveyor belt (2) is lower than the top surface of the feeding conveyor belt (1). Limiting clamping device (3), the limiting clamping device (3) is set on one side of the material distribution conveyor belt (2) to stop the steel pipe bundle (100) and clamp and fix the steel pipe bundle (100); The hanger (4) includes a frame (41), a rod (42), a crossbeam (43), and a rod drive device (44). The frame (41) is located at the end of the material distribution conveyor belt (2). The rod (42) is slidably connected to the frame (41) and can be raised or lowered relative to the frame (41) or moved back and forth along the conveying direction of the material distribution conveyor belt (2). The rod drive device (44) is connected between the frame (41) and the rod (42) to drive the rod (42) to be raised or lowered or moved back and forth along the conveying direction of the material distribution conveyor belt (2). The crossbeam (43) is connected to the lower end of the rod (42) and is parallel to the steel pipe bundle (100). Cutting device (5), the cutting device (5) is connected below the crossbeam (43) and there are three cutting devices (5), which correspond to the three cable ties (102) positions on the steel pipe bundle (100); An electromagnetic chuck (6) is connected below the crossbeam (43); A transverse track (7) is provided below the hanger (4), and the extension direction of the transverse track (7) is parallel to the length direction of the steel pipe (101); And a coding machine (8), which is set on one side of the transverse track (7) and the output head of the coding machine (8) is aligned with the side wall of the steel pipe (101) placed on the transverse track (7).

2. The automated feeding device for a steel pipe processing production line according to claim 1, characterized in that, The feeding conveyor belt (1) and the distributing conveyor belt (2) are both two parallel chain conveyors spaced apart.

3. The automated feeding device for a steel pipe processing production line according to claim 1, characterized in that, There are two limiting clamping devices (3), which are respectively set on one side of the two material distribution conveyor belts (2). The limiting clamping device (3) includes a mounting frame (31), a limiting rod (32), a clamping rod (33) and a clamping rod drive motor (34). The mounting frame (31) is set on one side of the material distribution conveyor belt (2). The limiting rod (32) is fixedly connected to the mounting frame (31). The upper end of the limiting rod (32) is inclined towards the end of the material distribution conveyor belt (2) so that the limiting rod (32) can fit against the bottom slope of the steel pipe bundle (100). The clamping rod drive motor (34) is connected to the mounting frame (31). The lower end of the clamping rod (33) is connected to the rotating shaft of the clamping rod drive motor (34) so ​​that it is driven by the clamping rod drive motor (34) to swing up and down. When the clamping rod (33) swings upward, it can fit against the other side slope of the bottom of the steel pipe bundle (100).

4. The automated feeding device for a steel pipe processing production line according to claim 1, characterized in that, The boom (42) includes two uprights (421) and a crossbar (422). The crossbeam (43) is connected to the bottom of the two uprights (421). The crossbar (422) is slidably connected to the top of the frame (41). The two uprights (421) are slidably connected to the crossbar (422). The boom drive device (44) includes a transverse rack (441), a lifting rack (442), a lifting drive motor (443), a transverse drive motor (444), a lifting gear (445), and a transverse gear (446). The transverse rack (441) moves along a path parallel to the material distribution conveyor belt ( 2) The conveying direction is set at the top of the frame (41), the lifting rack (442) is set on the side wall of the upright (421) along the vertical extension direction, the lifting drive motor (443) and the transverse drive motor (444) are set on the crossbar (422), the lifting gear (445) is connected to the rotating shaft of the lifting drive motor (443), the lifting gear (445) meshes with the lifting rack (442), the transverse gear (446) is connected to the rotating shaft of the transverse drive motor (444), and the transverse gear (446) meshes with the transverse rack (441).

5. The automated feeding device for a steel pipe processing production line according to claim 1, characterized in that, The cutting device (5) is connected to the crossbeam (43) via a cross slide rail (51), allowing the cutting device (5) to slide up and down or along the extension direction of the crossbeam (43).

6. The automated feeding device for a steel pipe processing production line according to claim 1, characterized in that, The cutting device (5) is one of the following: cold cutting saw, angle grinder, cutting machine, and electric shears.

7. The automated feeding device for a steel pipe processing production line according to claim 1, characterized in that, The electromagnetic chuck (6) is an electro-permanent magnet.

8. The automated feeding device for a steel pipe processing production line according to claim 1, characterized in that, The transverse track (7) includes a support frame (71), and there are several support frames (71). The several support frames (71) are arranged at intervals below the hanger (4) in a direction parallel to the length direction of the steel pipe (101). The support frame (71) is provided with a support roller (72) and a support roller drive motor for driving the support roller (72) to rotate.

9. The automated feeding device for a steel pipe processing production line according to claim 1, characterized in that, It also includes a controller (9), a pressure sensor is provided on the material distribution conveyor belt (2), a limit switch is provided on the limit clamping device (3), and the controller (9) is electrically connected to the feeding conveyor belt (1), the material distribution conveyor belt (2), the pressure sensor, the limit clamping device (3), the limit switch, the boom drive device (44), the cutting device (5), the electromagnetic chuck (6), the transverse track (7), and the coding machine (8).

10. An automated feeding method for a steel pipe processing production line, using the automated feeding device for a steel pipe processing production line according to any one of claims 1-9, characterized in that, Includes the following steps: S1. Feeding: First, manually hoist the steel pipe bundle (100) onto the feeding conveyor belt (1), start the feeding conveyor belt (1) and the distribution conveyor belt (2), and convey the steel pipe bundle (100) forward through the feeding conveyor belt (1); S2. Material distribution: When the frontmost steel pipe bundle (100) reaches the end of the feeding conveyor belt (1), it falls onto the distribution conveyor belt (2). At this time, the feeding conveyor belt (1) is stopped, and the steel pipe bundle (100) continues to be conveyed forward through the distribution conveyor belt (2). S3. Clamping: When the steel pipe bundle (100) on the material distribution conveyor belt (2) reaches the limit clamping device (3), the limit clamping device (3) stops the steel pipe bundle (100) and clamps and fixes the steel pipe bundle (100); S4. Unbundling: Drive the boom (42) to rise and fall or move back and forth along the conveying direction of the material distribution conveyor belt (2) by the boom drive device (44) so ​​that the three cutting devices (5) on the crossbeam (43) are aligned with the three cable ties (102) on the steel pipe bundle (100). Cut the cable ties (102) by the cutting device (5). The two ends of the cable ties (102) at the cut point are sprung outward by their own tension force and fall off the steel pipe bundle (100). S5. Sorting: Drive the boom (42) to lift or move it back and forth along the conveying direction of the material distribution conveyor belt (2) by the boom drive device (44) so ​​that the electromagnetic chuck (6) on the crossbeam (43) is aligned with the uppermost steel pipe (101) of the steel pipe bundle (100). The electromagnetic chuck (6) holds the steel pipe (101). Then, drive the boom (42) to lift or move it back and forth along the conveying direction of the material distribution conveyor belt (2) by the boom drive device (44) to lift the steel pipe onto the transverse track (7). Then, lower the steel pipe (101) by the electromagnetic chuck (6). S6. Marking: Mark the steel pipe (101) with a marking machine (8); S7. Conveying: Finally, the steel pipe (101) is conveyed into the subsequent processing workshop via the transverse track (7).

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