A pipe loading device and a pipe loading and unloading method

Abstract

The present invention provides a pipe feeding device and a pipe feeding and unloading method, which relates to the field of pipe feeding. The scheme adopted is: including a base, and also including: a fixed platform, the fixed platform is arranged on the feeding side of the base; a mobile platform, the mobile platform is located at the feeding end of the fixed platform and is flush with the fixed platform, the mobile platform can move relative to the fixed platform, and the moving direction of the mobile platform is parallel to the moving direction of the mobile frame; two loading carts, the loading carts can move along the mobile platform and the fixed platform, and multiple loading carts can be arranged on the mobile platform along the moving direction of the mobile platform, and the loading carts are connected to a feeding assembly. The present invention can realize the rapid unloading of the remaining pipes that do not need to be loaded, and quickly realize the loading of new materials, shorten the loading waiting time, and ensure that the pipe cutting machine does not stop.

Description

Technical Field

[0001] The present invention relates to the field of pipe feeding, and in particular to a pipe feeding device and a pipe feeding and unloading method. Background Art

[0002] Laser tube cutting machines have the characteristics of high precision, fast cutting, no limitation on cutting patterns, smooth incisions, and low processing costs. They have gradually replaced traditional tube cutting equipment. In the entire processing process, the loading process is an important link. Quickly and accurately transporting the tubes to the processing position can improve the efficiency of the entire processing process. Most tube loading methods use manual loading or semi-automatic loading, which have low efficiency.

[0003] In the related art, a pipe loading device is provided, comprising: a frame; a transmission mechanism, the transmission mechanism is connected to the frame, the transmission mechanism is used to transport the pipe to the frame, the transmission mechanism comprises a bracket and a transmission component, one end of the transmission component is connected to the bracket, and the other end is connected to the frame, the transmission component can move relative to the bracket to drive the pipe on the transmission component to move to the frame; a distribution mechanism, the distribution mechanism is located on the frame, and the distribution mechanism is used to transport a single pipe from the pipe; a feeding mechanism, the input side of the feeding mechanism is connected to the distribution mechanism to receive the pipe from the The single pipe of the said distribution mechanism, the feeding mechanism is used to transport the said single pipe; when using the pipe loading device, when using the pipe loading device, the worker only needs to move the pipe to the transmission component, and the bracket and the transmission component can automatically move the pipe to the rack, and then the distribution mechanism transports the single pipe from the pipe, and transports the single pipe to the output side of the feeding mechanism. When the limiting mechanism determines that the single pipe is delivered to the place, since the device is equipped with a transmission mechanism, a distribution mechanism, and a feeding mechanism, the entire loading process can be realized automatically, thereby improving loading efficiency and reducing labor costs.

[0004] When adopting the above technical solution, since the profile raw materials are loaded in bundles, when a bundle of pipes is hoisted in and does not need to be laser cut in full, and other types of pipes need to be replaced, all the pipes that have not been transported on the transmission mechanism need to be hoisted out, and then other pipes need to be hoisted in. For longer and heavier pipes, hoisting is time-consuming and labor-intensive. At this time, the pipe loading device cannot operate, and the pipe cutting machine will also stop working due to lack of material, affecting processing efficiency. Summary of the Invention

[0005] In order to solve the technical problem in the above-mentioned prior art that the pipe feeding device takes time to unload the remaining profile raw materials, which affects the production efficiency, the present invention provides a pipe feeding device and a pipe loading and unloading method, which can quickly unload the remaining pipes that do not need to be loaded, and quickly load new materials, shortening the loading waiting time and ensuring that the pipe cutting machine does not stop.

[0006] In a first aspect, the present invention provides a technical solution for solving the above-mentioned technical problems: a pipe feeding device comprising a base and further comprising:

[0007] A fixed platform, the fixed platform being arranged on the loading side of the base;

[0008] A mobile platform, the mobile platform is located at the loading end of the fixed platform and is flush with the fixed platform, the mobile platform is movable relative to the fixed platform, and the moving direction of the mobile platform is parallel to the width direction of the base;

[0009] At least two loading carts can move back and forth on the mobile platform and the fixed platform, and a plurality of loading carts can be arranged on the mobile platform along the moving direction of the mobile platform, and the loading carts are connected with a loading assembly.

