Feeding frame

Abstract

The invention relates to the field of laser pipe cutting equipment, in particular to a feeding frame which comprises a driving assembly, a plurality of synchronizing shafts and a plurality of feeding assemblies arranged at intervals, each feeding assembly comprises a rack, a driving shaft, a conveying assembly and at least two supporting legs, and the supporting legs are arranged at the bottoms of the two ends of the rack respectively. The conveying assemblies are arranged on the rack in a one-to-one correspondence mode, the driving shafts are arranged at the discharging end of the rack and can rotate relative to the rack, the driving shafts are in transmission connection with the conveying assemblies in a one-to-one correspondence mode, the synchronizing shafts are arranged between the adjacent driving shafts, the synchronizing shafts are in transmission connection with the driving shafts through couplings, and the driving assemblies are arranged on one supporting leg. The driving assembly is in transmission connection with the synchronizing shaft. The feeding frame forms an independent structure through the supporting legs and does not depend on a lathe bed, positioning and connecting procedures are reduced, installation time and manpower are saved, the position of the feeding frame can be flexibly adjusted according to the layout requirement of an actual production site, and expansion or transformation is easy.

Description

Technical Field

[0001] The invention relates to the field of laser tube cutting equipment, in particular to a loading rack. Background Art

[0002] Traditionally, the feeder rack is typically secured to the side-mounted machine bed at one end. This approach requires precise positioning during installation and involves numerous connection steps, resulting in significant time and labor costs. Furthermore, after the equipment is commissioned, maintenance operations on the feeder assembly and rack are greatly hindered by the machine bed's obstruction. Access to key areas for tasks like checking equipment health and replacing parts is difficult, severely impacting maintenance efficiency and the continuity of normal operation. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that the traditional way of connecting the loading rack to the side of the bed is difficult to install and position, the connection process is cumbersome, and the bed is blocked and difficult to inspect and maintain.

[0004] The solution of the present invention to its technical problem is: a loading rack, which includes a driving assembly, multiple synchronous shafts and multiple loading assemblies arranged at intervals, each of the loading assemblies includes a frame, a driving shaft, a transport assembly and at least two supporting feet, the supporting feet are respectively arranged at the bottom of both ends of the frame, the transport assemblies are arranged on the frame one by one, the driving shaft is arranged at the discharging end of the frame and can rotate relative to the frame, the driving shaft is transmission-connected to the transport assembly one by one, the synchronous shaft is arranged between adjacent driving shafts, the synchronous shaft and the driving shaft are transmission-connected by a coupling, the driving assembly is arranged on one of the supporting feet, and the driving assembly is transmission-connected to the synchronous shaft.

[0005] As a further improvement of the above technical solution, the drive assembly includes a first motor, a driving wheel, a first chain and a driven wheel. The first motor is arranged on one of the supporting legs, the driving wheel is arranged to rotate coaxially with the driving part of the first motor, the driving wheel is connected to the driven wheel through the first chain, and the driven wheel is arranged to rotate coaxially with one of the synchronous shafts.

[0006] As a further improvement of the above technical solution, the transport assembly includes a first sprocket, a second sprocket, a second chain and a plurality of material limiting blocks. The first sprocket is arranged at the feed end of the frame and can rotate relative to the frame. The second sprocket sleeve is arranged on the drive shaft and rotates coaxially with the drive shaft. The first sprocket is connected to the second sprocket through the second chain. The material limiting blocks are arranged at intervals on the outer surface of the second chain, and a transport space for placing pipe materials is formed between adjacent material limiting blocks.

[0007] As a further improvement of the above technical solution, the second chain includes multiple links and multiple L-shaped connectors, the multiple links are connected end to end, the two ends of the side walls of the L-shaped connector are respectively hinged to two adjacent links, the top of the L-shaped connector is provided with a first mounting hole, the bottom surface of the limiting block is provided with a second mounting hole that cooperates with the first mounting hole, the limiting block is detachably mounted on the L-shaped connector by a first bolt, and the first bolt is set through the first mounting hole and the second mounting hole.

[0008] As a further improvement of the above technical solution, the loading assembly further includes a first axis limiting plate and a second axis limiting plate, the first axis limiting plate is arranged at the feeding end of the frame, and the second axis limiting plate is arranged at the discharging end of the frame.

[0009] As a further improvement of the above technical solution, the loading assembly also includes a bearing seat and a first positioning block. The drive shaft is arranged on the frame through the bearing seat. The first positioning block is arranged on the side of the bearing seat away from the loading assembly. The first positioning block is threadedly connected with a screw that is against the bearing seat.

[0010] As a further improvement of the above technical solution, the loading rack also includes a limit switch, which includes a switch body and a triggering member for triggering the switch body. The switch body is arranged on one of the racks and is located upstream of the second axis limiting plate. The switch body is electrically connected to the drive assembly, and the triggering member is provided with an inclined portion inclined toward the transport assembly.

[0011] As a further improvement of the above technical solution, the driving assembly also includes a driven shaft and an adjusting bolt. The frame is provided with an adjusting groove and a second positioning block. The first axis limiting plate and the adjusting groove enclose a setting space for the driven shaft to move forward and backward along the transport direction. The driven shaft is arranged in the setting space. A threaded hole is provided on the driven shaft. The second positioning block is provided with an adjusting bolt threadedly connected to the threaded hole.

[0012] As a further improvement of the above technical solution, the loading rack also includes a protective frame, which is arranged on the side of one of the outermost loading components away from the adjacent loading component. The protective frame includes a baffle and two first columns. The two ends of the baffle are respectively connected and fixed to the two first columns. The height of the baffle matches the height of the loading component, and is used to prevent the pipes placed in the loading component from being displaced in the vertical direction of the transportation direction.

[0013] As a further improvement of the above technical solution, the loading rack also includes two protective nets, all the loading components are arranged between the two protective nets, each of the protective nets includes at least two second columns and multiple horizontal bars, the horizontal bars are arranged vertically, and the two ends of the horizontal bars are respectively connected and fixed to adjacent second columns.

[0014] The beneficial effects of the present invention are as follows: the driving assembly provides power for the synchronous shaft, the synchronous shaft connects adjacent driving shafts, ensures that the driving shafts of multiple loading assemblies rotate synchronously, coordinates the operation of each loading assembly, and ensures the synchronization and stability of material transportation; the frame provides an installation position to ensure the stability of the entire loading assembly structure; the synchronous shaft is arranged at the discharge end, which is convenient for forklifts, overhead cranes and other means to add materials to the loading rack; the transport assembly actually performs the task of transporting materials under the drive shaft; the support feet are respectively arranged at the bottom of both ends of the frame to support the entire loading assembly, so that it can be placed independently and stably, free from dependence on the bed, and convenient for installation and adjustment of position. The loading rack itself forms an independent structure through the supporting legs and does not rely on the bed, which reduces the positioning and connection processes, saves installation time and manpower, and can also flexibly adjust its position according to the layout requirements of the actual production site, making it easy to expand or modify; the drive components are set on the supporting legs, and the loading components are distributed at intervals, so that the key components will not be blocked by the bed, and are convenient for access for maintenance; the loading components are arranged in an interval modular manner, which is easy to disassemble, takes up little space, and is convenient for shipment and transportation; when a component fails, it can be repaired or replaced separately without interfering with the normal operation of other components, facilitating fault detection and processing, and helping to ensure the continuity of overall production. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for describing the embodiments. Obviously, the drawings described only illustrate some embodiments of the present invention, not all of them. Those skilled in the art can derive other design solutions and drawings based on these drawings without inventive effort.

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the present invention; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 yes Figure 1 Enlarged view of point B in the middle; Figure 4 It is a structural schematic diagram of a travel switch according to an embodiment of the present invention.

[0017] Reference numerals in the accompanying drawings: 100 - driving assembly; 110 - first motor; 120 - driving wheel; 130 - first chain; 140 - driven wheel; 150 - driven shaft; 160 - adjusting bolt; 200 - synchronizing shaft; 300 - feeding assembly; 310 - frame; 311 - adjusting slot; 312 - second positioning block; 320 - driving shaft; 330 - transport assembly; 331 - first sprocket; 332 - second sprocket; 333 - second chain; 3331 - chain link; 333 2-L-shaped connector; 3333-first mounting hole; 334-material limit block; 3341-second mounting hole; 340-support foot; 350-first axis limit plate; 360-second axis limit plate; 370-bearing seat; 380-first positioning block; 400-protective frame; 410-baffle; 420-first column; 500-protective net; 510-second column; 520-horizontal bar; 600-travel switch; 610-switch body; 620-trigger; 621-tilt portion. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. In addition, all the connection / connection relationships mentioned in the text do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the invention can be combined interactively without conflicting with each other.