[0010] The present invention provides a mobile platform, a fixed platform and at least two loading carts. When the remaining pipes need to be unloaded, the loading cart carrying the remaining profile raw materials can be moved out of the loading position as a whole, and the loading cart carrying the new pipe raw materials can be moved to the loading position as a whole to continue loading. Compared with the existing technology of unloading the remaining pipes by hoisting, the time for unloading the remaining pipes can be greatly shortened, the waiting time of the loading device can be shortened, and the pipe cutting machine can be avoided from being shut down, which greatly reduces the adverse effects of the loading and unloading of raw materials on production efficiency.

[0011] Furthermore, a material pulling chain transmission assembly and a material pulling motor are provided on the fixed platform, the material pulling chain transmission assembly includes a material pulling chain, a hook seat is provided on the material pulling chain, a hanging ring is swingably provided on the hook seat, a material hooking cylinder is provided between the hanging ring and the hook seat, the hanging ring can be engaged with the hook on the loading trolley, and the loading trolley is provided with a roller.

[0012] Furthermore, a positioning pin is telescopically provided at the end of the fixed platform, and the positioning pin can be extended into the positioning hole at the end of the movable platform.

[0013] The present invention can ensure that the movable platform and the fixed platform are aligned by arranging the positioning pins, thereby preventing the loading vehicle from colliding during the movement.

[0014] Furthermore, a limiting plate is provided at one end of the fixed platform, and a positioning plate is rotatably provided at the other end. The positioning plate is rotatably connected to a positioning cylinder, and the positioning cylinder is rotatably provided on the fixed platform. The limiting plate and the positioning plate can respectively abut against the two ends of the loading car.

[0015] The present invention can achieve position locking after the loading vehicle moves into position by arranging the limit plate and the positioning plate, thereby preventing the loading vehicle from moving under the action of external force, causing loading position deviation and interference collision.

[0016] Furthermore, the mobile platform is set on the ground through slide rails, and the bottom surface of the mobile platform is connected to a driving cylinder.

[0017] Furthermore, two loading vehicles are provided, and both the fixed platform and the mobile platform are provided with guide rail groups, and the mobile platform is provided with two groups of guide rail groups.

[0018] The present invention realizes position limiting of the loading vehicle by arranging a guide rail group to avoid deviation.

[0019] Furthermore, the loading assembly includes a load-bearing frame and a lifting drive assembly. The load-bearing frame includes a support rod and a lifting rod relatively arranged along the width direction of the loading vehicle. The top of the support rod and the top of the lifting rod are connected by a load-bearing cloth belt. The lifting drive assembly can drive the lifting rod to rise and fall.

[0020] The present invention forms a slope on the feeding cloth belt by lifting and lowering, which facilitates the rising of the pipe raw material, optimizes the stress condition of the feeding component, and prolongs the service life.

[0021] Furthermore, the lifting drive assembly includes a support frame, which is arranged on the ground and connected to the fixed platform, and a feeding chain transmission assembly and a feeding motor are provided on the support frame. The feeding chain transmission assembly includes a feeding chain, and a lifting plate is provided on the feeding chain. The lifting plate can move up and down along the support frame, and the lifting plate can be engaged with the coupling shaft at the top of the lifting rod. The lifting plate can drive the lifting rod to rise and fall, and a support wheel is rotatably provided on the top of the lifting rod, and the support wheel moves along the support frame.

[0022] The present invention arranges the lifting drive assembly on the ground, thereby reducing the load on the loading vehicle and facilitating driving.

[0023] Furthermore, it also includes a movable frame, a loading bracket is provided on the base, the movable frame rides on the base and moves along the width direction of the base, and a shift fork assembly is provided on the movable frame.

[0024] In a second aspect, the present invention further provides a method for loading and unloading pipes, which uses the above-mentioned pipe loading device and includes the following steps:

[0025] S01: The pipes are hoisted onto the corresponding loading vehicle;

[0026] S02: After the mobile platform moves into position, the loading vehicle moves from the mobile platform to the fixed platform;

[0027] S03: After the fork assembly moves to the set position, the loading assembly lifts the pipe to the corresponding position, and the pipe raw material rolls onto the loading bracket;

[0028] S04: The fork assembly moves the first pipe material abutting against its outer surface to the conveying end of the loading bracket;

[0029] S05: Repeat S03 to S04 until the set amount of pipe raw materials is delivered;

[0030] S06: When the remaining pipe materials need to be unloaded, the loading vehicle moves from the fixed platform to the mobile platform;

[0031] S07: The mobile platform moves, and another loading vehicle carrying new pipe raw materials moves from the mobile platform to the fixed platform. S03 to S05 are repeated until a set number of new pipe raw materials are delivered, and the remaining pipe raw materials are hoisted and unloaded.

[0032] It can be seen from the above technical solutions that the present invention has the following advantages:

[0033] The present invention provides a pipe loading device and a pipe loading and unloading method. By arranging a mobile platform, a fixed platform and at least two loading carts, when a plurality of remaining pipes need to be unloaded, the loading cart carrying the remaining profile raw materials can be moved out of the loading position as a whole, and the loading cart carrying the new pipe raw materials can be moved to the loading position as a whole to continue loading. Compared with the existing technology of unloading the remaining pipes by hoisting, the time for unloading the remaining pipes can be greatly shortened, the waiting time of the loading device can be shortened, and the shutdown of the pipe cutting machine can be avoided, which greatly reduces the adverse effects of the loading and unloading of raw materials on production efficiency. By setting the positioning pins, the mobile platform and the fixed platform can be aligned to avoid collisions of the loading trolley during movement; by setting the limit plate and the positioning plate, the position of the loading trolley can be locked after it moves into place, to avoid the loading trolley from moving under the action of external force, causing the loading position deviation and interference collision; by setting the guide rail group, the loading trolley can be limited to avoid offset; by lifting, the loading belt is formed into a slope to facilitate the rising of pipe raw materials, while optimizing the stress condition of the loading component and extending its service life; by setting the lifting drive component on the ground, the load on the loading trolley is reduced, making it easier to drive. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1This is a schematic diagram of the structure of the first embodiment of the present invention. Figure 1 .

[0036] Figure 2 This is a schematic diagram of the structure of the first embodiment of the present invention. Figure 2 .

[0037] Figure 3 This is a schematic structural diagram of a fixed platform in a first specific embodiment of the present invention.

[0038] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0039] Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0040] Figure 6 The structure of the loading vehicle in the first embodiment of the present invention is shown as follows: Figure 1 .

[0041] Figure 7 The structure of the loading vehicle in the first embodiment of the present invention is shown as follows: Figure 2 .

[0042] Figure 8 Schematic diagram of the structure of the feeding assembly in the first embodiment of the present invention Figure 1 .

[0043] Figure 9 Schematic diagram of the structure of the feeding assembly in the first embodiment of the present invention Figure 2 .

[0044] Figure 10 Schematic diagram of the assembly structure of the fork assembly and the movable frame in the first specific embodiment of the present invention.

[0045] In the figure, 100, feeding car; 102, clamping shaft; 103, carrying cloth belt; 104, support rod; 105, roller; 106, lifting rod; 107, support wheel; 200, mobile platform; 300, fixed platform; 302, guide rail assembly; 303, pulling motor; 311, positioning pin; 312, hook seat; 313, hook cylinder; 314, hanging ring; 315, pulling chain; 320, limit plate; 324, positioning plate; 400, support frame; 402, lifting plate; 406, feeding chain; 408, feeding motor; 412, transmission shaft; 500, mobile frame; 501, shift fork; 502, rotating shaft; 503, support; 504, feeding bracket; 505, base; 507, feeding motor. DETAILED DESCRIPTION