[0019] Traditionally, the feeder rack is typically secured to the side-mounted machine bed at one end. This approach requires precise positioning during installation and involves numerous connection steps, resulting in significant time and labor costs. Furthermore, after the equipment is commissioned, maintenance operations on the feeder assembly and rack are greatly hindered by the machine bed's obstruction. Access to key areas for tasks like checking equipment health and replacing parts is difficult, severely impacting maintenance efficiency and the continuity of normal operation.

[0020] To this end, the present invention proposes a loading rack, referring to Figures 1 to 4, which includes a drive assembly 100, multiple synchronous shafts 200 and multiple loading assemblies 300 arranged at intervals, each of the loading assemblies 300 includes a frame 310, a drive shaft 320, a transport assembly 330 and at least two supporting legs 340, the supporting legs 340 are respectively arranged at the bottom of both ends of the frame 310, the transport assemblies 330 are arranged on the frame 310 in a one-to-one correspondence, the drive shaft 320 is arranged at the discharge end of the frame 310 and can rotate relative to the frame 310, the drive shaft 320 is transmission-connected to the transport assembly 330 in a one-to-one correspondence, the synchronous shaft 200 is arranged between adjacent drive shafts 320, the synchronous shaft 200 and the drive shaft 320 are transmission-connected through a coupling, the drive assembly 100 is arranged on one of the supporting legs 340, and the drive assembly 100 is transmission-connected to the synchronous shaft 200.

[0021] The driving assembly 100 provides power for the synchronous shaft 200, and the synchronous shaft 200 connects the adjacent driving shafts 320 to ensure that the driving shafts 320 of multiple loading assemblies 300 rotate synchronously, coordinate the operation of each loading assembly 300, and ensure the synchronization and stability of material transportation; the frame 310 provides an installation position to ensure the stability of the entire loading assembly 300 structure; the synchronous shaft 200 is set at the discharge end, which is convenient for forklifts, overhead cranes and other means to add materials to the loading rack; the transport assembly 330 is driven by the driving shaft 320 to actually perform the task of transporting materials; the support feet 340 are respectively set at the bottom of both ends of the frame 310 to support the entire loading assembly 300, so that it can be placed independently and stably, free from dependence on the bed, and convenient for installation and adjustment of position. The loading rack itself forms an independent structure through the support legs 340, which is independent of the bed, reducing the positioning and connection processes, saving installation time and manpower, and can also flexibly adjust its position according to the layout requirements of the actual production site, making it easy to expand or modify; the drive component 100 is set on the support legs 340, and the loading components 300 are distributed at intervals, so that key components will not be blocked by the bed, and are convenient to access for maintenance; the loading components 300 are arranged in an interval modular manner, which is easy to disassemble, takes up little space, and is convenient for shipment and transportation; when a component fails, it can be repaired or replaced separately without interfering with the operation of other normal components, facilitating fault detection and processing, and helping to ensure the continuity of overall production.

[0022] During loading, the power generated by the drive assembly 100 is first transmitted to the synchronous shaft 200, which is then transferred from the synchronous shaft 200 to the drive shaft 320 of each loading assembly 300 via a coupling. The drive shaft 320 then drives the connected transport assembly 330 to start operating. Pipes placed on the transport assembly 330 will move from the feed end to the discharge end in the direction of rotation of the transport assembly 330, completing the material loading and conveying process. The tight coordination and collaboration between these components, along with the synchronous shaft 200, ensures the synchronization of the multiple loading assemblies 300, ensuring stable and efficient operation of the entire loading rack.

[0023] In one embodiment, the drive assembly 100 includes a first motor 110, a driving wheel 120, a first chain 130, and a driven wheel 140. The first motor 110 is mounted on one of the support legs 340. The driving wheel 120 is coaxially rotatable with the drive portion of the first motor 110. The driving wheel 120 is transmission-connected to the driven wheel 140 via the first chain 130. The driven wheel 140 is coaxially rotatable with one of the synchronization shafts 200. The drive assembly 100 is constructed by combining a motor, a wheel, and a chain. This makes it easy to assemble and disassemble, making installation and subsequent maintenance more convenient and reducing the risk of failure due to a complex structure. The various components are compactly arranged and mounted on the support legs 340, making rational use of the space of the loading rack itself and not occupying excessive external space. This helps maintain the compactness of the entire loading rack structure and facilitates placement and use in different site environments.