[0046] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in this specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this patent. Specific implementation method 1

[0048] like Figure 1 and Figure 2 As shown, this specific embodiment provides a pipe feeding device, including a base 505, a fixed platform 300, a mobile platform 200 and at least two feeding vehicles 100, the length directions of the fixed platform 300, the mobile platform 200 and the base 505 are all consistent with the length direction of the pipe raw material. In this specific embodiment, there are two feeding vehicles 100, and a plurality of feeding brackets 504 are provided on the base 505 along its own length direction; specifically, the fixed platform 300 is set on the ground on the feeding side of the base 505 by anchor bolts, and the mobile platform 200 is located on the fixed platform 300 and the upper surface is flush with the upper surface of the fixed platform 300, the mobile platform 200 can move relative to the fixed platform 300, and the moving direction of the mobile platform 200 is parallel to the width direction of the base 505. In this specific embodiment, the mobile platform 200 is movably set on the ground; the loading cart 100 can move back and forth on the mobile platform 200 and the fixed platform 300, and a plurality of the loading carts 100 can be arranged on the mobile platform 200 along the moving direction of the mobile platform 200, and the loading cart 100 is connected to a loading assembly.

[0049] This specific embodiment sets up a mobile platform 200, a fixed platform 300 and at least two loading carts 100. When the remaining multiple pipes need to be unloaded, the loading cart 100 carrying the remaining profile raw materials can be moved out of the loading position as a whole, and the loading cart 100 carrying the new pipe raw materials can be moved as a whole to the loading position to continue loading. Compared with the existing technology of unloading the remaining pipes by hoisting, the time for unloading the remaining pipes can be greatly shortened, the waiting time of the loading device can be shortened, and the pipe cutting machine can be avoided from being shut down, which greatly reduces the adverse effects of the loading and unloading of raw materials on production efficiency.

[0050] like Figures 3 to 6As shown, in other embodiments, the loading car 100 can actually be equipped with its own drive system. However, in this specific embodiment, out of a comprehensive balance of factors such as overall structural optimization and reducing deadweight to improve operating efficiency, the loading car 100 adopts a passive drive method. A pulling chain transmission assembly and a pulling motor 303 are specially provided on the fixed platform 300; wherein the pulling motor 303 serves as a power source and can drive the pulling chain transmission assembly to rotate. Specifically, the pulling chain transmission assembly includes a pulling chain 315, a driving sprocket and a passive sprocket. The driving sprocket and the passive sprocket are rotatably arranged at the two ends of the fixed platform 300 with the help of bearings. When the pulling motor 303 is working, it will drive the driving sprocket to start rotating through the transmission belt, thereby driving the coordinated operation of the entire pulling chain transmission assembly; a hook seat 312 is also provided on the pulling chain 315, and a swingable hanging ring 314 is realized on the hook seat 312 by a pin shaft. The hanging ring 314 has the function of being mutually engaged with the hook on the feeding car 100, and a hook cylinder 313 is also installed between the hanging ring 314 and the hook seat 312. When the hook cylinder 313 extends outward, the hanging ring 314 will rotate downward under its action, thereby smoothly engaging with the hook. In this way, the pulling chain transmission assembly can pull the feeding car 100 to move, and when the hook cylinder 313 retracts inward, the hanging ring 314 will rotate upward, thereby disengaging from the hook, releasing the connection between the two. connection relationship; in order to ensure the stability and accuracy of the loading trolley 100 during movement, the loading trolley 100 is also equipped with rollers 105; accordingly, a guide rail group 302 is provided on the fixed platform 300, and the guide rail group 302 consists of two guide rails, and the rollers 105 can move smoothly along the two guide rails. This design can effectively avoid collisions of the loading trolley 100 during movement, ensure the safety and smoothness of the entire loading process, and enable production operations to continue in an orderly manner.

[0051] like Figures 3 to 5As shown, the precise positioning of the loading trolley 100 plays a vital role in the stability and efficiency of the entire production process; in an actual working environment, the loading trolley 100 is often disturbed by various vibration factors, and these vibrations are very likely to cause the loading trolley 100 to be displaced, which will inevitably have a serious negative impact on the accuracy of loading and the entire production rhythm; therefore, in this specific embodiment, a limit plate 320 is provided at one end of the fixed platform 300 away from the mobile platform 200, and at the other end of the fixed platform 300, a positioning plate 324 is rotatably provided to avoid interference, specifically, the positioning plate 324 is connected to the piston rod of the positioning cylinder by a hinge, and the positioning cylinder is rotatably provided on the fixed platform 300 by a hinge seat; after such a setting, the limit plate 320 and the positioning plate 324 can respectively abut against the two ends of the loading trolley 100, thereby effectively limiting the position of the loading trolley 100. When the loading trolley 100 moves, the positioning plate 324 will remain in a horizontal or nearly horizontal state under the precise control of the positioning cylinder. In this state, the positioning plate 324 will not interfere with the loading trolley 100. After a period of movement, the loading trolley 100 gradually approaches and finally contacts the limit plate 320. At this time, the proximity switch installed on the limit plate 320 will quickly send a signal, and the positioning cylinder will extend. Under the push of the positioning cylinder, the positioning plate 324 begins to rotate upward, and the positioning plate 324 gradually approaches the end of the loading trolley 100 until it finally abuts against the end of the loading trolley 100 and maintains a stable contact state, thereby achieving precise limiting of the loading trolley 100, so that the loading trolley 100 can still be firmly in the predetermined position when affected by interference factors such as vibration, providing reliable protection for subsequent loading operations and greatly improving the stability of the production process.

[0052] like Figure 1 and Figure 3 As shown, in this specific embodiment, the mobile platform 200 is set on the ground through a slide rail, the bottom surface of the mobile platform 200 is connected to the piston rod of the driving cylinder, the cylinder body of the driving cylinder is set on the ground, and two groups of guide rail groups 302 are provided on the mobile platform 200; preferably, in order to ensure that the guide rail groups of the mobile platform 200 and the fixed platform 300 can be aligned, a positioning hole is provided at the end of the mobile platform 200, and a positioning pin 311 is telescopically provided at the end of the fixed platform 300 through a cylinder, and the positioning pin 311 can be extended into the positioning hole at the end of the mobile platform 200, and the end of the positioning pin 311 is a conical structure. For the convenience of control, a proximity sensor is provided in the positioning hole, and the proximity sensor can respond to the positioning pin 311.

[0053] like Figure 6 and Figure 7As shown, in order to ensure that the pipes can be loaded one by one and avoid stacking of pipes, in this specific embodiment, the loading assembly includes a load-bearing frame and a lifting drive assembly. The load-bearing frame includes a support rod 104 and a lifting rod 106 that are relatively arranged along the width direction of the loading vehicle 100. The top of the support rod 104 and the top of the lifting rod 106 are connected by a load-bearing cloth belt 103. The lifting drive assembly can drive the lifting rod 106 to rise and fall; by driving one end of the load-bearing cloth belt 103 to rise through the lifting rod 106, multiple pipes can be made to slide onto the loading bracket 504 of the base 505, and by controlling the lifting drive assembly, the inclination angle of the multiple pipes as a whole can be effectively controlled to facilitate loading one by one.