[0024] Pipes placed on transport components tend to become disorganized and may be squeezed, collided, shifted, etc. Therefore, in one embodiment, the transport assembly 330 includes a first sprocket 331, a second sprocket 332, a second chain 333, and a plurality of limiting blocks 334. The first sprocket 331 is disposed at the feed end of the frame 310 and is rotatable relative to the frame 310. The second sprocket 332 is sleeved on the drive shaft 320 and is coaxially rotatable with the drive shaft 320. The first sprocket 331 is transmission-connected to the second sprocket 332 via the second chain 333. The limiting blocks 334 are spaced apart on the outer surface of the second chain 333, and adjacent limiting blocks 334 form a transport space for placing pipes. By arranging limiting blocks 334 at intervals on the outer surface of the second chain 333, a specific transportation space is formed between adjacent limiting blocks 334, which can accurately limit the placement position of the pipe materials, so that the pipe materials will not shift arbitrarily during transportation, thereby ensuring the accuracy and orderliness of loading; with the help of the transmission coordination of the first sprocket 331, the second sprocket 332 and the second chain 333, multiple pipes can be gradually driven and loaded; when loading, only simple manual assistance is required to place the pipes in the transportation space, without the need for complicated operating procedures or professional equipment assistance, reducing the manpower input cost and the requirements for operator skills.

[0025] A fixed-size transport space cannot accommodate pipes of varying sizes. Therefore, in one embodiment, the second chain 333 includes a plurality of chain links 3331 and a plurality of L-shaped connectors 3332. The plurality of chain links 3331 are connected end to end, and the ends of the side walls of the L-shaped connectors 3332 are hinged to two adjacent chain links 3331, respectively. A first mounting hole 3333 is defined at the top of the L-shaped connector 3332, and a second mounting hole mateable with the first mounting hole 3333 is defined on the bottom of the material limiter 334. The material limiter 334 is detachably mounted on the L-shaped connector 3332 via a first bolt, which passes through both the first mounting hole 3333 and the second mounting hole. By using the L-shaped connector as the intermediate connecting component, the installation and disassembly operations of the limiting block 334 become simple and easy; the size and number of the limiting blocks 334 can be determined according to the size of the pipe. With the help of this detachable installation method, it is convenient to increase or decrease the number of limiting blocks 334 or replace limiting blocks 334 of different sizes at any time, so that the transport component 330 can accurately adapt to the loading of pipes of different specifications, thereby enhancing the adaptability of the entire loading rack to a variety of pipes and improving the versatility and practical value of the equipment.

[0026] When the feeding end is just placed and transportation is started or the discharging end is about to complete loading, the pipes are likely to roll out or slide out of the loading rack due to their own inertia. Therefore, in one embodiment, the loading assembly 300 also includes a first axis limiting plate 350 and a second axis limiting plate 360, the first axis limiting plate 350 is arranged at the feeding end of the frame 310, and the second axis limiting plate 360 ​​is arranged at the discharging end of the frame 310. By arranging the first axis limiting plate 350 at the feeding end of the frame 310 and the second axis limiting plate 360 ​​at the discharging end, it is possible to effectively prevent the pipes from rolling out or sliding out of the loading rack due to inertia, avoid damage caused by falling pipes, ensure the safety of the pipe transportation process, and reduce material losses and potential safety risks in the production process; the setting of the two axis limiting plates reduces the risk of collision and damage to other parts of the equipment caused by the pipes detaching from the loading rack.

[0027] Poor coaxiality between the drive shafts 320 may affect the smoothness of power transmission. Therefore, in one embodiment, the loading assembly 300 further includes a bearing seat 370 and a first positioning block 380. The drive shaft 320 is arranged on the frame 310 through the bearing seat 370. The first positioning block 380 is arranged on the side of the bearing seat 370 away from the loading assembly 300. The first positioning block 380 is threadedly connected with a screw that abuts the bearing seat 370. By providing the first positioning block 380 and the screw that cooperates with it, the bearing seat 370 is fine-tuned so that the center of the drive shaft 320 can be accurately adjusted to the same axis. This effectively compensates for the errors caused by processing, installation and other links, ensures good coaxiality between the drive shafts 320, and lays the foundation for subsequent stable and efficient power transmission and material transportation.

[0028] Specifically, the bearing seat 370 is provided with a third mounting hole, and the frame 310 is provided with a fourth mounting hole that matches the third mounting hole. The bearing seat 370 is mounted to the frame 310 using a second bolt, which is inserted through the fourth mounting hole and the fourth mounting hole. Without tightening the second bolt, the position of the screw can be adjusted to fine-tune the bearing seat 370 in the direction of the feed assembly 300 to ensure that the centers of all drive shafts 320 are aligned. After adjustment, tighten the second bolt to lock the position of the bearing seat 370.