[0054] like Figures 8 and 9 As shown, the lifting drive assembly can adopt an electric reel and be arranged on the loading trolley 100. In order to further simplify the structure of the loading trolley 100, reduce the load, and reduce the volume of the loading trolley 100, thereby reducing the footprint of the mobile platform 200, in this specific embodiment, the loading assembly does not move with the loading trolley 100. The lifting drive assembly includes a support frame 400, one side of the support frame 400 is set on the ground by anchor bolts, and the other side is connected to the fixed platform 300 by bolts. A loading chain transmission assembly and a loading motor 408 are provided on the support frame 400. The loading chain transmission assembly includes a loading chain 406, a driving sprocket, a driven sprocket and a guide sprocket. The loading motor 408 drives the active sprocket to rotate through the transmission belt, and a lifting plate 402 is provided on the feeding chain 406, and a slider is provided on the back of the lifting plate 402. The slider can move up and down along the slide groove on the support frame 400, and a clamping groove is provided on the top of the lifting plate 402. The lifting plate 402 can be clamped with the clamping shaft 102 on the top side of the lifting rod 106. The lifting plate 402 can drive the lifting rod 106 to move up and down. The lifting rod 106 includes two sections of cylindrical pipes that are sleeved together and can move axially. Preferably, in order to reduce friction, a support wheel 107 is rotatably provided on the top of the lifting rod 106, and the support wheel 107 moves along the support frame 400.

[0055] like Figures 6 to 8 As shown, preferably, in order to ensure the stability of loading of the loading assembly, four support rods 104 and four lifting rods 106 are respectively provided, and four lifting plates 402 are also provided accordingly. In order to ensure that the four lifting plates 402 can move synchronously, one loading motor 408 is provided, and four groups of loading chain transmission components are provided. Specifically, the loading motor 408 drives the transmission shaft 412 to rotate through the transmission belt, and four driving sprockets are provided on the transmission shaft 412. The driven sprocket and the guide sprocket are rotatably provided on the support frame 400 through bearings; accordingly, four loading brackets 504 are also provided.

[0056] like Figure 10 As shown, in order to realize fully automatic loading, this specific embodiment also includes a mobile frame 500, and a shift fork assembly is provided on the mobile frame 500, and four shift fork assemblies are provided. The mobile frame 500 straddles the base 505 and moves along the width direction of the base 505. In this specific embodiment, the mobile frame 500 includes two supports 503, and a crossbeam is provided between the two supports 503. The shift fork assembly is provided on the crossbeam, and the support 503 can reciprocate along the width direction of the base 505 through a motor and a gear rack structure. The shift fork assembly can move along the width direction of the base 505 with the mobile frame 500. In this specific embodiment, the shift fork assembly includes a shift fork 501, and the shift fork 501 is connected to a lifting shaft, and a rack is provided on the lifting shaft. The rack meshes with the corresponding gear, and the four gears are coaxially arranged on the same rotating shaft 502. One of the shift fork assemblies is connected to a material-dispensing motor 507, and the material-dispensing motor 507 drives the rotating shaft 502 to rotate, thereby driving the four lifting shafts to rise and fall synchronously, realizing When the fork assembly is working, it first moves to the feeding side of the base 505 and is a distance of one pipe diameter or width from the feeding side. When one end of the carrying tape 103 rises to a certain height, one of the pipes slides to the side of the fork 501. A proximity sensor is provided on one side of the fork 501. The height of the proximity sensor from the top surface of the feeding bracket 504 is between one and two times the height or diameter of the pipe. When the proximity sensor sends a signal, it means that there are more than one pipes and the fork 501 side. The wall is in contact with each other. At this time, the shift fork 501 rises up by a distance of the height or diameter of the pipe, and then continues to move toward the fixed platform 300 by a distance of the width or diameter of the pipe driven by the mobile frame 500, pushing the excess pipe back into the carrying cloth belt 103, further ensuring that the pipes are loaded one by one. Then, the shift fork 501 descends, and the mobile frame 500 moves in the opposite direction, driving the pipes to move on the base 505 until they move to the feeding side of the base 505, and are transferred by the loading mechanism of the pipe cutting machine for cutting.