[0029] Driven by the transport assembly 330, the pipe may collide with other parts of the equipment due to inertia and other factors, causing damage to the equipment. Therefore, in one embodiment, the loading rack further includes a limit switch 600, which includes a switch body 610 and a trigger member 620 for triggering the switch body 610. The switch body 610 is disposed on one of the frames 310 and upstream of the second axis-limiting plate 360. The switch body 610 is electrically connected to the drive assembly 100, and the trigger member 620 is provided with an inclined portion 621 inclined toward the transport assembly 330. Through the setting of the limit switch 600, when the pipe approaches the second axis limit plate 360 ​​at the discharge end under the drive of the transportation component 330, the limit switch 600 can be triggered by the weight of the pipe itself, thereby stopping the driving component 100, allowing the pipe to move to the exact position in front of the second axis limit plate 360, avoiding the pipe from sliding over the second axis limit plate 360 ​​and sliding out of the loading rack due to inertia and other reasons, and ensuring that the pipe can always stay accurately in the ideal position for subsequent use, thereby ensuring the accuracy of loading.

[0030] After prolonged use, the chain may become loose, resulting in unstable chain transmission. Therefore, in one embodiment, the drive assembly 100 further includes a driven shaft 150 and an adjusting bolt 160. The frame 310 is provided with an adjusting slot 311 and a second positioning block 312. The first axis-limiting plate 350 and the adjusting slot 311 enclose an adjustment space for the driven shaft 150 to move forward and backward along the transport direction. The driven shaft 150 is disposed within the adjustment space. The driven shaft 150 is provided with a threaded hole. The second positioning block 312 is provided with an adjusting bolt 160 threadedly connected to the threaded hole. By turning the head of the adjusting bolt 160, the forward and backward position of the driven shaft 150 in the transport direction can be adjusted, thereby changing the tension of the transport chain. This allows the chain to quickly achieve the appropriate tension, ensuring tight engagement between the chain and the sprocket, and more stable and reliable power transmission. This ensures that materials such as pipes can be smoothly transported at a predetermined speed and direction on the transport assembly 330, maintaining normal loading operations.

[0031] During transportation, pipes may shake, deflect, or even fall in a direction perpendicular to the transportation direction due to external interference, equipment vibration, and other factors. Therefore, in one embodiment, the loading rack further includes a protective frame 400, which is arranged on a side of one of the outermost loading assemblies 300 away from the adjacent loading assemblies 300. The protective frame 400 includes a baffle 410 and two first columns 420. The two ends of the baffle 410 are respectively connected and fixed to the two first columns 420. The height of the baffle 410 matches the height of the loading assembly 300, and is used to prevent the pipes placed in the loading assembly 300 from shifting in a direction perpendicular to the transportation direction. The height of the baffle 410 of the protective frame 400 matches the height of the loading assembly 300, which can effectively prevent the pipe from being displaced in the vertical direction of transportation, ensuring that the pipe always remains in the correct position during transportation, avoiding problems such as chaotic arrangement and falling of pipes due to shaking, offset, etc., and ensuring the stability and accuracy of loading; preventing accidental displacement of pipes in the vertical direction, reducing the risk of pipes falling and injuring operators or damaging surrounding equipment, creating a safer environment for on-site production operations, and meeting the requirements of safe production.

[0032] Operators may mistakenly enter the working area of ​​the loading rack and be easily injured by the moving parts. Therefore, in one embodiment, the loading rack further includes two protective nets 500, and all the loading components 300 are arranged between the two protective nets 500. Each protective net 500 includes at least two second columns 510 and multiple horizontal bars 520. The horizontal bars 520 are arranged vertically, and the two ends of the horizontal bars 520 are respectively connected and fixed to the adjacent second columns 510. The protective nets 500 prevent people from entering the working area of ​​the loading rack at will, avoiding contact between operators and moving parts and reducing the risk of personal injury.

[0033] Preferably, the loading rack further includes a connecting tube, through which the supporting legs 340 near the feed end of the frame 310 are connected and fixed, and the connecting tube is arranged between adjacent supporting legs 340 and located at the bottom of the supporting legs 340. By providing the connecting tube between adjacent supporting legs 340 and fixing it at the bottom of the supporting legs 340, the lateral connection rigidity between the supporting legs 340 can be effectively enhanced, so that the multiple supporting legs 340 form a more stable overall structure.

[0034] The above specifically describes the preferred embodiments of the present invention, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A loading rack, characterized by: It includes a driving assembly, multiple synchronous shafts and multiple feeding assemblies arranged at intervals, each of the feeding assemblies includes a frame, a driving shaft, a transport assembly and at least two supporting feet, the supporting feet are respectively arranged at the bottom of both ends of the frame, the transport assemblies are arranged on the frame in a one-to-one correspondence, the driving shaft is arranged at the discharge end of the frame and can rotate relative to the frame, the driving shaft is transmission-connected to the transport assembly in a one-to-one correspondence, the synchronous shaft is arranged between adjacent driving shafts, the synchronous shaft and the driving shaft are transmission-connected via a coupling, the driving assembly is arranged on one of the supporting feet, and the driving assembly is transmission-connected to the synchronous shaft.

2. The loading rack according to claim 1, characterized in that: The driving assembly includes a first motor, a driving wheel, a first chain and a driven wheel. The first motor is arranged on one of the supporting legs. The driving wheel is arranged to rotate coaxially with the driving part of the first motor. The driving wheel is connected to the driven wheel through the first chain. The driven wheel is arranged to rotate coaxially with one of the synchronization shafts.

3. The loading rack according to claim 1, characterized in that: The transport assembly includes a first sprocket, a second sprocket, a second chain and a plurality of limiting blocks. The first sprocket is arranged at the feed end of the frame and can rotate relative to the frame. The second sprocket sleeve is arranged on the drive shaft and rotates coaxially with the drive shaft. The first sprocket is connected to the second sprocket through the second chain. The limiting blocks are arranged at intervals on the outer surface of the second chain, and a transport space for placing pipe materials is formed between adjacent limiting blocks.

4. The loading rack according to claim 3, characterized in that: The second chain includes multiple links and multiple L-shaped connectors, and the multiple links are connected end to end. The two ends of the side wall of the L-shaped connector are respectively hinged to two adjacent links. A first mounting hole is provided on the top of the L-shaped connector, and a second mounting hole matching the first mounting hole is provided on the bottom surface of the limiting block. The limiting block is detachably mounted on the L-shaped connector by a first bolt, and the first bolt is set through the first mounting hole and the second mounting hole.

5. The loading rack according to claim 1, characterized in that: The loading assembly further includes a first axis limiting plate and a second axis limiting plate, wherein the first axis limiting plate is arranged at the feeding end of the frame, and the second axis limiting plate is arranged at the discharging end of the frame.

6. The loading rack according to claim 1, characterized in that: The feeding assembly also includes a bearing seat and a first positioning block. The drive shaft is arranged on the frame through the bearing seat. The first positioning block is arranged on the side of the bearing seat away from the feeding assembly. The first positioning block is threadedly connected with a screw that abuts against the bearing seat.

7. The loading rack according to claim 5, characterized in that: The loading rack also includes a travel switch, which includes a switch body and a triggering member for triggering the switch body. The switch body is arranged on one of the racks and is located upstream of the second axis limiting plate. The switch body is electrically connected to the drive assembly, and the triggering member is provided with an inclined portion inclined toward the transport assembly.

8. The loading rack according to claim 5, characterized in that: The driving assembly also includes a driven shaft and an adjusting bolt. The frame is provided with an adjusting slot and a second positioning block. The first axis limiting plate and the adjusting slot enclose an adjusting space for the driven shaft to move forward and backward along the transport direction. The driven shaft is arranged in the adjusting space. A threaded hole is provided on the driven shaft. The second positioning block is provided with an adjusting bolt threadedly connected to the threaded hole.

9. The loading rack according to claim 1, characterized in that: The loading rack also includes a protective frame, which is arranged on the side of one of the outermost loading components away from the adjacent loading component. The protective frame includes a baffle and two first columns. The two ends of the baffle are respectively connected and fixed to the two first columns. The height of the baffle matches the height of the loading component, and is used to prevent the pipes placed in the loading component from being displaced in the vertical direction of the transportation direction.

10. The loading rack according to claim 1, characterized in that: The loading rack also includes two protective nets, and all the loading components are arranged between the two protective nets. Each of the protective nets includes at least two second columns and multiple horizontal bars. The horizontal bars are arranged vertically, and the two ends of the horizontal bars are respectively connected and fixed to adjacent second columns.

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