[0057] In this specific embodiment, the material pulling motor 303, the material loading motor 408, and the material shifting motor 507 are all servo motors, which facilitate accurate control. Specific implementation method 2

[0059] This embodiment provides a method for loading and unloading pipes, using the pipe loading device of the first embodiment, including the following steps:

[0060] S01: Pipes are hoisted into bundles onto corresponding loading vehicles 100;

[0061] S02: After the mobile platform 200 moves a set distance driven by the driving cylinder, the positioning pin 311 extends into the positioning hole, the guide rail group on the mobile platform 200 is aligned with the guide rail group on the fixed platform 300, and the feeding motor 408 is activated to drive the hanging ring 314 to move closer to the mobile platform 200. After moving the set distance, the hook cylinder 313 extends to drive the hanging ring 314 to rotate toward the hook at the end of the upper feeding cart 100 until it is engaged. The feeding motor 408 rotates in the opposite direction to drive the feeding cart 100 to move from the mobile platform 200 to the fixed platform 300. When it moves into place, the positioning cylinder is activated so that the feeding cart 100 is clamped by the limit plate 320 and the positioning plate 324.

[0062] S03: After the shift fork assembly moves to the set position on the loading side of the base 505, the loading motor 408 drives the lifting plate 402 to lift, lifting the lifting rod 106 to the corresponding position. One of the pipe materials rolls onto the loading bracket 504 and is blocked by the shift fork. The lifting plate 402 descends, and the carrying belt 103 returns to its original shape.

[0063] S04: The fork assembly moves the first pipe material abutting against its outer surface to the conveying end of the loading bracket 504;

[0064] S05: Repeat S03 to S04 until the set amount of pipe material is delivered, and the height of the lifting rod 106 increases each time it is raised;

[0065] S06: When the remaining pipe material needs to be unloaded, the positioning plate 324 is flipped to a horizontal state, the hook cylinder 313 extends and drives the hanging ring 314 to rotate toward the hook at the end of the upper feed trolley 100 until it is engaged, the loading motor 408 rotates, and the loading trolley 100 is pushed from the fixed platform 300 to the movable platform 200 by the hook seat 312, and the positioning pin 311 retracts;

[0066] S07: The mobile platform 200 moves under the drive of the driving cylinder, and another set of guide rails is aligned with the guide rails on the fixed platform 300. The positioning pin 311 extends, and another loading car 100 carrying new pipe raw materials moves from the mobile platform 200 to the fixed platform 300. Repeat S03 to S05 until the set number of new pipe raw materials are delivered, and the remaining pipe raw materials are hoisted and unloaded.

[0067] From the above specific embodiments, it can be seen that the present invention has the following beneficial effects:

[0068] 1. By providing a mobile platform 200, a fixed platform 300 and at least two loading carts 100, when necessary, the loading cart 100 carrying the remaining profile materials can be moved out of the loading position as a whole, and the loading cart 100 carrying the new pipe materials can be moved to the loading position as a whole to continue loading, which greatly shortens the time for loading the profile materials, shortens the waiting time of the loading device, avoids the pipe cutting machine from stopping, and greatly reduces the adverse effects of the loading and unloading of materials on production efficiency; by providing a positioning pin 311, the mobile platform 200 and the fixed platform 300 can be ensured to be aligned, avoiding collisions of the loading cart 100 during movement;

[0069] 2. By setting the limit plate 320 and the positioning plate 324, the position of the loading vehicle 100 can be locked after it moves into position, so as to prevent the loading vehicle 100 from moving under the action of external force, causing the loading position deviation and interference collision;

[0070] 3. The guide rail group is set to limit the loading car to 100 degrees to avoid deviation; the loading belt is formed into a slope by lifting and lowering to facilitate the rise of pipe raw materials, while optimizing the stress of the loading component and extending its service life;

[0071] 4. By placing the lifting drive assembly on the ground, the load of the loading vehicle 100 is reduced, making it easier to drive.

[0072] This loading device has the advantages of high efficiency, stability, safety and durability, and can bring significant production efficiency improvements to enterprises.

[0073] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pipe feeding device, comprising a base (505), characterized in that: Also includes: A fixed platform (300), the fixed platform (300) being arranged on a loading side of the base (505); a mobile platform (200), the mobile platform (200) being located at a loading end of the fixed platform (300) and flush with the fixed platform (300), the mobile platform (200) being movable relative to the fixed platform (300), and the moving direction of the mobile platform (200) being parallel to the width direction of the base (505); At least two loading vehicles (100), the loading vehicles (100) being capable of reciprocating on the mobile platform (200) and the fixed platform (300), a plurality of the loading vehicles (100) being capable of being arranged on the mobile platform (200) along the moving direction of the mobile platform (200), and the loading vehicles (100) being connected to a loading assembly; A material pulling chain transmission assembly and a material pulling motor (303) are provided on the fixed platform (300), the material pulling chain transmission assembly includes a material pulling chain (315), a hook seat (312) is provided on the material pulling chain (315), a hanging ring (314) is swingably provided on the hook seat (312), a material hooking cylinder (313) is provided between the hanging ring (314) and the hook seat (312), the hanging ring (314) can be engaged with a hook on the loading vehicle (100), and a roller (105) is provided on the loading vehicle (100); The loading assembly includes a carrier frame and a lifting drive assembly, the carrier frame includes a support rod (104) and a lifting rod (106) arranged relatively along the width direction of the loading vehicle (100), the top of the support rod (104) and the top of the lifting rod (106) are connected by a load-bearing cloth belt (103), and the lifting drive assembly can drive the lifting rod (106) to rise and fall; The lifting drive assembly includes a support frame (400), the support frame (400) is set on the ground and connected to the fixed platform (300), the support frame (400) is provided with a feeding chain transmission assembly and a feeding motor (408), the feeding chain transmission assembly includes a feeding chain (406), and the feeding chain (406) is provided with a lifting plate (402), the lifting plate (402) can move up and down along the support frame (400), the lifting plate (402) can be clamped with the clamping shaft (102) at the top of the lifting rod (106), and the lifting plate (402) can drive the lifting rod (106) to move up and down.

2. The pipe feeding device according to claim 1, characterized in that: A positioning pin (311) is telescopically provided at the end of the fixed platform (300), and the positioning pin (311) can be extended into a positioning hole at the end of the mobile platform (200).

3. The pipe feeding device according to claim 2, characterized in that: A limiting plate (320) is provided at one end of the fixed platform (300), and a positioning plate (324) is rotatably provided at the other end. The positioning plate (324) is rotatably connected to a positioning cylinder. The positioning cylinder is rotatably provided on the fixed platform (300). The limiting plate (320) and the positioning plate (324) can respectively abut against two ends of the loading vehicle (100).

4. The pipe feeding device according to claim 1, characterized in that: The mobile platform (200) is arranged on the ground via a slide rail, and the bottom surface of the mobile platform (200) is connected to a driving oil cylinder.

5. The pipe feeding device according to claim 1, characterized in that: Two loading vehicles (100) are provided, and guide rail groups (302) are provided on both the fixed platform (300) and the mobile platform (200), and two groups of guide rail groups (302) are provided on the mobile platform (200).

6. The pipe feeding device according to claim 5, characterized in that: It also includes a movable frame (500), a loading bracket (504) is provided on the base (505), the movable frame (500) of the loading bracket (504) straddles the base (505) and moves along the width direction of the base (505), and a shift fork assembly is provided on the movable frame (500).

7. A method for loading and unloading pipes, characterized in that: The pipe feeding device according to claim 6 comprises the following steps: S01: The pipes are hoisted onto the corresponding loading vehicle; S02: After the mobile platform moves into position, the loading vehicle moves from the mobile platform to the fixed platform; S03: After the fork assembly moves to the set position, the loading assembly lifts the pipe to the corresponding position, and the pipe raw material rolls onto the loading bracket; S04: The fork assembly moves the first pipe material abutting against its outer surface to the conveying end of the loading bracket; S05: Repeat S03 to S04 until the set amount of pipe raw materials is delivered; S06: When the remaining pipe materials need to be unloaded, the loading vehicle moves from the fixed platform to the mobile platform; S07: The mobile platform moves, and another loading vehicle carrying new pipe raw materials moves from the mobile platform to the fixed platform. S03 to S05 are repeated until a set number of new pipe raw materials are delivered, and the remaining pipe raw materials are hoisted and unloaded.

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